A 240 _ A 240M _ 04 ;QTI0MC0WNEE_
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Designation: A 240/A 240M – 04a
Standard Specification forChromium and Chromium-Nickel Stainless Steel Plate,Sheet, and Strip for Pressure Vessels and for General
Applications1
This standard is issued under the fixed designation A 240/A 240M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification2 covers chromium, chromium-nickel,
and chromium-manganese-nickel stainless steel plate, sheet,
and strip for pressure vessels and for general applications.
1.2 The values stated in either inch-pound units or SI units
are to be regarded separately as standard. The values stated ineach system are not exact equivalents; therefore, each system
must be used independently of the other. Combining values
from the two systems may result in nonconformance with the
specification.
1.3 This specification is expressed in both inch-pound and
SI units. However, unless the order specifies the applicable
“M” specification designation (SI units), the material shall be
furnished in inch-pound units.
2. Referenced Documents
2.1 ASTM Standards: 3
A 370 Test Methods and Definitions for Mechanical Testing
of Steel ProductsA 480/A 480M Specification for General Requirements for
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
A 923 Test Methods for Detecting Detrimental Intermetallic
Phase in Wrought Duplex Austenitic/Ferritic Stainless
Steels
E 112 Test Methods for Determining Average Grain Size
E 527 Practice for Numbering Metals and Alloys (UNS)
2.2 SAE Standard:
J 1086 Practice for Numbering Metals and Alloys (UNS)4
3. General Requirements
3.1 The following requirements for orders for material
furnished under this specification shall conform to the appli-
cable requirements of the current edition of SpecificationA 480/A 480M.
3.1.1 Definitions;
3.1.2 General requirements for delivery;
3.1.3 Ordering information;
3.1.4 Process;
3.1.5 Special tests;
3.1.6 Heat treatment;
3.1.7 Dimensions and permissible variations;
3.1.8 Workmanship, finish and appearance;
3.1.9 Number of tests/test methods;
3.1.10 Specimen preparation;
3.1.11 Retreatment;
3.1.12 Inspection;
3.1.13 Rejection and rehearing;3.1.14 Material test report;
3.1.15 Certification; and
3.1.16 Packaging, marking, and loading.
4. Chemical Composition
4.1 The steel shall conform to the requirements as to
chemical composition specified in Table 1 and shall conform to
applicable requirements specified in Specification A 480/
A 480M.
5. Mechanical Properties
5.1 The material shall conform to the mechanical properties
specified in Table 2.5.2 When specified by the purchaser, Charpy impact tests
shall be performed in accordance with Supplementary Require-
ment S1.
1 This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved March 1, 2004. Published March 2004. Originally
approved in 1940. Last previous edition approved in 2004 as A 240/A 240M – 04.2 For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-240 in Section II of that Code.3 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [email protected]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
4 Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
Warrendale, PA 15096.
1
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International (www.astm.org) for the latest information
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6. Materials for High-Temperature Service
6.1 The austenitic H Types shall conform to an average
grain size of ASTM No. 7 or coarser as measured by Test
Methods E 112.
6.2 Supplementary Requirement S2 shall be invoked when
non-H grade austenitic stainless steels are ordered for ASME
Code applications for service above 1000°F [540°C].
6.3 Grade S31060, unless otherwise specified in the pur-
chase order, shall conform to an average grain size of ASTM
No. 7 or coarser, as measured by Test Methods E 112.
A 240/A 240M – 04a
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T A B L E
1
C o n t i n u e d
U N S
D e s i g n a t i o n B
T y p e C
C a r b o n D
M a n g a n e s e
P h o s -
p h o r u s
S u l f u r
S i l i c o n
C h r o m i u m
N i c k e l
M o l y b d e n u m
N i t r o g e n
C o p p e
r
O t h e r E l e m e n t s E
,
F
S 4 3 9 3 2
. . .
0 . 0
3 0
1 . 0
0
0 . 0
4 0
0 . 0
3 0
1 . 0
0
1 7 . 0 – 1 9 . 0
0 . 5 0
. . .
0 . 0
3 0
. . .
( T i + C b )
[ 0 . 2
0 + 4 ( C + N ) ]
m i n ,
0 . 7
5 m a x ;
A l 0 . 1
5
S 4 3 9 4 0
. . .
0 . 0
3 0
1 . 0
0
0 . 0
4 0
0 . 0
1 5
1 . 0
0
1 7 . 5 – 1 8 . 5
. . .
. . .
. . .
. . .
T i 0 . 1
0 – 0 . 6
0 C b
[ 0 . 3
0 + ( 3 3 C ) ] m i n
S 4 4 4 0 0
4 4 4
0 . 0
2 5
1 . 0
0
0 . 0
4 0
0 . 0
3 0
1 . 0
0
1 7 . 5 – 1 9 . 5
1 . 0 0
1 . 7
5 – 2 . 5
0
0 . 0
3 5
. . .
( T i + C b ) [ 0 . 2
0 + 4 ( C + N ) ]
m i n ,
0 . 8
0 m a x
S 4 4 5 0 0
. . .
0 . 0
2 0
1 . 0
0
0 . 0
4 0
0 . 0
1 2
1 . 0
0
1 9 . 0 – 2 1 . 0
0 . 6 0
. . .
0 . 0
3
0 . 3
0 – 0
. 6 0
C b 1 0 3 ( C + N )
m i n ,
0 . 8
0 m a x
S 4 4 6 2 6
X M - 3 3 J
0 . 0
6
0 . 7
5
0 . 0
4 0
0 . 0
2 0
0 . 7
5
2 5 . 0 – 2 7 . 0
0 . 5 0
0 . 7
5 – 1 . 5
0
0 . 0
4
0 . 2
0
T i 0 . 2
0 – 1 . 0
0 ;
T i 7 ( C + N ) m i n
S 4 4 6 2 7
X M - 2 7 J
0 . 0
1 0 N
0 . 4
0
0 . 0
2 0
0 . 0
2 0
0 . 4
0
2 5 . 0 – 2 7 . 5
0 . 5 0
0 . 7
5 – 1 . 5
0
0 . 0
1 5 N
0 . 2
0
C b 0 . 0
5 – 0 . 2
0
( N i + C u ) 0 . 5
0
S 4 4 6 3 5
. . .
0 . 0
2 5
1 . 0
0
0 . 0
4 0
0 .
0 3 0
0 . 7
5
2 4 . 5 – 2 6 . 0
3 . 5 –
4 . 5
3 . 5 – 4 . 5
0 . 0
3 5
. . .
( T i + C b ) [ 0 . 2
0 + 4
( C + N ) ] m i n ,
0 . 8
0
m a x
S 4 4 6 6 0
. . .
0 . 0
3 0
1 . 0
0
0 . 0
4 0
0 .
0 3 0
1 . 0
0
2 5 . 0 – 2 8 . 0
1 . 0 –
3 . 5
3 . 0 – 4 . 0
0 . 0
4 0
. . .
( T i + C b ) 0 . 2
0 −
1 . 0
0 ,
T i + C b
6 3 ( C + N ) m i n
S 4 4 7 0 0
. . .
0 . 0
1 0
0 . 3
0
0 . 0
2 5
0 .
0 2 0
0 . 2
0
2 8 . 0 – 3 0 . 0
0 . 1 5
3 . 5 – 4 . 2
0 . 0
2 0
0 . 1
5
( C + N ) 0 . 0
2 5
S 4 4 7 3 5
. . .
0 . 0
3 0
1 . 0
0
0 . 0
4 0
0 .
0 3 0
1 . 0
0
2 8 . 0 – 3 0 . 0
1 . 0 0
3 . 6 – 4 . 2
0 . 0
4 5
. . .
( T i + C b )
0 . 2
0 – 1 . 0
0 ,
( T i + C b ) 6 3
( C + N ) m i n
S 4 4 8 0 0
. . .
0 . 0
1 0
0 . 3
0
0 . 0
2 5
0 .
0 2 0
0 . 2
0
2 8 . 0 – 3 0 . 0
2 . 0 0
– 2 . 5
0
3 . 5 – 4 . 2
0 . 0
2 0
0 . 1
5
( C + N ) 0 . 0
2 5
S 4 6 8 0 0
. . .
0 . 0
3 0
1 . 0
0
0 . 0
4 0
0 .
0 3 0
1 . 0
0
1 8 . 0 – 2 0 . 0
0 . 5 0
. . .
0 . 0
3 0
. . .
T i 0 . 0
7 – 0 . 3
0
C b 0 . 1
0 – 0 . 6
0
( T i + C b ) [ 0 . 2
0 + 4
( C + N ) ] m i n ,
0 . 8
0
m a x
A M a x i m u m , u n l e s s r a n g e o r m i n i m u m
i s i n d i c a t e d .
B D e s i g n a t i o n e s t a b l i s h e d i n a c c o r d a n c e w i t h P r a c t i c e E 5 2 7 a n d S A E J 1 0 8 6 .
C U n l e s s o t h e r w i s e i n d i c a t e d , a g r a d e
d e s i g n a t i o n o r i g i n a l l y a s s i g n e d b y t h e A m e r i c a n I r o n a n d S t e e l I n s t i t u t e ( A I S I ) .
D C a r b o n a n a l y s i s s h a l l b e r e p o r t e d t o
n e a r e s t 0 . 0
1 %
e x c e p t f o r t h e l o w - c a r b o n t y p e s ,
w h i c h s h a l l b e r e p o r t e d t o n e a r e s t 0 . 0
0 1 % .
E T h e t e r m s C o l u m b i u m ( C b ) a n d N i o b
i u m ( N b ) b o t h r e l a t e t o t h e s a m e e l e m e n t .
F W h e n t w o m i n i m u m s o r t w o m a x i m u m s a r e l i s t e d f o r a s i n g l e t y p e , a s i n t h e c a s e o f b o t h a v a l u e f r o m a f o r m u l a a n d a n a b s o l u t e v a l u
e ,
t h e h i g h e r m i n i m u m o r l o w e r m a x i m u m s h a l l a
p p l y .
G C o m m o n n a m e , n o t a t r a d e m a r k , w i d e l y u s e d , n o t a s s o c i a t e d w i t h a n y o n e p r o d u c e r .
H I r o n s h a l l b e d e t e r m i n e d a r i t h m e t i c a l l y b y d i f f e r e n c e o f 1 0 0 m i n u s t h e s u m o f t h e o t h e
r s p e c i fi e d e l e m e n t s .
I ( A l + T i ) 0 . 8
5 – 1 . 2
0 .
J N a m i n g s y s t e m d e v e l o p e d a n d a p p l i e d b y A S T M .
K C r + 3 . 3
M o + 1 6 N = 4 0 m i n .
L S 4 0 9 0 0 ( T y p e 4 0 9 ) h a s b e e n r e p l a c e
d b y S 4 0 9 1 0 ,
S 4 0 9 2 0 , a n d S 4 0 9 3 0 .
U n l e s s o t h e
r w i s e s p e c i fi e d i n t h e o r d e r i n g i n f o r m a t i o n , a n o r d e r s p e c i f y i n g S 4 0 9 0 0 o r T y p e 4 0 9 s h a l l b e s a t i s
fi e d b y a n y o n e o f S 4 0 9 1 0 ,
S 4 0 9 2 0 , o r S 4 0 9 3 0 a t t h e o p t i o n o f t h e s
e l l e r . M a t e r i a l m e e t i n g t h e r e q u i r e m e n t s o f S 4 0 9 1 0 ,
S 4 0 9 2 0 , o r S 4 0 9 3 0 , m a y a t t h e o p t i o n o f t h e
m a n u f a c t u r e r b e c e r t i fi e d a s S 4 0 9 0 0 .
M
P l a t e v e r s i o n o f C A - 6 N M .
N P r o d u c t ( c h e c k o r v e r i fi c a t i o n ) a n a l y s
i s t o l e r a n c e o v e r t h e m a x i m u m l i m i t f o r C a n d N
i n X M - 2 7 s h a l l b e 0 . 0
0 2 % .
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T A B L E
2
M e c h a n i c a l T e s t R e q u i r e m e n t s
U N S D e s i g n a t i o n
T y p e A
T e n s i l e S t r e n g t h , m i n
Y i e l d S t r e n g t h , B m i n
E l o n g a
t i o n i n
2 i n . o r 5 0 m m ,
m i n ,
%
H a r d n e s s , m a x C
C o l d B e n d ° D
k s i
M P a
k s i
M P a
B r i n e l l
R o c k w e l l B
A u s t e n i t i c ( C h r o m i u m
- N i c k e l ) ( C h r o m i u m - M a n g a n e s e - N i c k e l )
N 0 8 0 2 0
. . .
8 0
5 5 0
3 5
2 4 0
3 0
E
2 1 7
9 5
n o t r e q u i r e d
N 0 8 3 6 7
S h e e t a n d S t r i p
1 0 0
6 9 0
4 5
3 1 0
3 0
. . .
1 0 0
n o t r e q u i r e d
P l a t e
9 5
6 5 5
4 5
3 1 0
3 0
2 4 1
. . .
n o t r e q u i r e d
N 0 8 8 0 0
8 0 0 F
7 5
5 2 0
3 0 G
2 0 5 G
3 0
H
. . .
. . .
n o t r e q u i r e d
N 0 8 8 1 0
8 0 0 H F
6 5
4 5 0
2 5 G
1 7 0 G
3 0
. . .
. . .
n o t r e q u i r e d
N 0 8 8 1 1
. . .
6 5
4 5 0
2 5
1 7 0
3 0
. . .
. . .
n o t r e q u i r e d
N 0 8 9 0 4
9 0 4 L F
7 1
4 9 0
3 1
2 2 0
3 5
. . .
9 0
n o t r e q u i r e d
N 0 8 9 2 6
. . .
9 4
6 5 0
4 3
2 9 5
3 5
. . .
. . .
n o t r e q u i r e d
S 2 0 1 0 0
2 0 1 - 1
I
7 5
5 1 5
3 8
2 6 0
4 0
2 1 7
9 5
. . .
S 2 0 1 0 0
2 0 1 - 2
I
9 5
6 5 5
4 5
3 1 0
4 0
2 4 1
1 0 0
. . .
S 2 0 1 0 3
2 0 1 L F
9 5
6 5 5
3 8
2 6 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 2 0 1 5 3
2 0 1 L N F
9 5
6 5 5
4 5
3 1 0
4 5
2 4 1
1 0 0
n o t r e q u i r e d
S 2 0 1 6 1
. . .
1 2 5
8 6 0
5 0
3 4 5
4 0
2 5 5
2 5 J
n o t r e q u i r e d
S 2 0 2 0 0
2 0 2
9 0
6 2 0
3 8
2 6 0
4 0
2 4 1
. . .
. . .
S 2 0 4 0 0
. . .
9 5
6 5 5
4 8
3 3 0
3 5
2 4 1
1 0 0
n o t r e q u i r e d
S 2 0 9 1 0
X M - 1 9 K
S h e e t a n d S t r i p
P l a t e
1 0 5
1 0 0
7 2 5
6 9 0
6 0
5 5
4 1 5
3 8 0
3 0 3 5
2 4 1
2 4 1
1 0 0
1 0 0
n o t r e q u i r e d
n o t r e q u i r e d
S 2 1 6 0 0
X M - 1 7 J
S h e e t a n d S t r i p
P l a t e
1 0 0
9 0
6 9 0
6 2 0
6 0
5 0
4 1 5
3 4 5
4 0 4 0
2 4 1
2 4 1
1 0 0
1 0 0
n o t r e q u i r e d
n o t r e q u i r e d
S 2 1 6 0 3
X M - 1 8 K
S h e e t a n d S t r i p
P l a t e
1 0 0
9 0
6 9 0
6 2 0
6 0
5 0
4 1 5
3 4 5
4 0 4 0
2 4 1
2 4 1
1 0 0
1 0 0
n o t r e q u i r e d
n o t r e q u i r e d
S 2 1 8 0 0
. . .
9 5
6 5 5
5 0
3 4 5
3 5
2 4 1
1 0 0
n o t r e q u i r e d
S 2 4 0 0 0
X M - 2 9 K
S h e e t a n d S t r i p
P l a t e
1 0 0
1 0 0
6 9 0
6 9 0
6 0
5 5
4 1 5
3 8 0
4 0 4 0
2 4 1
2 4 1
1 0 0
1 0 0
n o t r e q u i r e d
n o t r e q u i r e d
S 3 0 1 0 0
3 0 1
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 1 0 3
3 0 1 L F
8 0
5 5 0
3 2
2 2 0
4 5
2 4 1
1 0 0
n o t r e q u i r e d
S 3 0 1 5 3
3 0 1 L N F
8 0
5 5 0
3 5
2 4 0
4 5
2 4 1
1 0 0
n o t r e q u i r e d
S 3 0 2 0 0
3 0 2
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 0 4 0 0
3 0 4
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 0 4 0 3
3 0 4 L
7 0
4 8 5
2 5
1 7 0
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 0 4 0 9
3 0 4 H
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 0 4 1 5
. . .
8 7
6 0 0
4 2
2 9 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 4 5 1
3 0 4 N
8 0
5 5 0
3 5
2 4 0
3 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 4 5 2
X M - 2 1 K
S h e e t a n d S t r i p
P l a t e
9 0
8 5
6 2 0
5 8 5
5 0
4 0
3 4 5
2 7 5
3 0 3 0
2 4 1
2 4 1
1 0 0
1 0 0
n o t r e q u i r e d
n o t r e q u i r e d
S 3 0 4 5 3
3 0 4 L N
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 5 0 0
3 0 5
7 0
4 8 5
2 5
1 7 0
4 0
1 8 3
8 8
n o t r e q u i r e d
S 3 0 6 0 0
. . .
7 8
5 4 0
3 5
2 4 0
4 0
. . .
. . .
. . .
S 3 0 6 0 1
. . .
7 8
5 4 0
3 7
2 5 5
3 0
. . .
. . .
n o t r e q u i r e d
S 3 0 6 1 5
. . .
9 0
6 2 0
4 0
2 7 5
3 5
2 1 7
9 5
n o t r e q u i r e d
S 3 0 8 1 5
. . .
8 7
6 0 0
4 5
3 1 0
4 0
2 1 7
9 5
. . .
S 3 0 9 0 8
3 0 9 S
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 9 0 9
3 0 9 H F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 9 4 0
3 0 9 C b F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 0 9 4 1
3 0 9 H C b F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
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T A B L E
2
C o n t i n u e d
U N S D e s i g n a t i o n
T y p e A
T e n s i l e S t r e n g t h , m i n
Y i e l d S t r e n g t h , B m i n
E l o n g a
t i o n i n
2 i n . o r 5 0 m m ,
m i n ,
%
H a r d n e s s , m a x C
C o l d B e n d ° D
k s i
M P a
k s i
M P a
B r i n e l l
R o c k w e l l B
S 3 1 0 0 8
3 1 0 S
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 0 0 9
3 1 0 H F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 0 4 0
3 1 0 C b F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 0 4 1
3 1 0 H C b F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 0 5 0
3 1 0 M o L N
F
t #
0 . 2
5 i n .
8 4
5 8 0
3 9
2 7 0
2 5
2 1 7
9 5
n o t r e q u i r e d
t > 0 . 2
5 i n
.
7 8
5 4 0
3 7
2 5 5
2 5
2 1 7
9 5
n o t r e q u i r e d
S 3 1 0 6 0
. . .
8 7
6 0 0
4 1
2 8 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 2 5 4
S h e e t a n d S t r i p
1 0 0
6 9 0
4 5
3 1 0
3 5
2 2 3
9 6
n o t r e q u i r e d
P l a t e
9 5
6 5 5
4 5
3 1 0
3 5
2 2 3
9 6
n o t r e q u i r e d
S 3 1 2 6 6
. . .
1 0 9
7 5 0
6 1
4 2 0
3 5
. . .
. . .
n o t r e q u i r e d
S 3 1 2 7 7
. . .
1 1 2
7 7 0
5 2
3 6 0
4 0
. . .
. . .
n o t r e q u i r e d
S 3 1 6 0 0
3 1 6
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 0 3
3 1 6 L
7 0
4 8 5
2 5
1 7 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 0 9
3 1 6 H
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 3 5
3 1 6 T i F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 4 0
3 1 6 C b F
7 5
5 1 5
3 0
2 0 5
3 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 5 1
3 1 6 N
8 0
5 5 0
3 5
2 4 0
3 5
2 1 7
9 5
n o t r e q u i r e d
S 3 1 6 5 3
3 1 6 L N
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 7 0 0
3 1 7
7 5
5 1 5
3 0
2 0 5
3 5
2 1 7
9 5
n o t r e q u i r e d
S 3 1 7 0 3
3 1 7 L
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 7 2 5
3 1 7 L M F
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 1 7 2 6
3 1 7 L M N F
8 0
5 5 0
3 5
2 4 0
4 0
2 2 3
9 6
n o t r e q u i r e d
S 3 1 7 2 7
. . .
8 0
5 5 0
3 6
2 4 5
3 5
2 1 7
9 6
n o t r e q u i r e d
S 3 1 7 5 3
3 1 7 L N
8 0
5 5 0
3 5
2 4 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 2 0 5 0
. . .
9 8
6 7 5
4 8
3 3 0
4 0
2 5 0
. . .
n o t r e q u i r e d
S 3 2 0 5 3
. . .
9 3
6 4 0
4 3
2 9 5
4 0
2 1 7
9 6
n o t r e q u i r e d
S 3 2 1 0 0
3 2 1
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 2 1 0 9
3 2 1 H
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 2 6 1 5 L
. . .
8 0
5 5 0
3 2
2 2 0
2 5
. . .
. . .
n o t r e q u i r e d
S 3 2 6 5 4
. . .
1 0 9
7 5 0
6 2
4 3 0
4 0
2 5 0
. . .
n o t r e q u i r e d
S 3 3 2 2 8
. . .
7 3
5 0 0
2 7
1 8 5
3 0
2 1 7
9 5
n o t r e q u i r e d
S 3 3 4 0 0
3 3 4 F
7 0
4 8 5
2 5
1 7 0
3 0
. . .
9 2
n o t r e q u i r e d
S 3 4 5 6 5
. . .
1 1 5
7 9 5
6 0
4 1 5
3 5
2 4 1
1 0 0
n o t r e q u i r e d
S 3 4 7 0 0
3 4 7
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 4 7 0 9
3 4 7 H
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 4 8 0 0
3 4 8
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 4 8 0 9
3 4 8 H
7 5
5 1 5
3 0
2 0 5
4 0
2 0 1
9 2
n o t r e q u i r e d
S 3 5 0 4 5
. . .
7 0
4 8 5
2 5
1 7 0
3 5
. . .
. . .
n o t r e q u i r e d
S 3 5 1 3 5
S h e e t a n d S t r i p
. . .
8 0
5 5 0
3 0
2 0 5
3 0
. . .
. . .
n o t r e q u i r e d
P l a t e
. . .
7 5
5 1 5
3 0
2 0 5
3 0
. . .
. . .
n o t r e q u i r e d
S 3 5 3 1 5
. . .
9 4
6 5 0
3 9
2 7 0
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 8 1 0 0
X M - 1 5 K
7 5
5 1 5
3 0
2 0 5
4 0
2 1 7
9 5
n o t r e q u i r e d
S 3 8 8 1 5
. . .
7 8
5 4 0
3 7
2 5 5
3 0
. . .
. . .
n o t r e q u i r e d
D u p l e x ( A u s t e n i t i c - F e r r i t i c )
S 3 1 2 0 0
. . .
1 0 0
6 9 0
6 5
4 5 0
2 5
2 9 3
3 1 J
n o t r e q u i r e d
S 3 1 2 6 0
. . .
1 0 0
6 9 0
7 0
4 8 5
2 0
2 9 0
. . .
. . .
S 3 1 8 0 3
. . .
9 0
6 2 0
6 5
4 5 0
2 5
2 9 3
3 1 J
n o t r e q u i r e d
S 3 2 0 0 1
. . .
9 0
6 2 0
6 5
4 5 0
2 5
. . .
2 5 J
n o t r e q u i r e d
S 3 2 0 0 3
. . .
9 0
6 2 0
6 5
4 5 0
2 5
2 9 3
3 1 J
n o t r e q u i r e d
S 3 2 1 0 1
. . .
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T A B L E
2
C o n t i n u e d
U N S D e s i g n a t i o n
T y p e A
T e n s i l e S t r e n g t h , m i n
Y i e l d S t r e n g t h , B m i n
E l o n g a
t i o n i n
2 i n . o r 5 0 m m ,
m i n ,
%
H a r d n e s s , m a x C
C o l d B e n d ° D
k s i
M P a
k s i
M P a
B r i n e l l
R o c k w e l l B
t #
0 . 2
5 i n .
[ 6 . 4 m m ]
1 0 1
7 0 0
7 7
5 3 0
3 0
2 9 0
. . .
n o t r e q u i r e d
t > 0 . 2
5 i n
.
[ 6 . 4 m m ]
9 4
6 5 0
6 5
4 5 0
3 0
2 9 0
. . .
n o t r e q u i r e d
S 3 2 2 0 5
2 2 0 5 F
9 5
6 5 5
6 5
4 5 0
2 5
2 9 3
3 1 J
n o t r e q u i r e d
S 3 2 3 0 4
2 3 0 4 F
8 7
6 0 0
5 8
4 0 0
2 5
2 9 0
3 2 J
n o t r e q u i r e d
S 3 2 5 0 6
. . .
9 0
6 2 0
6 5
4 5 0
1 8
3 0 2
3 2 J
n o t r e q u i r e d
S 3 2 5 2 0
. . .
1 1 2
7 7 0
8 0
5 5 0
2 5
3 1 0
. . .
n o t r e q u i r e d
S 3 2 5 5 0
2 5 5 F
1 1 0
7 6 0
8 0
5 5 0
1 5
3 0 2
3 2 J
n o t r e q u i r e d
S 3 2 7 5 0
2 5 0 7 F
1 1 6
7 9 5
8 0
5 5 0
1 5
3 1 0
3 2 J
n o t r e q u i r e d
S 3 2 7 6 0
. . .
1 0 8
7 5 0
8 0
5 5 0
2 5
2 7 0
. . .
n o t r e q u i r e d
S 3 2 9 0 0
3 2 9
9 0
6 2 0
7 0
4 8 5
1 5
2 6 9
2 8 J
n o t r e q u i r e d
S 3 2 9 0 6
. . . t < 0 . 4
i n .
[ 1 . 0 m m ]
1 1 6
8 0 0
9 4
6 5 0
2 5 . 0
3 1 0
3 2 J
n o t r e q u i r e d
t $
0 . 4
i n .
[ 1 . 0 m m ]
1 0 9
7 5 0
8 0
5 5 0
2 5 . 0
3 1 0
3 2 J
n o t r e q u i r e d
S 3 2 9 5 0 M
. . .
1 0 0
6 9 0
7 0
4 8 5
1 5
2 9 3
3 2 J
n o t r e q u i r e d
S 3 2 9 7 4
. . .
1 1 6
8 0 0
8 0
5 5 0
1 5
3 1 0
3 2 J
n o t r e q u i r e d
F e r r i t i c o r M a r t e n s i t i c ( C h r o m i u m )
S 3 2 8 0 3
. . .
8 7
6 0 0
7 2
5 0 0
1 6
2 4 1
1 0 0
n o t r e q u i r e d
S 4 0 5 0 0
4 0 5
6 0
4 1 5
2 5
1 7 0
2 0
1 7 9
8 8
1 8 0
S 4 0 9 0 0 N
4 0 9 N
S 4 0 9 1 0
. . .
5 5
3 8 0
2 5
1 7 0
2 0
1 7 9
8 8
1 8 0
S 4 0 9 2 0
. . .
5 5
3 8 0
2 5
1 7 0
2 0
1 7 9
8 8
1 8 0
S 4 0 9 3 0
. . .
5 5
3 8 0
2 5
1 7 0
2 0
1 7 9
8 8
1 8 0
S 4 0 9 4 5
. . .
5 5
3 8 0
3 0
2 0 5
2 2
. . .
8 0
1 8 0
S 4 0 9 7 5
. . .
6 0
4 1 5
4 0
2 7 5
2 0
1 9 7
9 2
1 8 0
S 4 0 9 7 7
. . .
6 5
4 5 0
4 1
2 8 0
1 8
1 8 0
8 8
n o t r e q u i r e d
S 4 1 0 0 0
4 1 0
6 5
4 5 0
3 0
2 0 5
2 0
2 1 7
9 6
1 8 0
S 4 1 0 0 3
. . .
6 6
4 5 5
4 0
2 7 5
1 8
2 2 3
2 0 J
n o t r e q u i r e d
S 4 1 0 0 8
4 1 0 S
6 0
4 1 5
3 0
2 0 5
2 2
O
1 8 3
8 9
1 8 0
S 4 1 0 4 5
. . .
5 5
3 8 0
3 0
2 0 5
2 2
. . .
8 0
1 8 0
S 4 1 0 5 0
. . .
6 0
4 1 5
3 0
2 0 5
2 2
1 8 3
8 9
1 8 0
S 4 1 5 0 0
. . .
1 1 5
7 9 5
9 0
6 2 0
1 5
3 0 2
3 2 J
n o t r e q u i r e d
S 4 2 0 3 5
. . .
8 0
5 5 0
5 5
3 8 0
1 6
1 8 0
8 8
n o t r e q u i r e d
S 4 2 9 0 0
4 2 9 F
6 5
4 5 0
3 0
2 0 5
2 2
O
1 8 3
8 9
1 8 0
S 4 3 0 0 0
4 3 0
6 5
4 5 0
3 0
2 0 5
2 2
O
1 8 3
8 9
1 8 0
S 4 3 0 3 5
4 3 9
6 0
4 1 5
3 0
2 0 5
2 2
1 8 3
8 9
1 8 0
S 4 3 4 0 0
4 3 4
6 5
4 5 0
3 5
2 4 0
2 2
. . .
8 9
1 8 0
S 4 3 6 0 0
4 3 6
6 5
4 5 0
3 5
2 4 0
2 2
. . .
8 9
1 8 0
S 4 3 9 3 2
. . .
6 0
4 1 5
3 0
2 0 5
2 2
1 8 3
8 9
1 8 0
S 4 3 9 4 0
. . .
6 2
4 3 0
3 6
2 5 0
1 8
1 8 0
8 8
n o t r e q u i r e d
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T A B L E
2
C o n t i n u e d
U N S D e s i g n a t i o n
T y p e A
T e n s i l e S t r e n g t h , m i n
Y i e l d S t r e n g t h , B m i n
E l o n g a
t i o n i n
2 i n . o r 5 0 m m ,
m i n ,
%
H a r d n e s s , m a x C
C o l d B e n d ° D
k s i
M P a
k s i
M P a
B r i n e l l
R o c k w e l l B
S 4 4 4 0 0
. . .
6 0
4 1 5
4 0
2 7 5
2 0
2 1 7
9 6
1 8 0
S 4 4 5 0 0
. . .
6 2
4 2 7
3 0
2 0 5
2 2
. . .
8 3
1 8 0
S 4 4 6 2 6
X M - 3 3 K
6 8
4 7 0
4 5
3 1 0
2 0
2 1 7
9 6
1 8 0
S 4 4 6 2 7
X M - 2 7 K
6 5
4 5 0
4 0
2 7 5
2 2
1 8 7
9 0
1 8 0
S 4 4 6 3 5
. . .
9 0
6 2 0
7 5
5 1 5
2 0
2 6 9
2 8 J
1 8 0
S 4 4 6 6 0
. . .
8 5
5 8 5
6 5
4 5 0
1 8
2 4 1
1 0 0
1 8 0
S 4 4 7 0 0
. . .
8 0
5 5 0
6 0
4 1 5
2 0
2 2 3
2 0 J
1 8 0
S 4 4 7 3 5
. . .
8 0
5 5 0
6 0
4 1 5
1 8
2 5 5
2 5 J
1 8 0
S 4 4 8 0 0
. . .
8 0
5 5 0
6 0
4 1 5
2 0
2 2 3
2 0 J
1 8 0
S 4 6 8 0 0
. . .
6 0
4 1 5
3 0
2 0 5
2 2
. . .
9 0
1 8 0
A U n l e s s o t h e r w i s e i n d i c a t e d , a g r a d e d e s i g n a t i o n o r i g i n a l l y a s s i g n e d b y t h e A m e r i c a n I r o n a n d S t e e l I n s t i t u t e ( A I S I ) .
B Y i e l d s t r e n g t h s h a l l b e d e t e r m i n e d b y t h e o f f s e t m e t h o d a t 0 . 2
%
i n a c c o r d a n c e w i t h T e s t M e t h o d s a n d D e fi n i t i o n s A 3 7 0 .
U n l e s s o t h e r w i s e s p e c i fi e d ( s e e S p e c i fi c a t i o n A 4 8 0 / A 4 8 0 M ,
p a r a g r a p h 4 . 1 . 1
1 ,
O r d e r i n g
I n f o r m a t i o n ) , a n a l t e r n a t i v e m e t h o d o f d e
t e r m i n i n g y i e l d s t r e n g t h m a y b e b a s e d o n t o t a l e x t e n s i o n u n d e r l o a d o f 0 . 5
% .
C E i t h e r B r i n e l l o r R o c k w e l l B H a r d n e s
s i s p e r m i s s i b l e .
D B e n d t e s t s a r e n o t r e q u i r e d f o r c h r o m
i u m s t e e l s ( f e r r i t i c o r m a r t e n s i t i c ) t h i c k e r t h a n 1
i n .
[ 2 5 m m ] o r f o r a n y a u s t e n i t i c o r d u p l e x ( a u s t e
n i t i c - f e r r i t i c ) s t a i n l e s s s t e e l s r e g a r d l e s s o f t h i c k n e
s s .
E E l o n g a t i o n f o r t h i c k n e s s ,
l e s s t h a n 0 . 0
1 5 i n .
( 0 . 3
8 m m ) s h a l l b e 2 0 %
m i n i m u m ,
i n 1 i n .
( 2 5 . 4 m m ) .
F C o m m o n n a m e , n o t a t r a d e m a r k , w i d
e l y u s e d , n o t a s s o c i a t e d w i t h a n y o n e p r o d u c e r .
G Y i e l d s t r e n g t h r e q u i r e m e n t s s h a l l n o t a p p l y t o m a t e r i a l u n d e r 0 . 0
2 0 i n [ 0 . 5
0 m m ] i n t h i c k n e s s .
H N o t a p p l i c a b l e f o r t h i c k n e s s e s u n d e r
0 . 0
1 0 i n .
[ 0 . 2
5 m m ] .
I T y p e 2 0 1 i s g e n e r a l l y p r o d u c e d w i t h a c h e m i c a l c o m p o s i t i o n b a l a n c e d f o r r i c h s i d e ( T y
p e 2 0 1 - 1 ) o r l e a n s i d e ( T y p e 2 0 1 - 2 ) a u s t e n i t e s t a b i l i t y d e p e n d i n g o n t h e p r o p e r t i e s r e q u i r e d f o r s p e c i fi c a p p l i c a t i o n s .
J R o c k w e l l C s c a l e .
K N a m i n g s y s t e m d e v e l o p e d a n d a p p l i e d b y A S T M .
L F o r S 3 2 6 1 5 ,
t h e g r a i n s i z e a s d e t e r m
i n e d i n a c c o r d a n c e w i t h t h e T e s t M e t h o d s E 1 1 2 ,
C o m p a r i s o n M e t h o d ,
P l a t e I I , s h a l l b e N o .
3 o r fi n e r .
M
P r i o r t o S p e c i fi c a t i o n A 2 4 0 – 8 9 b , t h
e t e n s i l e v a l u e f o r S 3 2 9 5 0 w a s 9 0 k s i .
N S 4 0 9 0 0 ( T y p e 4 0 9 ) h a s b e e n r e p l a c e d b y S 4 0 9 1 0 ,
S 4 0 9 2 0 , a n d S 4 0 9 3 0 .
U n l e s s o t h e
r w i s e s p e c i fi e d i n t h e o r d e r i n g i n f o r m a t i o n , a n o r
d e r s p e c i f y i n g S 4 0 9 0 0 o r T y p e 4 0 9 s h a l l b e s a t i s
fi e d b y a n y o n e o f S 4 0 9 1 0 ,
S 4 0 9 2 0 , o r S 4 0 9 3 0 a t t h e o p t i o n o f t h e s
e l l e r . M a t e r i a l m e e t i n g t h e r e q u i r e m e n t s o f S 4 0 9 1 0 ,
S 4 0 9 2 0 , o r S 4 0 9 3 0 , m a y a t t h e o p t i o n o f t h e
m a n u f a c t u r e r b e c e r t i fi e d a s S 4 0 9 0 0 .
O M a t e r i a l 0 . 0
5 0 i n ( 1 . 2
7 m m ) a n d u n d
e r i n t h i c k n e s s s h a l l h a v e a m i n i m u m e l o n g a t i o n
o f 2 0 % .
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SUPPLEMENTARY REQUIREMENTS
A supplementary requirement shall apply only when specified in the purchase order.
S1. Charpy Impact Testing of Plate
S1.1 Charpy impact tests shall be conducted in accordance
with Test Methods and Definitions A 370.
S1.2 Number of Tests— One impact test (3 specimens) shall
be made from one plate per heat treatment lot in the final heat
treated condition.
S1.3 Orientation of Test Specimens— Unless specified as
transverse specimens (long axis of the specimen transverse to
the final rolling direction, root of the notch perpendicular to the
rolling face) on the purchase order, the orientation of the
specimens shall be longitudinal (long axis of the specimen
parallel to the final rolling direction, root of the notch perpen-
dicular to the rolling face). The manufacturer is permitted to
test transverse specimens provided that such tests meet the
acceptance criteria applicable to longitudinal specimens. Un-
less otherwise specified on the purchase order, the specimens
shall be taken so as to include the mid-thickness of the product.
S1.4 Test Temperature— The purchaser shall specify the
test temperature. The manufacturer is permitted to test speci-
mens at a temperature lower than that specified by the
purchaser, provided that such tests shall meet the acceptance
criteria applicable to specimens tested at the specified tempera-
ture (see Note ).
NOTE —Test Methods A 923, Method B, applicable to some duplex
(austenitic-ferritic) stainless steels as listed in Test Methods A 923, uses a
Charpy impact test for the purpose of determining the absence of
detrimental intermetallic phases. Method B specifies a test temperatureand acceptance criterion, expressed as impact energy, for each type of
steel covered. It may be economical for the Charpy impact tests performed
on duplex stainless steels covered in both Specification A 240 and Test
Methods A 923 to be performed at the lower of the temperatures specified
by this supplementary requirement and Test Methods A 923 Method B,
with measurement of both lateral expansion and impact energy.
S1.5 Acceptance Limit — Unless otherwise specified on the
purchase order, each of the three specimens tested shall show
a lateral expansion opposite the notch of not less than 0.015 in.
[0.38 mm].
S1.6 Records— The recorded results shall include the
specimen orientation, specimen size, test temperature, ab-
sorbed energy values (if required), and lateral expansion
opposite the notch.
S2. Materials for High-Temperature Service
S2.1 Unless an H grade has been ordered, this supplemen-
tary requirement shall be specified for ASME Code applica-
tions for service above 1000°F [540°C].
S2.2 The user is permitted to use an austenitic stainless
steel as the corresponding H grade when the material meets all
requirements of the H grade including chemistry, annealing
temperature, and grain size (see Section 6).
S2.3 The user is permitted to use an L grade austenitic
stainless steel for service above 1000°F [540°C], subject to the
applicable allowable stress table of the ASME Code, when the
material meets all requirements of this specification and the
grain size is ASTM No. 7 or coarser as determined in
accordance with Test Method E 112. The grain size shall bereported on a Certified Test Report.
SUMMARY OF CHANGES
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
04 issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved March 1, 2004.)
(1) Added S31727 to Tables 1 and 2.
(2) Added S32053 to Tables 1 and 2.
(3) Added S32506 to Tables 1 and 2.
(4) Added S39274 to Tables 1 and 2.
A 240/A 240M – 04a
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This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03c issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved Jan. 1, 2004.)
(1) Added new grade, UNS S31060, to Section 6 and Tables 1
and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03b issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved Sept. 10, 2003.)
(1) In Table 2, HBN and HRB for S20100, S30451, and
S30453 were reconciled with those in Specification A 666,
annealed condition.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03a issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved May 10, 2003.)
(1) Added new alloy UNS S31277 to Tables 1 and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03 issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved April 10, 2003.)
(1) Added UNS S32906 to Tables 1 and 2. (2) Added UNS S32101 to Tables 1 and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
02a issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved February 10, 2003.)
(1) Added a new duplex stainless steel (S32003) to Tables 1
and 2.
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A 240/A 240M – 04a
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