8/7/2019 al600 UNS N06600

1/4

Technical DataBLUE SHEETAllegheny Ludlum Corporation Pittsburgh, PA

Allegheny LudlumAL 600 (UNS Designation N 0 6600)

Nickel-Base Alloy

Data shown are typical, and should not be construed as maximum or minimum valuesfor specification or for final design. Data on any particular piece of material may vary from those shown herein.

GENERAL PROPERTIES Allegheny Ludlum AL 600 alloy (UNS DesignationN06600) is a nickel-chromium alloy designed for usefrom cryogenic to elevated temperatures in the rangeof 2000 F (1093 C). AL 600 alloy is non-magneticand readily weldable.

The alloy is used in a variety of corrosion resistingapplications. The high nickel content of the alloyprovides a level of resistance to reducing environ-ments, while the chromium content of the materialprovides resistance to weaker oxidizing environments.The high nickel content of the material providesexceptional resistance to chloride stress corrosion

cracking.

The forming properties of the AL 600 alloy are similar to those of stable austenitic stainless steels.

FORMS AND CONDITIONSAVAILABLEThe Allegheny Ludlum AL 600 alloy is furnished asplate, sheet, and strip. The alloy is supplied in theannealed conditions generally specified. Sheet andstrip can be provided in the various temper conditionsspecified. Plate can be supplied in the as rolled

condition.

SPECIFICATIONSThe following widely published specifications areapplicable to the AL 600 alloy.

Product SpecificationForm ASTM ASME AMS MIL

Plate, Sheet B168 SB168 5540 MIL-N-23228and Strip MIL-T-23227

Pipe and B167 SB167 5580Tubing B516 SB516

B517 SB517

Condenser B163 SB163Tubing

Rod, Bar and B166 SB166 5665 MIL-N-23229Forgings B564 SB564

Wire B166 SB166 5687

Trademark of Allegheny Ludlum Corporation

8/7/2019 al600 UNS N06600

2/4

8/7/2019 al600 UNS N06600

3/4

Technical Data BLUE SHEET

Data shown are typical, and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary fromthose shown herein.

3

MECHANICAL PROPERTIESRoom temperature mechanical properties of the

AL 600 alloy are shown below. The material is in theannealed condition.

Ultimate0.2% Offset Tensile

Yield Strength Strength Elongation

psi (MPa) psi (MPa) % in 2" (51 mm)

37,000 (255) 93,000 (640) 45

Short Time Elevated TemperatureTensile PropertiesThe following table illustrates the short time tensileproperties of the AL 600 alloy at temperatures above

room temperature. Low temperature properties areadded for comparison

Ultimate ElongationTest 0.2% Offset Tensile percent in

Temperature Yield Strength Strength 2" (51 mm)

F (C) psi (MPa) psi (MPa)

-110 (-79) 42,400 (292) 106,450 (734) 64600 (316) 31,000 (213) 90,500 (624) 46800 (427) 29,500 (203) 88,500 (610) 49

1000 (538) 28,500 (197) 84,000 (579) 471200 (649) 26,500 (183) 65,000 (448) 391400 (760) 17,000 (117) 27,500 (190) 461600 (871) 9,000 ( 62) 15,000 (103) 801800 (982) 4,000 ( 28) 7,500 ( 52) 118

IMPACT RESISTANCE AL 600 alloy shows excellent toughness even at sub-zero temperatures. The following are typical resultsfor standard size Charpy V-Notch impact specimensmachined from plate.

Testing Temp. Charpy Impact Strength, ft-lb (Joules)

F (C) Annealed As Hot Rolled Cold Rolled

-100 (-73) 180 (244) 180 (244) _

70 (21) 180 (244) 180 (244) 155 (156)1000 (538) 160 (217) 160 (217) _

CREEP AND STRESSRUPTURE PROPERTIESTypical stress rupture properties of AL 600 alloyare presented below in comparison to some other materials. The data indicate that the AL 600 alloy hasmodest load carrying ability in the temperature rangein which creep and stress rupture are design criteria.

TestingTemperature Alloy Stress, psi (MPa) to Produce Rupture in

F ( C) 10 hr 100 hr 1000 hr

304 _ 43,000 (297) 34,000 (234)1000 (538) 600 74,000 (510) 50,000 (345) 34,000 (234)

A-286 100,000 (690) 95,000 (655) 88,000 (607)

304 _ 23,000 (159) 16,000 (110)1200 (649) 600 34,000 (234) 23,000 (159) 14,500 (100)

800 40,000 (276) 32,000 (221) 21,000 (145)1350 (732) 600 20,000 (138) 13,500 ( 93) 9,200 ( 63)

A-286 49,000 (338) 35,000 (241) 21,000 (145)

COLD FORMING AL 600 alloy exhibits the excellent cold formingcharacteristics normally associated with chromium-nickel stainless steels. The high nickel contentprevents the austenite to martensite transformationwhich can occur when Types 301 or 304 stainlesssteels are cold formed. The alloy has a lower workhardening rate than Types 301 or 304 and can be

used in multiple draw forming operations whererelatively large amounts of deformation occur between anneals.

If a high temperature anneal is conducted on the AL 600 alloy to produce a relatively large grain sizefor elevated temperature properties, extensiveforming produces a visibly undulated surface calledorange peel. This surface characteristic is producedby the large grain size and is usually not considereddetrimental to the properties of the material.

8/7/2019 al600 UNS N06600

4/4

B143/ED4/298/SW Copyright, Allegheny Ludlum Corporation 1998 Printed in U.S.A.

AL 600 Nickel-Base AlloyVisit our Website at

www.alleghenyludlum.com

WELDINGThe AL 600 alloy can be joined by the standardresistance and fusion welding processes used for thestainless steels. A number of welding rods and wiresare commercially available for joining AL 600 alloy toitself and other materials. Since the alloy forms atightly adhering oxide, which can be removed onlyby grinding, inert gas shielding is desirable.

HEAT TREATMENTThe AL 600 alloy is not hardenable by heat treatment.The alloy can only be strengthened by cold working.

Annealing is conducted to soften the material after cold working operations. Softening begins at 1600 F(871 C) and can be conducted to about 2100 F(1149 C). At temperatures of 1800 F (982 C) or higher, grain growth will occur rapidly. However, veryshort time at 1900 F (1038 C) may be used to softenthe material without producing undue grain growth.Slow cooling or quenching produces approximatelythe same hardness in AL 600 alloy.Material Safety Data Sheers have been prepared for this product and will be madeavailable at or prior to the time of shipment

Data shown are typical and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary fromthose shown herein.