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Copper Paste

▪Cop Paste series brazing temperature : 1095～1150℃Trade name JIS Atmosphere Applicable base metals

PS54-V2A PS54-V2A☆ BCu-1a Vacuum

Stainless steel High or low carbon steel

PS54-D、DL BCu-1a DXgas Carbon steel

PS54-A BCu-1a AXgas Stainless steel High or low carbon steel

PS54-R BCu-1a RXgas Carbon steel

PS54-H BCu-1a Hydrogen gas or Vacuum.Stainless steel High or low carbon steel

PS54-D2 BCu-1aHydrogen gas Stainless steel High or low carbon steel

DXgas Carbon steel

▪Standard package：◦1kg, 10kg, 20kg

by plastic containers◦250cc by syringes and others

Water-soluble binder is of use for Cop paste series. Viscosity of paste can be adjusted easily by addition of water.(see, Page26)

▪Mechanical properties of joints ▪Brazed parts

▪Features : ◦Condition of paste is stable for a long time. ◦Auto feeding is easier than that of preform filler metal.◦Viscosity of paste can be adjusted easily by addition of water. So quantitatively constant supply is possible

using a oiler, for instance.◦For any atmosphere, each binder is perfectly decomposed. Just choose a suitable paste for your atmosphere.◦Decomposition of binder is good, so no carbon is left when used at vacuum, hydrogen gas, DXgas etc.◦PS54-V2A☆ is focused on quality and workability particularly specified for having suspensibility, easy

coating and decomposition.

▪Advantage : ◦No need of complicated stock control of various short rods and rings for fitting works. ◦Instant adaptation for work change is possible, different from the case of using preform filler metals.◦Reliability of setting paste on the right position and high workability are obtained by specified fluidity and

by sharp stop of paste without dripping nor threading out of a nozzle.

Trade nameTensile strength

N/mm2

mild steel/mild steel

Shear strengthN/mm2

mild steel/mild steelPS54-V2A 466 296

PS54-D, DL 462 288

PS54-A 470 292

PS54-R 464 295

PS54-D2 470 293

Trade names meet JIS Z3262 : 1998

neis Cop Paste has a great achievement, widely used at motor vehicles and heat exchanger industry. You can chose suitable paste according to your furnace atmospheres. Cop Paste is effectively fed by a dispenser of automated equipment.

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Copper Alloys

Bronic 65

Bronic 66M

Bras 64

Bron68 (68FC)

▪Compositions and mechanical properties.

Trade neme JIS Major composition Solidus LiquidusTensil strength

N/mm2Hardness Hv

(work hardened)

Bronic65 BCuZn-6 49%Cu-11%Ni-Zn ≒920℃ ≒930℃ 485 (49.5kg/mm2) 136 (213)

Bronic66M ─ 45%Cu-2%Ni-Zn ≒860℃ ≒880℃ 388 (39.6kg/mm2) 189 (306)

Bras64 BCuZn-1 60%Cu-Zn ≒900℃ ≒905℃ 376 (38.4kg/mm2) 108

Bron68（68FC） BCuZn-2 60%Cu-1%Sn-Zn ≒890℃ ≒900℃ 429 (43.8kg/mm2) 125

▪Procedure :◦Use a reducing flame for brazing joints. Use a neutral flame or a reducing flame for overlaying.◦Use Flux F61B for Bronic, Flux F64 for Bras64, Flux F68 for Bron68.◦Bron68FC is coated by flux, so easy to work.

▪Size : ◦φ1.0～φ5.0mm, length 500 or 1000mm (depends on trade names)

▪Standard package : ◦10kg (Bron68FC is by 5kg）

Trade names meet JIS Z3262 : 1998

Bronic 66M is made on order.

▪Characteristics :◦Has work hardening, frictional wear resistance and high tensile strength.▪Use : ◦Ideal for overlaying mechine worn parts of steel, cast iron, copper and nickel

alloy.

▪Characteristics : ◦Has work hardening for especially excellent frictional wear resistant

overlaying.▪Use : ◦Overlaying shafts, pistons, sleeves, metal bearings,engine block, pump casings, and gear

wheels.

▪Characteristics : ◦Low dezincification, easy to work. Surface of brazed metal is flat and glossy.◦ Bron68 is naval brass. Has good corrosion resistance and good fluidity.▪Use : ◦Brazing steel, cast iron, copper and copper alloy.◦Brazing dissimilar metals; copper pipes to steel, copper pipes to flanges of

cast iron.

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