ASTM B169 Specification

Scope
Chemical Composition
Mechanical Properties (Inch-Pound)
Mechanical Properties (SI)

This specification2 establishes the requirements for Copper Alloy UNS Nos. C61300 and C61400 aluminum bronze sheet, strip, and rolled bar. 1.2 The products made to this specification are commonly used for drawing, forming, stamping, and bending applications and are not intended for electrical applications.

Chemical Composition

Element	Composition,%
	Copper Alloy UNS No.
	C61300^A	C61400
Copper (including silver)	remainder	remainder
Lead, max	0.01	0.01
Iron	2.0–3.0	1.5–3.5
Zinc, max	0.10	0.20
Aluminum	6.0–7.5	6.0–8.0
Manganese, max	0.20	1.0
Phosphorus, max	0.015	0.015
Silicon, max	0.10	...
Tin	0.20–0.50	...
Nickel (including cobalt), max	0.15	...

Note:

A. When the product is for subsequent welding applications and is so specified by the purchaser, chromium shall be 0.05 % max, cadmium 0.05 % max, zirconium 0.05 % max, and zinc 0.05 % max.

Mechanical Properties (Inch-Pound)

Copper Alloy UNS No.	Temper Designation^A		Thickness, in.	Width, in.	Tensile Strength min, ksi^B	Yield Strength at 0.5 % Extension Under Load, min, ksi^B	Yield Strength at 0.2 % Extension Under Load, min, ksi^B	Elongation in 2 in., min, %
Copper Alloy UNS No.	Standard	Former	Thickness, in.	Width, in.	Tensile Strength min, ksi^B	Yield Strength at 0.5 % Extension Under Load, min, ksi^B	Yield Strength at 0.2 % Extension Under Load, min, ksi^B	Elongation in 2 in., min, %
C61300	O25, O60, or M20	soft	1⁄2 and under	all widths	75	36	34	35
			Over 1⁄2 to 2, incl	all widths	72	32	30	35
			Over 2 to 5, incl	all widths	65	28	26	35
C61400	O25, O60, or M20	soft	1⁄2 and under	all widths	72	32	30	35
			Over 1⁄2 to 2, incl	all widths	70	30	28	35
			Over 2 to 5, incl	all widths	65	28	26	35

Note:

A. Standard designations defined in Classification B601. B ksi = 1000 psi.

Mechanical Properties (SI)

Copper Alloy UNS No.	Temper Designation^A		Thickness, in.	Width, in.	Tensile Strength min, MPa	Yield Strength at 0.5 % Extension Under Load, min, MPa	Yield Strength at 0.2 % Extension Under Load, min, MPa	Elongation in 2 in., min, %
Copper Alloy UNS No.	Standard	Former	Thickness, in.	Width, in.	Tensile Strength min, MPa	Yield Strength at 0.5 % Extension Under Load, min, MPa	Yield Strength at 0.2 % Extension Under Load, min, MPa	Elongation in 2 in., min, %
C61300	O25, O60, or M20	soft	12.0 and under	all widths	515	250	235	35
			Over 12.0 to 50.0, incl	all widths	495	220	205	35
			Over 50.0 to 140 incl	all widths	450	195	180	35
C61400	O25, O60, or M20	soft	12.0 and under	all widths	495	220	205	35
			Over 12.0 to 50.0, incl	all widths	485	205	195	35
			Over 50.0 to 140 incl	all widths	450	195	180	35

Note:

A. Standard designations defined in Classification B601.