Standard Specification for Copper-Silicon Alloy Wire for General Applications

Scope:-

1.1 This specification establishes the requirements for round, rectangular, and square wire for general applications other than for electrical transmission cable. The alloys involved are UNS No. C65100 and UNS No. C65500

Chemical Requirements

	Composition,% max
	Copper Alloy UNS No.
	C65100	C65500
Copper (incl silver)	remainder	remainder
Lead	0.05	0.05
Iron	0.8	0.8
Zinc	1.5	1.5
Manganese	0.7	0.50–1.3
Silicon	0.8–2.0	2.8–3.8
Nickel	...	0.6

Chemical Composition

5.1 The material composition shall conform to the requirements of Table 1 for the Copper Alloy UNS No. specified in the ordering information.
5.1.1 These compositional limits do not preclude the presence of other elements. When required, limits may be established and analysis required for unnamed elements by agreement between the supplier and the purchaser.
5.2 Copper listed as the remainder is the difference between the sum of results for all elements determined and 100 %.
5.3 When all elements listed in Table 1 for the Copper Alloy UNS No. prescribed in the ordering information are determined, the sum of results shall be 99.5 % min

Test Methods

10.1 Chemical Analysis:
10.1.1 Material composition shall, in case of dispute, be determined as follows :-

Chemical Requirements

Element	Test Methods
Copper	E 478
Phosphorus	E 62
Lead	E 478 (AA)
Iron	E 478
Zinc	E 478 (Titrametric)
Tin	E 478

10.1.2 Test method(s) to be followed for the determination of elements required by contractual or purchase order agreement shall be as agreed upon between the supplier and the purchaser

Mechanical Property Requirements

Tensile Requirements:
The product of the Copper Alloy UNS No. specified in the ordering information shall conform to the requirements of Table 2 for the prescribed temper.
Grain Size Requirements

Mechanical Requirements

Temper		Tensile Strength		Elongation in 2 in. [50 mm] min% , for Wire Over 1⁄2 in
Standard	Name	ksi	[MPa]	[12.0 mm] in Diameter
O61	annealed	38–55	[260–380]	40
H00	eighth-hard	50–65	[345–450]	20
H01	quarter-hard	60–75	[415–515]	15
H02	half-hard	75–95	[515–655]	10
H04	hard^A	90–110	[620–760]	8
H08	spring^B	100 min	[690 min]	6
Copper Alloy UNS No. C65100
O61	annealed	55–70	[380–485]	47
H00	eighth-hard	62–78	[425–540]	28
H01	quarter-hard	72–90	[495–620]	18
H02	half-hard	90–110	[620–760]	10
H04	hard^A	115–135	[790–930]	6
H08	spring^B	130 min	[900 min]	4

^AHard (H04) temper is not generally available in sizes over 1⁄2 in. [12.0 mm].
^BSpring (H08) temper is not generally available in sizes over 1⁄4 in. [6.0 mm].

Performance Requirements:-

Bending Requirements:- Wire in sizes up to 0.250 in. [6 mm] inclusive produced to this specification shall be capable of being bent or wrapped one full turn (360°) around its own diameter, or distance between parallel faces, without developing cracks or other flaws visible to the unaided eye on the outside surface of the bend.
NOTE 1 — Test specimens that include brazed or welded areas shall not be used for bend test purposes.

Ordering Information:-

Contracts or purchase orders for product to this specification should include the following information: ASTM designation and year of issue,
Copper Alloy UNS No.
This specification is under the jurisdiction of ASTM Committee B-5 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Wire and Wire Rod.

Referenced Documents:-

ASTM Standards:
B 250 Specification for General Requirements for Wrought Copper-Alloy Wire2.
B 250M Specification for General Requirements for Wrought Copper-Alloy Wire [Metric]2.
B 601 Practice for Temper Designations for Copper and Copper-Alloys—Wrought and Cast2.
B 846 Terminology for Copper and Copper Alloys2.
E 62 Test Methods for Chemical Analysis of Copper and Copper-Alloys (Photometric Methods)3.
E 478 Test Methods for Chemical Analysis of Copper Alloys3.