1. Scope
1.1 This specification establishes requirements for copper-nickel-tin alloy strip in the following alloys:
| Nominal Composition Weight % |
| Copper Alloy UNS No. |
| Copper | Nickel | Tin |
| C72700 | 85 | 9 | 6 |
| C72900 | 77 | 15 | 8 |
| C72650 | 87.5 | 7.5 | 5 |
1.2 Units—The values stated in inch-pound units and the values stated in SI units in Table 5 are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units and are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B598 Practice for Determining Offset Yield Strength in Tension for Copper Alloys
B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast
B820 Test Method for Bend Test for Determining the Formability of Copper and Copper Alloy Strip
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E8 Test Methods for Tension Testing of Metallic Materials
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
E290 Test Methods for Bend Testing of Material for Ductility
E478 Test Methods for Chemical Analysis of Copper Alloys
Keywords
age hardening; copper-nickel-tin; spinodal; strip ; UNS C72650; UNS C72700; UNS C72900; Age-hardening alloys--specifications; Copper alloy plate/sheet/strip/rolled bar--specifications; Copper-nickel alloys--specifications; Copper-nickel-tin; Spinodal alloy strip; UNS C72650 (copper-nickel tin alloy); UNS C72700 (copper-nickel tin spinoidal alloy); UNS C72900 (copper-nickel tin spinodal alloy);
ICS Code
ICS Number Code 77.150.30 (Copper products)
DOI: 10.1520/B0740-02
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]
