ASTM B740-09
Standard Specification for Copper-Nickel-Tin Spinodal Alloy Strip
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1. Scope
1.1 This specification establishes requirements for copper-nickel-tin alloy strip in the following alloys:
| Copper Alloy UNS No. | Nominal Composition Weight % | ||
| 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, except for grain size which is stated in metric units only. The values given in parentheses are mathematical conversions to SI units and are provided for information only and are not considered standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.
1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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/E8M 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
ICS Code
ICS Number Code 77.150.30 (Copper products)
UNSPSC Code
UNSPSC Code 30262400(Copper ingots strip billets and coil)
Referencing This Standard
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DOI: 10.1520/B0740-09
Citation Format
ASTM B740-09, Standard Specification for Copper-Nickel-Tin Spinodal Alloy Strip, ASTM International, West Conshohocken, PA, 2009, www.astm.org
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