ASTM B860-15
- Standard Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing
- standard by ASTM International, 10/01/2015
- Publisher: ASTM
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1.1 This specification covers zinc master alloys which are used in hot dip galvanizing for the purpose of adjusting the concentration of certain alloying elements in the molten zinc bath. Table 1 covers the chemical composition of these materials which include six master alloys of zinc-aluminum (brightener) and one master alloy of zinc-antimony.
|
| ASTM | Common |
| UNS |
|
| Type A-1 | 90/10 Zn/Al | High Purity | Z30750 |
|
| Type A-2 | 90/10 Zn/Al | Low Purity | Z31710 |
|
| Type A-3 | 95/5 Zn/Al | High Purity | Z30503 |
|
| Type A-4 | 95/5 Zn/Al | Low Purity | Z31510 |
|
| Type A-5 | 96/4 Zn/Al | High Purity | Z31520 |
|
| Type A-6 | 96/4 Zn/Al | Low Purity | Z30504 |
|
| Type S-1 | 90/10 Zn/Sb |
| Z55710 |
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