Project Description
FeNiCu Sealing Alloy
Alloy
S4J47A
Similar Grade
| GB | ГОСТ |
|---|---|
| S4J47A | 47НД |
Specification
ГОСТ 10994-1974, ГОСТ 14080-78
Product Forms
Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire
Chemical Composition, %
| Alloy | C | Mn | Si | P | S | Ni | Cu | Fe |
|---|---|---|---|---|---|---|---|---|
| S4J47A | ≤0.05 | ≤0.4 | ≤0.3 | ≤0.015 | ≤0.015 | 46-48 | 4.5-5.5 | Rest |
Average Linear Expansion Coefficient
| Alloy | Heat treatment for sample | Average linear expansion coefficient a/10-6.K-1 | Inflection point /℃ | ||
|---|---|---|---|---|---|
| S4J47A | Heating to temperature between 850~900℃ in a protective or vacuum atmosphere. Holding for 1hour, cooling to 400℃ at a rate less than 300℃ per hour, then air cooling | 20~300℃ | 20~400℃ | 20~400℃ | ≥420 |
| 9.2~10.1 | 9.3~9.9 | 9.8~10.4 | |||
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