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Precision alloys are metal materials with special physical properties (such as magnetic, electrical, thermal and other properties). The vast majority of precision alloys are based on ferrous metals, and only a few are based on non-ferrous metals. Usually include magnetic alloys, elastic alloys, expansion alloys, thermal bimetals, electrical alloys, hydrogen storage alloys, shape memory alloys, magnetostrictive alloys, etc.
Soft magnetic alloys are a class of alloys with high permeability and low coercivity in weak magnetic fields. Grades include: 1J06, 1J12, 1J17, 1J18, 1J22, 1J30, 1J36, 1J38, 1J46, 1J50, 1J51, 1J54, 1J76, 1J77, 1J79, 1J80, 1J85, 1J87.
Permanent magnet alloy has high hardness, mechanical properties, and strong anti-demagnetization ability. Grades include: 2J04, 2J07, 2J09, 2J10, 2J31, 2J53, 2J84, 2J85.
Elastic alloys include high elastic and constant elastic alloys for precision instruments. Grades include: 3J01, 3J21, 3J53.
Expansion alloys (Invar Alloy) are used in electronics and precision measuring tools. Grades include: 4J28, 4J29, 4J32, 4J33, 4J36, 4J40, 4J42, 4J50.
| Expansion Alloy Chemical Composition (%) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grade | C≤ | S≤ | P≤ | Mn | Si | Ni | Cr | Cu | Al | Fe |
| 6J10 | 0.05 | 0.01 | 0.01 | 0.3 | 0.2 | Ni+Co Rem | 9-10 | 0.2 | - | 0.4 |
| 6J15 | 0.05 | 0.02 | 0.03 | 1.5 | 0.4-1.3 | 55-61 | 15-18 | - | 0.3 | Rem |
| 6J20 | 0.05 | 0.01 | 0.01 | 0.7 | 0.4-1.3 | Rem | 20-23 | - | 0.3 | ≥1.5 |
| 6J22 | 0.04 | 0.01 | 0.01 | 0.5-1.5 | 0.2 | Rem | 19-21.5 | - | 2.7-3.2 | 2-3 |
| 6J23 | 0.04 | 0.01 | 0.01 | 0.5-1.5 | 0.2 | Rem | 19-21.5 | 2-3 | 2.7-3.2 | - |
| 6J24 | 0.04 | 0.01 | 0.01 | 1.0-3.0 | 0.9-1.5 | Rem | 19-21.5 | - | 2.7-3.2 | 0.5 |
| Constantan & Manganese Copper Alloy | ||||
|---|---|---|---|---|
| Type | Brand | Ni (%) | Mn (%) | Cu (%) |
| Constantan alloy | 6J40 | 39-41 | 1-2 | Rest |
| Manganese Copper Alloy | 6J12 | 2-3 | 11-13 | Rest |
Over the years, we have worked hard to promote and realize the modernization of alloy sales, and actively cultivated and enhanced the ability of employees' independent innovation. All-round renovation and upgrade of the original business site, facilities and equipment, and modern computer management.
We are increasing the scale of trade and customers throughout the world. With our good reputation we have won the trust of our customers. It helps the modernization of our industry and promotes the economic and technical exchanges with the rest of the world.
