Low Expansion Alloys
- SG
- Jiangsu
- 15-30days
- 1200 Kilogram/Kilograms per Month
Low Expansion Alloys is with low expansion coefficient,high plasticity and toughness.The component of nickel is high,so low expansion alloys is anti-corrosion and wear-resisting.
Low Expansion Alloys
1.Alloy:4J32、4J36、Nb-lnvar
2.Characteristics:Low expansion alloy is called superInvar.This kind alloy is characterized by low expansion coefficient. Fairly low linear expansion coefficient at the temperature between -60℃~+10O℃.
3.Applications:Low expansion alloy is applied to various stabilized size components of instruments in aerospace industry and others.
4.Chemical compositions(%)
Alloy | Mn | Cu | Ni | Co | Fe |
4J32 | 0.20~0.60 | 0.40~0.80 | 31.5~33.0 | 3.20~4.20 | rest |
4J36 | 0.20~0.60 | - | 35.0~37.0 | - | rest |
Nb-lnvar | 0.60 | Nb≤0.50 | 30.0~35.0 | 3.0~5.0 | rest |
Average linear expansion coefficient
Alloy
| Heat treatment for the samples | Average linear expansion coefficient a/10-6·K-1 | ||
20~100℃ | -40~20℃ | -20~20℃ | ||
4J32 | Heating the semi-finished samples up to(840±10)℃ , holding for one hour ,then water cooling.Machining the samples to the final dimensions,reheating to(315±10)℃ ,holding for 1 hour,then furnace/air cooling. | - | ≤1.0 | - |
4J36 | - | ≤1.5 | - | |
Nb-lnvar | ≤0.5 | ≤0.60 | ≤0.5 | |
5.Packaging & Delivery
Packaging Details:Standard export seaworthy package. Wooden case of customized.
Delivery: EMS, DHL, TNT, UPS, container shipping.
FAQ:
1. Do you provide free samples?
Yes, we could offer the sample for free charge.But clients should bear all the shipping costs. Meanwhile, custom-made sample is available.
2.How do you guarantee the quality?
We will track and monitor whole production process, as well as test to each process.Besides,we are willing to accept customer testing.
3. What's the minimum quantity customer can order?
If we have the size in stock, we can provide any quantity.
If we do not have in stock,generally,the minimum quantity depends on different products.Please contact with us to confirm.
4. What's our payment terms?
We can accept T/T and LC payment terms, it also depending on delivery and total amount.
5.What is the lead time?
Usually sample lead time is 5-7days after payment has been confirmed.
Normal order is 15-30days,it depends on customers' quantity.
6. What's our working time?
We will give you reply through email/phone Online chat tool within 24 hours.
Important Notice
All the information above is only for reference. We can adjust chemical composition, physical and mechanical properties according to customers’ requirements. The specific details need to consult the sales staff.
