Invar 36 Low Expansion Alloy Round Bar - 36% Nickel Content, 490 N/mm² Tensile Strength for Scientific Instruments
Price:
Negotiation
MOQ:
Negotiation
Delivery Time:
25-30 days subject to the clients' requirement and quantity
Brand:
BLM-IV-1
Product Description
Invar 36 is a nickel-iron alloy containing 36% nickel with a thermal expansion rate approximately one-tenth that of carbon steel. This material maintains nearly constant dimensions across normal atmospheric temperatures and exhibits a low coefficient of expansion from cryogenic temperatures up to 500°F. The alloy also provides excellent strength and toughness at cryogenic temperatures and can be processed using standard methods similar to austenitic stainless steels.
Material Specifications
International Standards
| GB/T | UNS | AISI/ASTM | W.Nr |
|---|---|---|---|
| 4J36 | K93600 | Invar 36 | 1.3912 |
Chemical Composition
| Grade | Ni | Mo | Fe | C | Mn | Si | Co | Cr | S | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Invar 36 | 35-37% | ≤0.5% | Balance | ≤0.05% | 0.2-0.6% | ≤0.3% | ≤1% | ≤0.5% | ≤0.02% | ≤0.02% |
Mechanical Properties
| Grade | Tensile Strength (N/mm²) | Yield Strength (N/mm²) | Elongation (%) | Hardness |
|---|---|---|---|---|
| Invar 36 | 490 | 240 | 42 | HB≤200 |
Material Characteristics
Invar 36 is a specialized iron-nickel alloy with ultra-low thermal expansion characteristics. Precise control of carbon and manganese content is critical for optimal performance. The material features:
- Extremely low coefficient of thermal expansion between -250°C and 200°C
- Excellent toughness and plasticity
- Face-centered cubic lattice structure
- Corrosion resistance in dry air at room temperature
Industrial Applications
Invar 36 is ideal for applications requiring ultra-low thermal expansion:
- Liquefied gas production, storage, and transportation systems
- Temperature measurement and control instruments operating below 200°C
- Metal screw connector bushings and bimetal temperature controllers
- Film frameworks and shadow masks
- CRP components for aviation industry tooling
- Satellite and missile electronic control unit frameworks below -200°C
- Laser control device electromagnetic lens auxiliary tubes
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Company
BLOOM(suzhou) Materials Co.,Ltd
Location
B615, Future Fortune Building, No. 1 Wangxi Road, Zhangjiagang City, Jiangsu Province
Contact Person
Kara Liu