- Other Metals & Metal Products[10]
- Nickel[10]
- Other Steel Products[3]
- Steel Round Bars[1]
- Steel Wire[2]
- Steel Sheets[2]
- Magnetic Materials[5]
- Contact Person : Mr. Jing David
- Company Name : Danyang City Kaixin Alloy Material Co., Ltd.
- Tel : 86-0511-86452561
- Fax : 86-0511-89884146
- Address : Jiangsu,Zhenjiang,Mazhuang Lvcheng Town Danyang Jiangsu
- Country/Region : China
- Zip : 212352
Super invar
Used On:Super invar are suitable for environmental temperrature,make dimensional precision parts for instrumentation.
Specification:Sheet/Plate,Bar/Rod, Wire/Coil,Tube/Pipe/Capillary
Supper Invar (Chemical Composition %)
(Steel No) | (Chemical Composition %) | ||||||||
C | P | S | Mn | Si | Ni | Co | Cu | Fe | |
≤ | |||||||||
4J32 (Super Invar) | 0.05 | 0.020 | 0.020 | 0.20~0.60 | 0.20 | 31.5~ 33.0 | 3.20~ 4.20 | 0.40~ 0.80 | balance |
The Average Linear Expansion Coefficient:
Alloy Grades | Specimen heat treatment system | The average linear expansion coefficienta,10-6/ oC | |
20-100 oC | 20-300 oC | ||
Supper invar | To heat the semi-finishend products samples to 840±10°C,hold for 1h,and quench in the water. Machine the samples to finished samples.And heat At 315±10°C for 1h,furnace or air cool. | ≤1.0 | ----- |
(The Average Linear Expansion Coefficient)
(Steel No) | a,10-6/ oC(The Average Linear Expansion Coefficient) | |||||
20-50 oC | 20-100 oC | 20-200 oC | 20-300 oC | 20-400 oC | 20-500 oC | |
4J32(Super Invar) | 0.7 | 0.8 | 1.4 | 4.3 | 7.2 | 9.3 |
Note: The data in the tables are just for reference.
Super invar
