Shanghai Tankii Alloy Material Co.,Ltd
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 100 Tons per month |
| Delivery Time | 7-20 days |
| Packaging Details | Wooden Case |
| Model NO. | invar |
| OD | 0.2mm Min. |
| WT | 0.015mm |
| Length | 0.2mm Min. |
| shape | coil pipe; Capillary pipe;Seamless pipe |
| surface | bright |
| sample | accpted small order |
| Brand Name | TANKII |
| Model Number | FeNi36 |
| Certification | ISO9001 SGS |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 100 Tons per month |
| Delivery Time | 7-20 days | Packaging Details | Wooden Case |
| Model NO. | invar | OD | 0.2mm Min. |
| WT | 0.015mm | Length | 0.2mm Min. |
| shape | coil pipe; Capillary pipe;Seamless pipe | surface | bright |
| sample | accpted small order | Brand Name | TANKII |
| Model Number | FeNi36 | Certification | ISO9001 SGS |
| Place of Origin | Shanghai, China | ||
| High Light | Invar 36 alloy tube 20mm ，Iron Nickel alloy pipe 4j36 ，Invar 36 tube with warranty | ||
4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.
4J36 use oxyacetylene welding, electric arc welding, welding and other welding methods. Since the coefficient of expansion and chemical composition of the alloy is related should be avoided due to welding causes a change in the alloy composition, it is preferable to use Argon arc welding welding filler metals preferably contains 0.5% to 1.5% titanium, in order to reduce weld porosity and crack.
Normal composition%
| Ni | 35~37.0 | Fe | Bal. | Co | - | Si | ≤0.3 |
| Mo | - | Cu | - | Cr | - | Mn | 0.2~0.6 |
| C | ≤0.05 | P | ≤0.02 | S | ≤0.02 |
Coefficient of expansion
| θ/ºC | α1/10-6ºC-1 | θ/ºC | α1/10-6ºC-1 |
| 20~-60 | 1.8 | 20~250 | 3.6 |
| 20~-40 | 1.8 | 20~300 | 5.2 |
| 20~-20 | 1.6 | 20~350 | 6.5 |
| 20~-0 | 1.6 | 20~400 | 7.8 |
| 20~50 | 1.1 | 20~450 | 8.9 |
| 20~100 | 1.4 | 20~500 | 9.7 |
| 20~150 | 1.9 | 20~550 | 10.4 |
| 20~200 | 2.5 | 20~600 | 11.0 |
Typical Physical properties
| Density (g/cm3) | 8.1 |
| Electrical resistivity at 20ºC(OMmm2/m) | 0.78 |
| Temperature factor of resistivity(20ºC~200ºC)X10-6/ºC | 3.7~3.9 |
| Thermal conductivity, λ/ W/(m*ºC) | 11 |
| Curie point Tc/ ºC | 230 |
| Elastic Modulus, E/ Gpa | 144 |
DATASHEET FOR:STEEL GRADES:SPECIAL ALLOY:4J42
Chemical composition(mass fraction)(wt.%) of the 4J42
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Ni(%) | Co(%) | Al(%) | Fe(%) | |
| 0.05 | ≤0.30 | ≤0.80 | 0.020 | 0.020 | 41.5-42.5 | ≤0.1 | ≤0.1 | Bal | |
Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade4J42
MECHANICAL PROPERTIES
| Yield Rp0.2(MPa) |
Tensile Rm(MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
| 232 (≥) | 934 (≥) | 22 | 23 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 |
PHYSICAL PROPERTIES
| Temper (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
| 11 | - | - | 0.14 | - | |||
| 364 | 336 | - | 43.3 | 311 | - | ||
| 748 | - | 22 | 43.2 | 211 | 141 |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1981
Total Annual:
8000000-100000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb... Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb...
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