Detalhes do produto
Lugar de origem: Xangai, China
Marca: TANKII
Certificação: ISO9001 SGS
Número do modelo: FeNi36
Termos do pagamento & do transporte
Quantidade de ordem mínima: 10kg
Preço: Negociável
Detalhes da embalagem: caixa de madeira
Tempo de entrega: 7-20 dias
Termos de pagamento: L/C, T/T, Western Union
Habilidade da fonte: 100 toneladas por mês
Modelo NÃO.: |
invar |
DO: |
0.2mm mínimos. |
Peso: |
0.015 mm |
Comprimento: |
0.2mm mínimos. |
Forma: |
tubo de bobina; Tubo capilar; tubo sem costura |
Superfície: |
Brilhante |
Amostra: |
pedido pequeno aceito |
Modelo NÃO.: |
invar |
DO: |
0.2mm mínimos. |
Peso: |
0.015 mm |
Comprimento: |
0.2mm mínimos. |
Forma: |
tubo de bobina; Tubo capilar; tubo sem costura |
Superfície: |
Brilhante |
Amostra: |
pedido pequeno aceito |
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 |
![]()