Audited Supplier
5J1480
ASTM, GB, DIN
ISO
Galvanized
Cold Rolled
Stock
Electrical Appliances Product Temperature Control
Standard
Linear Temperature Can Reach 350 ºC
-70~370ºC
1.97
-20~150
0.16
8.58
8.28%
370
HUONA
Wooden Case or Cartons
Discuss
Shanghai
72269990
Product Description
5j1480 Thermal bimetal strip Ni22Cr3/Ni36 TB140/80 ASTM TM1
A bimetal or thermostatic metal is a sheet or strip of two or more composite materials having different coefficients of linear thermal expansion bonded by riveting, brazing or welding. The material with the larger coefficient of thermal expansion (CTE) is considered as the active component, and that of smaller CTE is the passive component. The active component usually has alloys containing iron, manganese, nickel, or chrome in varying amounts. Whereas on the passive side, invar is often chosen, an iron-nickel alloy containing 36% nickel. Some bimetals include a third layer of copper or nickel in between the active and passive sides in order to increase thermal conductivity and decrease the material's electrical resistivity.
Bimetals work with the propensity of metals to expand when heated, and contract when cooled. The resulting change of curvature, or bending, in response to temperature change, is a fundamental property of all thermostatic bimetals. In effect, the temperature change is converted into mechanical displacement. The behaviour of bimetals is predictable and repeatable. The components used for bimetals are selected for their temperature characteristics as well as their thermal conductivity, stability, strength, workability, and electrical properties.
Chemical composition
performance
A bimetal or thermostatic metal is a sheet or strip of two or more composite materials having different coefficients of linear thermal expansion bonded by riveting, brazing or welding. The material with the larger coefficient of thermal expansion (CTE) is considered as the active component, and that of smaller CTE is the passive component. The active component usually has alloys containing iron, manganese, nickel, or chrome in varying amounts. Whereas on the passive side, invar is often chosen, an iron-nickel alloy containing 36% nickel. Some bimetals include a third layer of copper or nickel in between the active and passive sides in order to increase thermal conductivity and decrease the material's electrical resistivity.
Bimetals work with the propensity of metals to expand when heated, and contract when cooled. The resulting change of curvature, or bending, in response to temperature change, is a fundamental property of all thermostatic bimetals. In effect, the temperature change is converted into mechanical displacement. The behaviour of bimetals is predictable and repeatable. The components used for bimetals are selected for their temperature characteristics as well as their thermal conductivity, stability, strength, workability, and electrical properties.
| shop sign | 5j1480 | |
| With brand | 5j18 | |
| Composite layer alloybrand | High expansion layer | Ni22Cr3 |
| middle layer | -------- | |
| Low expansion layer | Ni36 | |
Chemical composition
| shop sign | Ni | Cr | Fe | Co | Cu | Zn | Mn | Si | C | S | P |
| ≤ | |||||||||||
| Ni36 | 35.0~37.0 | - | allowance | - | - | - | ≤0.6 | ≤0.3 | 0.05 | 0.02 | 0.02 |
| Ni22Cr3 | 21.0~23.0 | 2.0~4.0 | allowance | - | - | - | 0.3~0.6 | 0.15~0.3 | 0.25~0.35 | 0.02 | 0.02 |
performance
| Than bending K(20~135ºC) | Temperature curvature F/(greenhouse ~ 130 ºC) | resistivity | Linear temperature / ºC | Allows the use of temperature / ºC | Density (g/cm after) | |||
| Nominal value | Allowable deviation | Standard values | Allowable deviation | |||||
| Level 1 | Level 2 | |||||||
| 14.3 | ±5% | ±7% | 26.2%±5% | 0.8 | ±5% | -20~180 | -70~350 | 8.2 |
| Modulus of elasticity E/GPa | Hardness (HV) | Tensile strength MPa | Allow stress MPa | ||
| High expansion layer | Low expansion layer | minimum | biggest | ||
| 147~177 | 270~340 | 200~255 | 785~883 | 196 | 343 |
