24 July 2021 Mould Steel Bar
DIN 1.2316 Mould Steel Bar
1.2316 is an excellent chemical resistant plastic mold steel. It has excellent corrosion resistance, excellent wear resistance and toughness, good thermal fatigue resistance, uniform material hardness, superior polishing performance, very high surface accuracy after polishing, low impurity content, and stable production time.
1.2316 is a chrome-molybdenum steel with improved corrosion resistance properties, 1.2316 possesses good polishability, toughness, heat resistance and wear-resistant properties. It is often used for tools for processing chemically aggressive plastic materials (e.g. PVC).
1.2316 is a martensitic stainless chromium steel with uniform hardness in all dimensions, it is easy to machine, high surface finish and polishability. 1.2316 is commonly used for plastic moulds, and offers a higher corrosion resistance than 1.2083 . It can be used with for the manufacturing of chemically aggressive materials like PVC and plastics containing abrasive fillers.
Chemical Composition:
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) |
|---|---|---|---|---|---|---|---|
| 0.33～0.43 | ≤1.00 | ≤1.00 | ≤0.030 | ≤0.030 | 15.0～17.0 | ≤1.00 | 1.00～1.30 |
Mechanical Propoerties:
| 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) |
|---|---|---|---|---|---|---|
| 447 (≥) | 571 (≥) | 31 | 33 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
Physical Properties:
| Temperature (°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 |
|---|---|---|---|---|---|---|---|
| 24 | - | - | 0.24 | - | |||
| 196 | 871 | - | 43.3 | 332 | - | ||
| 285 | - | 44 | 34.2 | 442 | 314 |