Russia ГОСТ Р9М4К8 Carbide for cutting tools and Р9М4К8 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Tool Steel And Hard Alloy | Р9М4К8 | ГОСТ | Russia | Carbide for cutting tools | 
| Р6АМ5 | |||||
| Р6М5 | |||||
| Р6М5 | |||||
| Р6М5Ф3 | |||||
| Р6М5Ф3 | |||||
| Р6М5К5 | |||||
| Р6М5К5 | |||||
| Р9К5 | |||||
| Р9К5 | |||||
| Р9М4К8 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | V(%) | W(%) | Cu(%) | Co(%) | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.00-1.10 | 0.20-0.50 | 0.20-0.50 | ≤0.030 | ≤0.030 | 7.50-8.50 | 2.30-2.70 | 3.80-4.30 | 2.30-2.70 | 2.30-2.70 | ≤0.25 | 7.50-8.50 | 
| 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) | 
|---|---|---|---|---|---|---|
| 688 (≥) | 529 (≥) | 33 | 41 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 412 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.41 | - | |||
| 233 | 993 | - | 44.3 | 433 | - | ||
| 263 | - | 14 | 32.2 | 123 | 424 | 
Heat treated : 1923°C - 1436°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| Р9М4К8 | ГОСТ | Russia | Carbide for cutting tools | 
| Р9М4К8 | ГОСТ | Russia | Carbide for cutting tools | 
Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...
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