SAE 4820RH Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
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Steel Grades | Carbon Steel | SAE 4820RH | |||
SAE 3310RH |
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SAE 4027RH |
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SAE 4118RH |
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SAE 4120RH |
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SAE 4130RH |
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SAE 4140RH |
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SAE 4145RH |
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SAE 4161RH |
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SAE 4320RH |
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SAE 4620RH |
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Cr | Ni |
---|---|---|---|---|---|---|
0.18-0.23 | 0.15-0.35 | 0.5-0.7 | 0.025 | 0.04 | ≤0.2 | 3.25-3.75 |
Mo | Al | Cu | Nb | Ti | V | Ce |
0.2-0.3 | ≤ 0.35 | |||||
N | Co | Pb | B | Other | ||
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) |
---|---|---|---|---|---|---|
443 (≥) | 938 (≥) | 12 | 42 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 213 |
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 |
---|---|---|---|---|---|---|---|
23 | - | - | 0.11 | - | |||
749 | 329 | - | 32.3 | 434 | - | ||
267 | - | 22 | 21.2 | 332 | 234 |
Heat treated : 1182°C - 1268°C
Grade | Standard | Country | Application |
---|---|---|---|
SAE NVl(1541) | SAE | USA | precipitation hardening |
SAE NV2(1547) | SAE | USA | precipitation hardening |
SAE NV3 | SAE | USA | precipitation hardening |
SAE NV4(3140) | SAE | USA | precipitation hardening |
SAE NV5(8645) | SAE | USA | precipitation hardening |
SAE NV6(5150) | SAE | USA | precipitation hardening |
SAE NV7(4140) | SAE | USA | precipitation hardening |
SAE NV8 | USA | precipitation hardening | |
SAE NV9 | SAE | USA | precipitation hardening |
SAE HNVl | SAE | USA | precipitation hardening |
SAE HNV2 | SAE | USA | precipitation hardening |
SAE HNV3 | SAE | USA | precipitation hardening |
SAE HNV4 | SAE | USA | precipitation hardening |
SAE HNV5 | SAE | USA | precipitation hardening |
SAE HNV6 | SAE | USA | precipitation hardening |
SAE HNV7(71360) | SAE | USA | precipitation hardening |
SAE HNV8 | SAE | USA | precipitation hardening |
SAE EVl | SAE | USA | precipitation hardening |
SAE EV2 | SAE | USA | precipitation hardening |
SAE EV3 | SAE | USA | precipitation hardening |
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