ISO 4957 Grade 55NiCrMoV6 soft annealed (+A)
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) introduction
Oil hardenable die steel with good toughness, high compression strength, full quench and temperable, tempering resistance and nitridability.
Application:
standard steel for forging die, shears for hot cutting, extruding tools
Equivalent material: GB 5CrNiMo, AFNOR 55NCVD7, BS BH225/5, GOST 5ChNM, ISO 55NiCrMoV2, JIS SKT4, PN WNL1, STAS 55VMoCrNi16, UNE F.520.S, MSZ NK, SAE L6, DIN 1.2713, BS BH224/5, AISI L6, EN 1.2713, GB/T 5CrNiMo, GB/T T20103, GB/T 5Cr06NiMo, ASTM Type L6, UNS T61206
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.84 g/cm³ |
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.05E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.15E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.21E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.27E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.44E-5 1/K |
- |
| Melting point |
- |
Melting point of 1370 - 1425 °C |
Typical for Tool And Machining Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 558 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 587 J/(kg·K) |
- |
| Thermal conductivity |
-100.0 °C |
Thermal conductivity of 31.9 W/(m·K) |
- |
| - |
20.0 °C |
Thermal conductivity of 37.6 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 39.3 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 40.1 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 39.6 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 38.4 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36.7 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34.8 W/(m·K) |
- |
| Thermal diffusivity |
-100.0 °C |
Thermal diffusivity of 10.9 mm²/s |
- |
| - |
20.0 °C |
Thermal diffusivity of 10.4 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 10.1 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 9.7 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.1 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.9 mm²/s |
- |
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) chemical
| Property |
Value |
| Carbon |
Carbon of 0.5 - 0.6 % |
| Chromium |
Chromium of 0.6 - 0.8 % |
| Manganese |
Manganese of 0.65 - 0.95 % |
| Molybdenum |
Molybdenum of 0.25 - 0.35 % |
| Nickel |
Nickel of 1.5 - 1.8 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.1 - 0.4 % |
| Sulfur |
Sulfur of 0.03 % |
| Vanadium |
Vanadium of 0.07 - 0.12 % |
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
-100.0 °C |
Electrical resistivity of 2.14E-7 Ω·m |
| - |
20.0 °C |
Electrical resistivity of 2.77E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.26E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.94E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.74E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.66E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.73E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.96E-7 Ω·m |
ISO 4957 Grade 55NiCrMoV6 soft annealed (+A) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
| - |
20.0 °C |
Elastic modulus of 207.18 - 212 GPa |
| - |
100.0 °C |
Elastic modulus of 203.16 - 207 GPa |
| - |
200.0 °C |
Elastic modulus of 196.52 - 199 GPa |
| - |
300.0 °C |
Elastic modulus of 188.95 - 192 GPa |
| - |
400.0 °C |
Elastic modulus of 180.61 - 184 GPa |
| - |
500.0 °C |
Elastic modulus of 170.87 - 175 GPa |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| - |
100.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
200.0 °C |
Poisson's ratio of 0.3 [-] |
| - |
300.0 °C |
Poisson's ratio of 0.3 [-] |
| - |
400.0 °C |
Poisson's ratio of 0.3 [-] |
| - |
500.0 °C |
Poisson's ratio of 0.31 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 80.8 GPa |
| - |
100.0 °C |
Shear modulus of 78.79 GPa |
| - |
200.0 °C |
Shear modulus of 75.86 GPa |
| - |
300.0 °C |
Shear modulus of 72.77 GPa |
| - |
400.0 °C |
Shear modulus of 69.37 GPa |
| - |
500.0 °C |
Shear modulus of 65.35 GPa |
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