ISO 4957 Grade 56NiCrMoV7 soft annealed (+A)
ISO 4957 Grade 56NiCrMoV7 soft annealed (+A) introduction
Oil and air hardenable die steel for dies up to largest dimensions, shears for hot cutting, extruding tools, die holder.
Equivalent material: CSN 19663, ISO 55NiCrMoV2, UNI 56NiCrMoV7KU, PN WNLV, UNE F.520.B, MSZ NK2, DIN 55NiCrMoV7, DIN 1.2714, AFNOR 55NiCrMoV7, AFNOR 55NCDV7, BS 55NiCrMoV7, AISI L6, SAE L6, JIS SKT4, EN 55NiCrMoV7, EN 35CrMo8, EN 1.2714, ISO 55NiCrMoV7, GOST 5ChGNM, UNS T61206
ISO 4957 Grade 56NiCrMoV7 soft annealed (+A) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.84 g/cm³ |
ISO 4957 Grade 56NiCrMoV7 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 56NiCrMoV7 soft annealed (+A) chemical
| Property |
Value |
| Carbon |
Carbon of 0.5 - 0.6 % |
| Chromium |
Chromium of 1 - 1.2 % |
| Manganese |
Manganese of 0.65 - 0.95 % |
| Molybdenum |
Molybdenum of 0.45 - 0.55 % |
| 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 56NiCrMoV7 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 56NiCrMoV7 soft annealed (+A) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
- |
| - |
20.0 °C |
Elastic modulus of 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 192 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 184 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Tool And Machining Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 79 GPa |
Typical for Tool And Machining Steel |
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