ISO 683-4 Grade 10S20 untreated
ISO 683-4 Grade 10S20 untreated introduction
Free-cutting steel 10S20, suitable for case-hardening, shows considerably uniformer properties of the cross-section and within the melt than older semi-killed free cutting steels. Compared to 15 S 10 (DIN 1651: 1988-04) shows 10S20 a slightly enhanced machinability at relatively favorable ductility properties.
Application for thin-walled case hardened parts in car industry, in apparatus, equipment and machine engineering.
Equivalent material: GB Y12, GB U71122, EN 1.0721, IS 10C8S10, ISO 10S20, JIS SUM12, KS SUM12, GOST A12, SAE 1108, UNS G11080, SAE 1109, UNS G11090, ISO 10C8S10, DIN 1.0721, DIN 10S20, AFNOR 10S20, AFNOR 10F2, BS 10S20, AISI 1108, AISI 1111, AISI 1109, AISI B1111, SAE 1111, SAE B1111, JIS 10S20, EN 9S20, ISO 10520, GB/T U71122, GB/T Y12
ISO 683-4 Grade 10S20 untreated general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
ISO 683-4 Grade 10S20 untreated thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.1E-5 - 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.18E-5 - 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.32E-5 - 1.41E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.49E-5 1/K |
- |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 460 - 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 - 480 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 - 520 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 - 600 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 |
20.0 °C |
Thermal conductivity of 52.4 - 57.5 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 55.7 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 51.9 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 47.6 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 43.4 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 39.6 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 36 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 15.9 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 14.3 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 12.5 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 10.8 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.6 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 6.1 mm²/s |
- |
ISO 683-4 Grade 10S20 untreated chemical
| Property |
Value |
| Carbon |
Carbon of 0.07 - 0.13 % |
| Manganese |
Manganese of 0.7 - 1.1 % |
| Phosphorus |
Phosphorus of 0.06 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.15 - 0.25 % |
ISO 683-4 Grade 10S20 untreated magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
ISO 683-4 Grade 10S20 untreated electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.1E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.3E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.04E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 3.94E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.01E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.25E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.7E-7 Ω·m |
ISO 683-4 Grade 10S20 untreated mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
| - |
20.0 °C |
Elastic modulus of 210 - 212 GPa |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
| - |
200.0 °C |
Elastic modulus of 193 - 199 GPa |
| - |
300.0 °C |
Elastic modulus of 185 - 192 GPa |
| - |
400.0 °C |
Elastic modulus of 175 - 184 GPa |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 105 - 156 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 81 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 350 - 530 MPa |
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