ISO 683-4 Grade 11SMn30 untreated
ISO 683-4 Grade 11SMn30 untreated introduction
Free-cutting steel 11SMn30 is not intended for heat-treatment and represents the standard grade for all bulk turned parts, also for parts of complicate machining of the complete cross-section (e.g. sparking plugs) and replaces a.o. steel 9SMn28 (DIN 1651 : 1988-04). Steel 11SMn30 is suitable for thin-walled parts and low cold forming.
Application in car industry as well as in equipment and apparatus engineering.
Equivalent material: AS 1214, GB Y15, GB U71152, EN 1.0715, IS 11C10S25, ISO 11SMn30, JIS SUM22, KS SUM22, SAE 1215, UNS G12150, DIN 9SMn28, AS S1214, AISI 1213, UNS G12130, DIN 1.0715, DIN 11SMn30, AFNOR S250, AFNOR 11SMn30, BS 230M07, BS 11SMN30, BS 220M07, UNI CF9SMn28, UNI 9SMn23, SS 1912, UNE 11SMn28, AISI 1215, SAE 1213, JIS 11SMn28, JIS SUM23, ISO 11SMn28, GB/T U71152, GB/T Y15
ISO 683-4 Grade 11SMn30 untreated general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
ISO 683-4 Grade 11SMn30 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 - 610 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 54.4 - 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 11SMn30 untreated chemical
| Property |
Value |
| Carbon |
Carbon of 0.14 % |
| Manganese |
Manganese of 0.9 - 1.3 % |
| Phosphorus |
Phosphorus of 0.11 % |
| Silicon |
Silicon of 0.05 % |
| Sulfur |
Sulfur of 0.27 - 0.33 % |
ISO 683-4 Grade 11SMn30 untreated magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
ISO 683-4 Grade 11SMn30 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 11SMn30 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 107 - 169 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| - |
25.0 °C |
Poisson's ratio of 0.28 - 0.29 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 81 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 360 - 570 MPa |
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