EN 10277-3 Grade 11SMn37 cold drawn

EN 10277-3 Grade 11SMn37 cold drawn introduction

Free cutting steel 11SMn37 is unsuitable for heat-treatment and is preferred steel 11SMn30 for higher requirements to machinability and surface appearance due to its higher S-content. For lower machinability demands it replaces the Pb-alloyed steel 11SMn30. Increased cracking sensitivity has to be considered. Therefore limited application for bulk parts in car industry as well as in apparatus and equipment engineering. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).

Equivalent material: AFNOR S300, BS 240M07, ISO 12SMn35, UNI CF9SMn36, JIS SUM25, SS 1912-04, VSM 9SMn36, UNE F.2113-12SMn35, SAE 1215, DIN 9SMn36, ISO 11SMn37, ASTM A108 Grade 1215, UNS G12150, DIN 1.0736, DIN 11SMn37, AFNOR 11SMn37, BS 11SMn37, AISI 1215, JIS 12SMn35, EN 1.0736, ASTM 1215

EN 10277-3 Grade 11SMn37 cold drawn general

Property Temperature Value
Density 20.0 °C Density of 7.83 - 7.85 g/cm³

EN 10277-3 Grade 11SMn37 cold drawn 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 -100.0 °C Thermal conductivity of 37.6 W/(m·K) -
- 20.0 °C Thermal conductivity of 42.2 - 54.4 W/(m·K) -
- 100.0 °C Thermal conductivity of 43.2 W/(m·K) -
- 200.0 °C Thermal conductivity of 42.9 W/(m·K) -
- 300.0 °C Thermal conductivity of 41.2 W/(m·K) -
- 400.0 °C Thermal conductivity of 39.1 W/(m·K) -
- 500.0 °C Thermal conductivity of 36.6 W/(m·K) -
- 600.0 °C Thermal conductivity of 34.1 W/(m·K) -
Thermal diffusivity -100.0 °C Thermal diffusivity of 12.9 mm²/s -
- 20.0 °C Thermal diffusivity of 11.7 mm²/s -
- 100.0 °C Thermal diffusivity of 11.2 mm²/s -
- 200.0 °C Thermal diffusivity of 10.3 mm²/s -
- 300.0 °C Thermal diffusivity of 9.4 mm²/s -
- 400.0 °C Thermal diffusivity of 8.3 mm²/s -
- 500.0 °C Thermal diffusivity of 7.1 mm²/s -
- 600.0 °C Thermal diffusivity of 5.7 mm²/s -

EN 10277-3 Grade 11SMn37 cold drawn chemical

Property Value
Carbon Carbon of 0.14 %
Manganese Manganese of 1 - 1.5 %
Phosphorus Phosphorus of 0.11 %
Silicon Silicon of 0.05 %
Sulfur Sulfur of 0.34 - 0.4 %

EN 10277-3 Grade 11SMn37 cold drawn magnetic

Property Value Comment
Curie temperature Curie temperature of 770 °C Typical for Low Carbon Steel

EN 10277-3 Grade 11SMn37 cold drawn electrical

Property Temperature Value
Electrical resistivity -100.0 °C Electrical resistivity of 1.82E-7 Ω·m
- 20.0 °C Electrical resistivity of 1.1E-7 - 2.47E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.96E-7 Ω·m
- 200.0 °C Electrical resistivity of 3.68E-7 Ω·m
- 300.0 °C Electrical resistivity of 4.55E-7 Ω·m
- 400.0 °C Electrical resistivity of 5.56E-7 Ω·m
- 500.0 °C Electrical resistivity of 6.75E-7 Ω·m
- 600.0 °C Electrical resistivity of 8.13E-7 Ω·m

EN 10277-3 Grade 11SMn37 cold drawn mechanical

Property Temperature Value Comment
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 -
Elongation 20.0 °C Elongation of 6 - 9 % -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Low Carbon Steel
Shear modulus 20.0 °C Shear modulus of 81 GPa -
Tensile strength 20.0 °C Tensile strength of 360 - 810 MPa -
Yield strength Rp0.2 20.0 °C Yield strength Rp0.2 of 245 - 440 MPa -

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