EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC)

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) introduction

The cold-upsettable steel Cq 15 is suitable for the manufacture of screws, nuts and small parts (valve spring plates, bearing sleeves) used in automobile, motor and equipment construction and in general engineering. For lower requirements and smaller sections, carbon steel is sufficient
if the requirements for strength increase and for larger dimensions, alloyed steel of sufficient hardenability must be used.

Equivalent material: GB ML15, ISO B2, JIS SWRCH15K, DIN C15E2C, DIN 1.1132, AFNOR FR15, AFNOR C15E2C, BS C15E2C, AISI 1015, SAE 1015, JIS SWCH15K, EN C15E2C, EN 1.1132, GB/T ML18, GB/T U40182, GB/T ML15, GB/T U40152, ASTM M1015, UNS G10150

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) general

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

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) 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 1.25E-5 1/K -
- 200.0 °C Coefficient of thermal expansion of 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 1.41E-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 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 20.0 °C Thermal conductivity of 56.9 W/(m·K) -
- 100.0 °C Thermal conductivity of 56.4 W/(m·K) -
- 200.0 °C Thermal conductivity of 53.5 W/(m·K) -
- 300.0 °C Thermal conductivity of 49.4 W/(m·K) -
- 400.0 °C Thermal conductivity of 45.2 W/(m·K) -
- 500.0 °C Thermal conductivity of 41.3 W/(m·K) -
- 600.0 °C Thermal conductivity of 37.6 W/(m·K) -
Thermal diffusivity 20.0 °C Thermal diffusivity of 15.7 mm²/s -
- 100.0 °C Thermal diffusivity of 14.5 mm²/s -
- 200.0 °C Thermal diffusivity of 12.9 mm²/s -
- 300.0 °C Thermal diffusivity of 11.2 mm²/s -
- 400.0 °C Thermal diffusivity of 9.6 mm²/s -
- 500.0 °C Thermal diffusivity of 7.9 mm²/s -
- 600.0 °C Thermal diffusivity of 6.3 mm²/s -

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) chemical

Property Value
Carbon Carbon of 0.12 - 0.18 %
Manganese Manganese of 0.3 - 0.6 %
Phosphorus Phosphorus of 0.04 %
Silicon Silicon of 0.4 %
Sulfur Sulfur of 0.035 %

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) magnetic

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

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) electrical

Property Temperature Value
Electrical resistivity 20.0 °C Electrical resistivity of 1.83E-7 Ω·m
- 100.0 °C Electrical resistivity of 2.27E-7 Ω·m
- 200.0 °C Electrical resistivity of 2.95E-7 Ω·m
- 300.0 °C Electrical resistivity of 3.8E-7 Ω·m
- 400.0 °C Electrical resistivity of 4.81E-7 Ω·m
- 500.0 °C Electrical resistivity of 5.99E-7 Ω·m
- 600.0 °C Electrical resistivity of 7.38E-7 Ω·m

EN 10263-3 Grade Cq15 annealed to achieve spheroidized carbides (+AC) 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 20.0 °C Poisson's ratio of 0.28 [-] -
Reduction of area 20.0 °C Reduction of area of 65 % -
Shear modulus 23.0 °C Shear modulus of 82 GPa Typical for Low Carbon Steel
Tensile strength 20.0 °C Tensile strength of 470 MPa -

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