EN 10139 Grade St4 cold rolled, annealed
EN 10139 Grade St4 cold rolled, annealed introduction
The soft non-alloy steel St4 is suited for cold forming and is offered in different conditions (K to K60) with different strength and depth indications.
The steel is applicated in the plant and tool engineering.
Free from stretcher lines for 4 weeks is garuanteed in the LG and K32 condition. No stretcher lines occur in the conditions K40 to K60.
The steel is weldable, in the conditions K32 to K60 the strength can be decreased post welding.
Equivalent material: CSN 11301, AFNOR ES, BS CR1, GOST 08Fkp-sw, GOST 08Ju-sw, ISO CR4, UNI FePO3, JIS SPCEN, ÖNORM StO4F, PN B, SS SIS1146, ASTM A620, DIN 1.0338, DIN St 14, DIN St14, DIN DC04, AFNOR DC04, BS 1CR, BS 1CS, BS 1HR, BS 1HS, BS DC04, UNI FeP04, UNE AP04, JIS SPCE, JIS SPCF, EN DC04, EN FeP04, EN DC04, EN 1.0338, ISO CR3, ISO CR24, GOST 08JuA, GB/T 08F, GB/T U20080
EN 10139 Grade St4 cold rolled, annealed general
| Property |
Temperature |
Value |
Comment |
| Density |
20.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Low Carbon Steel |
EN 10139 Grade St4 cold rolled, annealed thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °C |
Coefficient of thermal expansion of 1.32E-5 - 1.38E-5 1/K |
Typical for Low Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
EN 10139 Grade St4 cold rolled, annealed chemical
| Property |
Value |
| Carbon |
Carbon of 0.08 % |
EN 10139 Grade St4 cold rolled, annealed electrical
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10139 Grade St4 cold rolled, annealed mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Low Carbon Steel |
| Elongation |
20.0 °C |
Elongation of 40 % |
- |
| Elongation A80 |
20.0 °C |
Elongation A80 of 38 % |
- |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 270 - 350 MPa |
- |
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