EN 10277-2 Grade ZSt70-2 – Cold Drawn/Turned, Soft‑Annealed High‑Carbon Steel
ZSt 70-2 is a bright drawn steel grade for wear and strength loaded parts (bolts, shafts, spindles, springs).
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.8 - 7.9 g/cm³ | Typical for High Carbon Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 200 - 215 GPa | Typical for High Carbon Steel |
Elongation | 20.0 °C | 9 - 11 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for High Carbon Steel |
Shear modulus | 23.0 °C | 81 GPa | Typical for High Carbon Steel |
Tensile strength | 20.0 °C | 810 - 830 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.32E-5 1/K | Typical for High Carbon Steel |
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1289 - 1478 °C | Typical for High Carbon Steel | |
Specific heat capacity | 23.0 °C | 486 J/(kg·K) | Typical for High Carbon Steel |
Thermal conductivity | 23.0 °C | 36 W/(m·K) | Typical for High Carbon Steel |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical resistivity | 23.0 °C | 1.43E-7 - 1.74E-7 Ω·m | Typical for Carbon Steel |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.5 % |
Phosphorus | 0.05 % |
Sulfur | 0.05 % |
Metal
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