DIN 17212 Grade Cf53 – Normalized Steel for Flash Welding & Machining
The in the quenched and tempered condition flame and induction hardenable unalloyed special steel has a, compared to the common quenched and tempered steel, constricted range of the C content and a lower maximum value of the P content. The steel is suitable for flash welding, if prooved conditions will be kept. For better machining the steel can be soft annealed. In this soft annealed and also in the normalised condition the material is unrestrained cold shearable. A maximum value for nonmetallic inclusions by arrangement. Delivery forms: - semi-finished product, rolled or forged - steel bars, hot-rolled or hot forged - wire, hot-rolled - sheet, strip and wide flats, hot-rolled - tubes, coils, seamless - open die and drop forgings Application: car industry, engine construction, mechanical engineering
Properties
General
| Property | Temperature | Value | Comment |
|---|---|---|---|
Density | 23.0 °C | 7.8 - 7.9 g/cm³ | Typical for Medium Carbon Steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 200 - 215 GPa | Typical for Medium Carbon Steel |
Elongation | 20.0 °C | 16 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Shear modulus | 23.0 °C | 75 - 80 GPa | Typical for Carbon Steel |
Tensile strength | 20.0 °C | 610 - 760 MPa | |
Yield strength | 20.0 °C | 340 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.32E-5 1/K | Typical for Medium Carbon Steel |
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1380 - 1514 °C | Typical for Medium Carbon Steel | |
Specific heat capacity | 23.0 °C | 470 - 520 J/(kg·K) | Typical for Medium Carbon Steel |
Thermal conductivity | 23.0 °C | 21 - 52 W/(m·K) | Typical for Medium 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 - 0.57 % |
Manganese | 0.4 - 0.7 % |
Phosphorus | 0.03 % |
Silicon | 0.15 - 0.35 % |
Sulfur | 0.035 % |
Metal
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