EN 10270-1 Grade DM patented cold drawn
EN 10270-1 Grade DM patented cold drawn introduction
The patented cold drawn steel wire type DM (D-dynamic load
M-medium tensile strength) made of unalloyed steel is used for tension springs, compression springs or torsion springs for medium static load or rare dynamic load.
The wire will be delivered in rings (standard delivery type), coils or levelled bars. Different surface conditions by arrangement
if no arrangements where done, the condition is up to the producer. All surface types can be delivered with oiled surface. More information regarding surface conditions see EN 10270-1.
Equivalent material: ISO DM, GB DM, IS DM, JIS SWP-A, ASTM A228, DIN FederstahldrahtD, DIN DM, AFNOR DM, BS DM
EN 10270-1 Grade DM patented cold drawn general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10270-1 Grade DM patented cold drawn thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
Typical for High Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Max service temperature, long |
- |
Max service temperature, long of -15 - 80 °C |
- |
| Melting point |
- |
Melting point of 1289 - 1478 °C |
Typical for High Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 486 J/(kg·K) |
Typical for High Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 36 W/(m·K) |
Typical for High Carbon Steel |
EN 10270-1 Grade DM patented cold drawn chemical
| Property |
Value |
| Carbon |
Carbon of 0.45 - 1 % |
| Copper |
Copper of 0.12 % |
| Manganese |
Manganese of 0.5 - 1.2 % |
| Phosphorus |
Phosphorus of 0.02 % |
| Silicon |
Silicon of 0.1 - 0.3 % |
| Sulfur |
Sulfur of 0.025 % |
EN 10270-1 Grade DM patented cold drawn electrical
| Property |
Temperature |
Value |
Comment |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m |
Typical for Carbon Steel |
EN 10270-1 Grade DM patented cold drawn mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 206 GPa |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for High Carbon Steel |
| Reduction of area |
20.0 °C |
Reduction of area of 28 - 40 % |
- |
| Shear modulus |
20.0 °C |
Shear modulus of 81.5 GPa |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 1020 - 2650 MPa |
- |
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