Germany · DIN
Ms63
DIN 17682:1966 — Round Spring Wires Made of Wrought Copper Alloys; Strength Properties; Technical Conditions of Delivery
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Al | 0.02 | |||
| Cu | 63.5 | 65 | ||
| Fe | 0.05 | |||
| Mn | 0.05 | |||
| Ni | 0.2 | |||
| Pb | 0.05 | |||
| Sb | 0.01 | |||
| Sn | 0.05 | |||
| Total Ni | 0.3 | |||
| Total oth. | 0.05 | |||
| Zn | Bal | Bal |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| Rounds, spring wires, Strain-hardened, 0.5 < t <= 2.0 mm | 680.00 | |||||
| Rounds, spring wires, Strain-hardened, 2.0 < t <= 5.0 mm | 637.00 | |||||
| Rounds, spring wires, Strain-hardened, t <= 0.5 mm | 735.00 |
Physical properties
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 8.40 |
Japan