Customization: | Available |
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Certification: | ISO, CCC, CE |
Surface: | Smooth |
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GB/T4357-89 carbon spring steel wire | ||||||
B group | C group | D group | ||||
Diameter/mm | Tensile strength/Mpa | Time of torsion>= | Tensile strength/Mpa | Time of torsion>= | Tensile strength/Mpa | Time of torsion>= |
0.3 | 2010-2400 | 20 | 2300-2700 | 20 | 2640-3040 | 18 |
0.5 | 1860-2260 | 20 | 2200-2600 | 20 | 2550-2940 | 18 |
0.6 | 1760-2160 | 20 | 2110-2500 | 20 | 2450-2840 | 18 |
0.8 | 1710-2060 | 20 | 2010-2400 | 20 | 2400-2840 | 18 |
1 | 1660-2010 | 20 | 1960-2300 | 20 | 2300-2690 | 18 |
1.4 | 1620-1910 | 20 | 1860-2210 | 20 | 2150-2450 | 18 |
1.6 | 1570-1860 | 20 | 1810-2160 | 20 | 2110-2400 | 18 |
2 | 1470-1760 | 20 | 1710-2010 | 20 | 1910-2200 | 18 |
2.5 | 1420-1710 | 15 | 1660-1960 | 15 | 1760-2060 | 13 |
3 | 1370-1670 | 15 | 1570-1860 | 15 | 1710-1960 | 13 |
3.5 | 1320-1620 | 12 | 1570-1810 | 12 | 1660-1910 | 8 |
4 | 1320-1620 | 12 | 1520-1760 | 12 | 1620-1860 | 8 |