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cold drawn spring steel wire:
hard drawn wire is drawn by the 72A,82B high carbon steel wire.
As the Black Iron Wire has the super hardness, it is mainly used in making of wire
mesh,hangers and nails, fencing and weled wire mesh panels etc.
Material | Norminal Diameter | Tolence(mm) | Tensile strength (Mpa) | Twist Frequence | ||
B | C | D | ||||
Medium Carbon steel and high carbon steel(cold drawn) | 0.2-0.3 | ±0.008 | 2010-2550 | 2300-2790 | 2640-3090 | 20 |
0.32-0.4 | ±0.008 | 1910-2350 | 2250-2650 | 2600-2990 | ||
0.45-0.60 | ±0.010 | 1760-2260 | 2110-2600 | 2450-2940 | ||
0.65-0.80 | ±0.010 | 1710-2160 | 2010-2500 | 2400-2840 | ||
0.90-1.40 | ±0.010 | 1620-2060 | 1860-2350 | 2150-2750 | ||
1.60-2.50 | ±0.010 | 1420-1860 | 1660-2160 | 1760-2400 | ||
2.80-3.20 | ±0.015 | 1320-1670 | 1570-1910 | 1660-2010 | ||
3.50-4.0 | ±0.015 | 1320-1620 | 1520-1810 | 1620-1910 | ||
0.1mm-4.0mm cold drawn spring steel wire