Hard Drawn Steel
HDS Wire
Hard Drawn Steel Wire
Hard drawn steel wire refer to produced using high-quality hard steel wire have excellent straightness and are excellent with no flatness, line chafing and waves. In particular, Drawing machine and heat treatment facilities that determine the quality of the product are provided to meet the customer’s needs.
Usage
| Type | Carbon content | Usage |
|---|---|---|
| Hard steel wire for spring | 0.40 ~ 0.50% | Bicycle wheels, Mass-produced iron bars, Percussion nets, Rolling, Bolts, Tuning pins, Hair pins |
| 0.50 ~ 0.65% | Rolling, Hair pins, Washer, Out cashing, Zigzag spring, Tool, Screen mesh, Nets | |
| 0.65 ~ 0.86% | Tensile spring, Compression spring, Torsional spring, Aluminium ducts, Bed spring, Bearing, Laundry tongs, Concrete nail, Chain pins |
Type and Wire Diameter
| Type | Symbol | Diameter | Remarks |
|---|---|---|---|
| Hard steel wire A | SW-A | 0.32 ~ 10.0mm | |
| Hard steel wire B | SW-B | 0.32 ~ 10.0mm | Spring mainly subjected to a fixed load |
| Hard steel wire C | SW-C |
Tensile Strength / Ovality / Diameter tolerance / Surface
|
Diameter (mm) |
Tensile strength | SW-A,B,C | |||||
|---|---|---|---|---|---|---|---|
| SW-A (N/㎟) | SW-B (N/㎟) | SW-C (N/㎟) | High Strength Wire (N/㎟) | Diameter (mm) | Ovality mm(Max) | Surface | |
| 0.50 | 1.620 ~ 1.910 | 2.210 | 2.210 ~ 2.500 | 2.500 ~ 2.740 | ±0.015 | 0.015 | GOOD |
| 0.55 | 1.570 ~ 1.860 | 2.160 | 2.160 ~ 2.450 | 2.450 ~ 2.700 | ±0.020 | 0.020 | GOOD |
| 0.60 | 1.570 ~ 1.810 | 2.110 | 2.110 ~ 2.400 | 2.400 ~ 2.560 | ±0.020 | 0.020 | GOOD |
| 0.65 | 1.570 ~ 1.810 | 2.110 | 2.110 ~ 2.400 | 2.350 ~ 2.600 | ±0.020 | 0.020 | GOOD |
| 0.70 | 1.520 ~ 1.770 | 2.060 | 2.060 ~ 2.350 | 2.350 ~ 2.600 | ±0.020 | 0.020 | GOOD |
| 0.80 | 1.520 ~ 1.770 | 2.010 | 2.010 ~ 2.300 | 2.300 ~ 2.550 | ±0.020 | 0.020 | GOOD |
| 0.90 | 1.520 ~ 1.770 | 2.010 | 2.010 ~ 2.260 | 2.250 ~ 2.500 | ±0.020 | 0.020 | GOOD |
| 1.00 | 1.470 ~ 1.720 | 1.960 | 1.960 ~ 2.210 | 2.210 ~ 2.400 | ±0.020 | 0.020 | GOOD |
| 1.20 | 1.420 ~ 1.670 | 1.910 | 1.910 ~ 2.160 | 2.160 ~ 2.350 | ±0.030 | 0.030 | GOOD |
| 1.40 | 1.370 ~ 1.620 | 1.860 | 1.860 ~ 2.110 | 2.110 ~ 2.300 | ±0.030 | 0.030 | GOOD |
| 1.60 | 1.320 ~ 1.570 | 1.810 | 1.810 ~ 2.060 | 2.060 ~ 2.250 | ±0.030 | 0.030 | GOOD |
| 1.80 | 1.270 ~ 1.520 | 1.770 | 1.770 ~ 2.010 | 2.010 ~ 2.210 | ±0.030 | 0.030 | GOOD |
| 2.00 | 1.270 ~ 1.470 | 1.720 | 1.720 ~ 1.960 | 1.960 ~ 2.160 | ±0.030 | 0.030 | GOOD |
| 2.30 | 1.230 ~ 1.420 | 1.670 | 1.670 ~ 1.910 | 1.910 ~ 2.110 | ±0.040 | 0.040 | GOOD |
| 2.60 | 1.230 ~ 1.420 | 1.670 | 1.670 ~ 1.910 | 1.860 ~ 2.060 | ±0.040 | 0.040 | GOOD |
| 2.90 | 1.180 ~ 1.370 | 1.620 | 1.620 ~ 1.860 | 1.810 ~ 2.010 | ±0.040 | 0.040 | GOOD |
| 3.20 | 1.180 ~ 1.370 | 1.570 | 1.570 ~ 1.810 | 1.810 ~ 2.010 | ±0.040 | 0.040 | GOOD |
| 3.50 | 1.180 ~ 1.370 | 1.570 | 1.570 ~ 1.770 | 1.760 ~ 1.960 | ±0.050 | 0.050 | GOOD |
| 4.00 | 1.180 ~ 1.370 | 1.570 | 1.570 ~ 1.770 | 1.720 ~ 1.910 | ±0.050 | 0.050 | GOOD |
| 4.50 | 1.130 ~ 1.320 | 1.520 | 1.520 ~ 1.720 | 1.720 ~ 1.910 | ±0.050 | 0.050 | GOOD |
| 5.00 | 1.130 ~ 1.320 | 1.520 | 1.520 ~ 1.720 | 1.670 ~ 1.860 | ±0.050 | 0.050 | GOOD |
| 5.50 | 1.080 ~ 1.270 | 1.470 | 1.470 ~ 1.670 | 1.620 ~ 1.760 | ±0.050 | 0.050 | GOOD |
| 6.00 | 1.030 ~ 1.230 | 1.420 | 1.420 ~ 1.620 | 1.570 ~ 1.720 | ±0.060 | 0.060 | GOOD |
| 6.50 | 1.030 ~ 1.230 | 1.420 | 1.420 ~ 1.620 | 1.520 ~ 1.670 | ±0.060 | 0.060 | GOOD |
| 7.00 | 980 ~ 1.180 | 1.370 | 1.370 ~ 1.570 | 1.470 ~ 1.620 | ±0.060 | 0.060 | GOOD |
| 8.00 | 980 ~ 1.180 | 1.370 | 1.370 ~ 1.570 | 1.520 ~ 1.670 | ±0.060 | 0.060 | GOOD |
| 9.00 | 930 ~ 1.130 | 1.320 | 1.320 ~ 1.520 | 1.470 ~ 1.620 | ±0.070 | 0.070 | GOOD |
| 10.00 | 930 ~ 1.130 | 1.320 | 1.320 ~ 1.520 | 1.420 ~ 1.570 | ±0.070 | 0.070 | GOOD |
Torsional characteristics
|
Diameter
(mm) |
SW-A | SW-B | SW-C | |||
|---|---|---|---|---|---|---|
| Number of torsions(Min) | Torsional appearance | Number of torsions (Min) | Torsional appearance | Number of torsions(Min) | Torsional appearance | |
| 0.32 ~ 0.65 | - | - | - | - | - | - |
| 0.70 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 0.80 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 0.90 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 1.00 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 1.20 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 1.40 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 1.60 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 1.80 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 2.00 | 20 | GOOD | 20 | GOOD | 20 | GOOD |
| 2.30 | 15 | GOOD | 15 | GOOD | 15 | GOOD |
| 2.60 | 15 | GOOD | 15 | GOOD | 15 | GOOD |
| 2.90 | 15 | GOOD | 15 | GOOD | 15 | GOOD |
| 3.20 | 15 | GOOD | 15 | GOOD | 15 | GOOD |
| 3.50 | 15 | GOOD | 15 | GOOD | 15 | GOOD |
| 4.00 | 10 | GOOD | 10 | GOOD | 10 | GOOD |
| 4.50 | 10 | GOOD | 10 | GOOD | 10 | GOOD |
| 5.00 | 10 | GOOD | 10 | GOOD | 10 | GOOD |
| 5.50 | 10 | GOOD | 10 | GOOD | 10 | GOOD |
| 6.00 | 10 | GOOD | 10 | GOOD | 10 | GOOD |
| 6.50 ~ 10.0 | - | - | - | - | - | - |
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