Hard Drawn Steel Wire hard-drawn1-title-1(en)Hard drawn steel wire is made by the special heat treatment and cold drawing process by using high quality high carbon steel wire rods. The usage of the hard drawn steel wire is mainly for the spring of wide general purpose.
General case WIRE ROD heat treatment the material hard steel wire(Option)  → 1 The following cold drawing → processing(Anneal the ring) → Refers to products that are secondary cold drawing. There is also a product of only the primary cold drawing at the request of customers.

Standard Number
Details
KS D 3510
Hard Drawn Steel Wires
JIS G 3521
Hard Drawn Steel Wires
ASTM A 227
Steel Wire Cold Drawn for Mechanical Springs
ASTM A 407
Steel Wire Cold Drawn for Coiled Type Springs
ASTM A 417
Steel Wire, Cold-Drawn, for Zig-zag, square-formed, and sinuous-type upholstery Spring units
ASTM A 679
Steel Wire, High Tensile Strenght, Hard Drawn, for Mechanical Springs
AS 1472
Carbon Steel Spring Wire for Mechanical Springs
BS 1408
Patented Cold Drawn Steel Spring Wire
BS 4637
Carbon Steel Wire fo Coiled Springs
BS 4638
Carbon Steel Wire fo Zig-Zag and square-formed Springs
BS 5216
Patented Cold Drawn Carbon Steel Wire fo Mechanical Springs
DIN 17223
Round Springs Steel Wire Quality Speccification Patened Drawn Spring Wire Made of Unalloyed Springs

 

Raw materials

JIS SWRH 42A, 42B, 62A, 62B, 67A, 67B, 72A, 72B, 77A, 77B, 82A, 82B 5.5~10mm Wire rod or equivalent material Purujiru hard steel wire

Chung Woo Rope Manufactured products

Span of rain or shine dehorning which is manufactured by using advanced materials hard steel wire excellent in linearity, Habit will have very good without broken or flatness, of the line Wave.
In particular, produced in state-of-the-art facilities to heat treatment equipment and wire drawing machine that affect the quality of the product We have to be able to meet the demands of customers.
We secure skilled workforce excellent, In habit of the line is is better to produce in the winder fresh food self-winding, Lubrication of the surface has been producing the product hard steel wire and high strength product hard steel wire of various uniform.
ChungWoo Product hard steel wire will do our best to be the processing quality of certain processing equipment during processing a variety of customers.

Purpose
Division
Carbon content
General purpose
For spring Hard steel wire
0.40~0.50%
Bicycle rib, Mass rib, Thresher mesh, for Rolled, Bolt, TuningPin, for Hairpins
0.50~0.65%
for Rolled, Short, Hairpins, Washers, Out Casing, Each drive, Zigzag Spring, Screen mesh, for wire netting
0.65~0.86%
Tension Spring, Compression springs, Torsion Springs, Syatteo Spring, Aluminum duct, Wire fillet, Rim Drive, Bearing, Absorber, Bed spring, Creep, Brush, Jechim, Clothes peg, Fretsaw, Concrete nails, PC tube, Bag rim, Thresher rib, for Chains

 

Types and symbols, and apply the wire diameter
Division
Carbon content
General purpose
for spring Hard steel wire
0.40~0.50%
Bicycle rib, rib mass, Thresher network, Rolled, Bolts, Tuning pins, for Hairpins
0.50~0.65%
Rolled, short, hair clips, washers, Out Casing, Each drive, zigzag spring, screen mesh, for wire mesh
0.65~0.86%
Tension Spring, compression spinner ring, torsion springs, spring syatteo, aluminum duct, card clothing, environmental deuriyibeu, bearings, Absorber, bed springs, creep, brushes, jechim, Clothes peg, jigsaw, Concrete nails, PC tube, bag te, Thresher rib , for chains
Hard Drawn Steel wire

Tensile strength / Diameter difference / Ovality / Appearance characteristics

Standard diameter/strong>
mm
Tensile strength
SW-A,B,C Diameter difference / Ovality / Appearance
SW-A N/mm²
SW-B N/mm²
SW-C N/mm²
High strength Hard steel wire N/mm²
Diameter difference mm
Ovality mm(Max.)
Appearance/div>
0.32
1,720 ~ 2,010
2,300
2,300 ~ 2,600
2,600 ~ 2,840
± 0.015
0.015
GOOD
0.35
1,720 ~ 2,010
2,300
2,300 ~ 2,600
2,600 ~ 2,840
± 0.015
0.015
GOOD
0.40
1,670 ~ 1,960
2,260
2,260 ~ 2,500
2,550 ~ 2,790
± 0.015
0.015
GOOD
0.45
1,620 ~ 1,910
2,210
2,210 ~ 2,500
2,500 ~ 2,740
± 0.015
0.015
GOOD
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
2,260
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
2,060 ~ 2,350
± 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

1) State of fracture surface : The fracture surface is perpendicular to the axis should not be Severe scratches, cracks, etc. .

Hard steel wire

Torsional characteristics

Standard diameter
mm
SW-A
SW-B
SW-C
Number of torsionNumber(Min)
Torsion Appearance
Number of torsionNumber(Min)
Torsion Appearance
Number of torsionNumber(Min)
Torsion 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
-
-
-
-
-
-

 

비틀림특성_이미지

Hard Drawn Steel wire

Method and packing size of wire diameter for each

Last diameter diameter(mm)
Coil inside diameter(mm)
Coil unit weight(kg)
Carrier unit weight(kg)
0.32 ~ 0.54
130 ~ 140
30
-
0.55 ~ 0.99
180 ~ 200
50
-
1.00 ~ 1.49
280 ~ 300
100
250
1.50 ~ 1.99
380 ~ 410
100
500
2.00 ~ 2.89
480 ~ 510
100
500 ~ 1000
2.90 ~ 6.99
630 ~ 660
100 ~ 250
500 ~ 1000
0.55 ~ 0.99
180 ~ 200
50
-
1.00 ~ 1.49
280 ~ 300
100
250
1.50 ~ 1.99
980 ~ 410
100
500
2.00 ~ 2.89
480 ~ 510
100
500 ~ 1000
2.90 ~ 6.99
630 ~ 660
100 ~ 250
500 ~ 1000
7.00 ~ 10.0
630 ~ 660
100 ~ 250
-
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