Product Details
Carbon spring steel wire (GB/T4357-1989)
Dimensions, chemical composition and uses
|
Diameter mm
|
Tensile strength/MPa
|
||
|
Grade B
|
Grade C
|
Grade D
|
|
|
0.08
|
2400-2800
|
2740-3140
|
2840-3240
|
|
0.09
|
2350-2750
|
2690-3090
|
2840-3240
|
|
0.10
|
2300-2700
|
2650-3040
|
2790-3190
|
|
0.12
|
2250-2650
|
2600-2990
|
2740-3140
|
|
0.14
|
2200-2600
|
2550-2940
|
2740-3140
|
|
0.16
|
2150-2550
|
2500-2890
|
2690-3090
|
|
0.18
|
2150-2550
|
2450-2840
|
2690-3090
|
|
0.20
|
2150-2550
|
2400-2790
|
2690-3090
|
|
0.22
|
2110-2500
|
2350-2750
|
2690-3090
|
|
0.25
|
2060-2450
|
2300-2700
|
2640-3040
|
|
0.28
|
2010-2400
|
2300-2700
|
2640-3040
|
|
0.30
|
2010-2400
|
2300-2700
|
2640-3040
|
|
0.32
|
1960-2350
|
2250-2650
|
2600-2990
|
|
0.35
|
1960-2350
|
2250-2650
|
2600-2990
|
|
0.40
|
1910-2300
|
2250-2650
|
2600-2990
|
|
0.45
|
1860-2260
|
2300-2600
|
2550-2940
|
|
0.55
|
1810-2210
|
2150-2550
|
2500-2890
|
|
0.60
|
1760-2160
|
2110-2500
|
2450-2840
|
|
0.63
|
1760-2160
|
2110-2500
|
2450-2840
|
|
0.70
|
1710-2110
|
2060-2450
|
2450-2840
|
|
0.80
|
1710-2060
|
2010-2400
|
2400-2840
|
|
0.90
|
1710-2060
|
2010-2350
|
2350-2750
|
|
1.00
|
1660-2010
|
1960-2300
|
2300-2690
|
|
1.20
|
1620-1960
|
1910-2250
|
2250-2550
|
|
1.40
|
1620-1910
|
1860-2210
|
2150-2450
|
|
1.60
|
1570-1860
|
1810-2160
|
2110-2400
|
|
1.80
|
1520-1810
|
1760-2110
|
2010-2300
|
|
2.00
|
1470-1760
|
1710-2010
|
1910-2200
|
|
2.50
|
1420-1710
|
1660-1960
|
1760-2060
|
|
2.80
|
1370-1670
|
1620-1910
|
1710-2010
|
|
3.00
|
1370-1670
|
1570-1860
|
1710-1960
|
|
3.20
|
1320-1620
|
1570-1810
|
1660-1910
|
|
3.50
|
1320-1620
|
1570-1810
|
1660-1910
|
|
4.00
|
1320-1620
|
1520-1760
|
1620-1860
|
|
4.50
|
1320-1570
|
1520-1760
|
1620-1860
|
|
5.00
|
1320-1570
|
1470-1710
|
1570-1810
|
|
5.50
|
1270-1520
|
1470-1710
|
1570-1810
|
|
6.00
|
1220-1470
|
1420-1660
|
1520-1760
|
|
6.30
|
1220-1470
|
1420-1610
|
-
|
|
7.00
|
1170-1420
|
1370-1570
|
-
|
|
8.00
|
1170-1420
|
1370-1570
|
-
|
|
9.00
|
1130-1320
|
1320-1520
|
-
|
|
10.00
|
1130-1320
|
1320-1520
|
-
|
Torsion test of carbon spring steel wire
|
Wire diameter/mm
|
Number of torsions ≥
|
|
|
Grade B, C
|
Grade D
|
|
|
≤2.00
|
20
|
18
|
|
＞2.00-3.00
|
15
|
13
|
|
＞3.00-4.00
|
12
|
8
|
|
＞4.00-5.00
|
10
|
5
|
|
＞5.00-6.00
|
8
|
3
|
Note: 1. Wire with a diameter greater than 6.00mm should be subjected to torsion test, and the number of torsions should meet the requirements in the table;
2. During torsion, the wire surface shall not have any visible cracks or delamination within the specified number of torsions.
|
Wire grade
|
Wire diameter d/mm
|
Mandrel diameter/mm
|
Number of wraps
|
|
Grade B, C
|
≤6.00
|
d
|
≥2
|
|
Grade D
|
≤4.00
|
||
|
＞4.00
|
2d
|
Note: 1. The wire is inspected by winding according to the table, and the surface of the wound sample shall not have cracks or breaks;
2. Wires with a diameter greater than 6.00 mm shall be subjected to bending tests, and the surface of the bent sample shall not have cracks or breaks.
Oil quenching - tempering carbon spring steel wire (YB/T 5103-1993)
Chemical composition, dimensions and uses
|
Grade
|
Chemical Composition
|
Diameter range/mm
|
Use
|
||
|
Class A
|
Class B
|
Class A
|
Class B
|
||
|
55, 60, 60Mn, 65, 65Mn, 70, 70Mn
|
65, 70, 65Mn, 70Mn, 75, 80
|
Complies with GB/T4354-1994
|
2.0-12.0
|
2.0-12.0
|
Used for general mechanical springs
Class A is suitable for general strength; Class B is used for higher strength
|
Note: 1. The wire diameter complies with the provisions of GB/T342;
2. The wire shape is complete and shall not have any bending that affects its use.
Mechanical Properties of Wire
|
Diameter/mm
|
Tensile strength/MPa
|
|
|
Class A
|
Class B
|
|
|
2.00
|
1620-1765
|
1715-1865
|
|
2.20
|
1570-1715
|
1665-1815
|
|
2.50
|
1570-1715
|
1665-1815
|
|
3.00
|
1520-1665
|
1620-1765
|
|
3.20
|
1470-1620
|
1570-1715
|
|
3.50
|
1470-1620
|
1570-1715
|
|
4.00
|
1420-1570
|
1520-1665
|
|
4.50
|
1375-1520
|
1470-1620
|
|
5.00
|
1325-1470
|
1420-1570
|
|
5.50
|
1275-1420
|
1375-1520
|
|
6.00
|
1275-1420
|
1375-1520
|
|
6.50
|
1275-1420
|
1375-1520
|
|
7.00
|
1225-1375
|
1325-1470
|
|
8.00
|
1225-1375
|
1325-1470
|
|
9.00
|
1225-1375
|
1325-1470
|
|
10.00
|
1175-1325
|
1275-1420
|
|
11.00
|
1175-1325
|
1275-1420
|
|
12.00
|
1175-1325
|
1275-1420
|
Note: 1. The wire is delivered after oil quenching and tempering.
2. Wires with a diameter greater than 6.00 mm shall be subjected to bending test, and shall not produce cracks or fractures.
3. Wires with a diameter less than or equal to 6.00 mm shall not produce cracks or fractures after winding test.
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Anqiu Company
Address: Dasheng Town Industrial Park
Tel: (86)13210750666
Fax: (86) 536-6231987
Email:jinyuan6566@163.com
Website:www.jsygs.cn