72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
72A 72B SWRH72A SWRH72B Cold Drawn High Carbon Spring Steel Wires
Model
72A 72B SWRH72A SWRH72B

Item specifics

Diameter
0.1-10mm
Delivery Condition
Hard Drawn
Surface Condition
Bright

Review

Description

Products Details

High Carbon Steel Spring Wires have the characteristics of stable chemical composition, small deviation,uniform cleaning rod performance, high rate sorbitizing, good plasticity. High carbon steels are difficult to weld because they contain carbon in the range of 0.6 percent to 1.0 percent. High carbon steels are susceptible to heat, and it easily flame hardened which allows it to be worked into many different forms. High carbon steels have greater tensile strength and are used to create products where strength is required.


Chemical Composition(%)

Steel Grade

C

Si

Mn

P

S

Cr

42A/B

0.42--0.45

0.20-0.21

0.61

0.011

0.005

0.06

SAE1045

0.44--0.46

0.20--0.23

0.57--0.60

0.009

0.008

0.02--0.09

SAE1060

0.60-0.61

0.18--0.22

0.52--0.59

0.012

0.007

0.06--0.07

SAE1065

0.65

0.21

0.56

0.013

0.008

0.05

65Mn

0.65

0.23

0.95

0.012

0.007

0.02

SAE1070

0.69--0.71

0.19--0.21

0.53--0.58

0.010-0.012

0.003-0.006

0.01--0.05

72A/B

0.72

0.19

0.71

0.013

0.006

0.02

SAE1080

0.80-0.81

0.22-0.24

0.59-0.76

0.01

0.004

0.04

SAE1084

0.8~0.93

/

0.6~0.9

≤0.04

≤0.05

B0.0005~0.003

82B

0.82

0.24-0.25

0.76-0.77

0.011-0.014

0.004-0.007

0.14-0.17

Application: for general application spring and mechanical spring.
Beside to make the wire according to the standard, we also try to supply the wire according customer's
special requirement.

Technical specification:
(1)Standard: DIN17223-1-1984,EN10270-1,ASTM-A227,GB4357-89
(2)Size: 0.20mm-14.0mm

1. General introduction:
Raw material is rigorously selected and approved before put into processing For serving spring and wire form industry, high tensile strength is not the ultimate goal to pursue, but the balance of flexibility and tensile strength to prevent our wire from deformed or broken up during winding in spring machine. In addition, for other usage, our products also have gained a sound reputation from the appliance as controlling cable or connecting wire for automobile industry and hard needle. Hot-dipped and electro-galvanized spring wire available.

2. Range of application:
(1) mattress spring
(2) compression spring
(3) extension spring
(4) torsion spring
(5) mechanical spring
(6) wire forms
(7) core of controlling cable
(8) connecting wire
(9) hard needle

3. Specifications:
(1) 0.30mm-13.00mm to comply with DIN17223-1-1984 Class B
(2) 0.30mm-3.50mm to comply with DIN1723-1-1984, Class C, EN10270-SH
(3) 0.30mm-2.00mm to comply with DIN1723-1-1984 Class D
(4) 0.30mm-13.00mm to comply with ASTM-A227 grade I and II
(5) lightly-oiled or heavily-oiled subject to requirement.
(6) Other standards are subject to requirements, such JIS, AS or GB

Mechanical Properties

No.
DIAMETER (MM)
TENSILE STRENGTH MPA
TORSIONS Min./360°
1
0.30mm
2010-3000
20
2
0.45mm
2200-2600
20
3
0.50mm
2200-2600
20
4
0.55mm
2150-2550
20
5
0.60mm
2110-2500
20
6
0.70mm
2060-2450
20
7
0.80mm
2010-2400
20
8
0.90mm
2010-2350
20
9
1.00mm
1960-2300
20
10
1.20mm
1910-2250
20
11
1.40mm
1860-2210
20
12
1.60mm
1810-2160
20
13
1.80mm
1760-2110
15
14
2.00mm
1710-2010
15
15
2.30mm
1660-1960
15
16
2.60mm
1660-1960
15
17
2.90mm
1620-1910
12
18
3.20mm
1570-1860
12
19
3.60mm
1570-1810
12
20
4.00mm
1570-1810

21
4.50mm
1520-1710

22
5.00mm
1470-1710

23
5.50mm
1470-1710

24
6.0mm-8.0mm
1370-1660

25
9.0mm-14.0mm
1130-1420