Oil Tempered Spring Steel Wire

• Customization: Available
• Certification: ISO, CCC, CE
• Surface: Smooth
• Model NO.: 55crsi 60si2mn 55CRV
• Technique: Oil Tempered
• Application: Netting, Manufacturing, Fencing, Construction, Spring
• Alloy or Not: Alloy
• Standard: BS, JIS, GB, ASTM, DIN, AISI
• Transport Package: Coil/Pallet
• Specification: 1.0-20MM
• Trademark: CX
• Origin: Nantong
• HS Code: 72299090
• Production Capacity: 300ton/Month

Product Description

Product Description

Oil tempered spring steel wire

1. Use: Making for engine valve spring, clutch spring, oil pump nozzle spring, auto belt tightening pulley spring. And supporting spring in piston ring etc.

2. Material: 55CrSi/60Si2Mn/55CrV
Equivalant material to 55CrSi is ASTM 9254,SAE 9254,AISI 9254,JIS SUP 12,DIN 1.7102,DIN 54SiCr6,UNI 54SiCr6

Chemical composition
Carbon C: 0.56~0.6
Silicon Si: 1.20~1.60
Manganese Mn: 0.50~0.90
Chromium Cr: 0.5-0.8
Sulfur S: ≤0.025
Phosphorus P: ≤0.025
Copper Cu: ≤0.12

3. Specification: 0.6mm-8.0mm.

SIZE/ mm	TOLERANCE/ mm	TENSILE STRENGTH- mm/2
		CLASS A	CLASS B	CLASS C
0.6			2140-2400
0.65			2120-2370
0.7			2090-2350
0.75			2070-2320
0.8			2050-2300
0.85	±0.025		2030-2280
0.9			2010-2260
0.95			2000-2240
1		1720-1970	1980-2220
1.2		1670-1910	1920-2160
1.4		1620-1860	1870-2100
1.5	±0.035	1600-1840	1850-2080
1.6		1590-1820	1830-2050
1.8		1550-1780	1620-1910
2		1520-1750	1570-1860	1980-2200
2.1		1510-1730	1570-1810	1970-2180
2.5		1460-1680	1520-1760	1900-2110
2.8		1420-1640	1520-1760	1860-2070
3		1410-1620	1470-1710
3.2		1390-1600	1470-1710
3.4	±0.045	1370-1580	1420-1610
3.6		1350-1560	1420-1610
3.8		1340-1540	1370-1570
4		1320-1520	1370-1570
4.5		1290-1490	1320-1520
5		1260-1450	1320-1520	1660-1840
5.3		1240-1430	1440-1630	1640-1820
5.6		1230-1420	1430-1610	1620-1800
6	±0.060	1210-1390	1400-1580	1590-1770
6.3		1190-1380	1390-1560	1570-1750
6.5		1180-1370	1380-1550	1560-1740
7		1160-1340	1350-1530	1540-1710
7.5		1140-1320	1330-1500	1510-1680
8		1120-1300	1310-1480	1490-1660
Class D available for sizes below 1.00mm

4. Standard: JISG3560-94; GB18983-2003; EN102702: 2001 or agreement.

5. Major technical index:
(1) The steel wires have their grain size to be larger than grade 10 and have good anti-relaxation performance.
(2) The ratio of yeild strengh to tensile strength is larger than 0.9, and the fluctuation of its tensile strength of the same coil shall be less than 50Mpa.
(3) Of peeling and no-peeling mode, the product has realized online eddy-current test. The defect is marked red and the Surface quality is good.
(4) Raw material for high-stress oil quenchng-tempering spring steel wire are mainly imported.

6. Package: Soft package for wire rod coils or pallet