Oil quenched and tempered wire

Oil tempered steel wire is mainly used to make valve spring, suspension spring, special-shaped spring, clutch spring and so on. We are oil quenched and tempered wire manufacturer, We have sufficient stock for quick delivery.

Product Material: 55CrSi, 65Mn, FDCrSi VDCrSi, SUP12

Application: valve spring, suspension spring, special-shaped spring, clutch spring, etc

Classification		Specification
Classification		KS	JS	ASTM	EN
Oil-Tempered Carbon Wire	SPEC	KS D 3579	JISG3560	ASTM A 229	EN 10270-2
Oil-Tempered Carbon Wire	GRADE	SWO-A, B	SWO-A, B	Class 1, 2	FDC
Oil-Tempered Cr Si Alloyed Wire	SPEC	KS D 3579	JIS G 3560	ASTM A 401	EN 10270-2
Oil-Tempered Cr Si Alloyed Wire	GRADE	SWOSC- B	SWOSC-B	-	FDSiCr
Oil-Tempered Carbon Wire for Clutch Spring	SPEC	-	-	-	EN 10270-2
Oil-Tempered Carbon Wire for Clutch Spring	GRADE	-	-	-	TDC
Oil-Tempered Cr-Si Alyed Wire for Clutch Spring	SPEC	-	-	ASTM A 1000	EN 10270-2
Oil-Tempered Cr-Si Alyed Wire for Clutch Spring	GRADE	-	-	GRADE A	TDSiCr
Oil-Tempered Carbon Wire for Valve Spring	SPEC	KS D 3580	JIS G 3561	ASTM A 230	EN 10270-2
Oil-Tempered Carbon Wire for Valve Spring	GRADE	SWO-V	SWO-V	OT Carbon Valve	VDC
Oil-Tempered Cr-Si Alloyed Wire for Valve Spring	SPEC	KS D 3580	JIS G 3561	ASTM A 877	EN 10270-2
Oil-Tempered Cr-Si Alloyed Wire for Valve Spring	GRADE	SWOSC-V	SWOSC-V	GRADE A	VDSiCr
Oil-Tempered Cr-Si-V Alloyed Wire For Valve Spring	SPEC	-	JIS G 3561	ASTM A 877	EN 10270-2
Oil-Tempered Cr-Si-V Alloyed Wire For Valve Spring	GRADE	-	SWOSCV-V	GRADE B	VDSiCrV

Chemical Composition
Type	C	Si	Mn	P MAX	S MAX	Cr	V	Cu MAX
FDC TDC VDC	0.60~0.75	0.10~0.35	0.50~1.20	0.030	0.030	——	——	0.20
				0.020	0.025			0.12
FDCrV-A TDCrV-A VDCrV-A	0.47~0.55	0.10~0.40	0.60~1.20	0.030	0.030	0.80~1.10	0.15~0.25	0.20
				0.025	0.025			0.12
FDCrV-B TDCrV-B VDCrV-B	0.62~0.72	0.15~0.30	0.50~0.90	0.030	0.030	0.40~0.60	0.15~0.25	0.20
				0.025	0.025			0.12
FDSiMn TDSiMn	0.56~0.64	1.50~2.00	0.60~0.90	0.035	0.035	——	——	0.25
FDCrSi TDCrSi VDCrSi	0.50~0.60	1.20~1.60	0.50~0.90	0.030	0.030	0.50~0.80	——	0.2
				0.025	0.025			0.12

Mechanical properties of static and medium fatigue steel wires

Product Name mm	（Tensile Strength）MPa					Reduction of area % ≥
	（Tensile Strength）MPa					FD	TD
	FDC TDC	FDCrV-A TDCrV-A	FDCrV-B TDCrV-B	FDSiMn TDSiMn	FDCrSi TDCrSi	FD	TD
0.50~0.80	1800~2100	1800~2100	1900~2200	1850~2100	2000~2250	——
> 0.80~1.00	1800~2060	1780~2080	1860~2160	1850~2100	2000~2250
>1.00~1.30	1800~2010	1750~2010	1850~2100	1850~2100	2000~2250	45	45
> 1.30~1.40	1750~1950	1750~1990	1840~2070	1850~2100	2000~2250	45	45
> 1.40~1.60	1740~1890	1710~1950	1820~2030	1850~2100	2000~2250	45	45
> 1.60~2.00	1720~1890	1710~1890	1790~1970	1820~2000	2000~2250	45	45
> 2.00~2.50	1670~1820	1670~1830	1750~1900	1800~1950	1970~2140	45	45
> 2.50~2.70	1640~1790	1660~1820	1720~1870	1780~1930	1950~2120	45	45
> 2.70~3.00	1620~1770	1630~1780	1700~1850	1760~1910	1930~2100	45	45
> 3.00~3.20	1600~1750	1610~1760	1680~1830	1740~1890	1910~2080	40	45
> 3.20~3.50	1580~1730	1600~1750	1660~1810	1720~1870	1900~2060	40	45
> 3.50~4.00	1550~1700	1560~1710	1620~1770	1710~1860	1870~2030	40	45
> 4.00~4.20	1540~1690	1540~1690	1610~1760	1700~1850	1860~2020	40	45
> 4.20~4.50	1520~1670	1520~1670	1590~1740	1690~1840	1850~2000	40	45
> 4.50~4.70	1510~1660	1510~1660	1580~1730	1680~1830	1840~1990	40	45
> 4.70~5.00	1500~1650	1500~1650	1560~1710	1670~1820	1830~1980	40	45
> 5.00~5.60	1470~1620	1460~1610	1540~1690	1660~1810	1800~1950	35	40
> 5.60~6.00	1460~1610	1440~1590	1520~1670	1650~1800	1780~1930	35	40
> 6.00~6.50	1440~1590	1420~1570	1510~1660	1640~1790	1760~1910	35	40
> 6.50~7.00	1430~1580	1400~1550	1500~1650	1630~1780	1740~1890	35	40
> 7.00~8.00	1400~1550	1380~1530	1480~1630	1620~1770	1710~1860	35	40
> 8.00~9.00	1380~1530	1370~1520	1470~1620	1610~1760	1700~1850	30	35
> 9.00~10.00	1360~1510	1350~1500	1450~1600	1600~1750	1660~1810	30	35
> 10.00~12.00	1320~1470	1320~1470	1430~1580	1580~1730	1660~1810	30
> 12.00~14.00	1280~1430	1300~1450	1420~1570	1560~1710	1620~1770	30	——
> 14.00~15.00	1270~1420	1290~1440	1410~1560	1550~1700	1620~1770
> 15.00~17.00	1250~1400	1270~1420	1400~1550	1540~1690	1580~1730
When the diameter of FDSiMn and TDSiMn ≤ 5.00mm, the area shrinkage should be ≥ 35%; when the diameter> 5.00mm ~ 14.00mm, the area shrinkage should be ≥ 30%.

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