Oil Tempered Steel Spring Wire

Anbao Corp.

Site > Home > Wire > Oil Tempered Steel Spring Wire
Product images
Detailed description

Oil Tempered Steel Spring Wire, Oil Tempered Wire

1) Introduction:

Oil Tempered wire is a steel wire with superior elasticity and ductility obtained by oil-quenching and tempered process. OT wire has excellent resistance against heat, fatigue and deformation. OT wire’s main applications are springs for repeated dynamic loads, including engine valve spring.

Grade	Application
Valve Grade	Engine valve spring, clutch spring, pump& generator spring, spring for air compression equipment, auto suspension spring, etc
Commercial Grade	Shutter spring, spring torsion bar, screen, shock absorber spring, spring for industrial machine, hood, mine, spring for garage door, etc.

2) Material: High Carbon Steel, C:>0.5%

3) Diameter: 0.5-17.00mm

4) Standard: ASTM A229, EN10270-2, JIS G 3560-1994

5) Regular grade: 55SiCr, 54SiCr6, SAE9254, SAE9254V, 60Si2MnA, 50CrVA, 65Mn etc.

6.1. Spring Wires Grades

Grade	Static	Medium fatigue	High fatigue
Low tensile strength	FDC	TDC	VDC
Medium tensile strength	FDCr (A.B) FDSiMn	TDCrV (A.B) TDSiMn	VDCrV (A.B)
High tensile strength	FDCrSi	TDCrSi	VDCrSi
Diameter range	2.80mm~17.00mm	2.80mm~17.00mm	2.80mm~10.00mm

6.2. Diameter and Permissible deviation

Diameter range	Permissible deviation (+/-) TD FD VD
>2.80~4.00	0.030
>4.00~5.50	0.035
>5.50~7.00	0.040
>7.00~9.00	0.045
>9.00~10.00	0.050
>10.00~11.00	0.070
>11.00~14.00	0.080
>14.00~17.00	0.090

6.3. Chemical composition % by mass

Grade

Max

FDC

TDC

VDC

0.60~0.75

0.10~0.35

0.50~1.20

0.030

0.020

0.030

0.020

0.80~1.10

0.15~0.25

0.20

0.12

FDCrV-A

TDCrV-A

VDCrV-A

0.47~0.55

0.10~0.40

0.60~1.20

0.030

0.025

0.030

0.025

0.40~0.60

0.15~0.25

0.20

0.12

FDCrV-B

TDCrV-B

VDCrV-B

0.62~0.72

0.15~0.30

0.50~0.90

0.030

0.025

0.030

0.025

0.50~0.80

FDSiMn

TDSiMn

0.56~0.64

1.50~2.00

0.60~0.90

0.035

FDCrSi

TDCrSi

VDCrSi

0.50~0.60

1.20~1.60

0.50~0.90

0.030

0.025

0.030

0.025

6.4. Mechanical properties for Static and Medium fatigue grade steel wire

Tensile strength (Mpa)
Diameter range	FDC	FDCr-A	FDCr-B	FDSiMn	FDCrSi
Diameter range	TDC	TDCr-A	TDCrV-B	TDSiMn	TDCrSi	FD	TD
>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
>6.00~6.500	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

6.5. Mechanical properties for High fatigue grade steel wire

Diameter range	Tensile strength (Mpa)				Rate of reduction in area %≥
	VDC	VDCr-A	VDCr-B	VDCrSi
>2.70~3.00	1590~1740	1600~1750	1660~1810	1880~2030	45
>3.00~3.20	1570~1720	1580~1730	1640~1790	1870~2020	45
>3.20~3.50	1550~1700	1560~1710	1620~1770	1860~2010	45
>3.50~4.00	1530~1680	1540~1690	1570~1720	1840~1990	45
>4.20~4.50	1510~1660	1520~1670	1540~1690	1810~1960	45
>4.70~5.00	1490~1640	1500~1650	1520~1670	1780~1930	45
>5.00~5.60	1470~1620	1480~1630	1490~1640	1750~1900	45
>5.60~6.00	1450~1600	1470~1620	1470~1620	1730~1890	40
>6.00~6.50	1420~1570	1440~1590	1440~1590	1710~1860	40
>6.50~7.00	1400~1550	1420~1750	1420~1570	1690~1840	40
>7.00~8.00	1370~1520	1410~1560	1390~1540	1660~1810	40
>8.00~9.00	1350~1500	1390~1540	1370~1520	1640~1790	35
>9.00~10.00	1340~1490	1370~1520	1340~1490	1620~1770	35

7) Packing: in coils

8) Surface: Phosphated etc.

9) All can be produced according to customers’ actual requirement.

HOME | ABOUT US | PRODUCTS | Factory Video | Past Exhibitions | Send Inquiry | CONTACT US |

Address:1302-1312, Tower A, Jinming International, No. 3 Liupanshan Road, ETDZ, Qinhuangdao, P.R. China 066000
Tel:0086-335-3893600 Fax:0086-335-3870760