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Oil tempered bright spring steel wire

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Item Code: Features:1. Material: 55Cr3; 60Si7; CK67; 60SiCr7; 50CrV4; 100Cr6 and so on. 2. Size: Diamteter：3mm--20mm 3. Usage: Standard; Furniture manufacturing; Fasteners, Auto parts; Hardware, etc.

Description

Commodity: Oil tempered bright spring steel wire

1. Material JIS: SUP6; SUP7; SUP9; SUP9A; SUP10; SUP12; SUP12V; S60C.
                    SAE: SAE9254; SAE9260; SAE6150; SAE9255; SAE1566; SAE1065; SAE52100.
                    DIN: 55Cr3; 60Si7; CK67; 60SiCr7; 50CrV4; 100Cr6.

2. Usage Spring; finished spring; shock absorber; clutch spring; brake shaft;
precision instruments; toys making and so on.

3. Size Diamteter: 3mm--20mm

4. Material chemical composition

Steel grade	C	Mn	S	P	Si	Cr	Cu
SUP9	0.52～0.60	0.65～0.95	≤ 0.030	≤ 0.030	0.17～0.37	0.65～0.95	≤0.25
SAE9254	0.51～0.59	0.60～0.90	≤0.040	≤ 0.035	1.20～1.60	0.60～0.80
SAE6150	0.48～0.53	0.70～0.90	≤ 0.035	≤ 0.040	0.15～0.35	0.80～1.10
55CrSi	0.50～0.60	0.50～0.80	≤ 0.030	≤ 0.030	1.20～1.60	0.50～0.80	≤ 0.02
60Si2Mn	0.56～0.64	0.60～0.90	≤ 0.035	≤ 0.035	1.60～2.00	≤ 0.035	≤0.25
SAE52100	0.95～1.05	0.25～0.45	≤0.025	≤0.025	0.15～0.35	1.40～1.65	≤ 0.25
100Cr6	0.95～1.05	0.25～0.45	≤0.025	≤0.025	0.15～0.35	1.40～1.65	≤0.25
SUP10	0.47～0.55	0.65～0.95	≤ 0.030	≤ 0.030	0.15～0.35	0.80～1.10	≤0.25

5. Tensile strength

Dimater d/mm	FDC TDC	FDCrV-A TDCrV-A	FDCrV-B TDCrV-B	FDSiMn TDSiMn	FDCSi TDCrSi
>3.0-3.2	1600-1750	1610-1760	1680-1830	1740-1890	1910-2080
>3.2-3.5	1580-1730	1600-1750	1660-1810	1720-1870	1900-2060
>3.5-4.0	1550-1700	1560-1710	1620-1770	1710-1860	1870-2030
>4.0-4.2	1540-1690	1540-1690	1610-1760	1700-1850	1860-2020
>4.2-4.5	1520-1670	1520-1670	1590-1740	1690-1870	1850-2000
>4.5-4.7	1510-1660	1510-1660	1580-1730	1680-1830	1840-1990
>4.7-5.0	1500-1650	1500-1650	1560-1710	1670-1820	1830-1980
>5.0-5.6	1470-1620	1400-1610	1540-1690	1660-1810	1800-1950
>5.6-6.0	1460-1610	1440-1590	1520-1670	1650-1800	1780-1930
>6.0-6.5	1440-1590	1420-1570	1510-1660	1640-1790	1760-1910
>6.5-7.0	1430-1580	1400-1550	1500-1650	1630-1780	1470-1890
>7.0-8.0	1400-1550	1380-1530	1480-1630	1620-1770	1710-1860
>8.0-9.0	1380-1530	1370-1520	1470-1620	1610-1760	1700-1850
>9.0-10.0	1380-1510	1350-1500	1450-1600	1600-1750	1660-1810
>10.0-12.0	1320-1470	1320-1470	1430-1580	1580-1730	1660-1810
>12.0-14.0	1280-1430	1300-1450	1420-1570	1560-1710	1620-1770
>14.0-15.0	1270-1420	1290-1440	1410-1560	1550-1700	1620-1770
>15.0-17.0	1250-1400	1210-1420	1400-1550	1540-1690	1580-1730

Note: The allowed fluctuation of tensile strength for a reel of steel wire: FD steel wire≤70MPa TD

steel wire ≤60MPa.

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