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Oil tempered carbon steel spring wire

Item Code: Features:1. Material: 65#; 70#; 65Mn; 82B; 72A; 72B and so on. 2. Size: Diamteter：0.5mm-12mm 3. Usage: Finished spring; suspension spring frame; auto and motorcycle bicycle parts etc.

Description

Commodity: Oil tempered carbon steel spring wire

1. Material 65#; 70#; 65Mn; 82B; 72A; 72B and so on.

2. Usage Finished spring; suspension spring frame; auto and motorcycle bicycle parts;
instruments; furniture manufacturing; etc.

3. Size Diameter: 0.5mm-12mm.

4. Material chemical composition

Steel grade	C	Mn	S	P	Si	Cr	Cu
65Mn	0.63～0.65	0.98～1.1	≤0.01	≤0.014	0.19～0.22	≤0.2	≤0.05
82B	0.76～0.86	0.60～0.90	≤0.025	≤0.025	0.15～0.35	0.2～0.4
72A	0.85～0.94	≤0.40	≤0.020	≤0.030	≤0.35	≤0.25	≤0.30
65#	0.62～0.70	0.50～0.80	≤0.035	≤0.035	0.17～0.37	≤0.25	≤0.25

5. Tensile strength

	Tensile	strength	/Mpa			Reduction	of area	Diameter (mm) +/-	deviation
Diameter(d/mm)	FDC/TDC	FDCrV-A/TDCrV-A	FDCrV-B/TDCrV-B	FDSiMn/TDSiMN	FDCrSi/TDCrSi	FD	TD	FD	TD	FD	TD
>2.0-2.5	1670-1820	1670-1830	1750-1900	1800-1950	1970-2140	45	45	0.030	0.025	1.0% d	0.8% d
>2.5-2.7	1640-1790	1660-1820	1720-1870	1780-1930	1950-2120	45	45	0.030	0.025	1.0% d	0.8% d
>2.7-3.0	1620-1770	1630-1780	1700-1850	1760-1810	1930-2100	45	45	0.030	0.025	1.0% d	0.8% d
>3.0-3.2	1600-1750	1610-1760	1680-1830	1740-1890	1910-2080	40	45	0.030	0.030	1.0% d	0.8% d
>3.2-3.5	1580-1730	1600-1750	1660-1810	1720-1870	1900-2060	40	45	0.030	0.030	1.0% d	0.8% d
>3.5-4.0	1550-1700	1560-1710	1620-1770	1710-1860	1870-2030	40	45	0.035	0.035	1.0% d	0.8% d
>4.0-4.2	1540-1690	1540-1690	1610-1760	1700-1850	1860-2020	40	45	0.035	0.035	1.0% d	0.8% d
>4.2-4.5	1520-1670	1520-1670	1590-1740	1690-1840	1850-2000	40	45	0.035	0.035	1.0% d	0.8% d
>4.5-4.7	1510-1660	1510-1660	1580-1730	1680-1830	1840-1990	40	45	0.035	0.035	1.0% d	0.8% d
>4.7-5.0	1500-1650	1500-1650	1560-1710	1670-1820	1830-1980	40	45	0.035	0.035	1.0% d	0.8% d
>5.0-5.6	1470-1620	1400-1610	1540-1690	1660-1810	1800-1950	35	40	0.040	0.040	1.0% d	0.8% d
>5.6-6.0	1460-1610	1440-1590	1520-1670	1650-1800	1780-1930	35	40	0.040	0.040	1.0% d	0.8% d
>6.5-7.0	1440-1590	1420-1570	1510-1660	1640-1790	1760-1910	35	40	0.045	0.045	1.4% d	1.0% d
>7.0-8.0	1400-1550	1380-1530	1480-1630	1620-1770	1710-1860	35	40	0.045	0.045	1.4% d	1.0% d
>8.0-9.0	1380-1510	1370-1520	1470-1620	1610-1760	1700-1850	30	35	0.045	0.045	1.4% d	1.0% d
>9.0-10.0	1380-1510	1350-1500	1450-1600	1600-1750	1660-1810	30	35	0.050	0.050	1.4% d	1.0% d
>10.0-12.0	1320-1470	1320-1470	1430-1580	1580-1730	1660-1810	30	/	0.070	0.070	0.20	0.10

6. Supply mode: In coil, ID1800mm,coil weight 500-100kg.scale: 2000-4000mm.

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