Spring Wire

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Product Description

Spring Wire

Steel types: 55CrSi, VDSiCr, FDSiCr, 60Si2Mn, 65MN, SAE9254V, etc.

Production size: 0.5mm-16mm

The choice of spring material must fully consider the performance, size, cycle characteristics, working temperature, environmental media and use conditions of the spring, as well as the purpose, importance and spring load of factors such as mechanical processing, heat treatment and economy, so that the selection results are in line with reality Require. Steel is the most commonly used spring material. Non-ferrous metals can be used when the force is small and the anti-corrosion and anti-magnetic properties are required.

Technical specification for spring steel wire

Chemical composition (mass fraction)%

Mechanical and process performance and quality requirements of wire grades TDC, TDCrV, TDSiCr, TDSiCrV, VDC, VDCrV, VDSiCr and VDSiCrV

Code	C	silicon	manganese	greatest pressure	maximum	chromium	Volt	Copper maximum
FDC	0.60-0.75	0.10-0.35	0.50-1.20	0.030	0.030			0.20
Trade Development Council				0.020	0.025			0.12
DC voltage
FDCrV-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
TDCrV-A				0.025	0.025			0.12
VDCrV-A
FDCrV-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
TDCrV-B				0.025	0.025			0.12
VDCrV-B
Silicomanganese	0.56-0.64	1.50-2.00	0.60-0.90	0.035	0.035			0.25
TDSiMn
Silicon carbide	0.5-0.6	1.20-1.60	0.50-0.90	0.030	0.030	0.50-0.80		0.20
Silicon carbide				0.025	0.025			0.12

Nominal wire diameter	Allowable deviation	Tensile strength Rm /MPa
/ Mm	/ Mm	FDCb	FDCrVb	Silicon carbide	FDSiCrVb
0.80<d≤1.00	±0.015	1860-2060	1960-2160	2100-2300	2280-2430
1.00<d≤1.30	±0.020	1810-2010	1900-2100	2070-2260	2280-2430
1.30<d≤1.40		1790-1970	1870-2070	2060-2250	2260-2410
1.40<d≤1.60		1760-1940	1840-2030	2040-2220	2260-2410
1.60<d≤2.00	±0.025	1720-1890	1790-1970	2000-2180	2210-2360
2.00<d≤2.50		1670-1820	1750-1900	1970-2140	2160-2310
2.50<d≤2.70		1640-1790	1720-1870	1950-2120	2110-2260
2.70<d≤3.00	±0.030	1620-1770	1700-1850	1930-2100	2110-2260
3.00<d≤3.20		1600-1750	1680-1830	1910-2080	2110-2260
3.20<d≤3.50		1580-1730	1660-1810	1900-2060	2110-2260
3.50<d≤4.00		1550-1700	1620-1770	1870-2030	2060-2210
4.00<d≤4.20	±0.035	1540-1690	1610-1760	1860-2020	2060-2210
4.20<d≤4.50		1520-1670	1590-1740	1850-2000	2060-2210
4.50<d≤4.70		1510-1660	1580-1730	1840-1990	2010-2160
4.70<d≤5.00		1500-1650	1560-1710	1830-1980	2010-2160
5.00<d≤5.60		1470-1620	1540-1690	1800-1950	2010-2160
5.60<d≤6.00	±0.040	1460-1610	1520-1670	1780-1930	1960-2110
6.00<d≤6.50		1440-1590	1510-1660	1760-1910	1960-2110
6.50<d≤7.00		1430-1580	1500-1650	1740-1890	1960-2110
7.00<d≤8.00	±0.045	1400-1550	1480-1630	1710-1860	1910-2050
8.00<d≤8.50	±0.045	1380-1530	1470-1620	1700-1850	1890-2030
8.50<d≤10.00	±0.050	1360-1510	1450-1600	1660-1810	1870-2010
10.00<d≤12.00	±0.070	1320-1470	1430-1580	1620-1770	1830-1970
12.00<d≤14.00	±0.080	1280-1430	1420-1570	1580-1730	1790-1930
14.00<d≤15.00	±0.080	1270-1420	1410-1560	1570-1720	1780-1920
15.00<d≤17.00	±0.090	1250-1400	1400-1550	1550-1700	1760-1900
b 1 Mpa =1 N/mm2

Spring Wire

The impact of improper use on the life of the spring wire rope:

Wear:

It is a common phenomenon. Choosing a spring wire rope with the correct structure can ensure that wear is only a secondary factor of damage, and lubrication can help reduce wear.

Broken wire:

It is a common phenomenon at the end of the service life of spring wire ropes, caused by bending fatigue and wear. Local broken wires may indicate mechanical defects in the equipment, and correct lubrication will improve the fatigue performance of the wire rope.

Deformation:

It is often the result of mechanical damage, if severe, it will greatly affect the length of the spring wire rope. Rust indicates that lack of proper lubrication leads to rust. In some cases, obvious point-like rust marks will appear on the outer surface of the spring steel wire, and the wire will eventually break.

Internal corrosion:

Occurs when the lubrication is insufficient or the way is incorrect. The reduction of pulp often causes observers to speculate. At this point, the judgment can only be confirmed by opening the wire rope with calipers or the correct use of rivets for internal inspection.

Multi-layer winding:

Winding the rope in multiple layers on the drum will cause serious deformation of the lower wire rope.

Bad entanglement:

Excessive inclination or loose winding can cause mechanical damage, which manifests as severe extrusion, which may cause sudden load during operation.

The sheave diameter is too small:

It will cause the wire rope to deform and inevitably cause premature wire breakage.

Spring Wire