Spring Wire
Spring Wire Drawn patented, EN 10270-1
During patenting, the drawn or prerolled wire is heated to hardening temperature and then is quenched isothermally to 500 - 600 °C in a lead bath, salt bath or air.This results in a fine pearlitic structure. The wire cross-section is then reduced to the required size by cold drawing. The cross section reduction is up to 80%. This achieves the desired values for tensile strength, elasticity limit and elongation.
| Size Range: | 0.30 - 15.0 mm |
| Surfaces: | phosphated / galvanized / blank |
| Delivery form: | Rings / Coils / Rods |
| Designation | Standard | Previously DIN | Application |
|---|---|---|---|
| SL | EN 10270-1 | Type A | statically light load |
| SM | EN 10270-1 | Type B | statically medium stress |
| SH | EN 10270-1 | Type C | statically high stress |
| DM | EN 10270-1 | - | dynamic average stress |
| DH | EN 10270-1 | Type D | dynamic high stress |
Chemical Analysis
| Designation | Standard | DIN | C % | Si % | Mn % | Cu % |
|---|---|---|---|---|---|---|
| SL | EN 10270-1 | Type A | 0.35-1.00 | 0.10-0.30 | 0.50-1.20 | < 0.20 |
| SM | EN 10270-1 | Type B | 0.35-1.00 | 0.10-0.30 | 0.50-1.20 | < 0.20 |
| SH | EN 10270-1 | Type C | 0.35-1.00 | 0.10-0.30 | 0.50-1.20 | < 0.20 |
| DM | EN 10270-1 | - | 0.45-1.00 | 0.10-0.30 | 0.50-1.20 | <0.12 |
| DH | EN 10270-1 | Type D | 0.45-1.00 | 0.10-0.30 | 0.50-1.20 | <0.12 |
Mechanical Specifications
| Dimension | Tensile Strength (N/mm2) | |||||
|---|---|---|---|---|---|---|
| Ø (mm) | Tolerance | SL (Type A) | SM (TypeB) | DM | SH (Type C) | DH (Type D) |
| 0.10 | +/-0.004 | 2800-3380 | ||||
| 0.15 | +/-0.004 | 2800-3255 | ||||
| 0.20 | +/-0.005 | 2800-3110 | ||||
| 0.25 | +/-0.005 | 2800-3110 | ||||
| 0.30 | +/-0.008 | 2370-2650 | 2370-2650 | 2660-2940 | 2660-2940 | |
| 0.35 | +/-0.008 | 2320-2590 | 2320-2590 | 2600-2880 | 2600-2880 | |
| 0.40 | +/-0.008 | 2270-2550 | 2270-2550 | 2560-2830 | 2560-2830 | |
| 0.45 | +/-0.008 | 2240-2500 | 2240-2500 | 2510-2780 | 2510-2780 | |
| 0.50 | +/-0.008 | 2200-2470 | 2200-2470 | 2480-2740 | 2480-2740 | |
| 0.55 | +/-0.008 | 2177-2437 | 2177-2437 | 2447-2707 | 2447-2707 | |
| 0.60 | +/-0.008 | 2140-2400 | 2140-2400 | 2410-2670 | 2410-2670 | |
| 0.65 | +/-0.010 | 2120-2370 | 2120-2370 | 2380-2640 | 2380-2640 | |
| 0.70 | +/-0.010 | 2090-2350 | 2090-2350 | 2360-2610 | 2360-2610 | |
| 0.75 | +/-0.010 | 2070-2320 | 2070-2320 | 2330-2580 | 2330-2580 | |
| 0.80 | +/-0.015 | 2050-2300 | 2050-2300 | 2310-2560 | 2310-2560 | |
| 0.85 | +/-0.015 | 2030-2280 | 2030-2280 | 2290-2530 | 2290-2530 | |
| 0.90 | +/-0.015 | 2021-2260 | 2021-2260 | 2270-2510 | 2270-2510 | |
| 0.95 | +/-0.015 | 2000-2240 | 2000-2240 | 2250-2490 | 2250-2490 | |
| 1.00 | +/-0.015 | 1720-1970 | 1980-2220 | 1980-2220 | 2230-2470 | 2230-2470 |
| 1.05 | +/-0.020 | 1710-1950 | 1960-2200 | 1960-2200 | 2210-2450 | 2210-2450 |
| 1.10 | +/-0.020 | 1690-1940 | 1650-2190 | 1650-2190 | 2200-2430 | 2200-2430 |
| 1.20 | +/-0.020 | 1970-1910 | 1920-2160 | 1920-2160 | 2170-2400 | 2170-2400 |
| 1.30 | +/-0.020 | 1640-1890 | 1900-2130 | 1900-2130 | 2140-2370 | 2140-2370 |
| 1.40 | +/-0.020 | 1620-1860 | 1870-2100 | 1870-2100 | 2100-2340 | 2100-2340 |
| 1.50 | +/-0.020 | 1600-1840 | 1850-2080 | 1850-2080 | 2090-2310 | 2090-2310 |
| 1.60 | +/-0.020 | 1590-1820 | 1830-2050 | 1830-2050 | 2060-2290 | 2060-2290 |
| 1.70 | +/-0.020 | 1570-1800 | 1810-2030 | 1810-2030 | 2040-2260 | 2040-2260 |
| 1.80 | +/-0.025 | 1550-1780 | 1790-2010 | 1790-2010 | 2020-2240 | 2020-2240 |
| 1.90 | +/-0.025 | 1540-1760 | 1770-1990 | 1770-1990 | 2000-2220 | 2000-2220 |
| 2.00 | +/-0.025 | 1520-1750 | 1760-1970 | 1760-1970 | 1980-2200 | 1980-2200 |
| 2.25 | +/-0.025 | 1490-1710 | 1720-1930 | 1720-1930 | 1940-2150 | 1940-2150 |
| 2.50 | +/-0.025 | 1460-1680 | 1690-1970 | 1690-1970 | 1900-2110 | 1900-2110 |
| 2.75 | +/-0.030 | 1435-1650 | 1660-1865 | 1660-1865 | 1875-2085 | 1875-2085 |
| 3.00 | +/-0.030 | 1410-1620 | 1630-1830 | 1630-1830 | 1840-2040 | 1840-2040 |
| 3.25 | +/-0.030 | 1385-1595 | 1605-1830 | 1605-1830 | 1815-2015 | 1815-2015 |
| 3.50 | +/-0.030 | 1360-1570 | 1580-1775 | 1580-1775 | 1785-1980 | 1785-1980 |
| 3.75 | +/-0.030 | 1343-1545 | 1555-1745 | 1555-1745 | 1755-1955 | 1755-1955 |
| 4.00 | +/-0.030 | 1320-1520 | 1530-1730 | 1530-1730 | 1740-1930 | 1740-1930 |
| 4.25 | +/-0.035 | 1310-1500 | 1510-1700 | 1510-1700 | 1710-1900 | 1710-1900 |
| 4.50 | +/-0.035 | 1290-1490 | 1500-1680 | 1500-1680 | 1690-1880 | 1690-1880 |
| 4.75 | +/-0.035 | 1270-1470 | 1480-1670 | 1480-1670 | 1680-1860 | 1680-1860 |
| 5.00 | +/-0.035 | 1260-1450 | 1460-1650 | 1460-1650 | 1660-1840 | 1660-1840 |
| 5.50 | +/-0.040 | 1233-1423 | 1435-1617 | 1435-1617 | 1627-1807 | 1627-1807 |
| 6.00 | +/-0.040 | 1210-1390 | 1400-1580 | 1400-1580 | 1590-1770 | 1590-1770 |
| 6.50 | +/-0.040 | 1180-1370 | 1380-1550 | 1380-1550 | 1560-1740 | 1560-1740 |
| 7.00 | +/-0.040 | 1160-1340 | 1350-1550 | 1350-1550 | 1540-1710 | 1540-1710 |
| 7.50 | +/-0.045 | 1140-1320 | 1330-1500 | 1330-1500 | 1510-1680 | 1510-1680 |
| 8.00 | +/-0.045 | 1120-1300 | 1310-1480 | 1310-1480 | 1490-1660 | 1490-1660 |
| 8.50 | +/-0.045 | 1110-1280 | 1290-1460 | 1290-1460 | 1470-1630 | 1470-1630 |
| 9.00 | +/-0.045 | 1090-1260 | 1270-1440 | 1270-1440 | 1450-1610 | 1450-1610 |
| 9.50 | +/-0.050 | 1070-1250 | 1260-1420 | 1260-1420 | 1430-1590 | 1430-1590 |
| 10.00 | +/-0.050 | 1060-1230 | 1240-1400 | 1240-1400 | 1410-1570 | 1410-1570 |
| 11.00 | +/-0.070 | 1210-1370 | 1210-1370 | 1380-1530 | 1380-1530 | |
| 12.00 | +/-0.080 | 1180-1340 | 1180-1340 | 1350-1500 | 1350-1500 | |
| 13.00 | +/-0.080 | 1160-1310 | 1160-1310 | 1320-1470 | 1320-1470 | |
| 14.00 | +/-0.080 | 1130-1280 | 1130-1280 | 1290-1440 | 1290-1440 | |
| 15.00 | +/-0.090 | 1110-1260 | 1110-1260 | 1270-1410 | 1270-1410 | |
| 16.00 | +/-0.090 | 1090-1230 | 1090-1230 | 1240-1390 | 1240-1390 | |
| 17.00 | +/-0.090 | 1070-1210 | 1070-1210 | 1220-1360 | 1220-1360 | |
| 18.00 | +/-0.090 | 1050-1180 | 1050-1180 | 1200-1340 | 1200-1340 | |
| 19.00 | +/-0.100 | 1030-1170 | 1030-1170 | 1180-1320 | 1180-1320 | |
| 20.00 | +/-0.100 | 1020-1150 | 1020-1150 | 1160-1300 | 1160-1300 | |
Valve spring steel wire according to EN 10270-2
| Designation | Ø (mm) | Fatigue | Tensile strenght |
|---|---|---|---|
| VDC | 0.50 - 10.0 mm | high | low |
| VDCrV | 0.50 - 10.0 mm | high | medium |
| VDSiCr | 0.50 - 10.0 mm | high | high |
| TDC | 0.50 - 10.0 mm | medium | low |
| TDCrV | 0.50 - 10.0 mm | medium | medium |
| TDSiCr | 0.50 - 10.0 mm | medium | high |
| FDC | 0.50 - 17.0 mm | static | low |
| FDCrV | 0.50 - 17.0 mm | static | medium |
| FDSiCr | 0.50 - 17.0 mm | static | high |
Chemical Analysis
| Grade | C (%) | Si (%) | Mn (%) | P max. | S max. | Cu Max. | Cr (%) | V (%) |
|---|---|---|---|---|---|---|---|---|
| VDC | 0.60-0.75 | 0.15-0.30 | 0.50-1.00 | 0.02 | 0.02 | 0.06 | b | 0.15-0.25 |
| VDCrV | 0.62-0.72 | 0.15-0.30 | 0.50-0.90 | 0.025 | 0.02 | 0.06 | 0.40-0.60 | |
| VDSiCr | 0.50-0.60 | 1.20-1.60 | 0.50-0.90 | 0.025 | 0.02 | 0.06 | 0.50-0.80 | |
| TDC | 0.60-0.75 | 0.10-0.35 | 0.50-1.20 | 0.02 | 0.02 | 0.1 | b | 0.15-0.25 |
| TDCrV | 0.62-0.72 | 0.15-0.30 | 0.50-0.90 | 0.025 | 0.02 | 0.1 | 0.40-0.60 | |
| TDSiCr | 0.50-0.60 | 1.20-1.60 | 0.50-0.90 | 0.025 | 0.02 | 0.1 | 0.50-0.80 | |
| FDC | 0.60-0.75 | 0.10-0.35 | 0.50-1.20 | 0.03 | 0.025 | 0.12 | b | 0.15-0.25 |
| FDCrV | 0.62-0.72 | 0.15-0.30 | 0.50-0.90 | 0.03 | 0.025 | 0.12 | 0.40-0.60 | |
| FDSiCr | 0.50-0.60 | 1.20-1.60 | 0.50-0.90 | 0.03 | 0.025 | 0.12 | 0.50-0.80 |
Mechanical Specifications
| Dimension | Tensile Strength / Mpa | |||
|---|---|---|---|---|
| Ø (mm) | Tol. (mm) | TDC/VDC | TDCrV/VDCrV | TDSiCr/VDSiCr |
| d = 0,50 | +/- 0.010 | 1850 to 2000 | 1910 to 2060 | 2080 to 2230 |
| 0,50 < d< 0,60 | +/- 0.010 | 1850 to 2000 | 1910 to 2060 | 2080 to 2230 |
| 0,60 < d< 0,80 | +/- 0.010 | 1850 to 2000 | 1910 to 2060 | 2080 to 2230 |
| 0,80 < d< 1,00 | +/- 0.015 | 1850 to 1950 | 1910 to 2060 | 2080 to 2230 |
| 1,00 < d< 1,30 | +/- 0.020 | 1750 to 1850 | 1860 to 2010 | 2080 to 2230 |
| 1,30 < d< 1,40 | +/- 0.020 | 1700 to 1800 | 1820 to 1970 | 2060 to 2210 |
| 1,40 < d< 1,60 | +/- 0.020 | 1700 to 1800 | 1820 to 1970 | 2060 to 2210 |
| 1,60 < d< 2,00 | +/- 0.025 | 1670 to 1770 | 1770 to 1920 | 2010 to 2160 |
| 2,00 < d< 2,50 | +/- 0.025 | 1630 to 1730 | 1720 to 1860 | 1960 to 2100 |
| 2,50 < d< 2,70 | +/- 0.025 | 1600 to 1700 | 1670 to 1810 | 1910 to 2010 |
| 2,70 < d< 3,00 | +/- 0.030 | 1600 to 1700 | 1670 to 1810 | 1910 to 2010 |
| 3,00 < d< 3,20 | +/- 0.030 | 1570 to 1670 | 1670 to 1770 | 1910 to 2010 |
| 3,20 < d< 3,50 | +/- 0.030 | 1570 to 1670 | 1670 to 1770 | 1910 to 2010 |
| 3,50 < d< 4,00 | +/- 0.030 | 1550 to 1650 | 1620 to 1720 | 1860 to 1960 |
| 4,00 < d< 4,20 | +/- 0.035 | 1550 to 1650 | 1570 to 1670 | 1860 to 1960 |
| 4,20 < d< 4,50 | +/- 0.035 | 1550 to 1650 | 1570 to 1670 | 1860 to 1960 |
| 4,50 < d< 4.70 | +/- 0.035 | 1540 to 1640 | 1570 to 1670 | 1810 to 1910 |
| 4,70 < d< 5,00 | +/- 0.035 | 1540 to 1640 | 1570 to 1670 | 1810 to 1910 |
| 5,00 < d< 5,60 | +/- 0.035 | 1520 to 1620 | 1520 to 1620 | 1810 to 1910 |
| 5,60 < d< 6,00 | +/- 0.040 | 1520 to 1620 | 1520 to 1620 | 1760 to 1860 |
| 6,00 < d< 6,50 | +/- 0.040 | 1470 to 1570 | 1470 to 1570 | 1760 to 1860 |
| 6,50 < d< 7,00 | +/- 0.040 | 1470 to 1570 | 1470 to 1570 | 1710 to 1810 |
| 7,00 < d< 8,00 | +/- 0.045 | 1420 to 1520 | 1420 to 1520 | 1710 to 1810 |
| 8,00 < d< 9,00 | +/- 0.045 | 1390 to 1490 | 1390 to 1490 | 1670 to 1770 |
| 9,00 < d< 10,00 | +/- 0.050 | 1390 to 1490 | 1390 to 1490 | 1670 to 1770 |
Dimension
| Tensile Strength / Mpa | ||||
|---|---|---|---|---|
| >Ø (mm) | > Tol. (mm) | > FDC | > FDCrV | > FDSiCr |
| d = 0,50 | +/- 0.010 | 1900 to 2100 | 2000 to 2200 | 2100 to 2300 |
| 0,50 < d< 0,60 | +/- 0.010 | 1900 to 2100 | 2000 to 2200 | 2100 to 2300 |
| 0,60 < d< 0,80 | +/- 0.010 | 1900 to 2100 | 2000 to 2200 | 2100 to 2300 |
| 0,80 < d< 1,00 | +/- 0.015 | 1860 to 2060 | 1960 to 2160 | 2100 to 2300 |
| 1,00 < d< 1,30 | +/- 0.020 | 1810 to 2010 | 1900 to 2100 | 2070 to 2260 |
| 1,30 < d< 1,40 | +/- 0.020 | 1790 to 1970 | 1870 to 2070 | 2060 to 2250 |
| 1,40 < d< 1,60 | +/- 0.020 | 1760 to 1940 | 1840 to 2030 | 2040 to 2220 |
| 1,60 < d< 2,00 | +/- 0.025 | 1720 to 1890 | 1790 to 1970 | 2000 to 2180 |
| 2,00 < d< 2,50 | +/- 0.025 | 1670 to 1820 | 1750 to 1900 | 1970 to 2140 |
| 2,50 < d< 2,70 | +/- 0.025 | 1640 to 1790 | 1720 to 1870 | 1950 to 2120 |
| 2,70 < d< 3,00 | +/- 0.030 | 1620 to 1770 | 1700 to 1850 | 1930 to 2100 |
| 3,00 < d< 3,20 | +/- 0.030 | 1600 to 1750 | 1680 to 1830 | 1910 to 2080 |
| 3,20 < d< 3,50 | +/- 0.030 | 1580 to 1730 | 1660 to 1810 | 1900 to 2060 |
| 3,50 < d< 4,00 | +/- 0.030 | 1550 to 1700 | 1620 to 1770 | 1870 to 2030 |
| 4,00 < d< 4,20 | +/- 0.035 | 1540 to 1690 | 1610 to 1760 | 1860 to 2020 |
| 4,20 < d< 4,50 | +/- 0.035 | 1520 to 1670 | 1590 to 1740 | 1850 to 2000 |
| 4,50 < d< 4.70 | +/- 0.035 | 1510 to 1600 | 1580 to 1730 | 1840 to 1990 |
| 4,70 < d< 5,00 | +/- 0.035 | 1500 to 1650 | 1560 to 1710 | 1830 to 1980 |
| 5,00 < d< 5,60 | +/- 0.035 | 1470 to 1620 | 1540 to 1690 | 1800 to 1950 |
| 5,60 < d< 6,00 | +/- 0.040 | 1460 to 1610 | 1520 to 1670 | 1780 to 1930 |
| 6,00 < d< 6,50 | +/- 0.040 | 1440 to 1590 | 1510 to 1660 | 1760 to 1910 |
| 6,50 < d< 7,00 | +/- 0.040 | 1430 to 1580 | 1500 to 1650 | 1740 to 1890 |
| 7,00 < d< 8,00 | +/- 0.045 | 1400 to 1550 | 1480 to 1630 | 1710 to 1860 |
| 8,00 < d< 8,50 | +/- 0.045 | 1380 to 1530 | 1470 to 1620 | 1700 to 1850 |
| 8,50 < d< 10,00 | +/- 0.050 | 1360 to 1510 | 1450 to 1600 | 1660 to 1810 |
| 10,00 < d< 12,00 | +/- 0.070 | 1320 to 1470 | 1430 to 1580 | 1620 to 1770 |
| 12,00 < d< 14,00 | +/- 0.080 | 1280 to 1430 | 1420 to 1570 | 1580 to 1730 |
| 14,00 < d< 15,00 | +/- 0.080 | 1270 to 1420 | 1410 to 1560 | 1570 to 1720 |
| 15,00 < d< 17,00 | +/- 0.090 | 1250 to 1400 | 1400 to 1550 |
1550 to 1700 |
Stainless steel spring wire according to EN 10270-3
Stainless spring steel wires are based on austenitic, chromium-nickel-alloyed steels, which are brought to high strength by cold forming. The wire is processed into springs in the spring hard state and then heat treated.
| Size range: | 0.10 - 12.0 mm |
| Surfaces: | bright / phosphated |
| Delivery form: | Rings / Coils / Rods |
| Materials | Short Name | AISI | C (% | Cr (%) | Ni (%) | Mo (%) | Other (%) |
|---|---|---|---|---|---|---|---|
| 1.4301 (1.4307) | X5CrNi 18-10 | 304 (304 L) | ≤ 0,07 (≤ 0,03) | 17,0-19,5 | 8,0-10,5 | ||
| 1.4310 | X10CrNi 18-8 | 301 | 0,05 - 0,15 | 16,0-19,0 | 6,0-9,5 | ≤ 0,80 | |
| 1.4401 | X5CrNiMo 17-12-2 | 316 | ≤ 0,07 | 16,5-18,5 | 10,0-13,0 | 2,0-2,5 | |
| 1.4404 | X2CrNiMo 17-12-2 | 316 L | ≤ 0,03 | 16,5-18,5 | 10,0-13,0 | 2,0-2,5 | |
| 1.4435 | X2CrNiMo 18-14-3 | 316 L | ≤ 0,03 | 17,0-19,0 | 12,5-15,0 | 2,5-3,0 | |
| 1.4441 | X2CrNiMo18-15-3 | 316 LVM | ≤ 0,03 | 17,0-19,0 | 13,0-15,5 | 2,5-3,2 | Si ≤ 1,0 / Mn ≤ 2,0 |
| 1.4539 | X1NiCrMoCu 25-20-5 | 904 L | ≤ 0,02 | 19,0-21,0 | 24,0-26,0 | 4,0-5,0 | Cu 1,2 - 2,0; N ≤ 0,15 |
| 1.4541 | X6CrNiTi 18-10 | 321 | ≤ 0,08 | 17,0-19,0 | 9,0-12,0 | Ti 5xC ≥ 0,7 | |
| 1.4568 | X7CrNiAl17-7 | 631 | ≤ 0,09 | 16,0-18,0 | 6,5-7,75 | Mn ≤ 1.0 / AL 0,75-1,50 | |
| 1.4571 | X6CrNiMoTi 17-12-2 | 316 Ti | ≤ 0,08 | 16,5-18,5 | 10,5-13,5 | 2,0-2,5 | Ti 5xC ≥ 0,7 |
| 1.4841 | X15CrNiSi 25-20 | 314/310 | ≤ 0,20 | 24,0-26,0 | 19,0-22,0 | Si 1,5 - 2,5 |
Mechanical Specifications
| Dimension | Tensile Strength (MPa) min / max plus 15% | ||||
|---|---|---|---|---|---|
| Ø (mm) | Ø Tolerance | 1.4310 (NS) | 1.4310 (HS) | 1.4401 | 1.4568 |
| ≤ 0.2 | +/- 0.005 | 2200 | 2350 | 1725 | 1975 |
| 0.25 | +/- 0.005 | 2200 | 2350 | 1725 | 1975 |
| 0.26 | +/- 0.008 | 2200 | 2350 | 1725 | 1975 |
| 0.30 | +/- 0.008 | 2150 | 2300 | 1700 | 1950 |
| 0.40 | +/- 0.008 | 2150 | 2300 | 1700 | 1950 |
| 0.50 | +/- 0.008 | 2050 | 2200 | 1650 | 1900 |
| 0.65 | +/-0.010 | 2000 | 2150 | 1625 | 1850 |
| 0.70 | +/-0.010 | 1950 | 2100 | 1600 | 1825 |
| 0.80 | +/-0.010 | 1950 | 2100 | 1600 | 1825 |
| 0.90 | +/-0.010 | 1900 | 2050 | 1575 | 1800 |
| 1.00 | +/-0.010 | 1900 | 2050 | 1575 | 1800 |
| 1.25 | +/-0.015 | 1850 | 2000 | 1550 | 1750 |
| 1.50 | +/-0.015 | 1800 | 1950 | 1500 | 1700 |
| 1.75 | +/-0.015 | 1750 | 1900 | 1450 | 1650 |
| 2.00 | +/-0.015 | 1700 | 1850 | 1400 | 1600 |
| 2.50 | +/-0.020 | 1650 | 1750 | 1350 | 1550 |
| 3.00 | +/-0.020 | 1600 | 1700 | 1300 | 1500 |
| 3.50 | +/-0.020 | 1550 | 1650 | 1250 | 1450 |
| 4.25 | +/-0.025 | 1500 | 1600 | 1225 | 1400 |
| 5.00 | +/-0.025 | 1450 | 1550 | 1200 | 1350 |
| 6.00 | +/-0.025 | 1400 | 1500 | 1150 | 1300 |
| 7.00 | +/-0.030 | 1350 | 1450 | 1125 | 1250 |
| 8.50 | +/-0.030 | 1300 | 1400 | 1075 | 1250 |
| 10.00 | +/-0.035 | 1250 | 1350 | 1050 | 1250 |
