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Stainless Steel Spring Wire

 Stainless Steel Spring Wire
 Stainless Steel Spring Wire

Key Points of the Stainless Steel Spring Wire
All of the stainless steel spring wire produced by Fasten is manufactured according to EN-10270-3, ASTM, JIS WPB, JIS WPA, and WPC specifications. We have the production capabilities to provide customers with custom specifications.

Applications
Springs are most commonly produced from 302/304 stainless steel wire due to its excellent mechanical properties and corrosion resistance. Type 316 is recommended for springs with additional requirements in regards to corrosive exposure and because of its non-magnetic properties. The mechanical properties of this type of steel are not as strong or durable as 302/304 however. Type 631J1/631 steel is used for heat resistant spring production and high tensile strength after they undergo a heat treatment process.

Technical Parameters
Size (mm) Tensile Strength (T/S)
JIS-WPA ASTM JIS-WPB ASTM JIS-WPC ASTM
SUS-302
SUS-304
SUS-316
316 SUS-302
SUS-304
302 Class 304 SUS-631J1 631
COLD DRAWN
CONDITION
0.08-0.20 1650-1900 1690-1895 2150-2400 2240-2450 1950-2200
0.23-0.40 1600-1850 1655-1860 2050-2300 2205-2330 1930-2180 2035
0.45-0.60 1600-1850 1620-1825 1950-2200 2070-2220 1850-2100 1965
0.60-1.00 1530-1780 1520-1825 1850-2100 1995-2095 1800-2050 1895
1.20-1.40 1450-1700 1550-1760 1750-2000 1840-2020 1700-1950 1825
1.60-2.00 1400-1650 1480-1655 1650-1900 1735-1895 1600-1850 1770
2.30-2.60 1320-1570 1380-1585 1550-1800 1640-1805 1500-1750 1670
2.90-4.00 1230-1480 1275-1450 1450-1700 1530-1620 1400-1650 1625
4.50-6.00 1100-1350 1105-1275 1350-1600 1335-1475 1300-1550 1545
Product Grade Chemical Composition (%)
AISI SUS C Si Mn P S Ni Cr Other
302 302 0.15MAX 1 2 0.045 0.03 8-10 17-19 -
304 304 0.08MAX 1 2 0.045 0.03 8-10.5 18-20 -
316 316 0.08MAX 1 2 0.045 0.03 10-14 16-18 Mo: 2-3
613 631J1 0.09MAX 1 1 0.04 0.03 6.5-8.5 16-18 Al:0.75-1.5
0.15MAX 1 7.5-10 0.06 0.03 4.0-6.0 17.0-19.0 N: ≤0.25