Raw Materials

At Dtech Springs we are manufacturing springs and wire components with majorly all kinds of raw materials required by our customers. Most common type of raw material used for making springs are Steel Alloys.

Different grades of wire include following materials:
High Carbon Wire, Music Wire, Oil Tempered Wire, Chrome Silicon, Chrome Vanadium, Stainless Steel, Phosphor Bronze.
The raw material is generally chosen depending upon these factors:
Operating Environment, Corrosion possibilities, Operating Temperature, Material tensile strength, Life cycle of the product, Operating Conditions, Thermal Conductivity and Cost Efficiency Magnetic Properties.


Chemical Composition and material equivalents of few commonly used materials:

The material equivalents of High Carbon Spring Steel Wire follow these International Standards: ASTM A 228, UNI-3823 CLASS C, DIN 17223-1- 1.0200, DIN 2076-C, EN10270-1 (SH, DH), JIS 3522 and the chemical composition is:Carbon (C) 0.75 – 1.00, Silicon (Si) 0.15 – 0.35, Manganese (Mn)0.80 Max, Phosphorous (P) 0.03 Max, Sulphur (S) 0.03 Max. The material equivalents of Oil Tempered Alloy Steel follow these International Standards: ASTM A 401, DIN 17223-2- FDSiCr, DIN 17223-2- VDSiCr, EN 10270-2FDSiCr, EN 10270-2 VDSiCr and the chemical composition is:Carbon (C) 0.5 – 0.6, Silicon (Si) 1.20 – 1.6, Manganese (Mn) 0.50 – 0.80, Chromium (Cr) 0.50 – 0.80 The material equivalents of Stainless Steel Wire follow these International Standards: AISI 302, AISI 304, ASTM A 313, DIN 17224, EN 10270-3 and the chemical composition is: Carbon (C) 0.12, Silicon (Si) 1.00 Max., Manganese (Mn) 2.00 Max., Chromium (Cr) 17 – 19, Nickel (Ni) 8 – 10