RAW MATERIALS

The raw materials used in the manufacturing of a product depend on two factors: the sustainability and the application. We believe in using materials that reduce environmental threat and meet the criteria of the customers. 

We, at Accurate, ensure that above-mentioned materials used in the manufacturing of various products are of IS Standard.

The constituent materials for spring manufacturing can be broadly categorized into 5 groups – high carbon spring steel, alloy spring steel, stainless steel, phosphor bronze, and copper base alloys.

Spring steel wire (IS 4454)

There are basic 4 grades given to steel wire used for making springs.

  1. Grade 2 &3 are most commonly used in India for making springs.
  2. Grade 4 has very high accuracy in physical &chemical parameters.

Valve spring wires

  1. Automotive applications for engine valves, pump, etc. where high fatigue life is required.

Alloyed steel wire-(Silicon Chrome)

  1. Used for springs which are subject to “high static and dynamic loading” Raw Materials

Stainless steel wire-AISI 302/304/

  1. Have less magnetic properties
  2. Resistant to corrosion
  3. High elasticity
  4. Resistant to heat
  5. Used in electrical and related industries

Copper base alloy – used in high electrical & thermal conductivity

  1. Non-magnetic
  2. Good atmosphere resistance is required
  3. Phosphor bronze wires due to high tensile strength are most widely used copper alloys for manufacturing springs
  4. Resistant to heat
  5. The bare copper wire is coated with polyester enamel to make it non-conductive