Oiling and tempering spring steel wire

1.Material: 70# or 72B 2.Oli hardened and tempered spring steel wire 3.Wire diameter: 5mm to 20mm

1.Material: 70# or 72B

2.wire diameter:5mm to 20mm

3.We are the professional spring manufacturer in China.So we are confident with our quality of spring steel wire.

4.Used for  various automotive springs.

5.Oli hardened and tempered spring steel wire

6.High tensile strength, range from 1500 MPA to 1520 MPA.

7. Area reduce between 51 and 52.

8.We export to many countries like Malaysia,Korea, USA.

Making process:

1. Acid pickle and phosphating

2.Drawing to change wire dia

3.Oil quenching and tempering

4. Packaging

Pictures about loading to container

Mill Certificate about some specification

Oiling and tempering spring steel wire