C60D Bright Steel Coil Coated Surface for Engineering

C60D Bright Steel Coil Coated Surface for Engineering 

1.Brief introduction:

2.Type:
According to tensile strength: 
Low tensile strength(L)
Medium tensile strength (M)
High tensile strength (H)
According to spring load:
Static load (S)
Dynamic load (D)

3. Surafce condition: 
Smooth steel wire and coated steel wire.
4. Circle shape of wire:
The steel wire should have a uniform and regular loop shape. After the lashing wire is cut, the free circle diameter of the steel wire should not be less than the coil diameter of the steel wire, and the ring shape enlargement phenomenon is allowed, but the enlargement degree should be roughly uniform in the same coil and uniform batch of steel wires. 
5. Surface quality:
The surface of the steel wire should be smooth, and there should be no surface defects such as pull marks, tears, rust, etc. that have obvious adverse effects on the use of the steel wire.

6. f- circle distance, (mm);

D- free circle diameter, ( mm);

d- the nominal diameter of the steel wire, (mm);

7. Bending test:

A steel wire with a nominal diameter of approximately 3.00mm can be subjected to a bending test.

When the steel wire is bent 180° around a mandrel into a U shape, there should be no traces of cracks.

8.Picture show: