1.more than 100 skillful employees including professional technical engineers, having our own cold rolled facilities; first-rate crude materials purchased from ISO certificated enterprise to guarantee superior quality.

2. we have our own complete testing equipments to test material composition and hardness to help customer identify the detailed product information

3. Quality Control: we have professional QC team or you can apply for third inspection

4. Our company lies in Panyu District, Guangzhou city, near Canton Fair.

5. working with powerful shipping companies to promise fast delivery

6. Competitive price, strict quality control, fast shipping, good after sale service

Delivery condition (strip,coil,sheet)

Grade based on DIN Standard

High quality heat treating steel strip, coil, sheet

supply capacity and condition

Hardness<20HRC

Hardness 29-55HRC

annealed

hardened and tempered

thickness

Width

thickness

Width

High carbon steel

CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1

0.15-3.0mm

3-320mm

0.15-2.5mm

3-300mm

Alloy spring steel

50CrV4, 51CrV4, 60Si2Mn

0.15-3.0mm

3-320mm

0.15-2.5mm

3-250mm

Stainless spring steel

3Cr13-6Cr13

0.15-3.0mm

3-320mm

0.15-2.5mm

3-250mm

Edge process

slit edge; both rounded; one side round, one side slit; square etc

Finish surface

polished (blue, yellow, white, grey-blue, black, bright) or Nature etc

Tolerance

thickness +/-0.01mm max; width +/-0.05mm max

Physical property

Tensile strength: 450-1850N/mm2