General Introduction: All raw material is procured from BAO STEEL, the most guaranteed and biggest manufacturer for alloy wire rod in China. State-of-the-art and well-developed technique as well as leading edged systematical processing line have brought guarantee to quality and confidence to our partners. From wire drawing to heating furnace, all-time temperature supervision automatically by sensoring device, oil-tempering, winding, stress relief, packaging. All these procedures are precisely controlled.


2. Main range of applications:

(1). Suspension spring for vechiles

(2). Valve spring

(3). Mechanical spring for important usage


3. Material available: (1) SAE9254-55SiCr

(2) 60Si2Mn

(3) SAE6150-50CrV

(4) 65Mn

(5) High-carbon spring steel for VD,FD, ASTM-A229 grade I

4. Specifications: 1.80mm-15.00mm to comply with standards DIN17223-2-1990, ASTM-A229, 230, 231, 232, 401