Location: CHINA, TIANJIN

cold-drawn and oil-tempered spring steel wire.
1.bright surface with oiled,Hot-dipped and electro-galvanized spring wire available. 2. Range of application: (1). mattress spring (2). compression spring (3). extension spring (4). torsion spring (5). mechanical spring (6). wire forms (7). core of controlling cable (8). connecting wire (9). hard needle 3. Specifications: (1). 0.20mm-13.00mm to comply with DIN17223-1-1984-Class B & C (2). 0.20mm-13.00mm to comply with ASTM-A227 grade I and II (5). lightly-oiled or heavily-oiled subject to requirement. (6). Other standards are subject to requirements, such JIS3521,GB4357-89 Oil tempered steel wire 1. 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