Chemical composition

Silicon manganese: 0.10-0.30%: 0.40-1.20%: 0.45-0.85% = 0.04% carbon sulfur phosphorus is less than or equal to 0.04% production process

By drawing, cutting, hardening process refined, in strict accordance with the German VDFI8001/2009 and American SAEJ441, AMS2431 standard production, the product of uniform particle size, product hardness are respectively HV420-520, HV520-600, HV610-670, HV670-740 and HV740-800; the product particle size from 0.2mm-2.5mm to G1, G2 cylindrical shape respectively, G3, service life of 3500 times to 9600 cycles.