Chemical composition (%): Carbon C: {{0}},80 ~ 0,90 (Allowable deviation: ±{{1{{12} }}},01) Silicon Si: 0,2{{20}} ~ 0,45 (Permissible deviation: ±{{3{{36 }}}},05) Manganese Mn: 0.15 ~ 0.40 (Allowable deviation: +0.04) Sulfur S: Less than or equal to 0.030 Phosphorus P: Less than or equal to 0.030 Chromium Cr: 3.80 ~ 4.40 (Permissible deviation: ±0.05) Nickel Ni. Allowable residual content Less than or equal to 0.30 Cu: Allowable residual content Less than or equal to 0.25 V: 1.75 ~ 2.20 (Permissible deviation: ± 0.05) Molybdenum Mo: 4.50 ~ 5 .50 (Allowable deviation: size Less than or equal to 6,± 0.05.)
Tamaño >6,±0,10)Tungsten W : 5,50-6,75(Allowable deviation: Size Less than or equal to 10,±0.10;
(Desviación admisible: tamaño ≤10,±0,10; tamaño >10,±0.20) Application: Suitable for making strong and wear-resistant cutting dies, advanced asarum dies, screw dies, tools requiring hardness and complicated shapes, milling cutters, drill bits, etc. .
