What material is 50CRVA
50CRVA spring steel executes GB/T 1222-2007 standard, belongs to spring steel, in the market to 50CRVA round rod, 50CRVA sheet, 50CRVA strip, 50CRVA wire and other supply forms.
As for the characteristics of 50CRVA spring steel itself, its mechanical properties and process properties are still very good, but the welding performance is relatively poor, and the cold deformation plasticity is low. Careful friends should find that 50CRVA steel contains vanadium, because of this, reduce its thermal sensitivity, improve the strength and toughness of the steel, so that it has a high fatigue strength and yield strength.
50CRVA spring steel chemical composition is as follows: carbon C: 0.46 ~ 0.54; Silicon Si: 0.17 ~ 0.37; Manganese Mn: 0.50 ~ 0.80; Sulfur S: ≤0.030; P: ≤0.030; Chromium Cr: 0.80 ~ 1.10; Nickel: ≤0.35; Copper Cu: ≤0.25; Vanadium V: 0.10 ~ 0.20.
The 50CRVA spring steel is compared with the steel numbers of various countries as follows: the corresponding Japanese JIS standard is SUP10 spring steel, the corresponding American ASTM standard steel is G61500 spring steel, and the corresponding German steel is 50CRV4 spring steel. The main use of 50CRVA spring steel is: used as a large section of high-load important springs and operating temperature <300 ℃ valve springs, piston springs, safety valve springs.
