Material Name: Alloy tool steel 

 Grade: 45WCrV7 

 Standard: GB / T 1299-1985 

 ● Features and Scope: 

 Shock-resistant tool steel alloy tool steel, composition, performance and 4CrW2Si similar. Alloy tool steel as cold steel when used as a manual and pneumatic chisel, air hammer tool, rivet tool, and the trimming of cold blanking die, and long-term work of carpentry tools. Alloy tool steel for hot processing of steel, the tool can be used as punching or piercing shear modulus, forging dies, fusible alloy die-casting mold, and hot and cold cutting metal with a cutting blade, etc. 

 ● Chemical Composition: 

 Carbon C: 0.45 ~ 0.55 ' 

 Si Si: 0.50 ~ 0.80 

 Manganese Mn: ≤ 0.40 

 S S: ≤ 0.030 

 Phosphorus P: ≤ 0.030 

 Chromium Cr: 1.00 ~ 1.30 

 Ni: to allow the residual content of ≤ 0.25 

 Copper Cu: ≤ 0.30 to allow the residual content 

 Tungsten W: 2.00 ~ 2.50 

 ● Mechanical Properties: 

 Hardness: Annealed, 255 ~ 207HB, indentation diameter of 3.8 ~ 4.2mm; quenching, ≥ 55HRC 

 ● Heat treatment and microstructure specifications: 

 Heat treatment specifications: the sample quenching 860 ~ 900 ℃, oil-cooling. 

 ● Delivery status: Delivery of steel in the annealed condition 

 The company 45WCrV7, quality assurance, welcome to consult the discussion.