40cr chemical composition, material properties

40Cr is a commonly used alloy steel with good strength and toughness properties. Here are the typical chemical composition and material properties of 40Cr:

Chemical Composition (Percentage):

Carbon (C): 0.37-0.44%

Silicon (Si): 0.17-0.37%

Manganese (Mn): 0.50-0.80%

Chromium (Cr): 0.80-1.10%

Phosphorus (P): ≤0.035%

Sulfur (S): ≤0.035%

Material Properties:

Tensile Strength: 1080-1280 MPa

Yield Strength: ≥785 MPa

Elongation: ≥9%

Reduction in Area: ≥45%

Hardness (HB): 217-241 HB

These values represent the general range for 40Cr, but they can vary depending on the specific manufacturing standards and heat treatment processes applied to the steel. It's always recommended to refer to the relevant material specifications or consult with the manufacturer for precise information regarding your particular application.