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40cr round bar

40cr round bar,steel bar 40cr,40cr steel rod is Chromium alloy round steel materials.Hot rolled steel bar 40Cr tolerance in diameter and length,weight shall be comply to specification GB/T 702.

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40Cr round bar chemical composition:

 

Carbon: 0.37 to 0.44 %

Manganese: 0.50 to 0.80 % Max.

Phosphorus: 0.030% Max.

Sulfur: 0.030% Max.

Silicon: 0.17 to 0.37 %

Chromium: 0.80 to 1.10 %

 

Steel bar 40cr shall be treated with Annealed,Normalized or High tempering.

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