40CrV Steel round bar is similar with 40Cr Steel round bar, just with the metal vanadium (V). 40CrV Steel round bar comprehensive performance is better than 40cr Steel round bar.
40Mn Hot rolled steel bar, 40Mn Forged steel bar 40Mn is under JIS 4051 standard 40Mn features 1.good hardness 2.good toughness 3.good plasticity 4.good strength Common size for steel bar: Common diameter for hot rolled steel bar: 8mm to 70mm Common
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