50# hot rolled round bars and 50# forged round bars are belong to the high strength carbon structural steel, after quenching,50# hot rolled and forged round bars have high strength and hardness.

50Mn Steel round bar is a kind of high-quality carbon structural steel bar which under GB/T 699-1999 standard. More information about 50Mn steel round bar chemical composition and 50Mn Steel round bars details, please see the following.

The material 45Mn is a kind of high-quality carbon structural steel. 45Mn Chemical composition %: Grade Chemical composition %: C Si Mn S P

45# Hot rolled steel bar, 45# Forged steel bar 45# is under JIS 4051 standard 45# 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 diam

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