40Cr/SAE5140/SCR440 Material Steel Round Bar
40Cr/SAE5140/SCR440 Material Description :
This steel is one of the most widely used steels in machinery manufacturing. After quenching and tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel is good. It can be hardened to Ф28～60mm in water quenching and Ф15～40mm in oil quenching. In addition to quenching and tempering, this steel is also suitable for cyanidation and induction hardening. The cutting performance is better. When the hardness is 174～229HB, the relative machinability is 60%. The steel is suitable for making medium-sized plastic molds.
|Steel Grade||Chemical Composition|
Cut into short length :
We can cut the length from 10mm min for clients , by this way, clients can save time and cost when processing to other products.
TPI Inspection accepted
Category of Steel Round Bar We can provide
|Category||Sizes||China Grade||American Standard||DIN STANDARD|
|Carbon structure steel||16mm-250mm||Q235
|Low alloy high strength structure steel||16mm-250mm||Q345||－||ST52|
|Alloy structure steel||16mm-250mm||40Cr