JIS SUP10/ DIN 51CrV4 FORGED SPRING STEEL BAR is a high-class spring steel with good mechanical properties and processing properties. The adding of vanadium decrease the superheated susceptivity and improve the strength and toughness.
|Standard||Grade||Chemical composition (%)|
Forged steel round bar: dia100mm-dia1500mm
Forged flat bar: thickness20mm-400mm, width80mm-1000mm
Forged steel block: 100mm*100mm-1000mm*1000mm
Available Heat Treatment
Quenching temperature: 840℃-870℃, oil cooling
Tempering temperature: 470℃-540℃
Leaf spring and spiral spring with large diameter, valve spring, injector spring and air cylinder expansion ring under 300℃.
Forged, black surface/ turned surface with customers’ required heat treatment