|
Standard |
1.2581/H21/SKD5/3CR2W8V |
|---|---|
|
Size Mm |
Round Bar dia 10-400mm Flat Bar:thickness:20-28 width:80-300 thickness:30-40 width:80-450 thickness:50-300 width:80-610 |
|
Description |
This steel for hardening in oil and possibly in air with very good hardenability, very high firmness during the heat and resistance to the tempering, high resistance to the hot tempering and good toughness. Further the steel has a lower resistance to tearing of thermal fatigue and higher sensitivity to quick changes of temperature. The steel is not appropriate for tools cooled by water. It is well-workable during the heat and well-workable in the soft-annealed state. |
|
Chemical Composition |
C: 0.25-0.35%; Si:0.15-0.30%; Mn: 0.20-0.40%; Cr: 2.50-2.80%; W: 8.00-9.00%; V: 0.30-0.40%; P,S: 0,03% max |
