| Equivalent grades |
GB |
DIN |
AISI |
JIS |
- |
| - |
1.2767 |
6F7 |
SNCM2 |
- |
| Chemical Composition |
C |
Si |
Mn |
Cr |
P |
S |
Mo |
Ni |
- |
| 0.40-0.50 |
0.15-0.30 |
0.15-0.45 |
1.20-1.50 |
≤0.03 |
≤0.03 |
0.15-0.35 |
3.80-4.30 |
- |
| Available size |
Round Bar |
Diameter |
Length |
| 60-800mm |
2000-6000mm |
| Flat Bar |
Thickness |
Width |
Length |
| 25-400mm |
200-800mm |
2000-6000mm |
| Surface condition |
Black surface/ Grinded/ Machined |
| Annealed hardness |
265～310HBS |
| Characteristics |
extremely wear resistance,high impact and compression strength
high polishability, suitable for polishing, texturing
repeated impacts and strong pressures in service
high level hardenability and toughness, fully hardenable in all dimensions |
| Applications |
highly stressed pressing and injection moulds, coining tools
stamping dies, hobbing tools, cold shear blades for thickest
cutting materials, dies and punches for horizontal forging machines, rolls
for hot work bending machines, mandrel holders for extrusion mandrels, forging
dies, industrial blades and abrasive stress, plastic moulds |
| Heat Treatment |
Harden from a temperature of 840-870oC followed by oilair or warm bath (180-220oC)
quenching. Hardness after quenching is 56 HRC. |
 |
|
