ITEM:

HSS CODE: W9Mo3Cr4V (W9)

Chemical compositons(%): 

C                   Si                   Mn               W                  Mo             Cr                        V                     Others

0.77-0.87   0.20-0.40      0.20-0.40       8.50-9.50       2.70-3.30    3.80-4.40        1.30-1.70

International Code:  

ROCT: P9M3

China：W9

Density:  Annealed(g/cm) 8.23

Heat treatment:

Starting: 1100 Finishing:900

Usage:It’s a subsidiary of W18 Cr4 and W6Mo5Cr4V2.Suitable for making all kinds of tools.

Anneal temperature （℃) 840-860

Stress relief Temperature（℃）:600-650

Quench temperature （℃）:1210-1230

Coolant media of quench : salt bath  at 600℃,or Oil  cool or air cool

Normal temperature of temper（℃）: 540-560

Quench and temper HRC: 63-66

 Bending Strength(Mpa): 4000-4500

Impact Toughness(MJ/㎡): 0.35-0.40

 HRC at 600℃(HRC):

Character: Its a newly developed general used HSS of W-Mo series.

The performance equal to W18Cr4V(T1) and W6Mo5Cr4V2(M2) Good Grandability and Good hot reforming.Easy to forge and Roll.But its comprehensive use property superior than T1 and HSS-M2.