It is a martensitic stainless steels

 

Composition:

 

%C	≤%Si	≤%Mn	≤%P	≤%S	%Cr	≤%Mo	%Ni	≤%V	Nb	≤% Others
0,08-0.12	0.6	0.5	0.03	0.015	15-16.5	0.3	4-4.5	0.2	0.05-0.15	0.7

 

Hot working:

Forging temperature range: 1200-850℃
 
Note: Heat to 1200 ℃. Do not forge below 850.
 
Heat treatment:

annealing	Hardening temprature
710-730	1030-1050

 

Main application:

Rang of application:  stress corrosion cracking
 
Shape of product:

Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs