Metal powder in martensitic stainless steel

Martensitic stainless steel metal powder

Osprey™ metal powder

Sandvik's standard range of Osprey™ metal powder includes martensitic stainless steel metal powder in grades of ASTM 410 to 440 types. The martensitic stainless steel metal powder is used in processes, such as:

Selected martensitic stainless steels incl. chemical composition (nominal), %
Alloy (UNS)	Description	Fe	C	Cr	Mo	Si	Mn	S	P
410 (S41000)	See below¹⁾	Bal.	0.15	11.5- 13.5	-	1.0	1.0	0.03	0.04
420 (S42000)	See below²⁾	Bal.	Min. 0.15	12-14	-	1.0	1.0	0.03	0.04
440C (S44004)	See below³⁾	Bal.	0.95- 1.20	16.0- 18.0	0.75	1.0	1.0	0.03	0.04
440B (S44003)	See below⁴⁾	Bal.	0.75- 0.95	16.0- 18.0	0.75	1.0	1.0	0.03	0.04

1) General purpose martensitic stainless steel.

2) Carbon increased to improved mechanical properties.

3) Carbon increase for highest hardness and chromium increased for corrosion resistance.

4) Carbon decreased slightly to improve toughness.

Other martensitic stainless steels are also available. Contact us to discuss Sandvik's full range of metal powder alloys.

Gas atomized metal powders suitable for flame spraying or metallizing, without subsequent fusion of the coating. Good surface preparation is fundamental to the success of this process and the application of a bond coat (SB 80) is recommended.

Selected martensitic stainless steels for thermal spray incl. chemical composition (nominal), %
Alloy	Description	Fe	C	Cr	Si	Mn	Ni	Others
SC 35	Wear-resistance martensitic steel	Bal.	0.04	16.0	1.0	1.0	-	-
SC 45	Martensitic stainless steel	Bal.	0.1	16.0	1.0	1.0	-	-
SC 420	13%Cr martensitic steel	Bal.	0.2	13.0	1.0	1.0	-	-

Other martensitic stainless steels for thermal spray are also available. Contact us to discuss Sandvik's full range of metal powder alloys.