Martensitic stainless steel 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:

General steels

General martensitic stainless steels

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.

Thermal spray alloys

Martensitic stainless steels for thermal spray

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.