AMS 6512 - Maraging 250 Steel

Typical Applications

Driveshafts

Gears

Fasteners

Landing and Takeoff gear

Missile and ejector systems

Maraging 250 is an 18% nickel, cobalt strengthened steel.

It is a very high strength material reaching 1800 MPa after heat treatment, has very good toughness with excellent transverse properties. It is produced by Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR).

Related Products

Technical specification

Related Specifications

AMS 6512
BS S162
DTD 5212
G110
Mil-S-46850D
W.Nr 1.6359

Specific Gravity

8.02 g/cm3

Chemical Composition (WT %)

 
Min  
Max  
C  
-  
0.03  
Si  
-  
0.10  
Mn  
-  
0.10  
P  
-  
0.010  
S  
-  
0.15  
AI  
0.05  
0.005  
B  
-  
0.005  
Ca  
-  
0.05  
Co  
7.0  
8.5  
Cr  
-  
0.5  
Mo  
4.6  
5.2  
Ni  
17.0  
19.00  
Ti  
0.30  
0.50  
Zr  
-  
0.02  
Cu  
-  
0.05  
Fe  
Bal  
-  

Typical Mechanical Properties after heat treatment

 
 
Longitudinal
Transverse
0.2% Proof Stress  
MPA  
Min  
1700
1700
Tensile Strength  
MPA  
Min  
1800
1800
Tensile Strength  
MPA  
Max  
2000
2000
Elongation  
&  
Min  
8
5
Reduction of area  
%  
Mon  
40
25
Impacts  
(Izod)  
ft lbf  
18
8

Hardness after Heat Treatment

520-620 HV  
 

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