Maraging 350 - AMS 6515

Typical Applications

Landing gear systems

Gears

Fasteners

Missile and Rocket motor cases

Torsion springs

Industrial Cutters

Maraging 350 (also known as Vascomax® 350, AMS 6515) is an 18% nickel, cobalt strengthened steel.

It is a very high strength material reaching a UTS of 2310 MPA after heat treatment. It is produced by Vacuum Induction Melting (VIM) followed by Vacuum Arc Remelting (VAR).

Related Products

Technical specification

Related Specifications

AMS 6515
UNS K93160
Mil-S-46850D

Specific Gravity

8.0 g/cm3

Chemical Composition (WT %)

 
Min  
Max  
C  
-  
0.03  
Si  
-  
0.10  
Mn  
-  
0.10  
P  
-  
0.010  
S  
-  
0.010  
AI  
0.05  
0.15  
Co  
11.5  
12.5  
Ni  
18.0  
19.00  
Mo  
4.6  
5.20  
Ti  
1.30  
1.60  
Cr  
-  
0.50  
Cu  
-  
0.50  

Typical Mechanical Properties after heat treatment

0.2% Proof Stress  
MPA  
2242  
Tensile Strength  
MPA  
2310  
Elongation  
%  
6  
Reduction of area  
%  
25  
Hardness  
HRC  
53  

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