4130 Alloy Steel Bars And Tubing

Typical Applications

Aircraft engine mounts

Aircraft seating

Roll Cages

Bicycle frames

Well head components

4130 (AMS 6360, AMS 6370, AMS 6371, AMS 6348) is a through hardening low alloy steel containing molybdenum and chromium as strengthening agents. 4130 responds well to nitriding for very good wear and abrasion resistance.

Related Products

Technical specification

Related Specifications

AMS 6360
AMS 6370
AMS 6371
AMS 6348
UNS G41300
Mil S 6758
Mil T 67366

Specific Gravity

7.8 g/cm3

Chemical Composition (WT %)

 
Min  
Max  
C  
0.28  
0.33  
Mn  
0.40  
0.60  
P  
-  
0.025  
S  
-  
0.025  
Si  
1.5  
1.8  
Cr  
0.80  
1.10  
Ni  
-  
0.25  
Mo  
0.15  
0.25  

Typical Mechanical Properties

 
 
Tube  
Bar (Hardened and Tempered)
0.2% Proof Stress  
MPA  
482  
517 (min)
Tensile Strength  
MPA  
655  
655(Min)
Elongation  
%  
12  
20 (min)
Reduction of area  
%  
-  
40 (Min)
Hardness  
HRC  
-  
18-22

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