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 - Bar & Tube

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

Related Specifications - Sheet and Plate

AMS 6350
AMS 6345
UNS G41300

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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