4130 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 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
0.15
0.35
Cr
0.80
1.10
Mo
0.15
0.25
Typical Mechanical Properties
Annealed
Normalised
Up to 0.062"
0.062" – 0.125"
0.125" – 0.187"
0.187" – 0.249"
0.249" – 0.749"
0.749" – 1.5"
0.2% Proof Stress
MPA
-
-
517
517
517
482
482
482
Tensile Strength
MPA
586
-
655
655
655
620
620
620
Elongation
%
-
-
8
10
12
15
16
18

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