Steel 4130 View AMS Numbers >
4130 is a Chromium-Molybdenum alloy steel. It is one of the most used aircraft steels because of 4130’s ease of manufacturing and weldability. It is also known for its hardenability, strength and ductility. If additional abrasion and wear resistance are needed this material can be provided in a nitrided condition.
Chemical Properties
Element | min | max |
Carbon | 0.28 | 0.33 |
Manganese | 0.40 | 0.60 |
Silicon | 0.15 | 0.35 |
Phosphorus | — | 0.025 |
Sulfur | — | 0.025 |
Chromium | 0.80 | 1.10 |
Molybdenum | 0.15 | 0.25 |
Nickel | — | 0.25 |
Copper | — | 0.35 |
Mechanical Properties, Longitudinal , Minimum (Hardened and Tempered)
Property | Value |
Tensile strength | 125 ksi |
Yield strength at 0.2% Offset | 100 ksi |
Elongation in 4D | 17% |
Reduction of Area | 55% |
Select AMS Number:
AMS Number | Alloy | Type | UNS | Cross Ref. Spec | Misc./Shape | |
---|---|---|---|---|---|---|
AMS 6345 Plate
Currently Out Of Stock |
4130 | Steel | G41300 | - | Plate |
![]() |
AMS 6345 Sheet
Currently Out Of Stock |
4130 | Steel | G41300 | - | Sheet |
![]() |
AMS 6345 Strip
Currently Out Of Stock |
4130 | Steel | G41300 | - | Strip |
![]() |
AMS 6346 Currently Out Of Stock |
4130 | Steel | G41300 | - | Bar |
![]() |
AMS 6348 Currently Out Of Stock |
4130 | Steel | G41300 | AMS-S-6758 | Bar |
![]() |
AMS 6350 Plate
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-18729 | Plate |
![]() |
AMS 6350 Sheet
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-18729 | Sheet |
![]() |
AMS 6350 Strip
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-18729 | Strip |
![]() |
AMS 6351 Plate
Currently Out Of Stock |
4130 | Steel | G41300 | - | Plate |
![]() |
AMS 6351 Sheet
Currently Out Of Stock |
4130 | Steel | G41300 | - | Sheet |
![]() |
AMS 6351 Strip
Currently Out Of Stock |
4130 | Steel | G41300 | - | Strip |
![]() |
AMS 6360 Currently Out Of Stock |
4130 | Steel | G41300 | MIL-T-6736 | Tubing |
![]() |
AMS 6361 Currently Out Of Stock |
4130 | Steel | G41300 | - | Tubing |
![]() |
AMS 6362 Currently Out Of Stock |
4130 | Steel | G41300 | - | Tubing |
![]() |
AMS 6370 Bar
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-6758 | Bar |
![]() |
AMS 6370 Forging
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-6758 | Forging |
![]() |
AMS 6370 Ring
Currently Out Of Stock |
4130 | Steel | G41300 | MIL-S-6758 | Ring |
![]() |
AMS 6371 Currently Out Of Stock |
4130 | Steel | G41300 | MIL-T-6736 | Tubing |
![]() |
AMS 6373 Currently Out Of Stock |
4130 | Steel | G41300 | MIL-T-6736 | Tubing |
![]() |
AMS 6374 Round
Currently Out Of Stock |
4130 | Steel | G41300 | - | Round |
![]() |
AMS 6374 Tubing
Currently Out Of Stock |
4130 | Steel | G41300 | - | Tubing |
![]() |
AMS 6528 Currently Out Of Stock |
4130 | Steel | G41300 | - | Bar |
![]() |
AMS S 18729 Plate
Currently Out Of Stock |
4130 | Steel | - | MIL-S-18729C | Plate |
![]() |
AMS S 18729 Sheet
Currently Out Of Stock |
4130 | Steel | - | MIL-S-18729C | Sheet |
![]() |
AMS S 18729 Strip
Currently Out Of Stock |
4130 | Steel | - | MIL-S-18729C | Strip |
![]() |
AMS T 6736A Currently Out Of Stock |
4130 | Steel | - | MIL-T-6736B | Tubing |
![]() |