AISI 4130

Low Alloy

AISI 4130 is a low-alloy steel containing chromium and molybdenum as strengthening agents. Known for its excellent toughness, high strength, and good fatigue resistance, it is widely used in applications requiring high tensile strength, such as in the aerospace, automotive, and oil and gas industries. With a chemical composition of around 0.28-0.33% carbon, 0.8-1.1% chromium, and 0.15-0.25% molybdenum, 4130 offers good weldability and machinability. It is also heat-treatable, which allows further strengthening. Common uses include aircraft components, automotive parts, and structural tubing for various engineering applications.


Equivalent/Similar Standards

StandardMaterial Name
AISI4130
WNR1.7214
1.7218
British AerospaceBS S534
BS S535
Military AMS 6350
UNSG41300
Italy UNI25CrMo4

– Product Datasheet

4130 PDF



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