General characteristics of Alloy Steel 4130

AISI 4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. AISI 4130 grade steel has good strength and toughness, weldability and machinability.

AISI 4130 Applications

This low-alloy steel finds many applications as forgings in the aerospace and oil and gas industries as forged valve bodies and pumps, as well as in the automotive, agricultural and defense industries.

Forging Alloy Steel 4130

Type 4130 steel should be forged between 2250 and 1750 º F (1230 and 950 º C.) The lower the finishing temperature from forging, the finer will be the grain size. If the alloy is forged at too low a temperature, there is a risk of the formation of a non-uniform structure in certain areas of the forged part, necessitating a normalizing treatment – prior to further heat treatment – after forging.

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