4130 Round Bar Stock

Capital Steel & Wire is a leading international supplier of hot rolled 4130 round bar stock. 4130 grade steel has a high chromium and molybdenum content, making 4130 steel ideal for end applications that demand high levels of stress.

We stock 4130 rounds that are often used as forged valve pumps and bodies, forgings in the oil and gas and aerospace industries, as well as many other applications in the defense, agriculture, and automotive industries.

Below are the chemical and mechanical properties of 4130 steel, also known as 4130 chromoly.

4130 Chemical Properties

Carbon, C 0.28-0.33%
Manganese, MN 0.40-0.60%
Silicon, SI 0.15-0.35%
Chromium, CR 0.80-1.10%
Molybdenum, MO 0.15-0.25%

4130 Mechanical Properties

Tensile Strength 97,200 psi
Yield Strength 63,100 psi
Elongation in 2" 25%
Reduction of Area 60%
Brinell Hardness 197 

We also stock 4130 steel in other shapes other than rounds:

To learn about our current 4130 rounds that we have in stock, please contact a Capital Steel & Wire sales representative. You can do this by calling us at 866-773-7800 or by using our Request a Quote form found to your right.

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