> 4130 Aircraft Quality Alloy Steel Sheet
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AMS6350 / AMS6351 Annealed AMS6345 Normalized or Otherwise Heat Treated

4130 (E4130) Aircraft Quality Alloy Steel Sheet

AMS6345 / AMS6350 / AMS6351

Wilco Inc. is one of the largest stocking distributors of 4130 Aircraft Quality Alloy Steel Sheet in North America.

We strive to serve you fast and accurately from our location, in the middle of the United States, in Wichita Kansas.

Since we stock it with no minimum purchase requirements this allows you to make your parts, and a profit without investing a lot of money in inventory, or time waiting for delivery.

All of our material is Domestic and therefore DFARS compliant.

With over 150 tons of inventory on hand we can generally ship same day if the order is placed before noon CST.

We stock both Annealed and Normalized conditions from .025" - .250” thick in multiple cut sizes. All of the 18” x 72” size sheets and smaller are within the size limits to ship on both UPS & Fed Ex which means our sheets can be sent overnight if required.

When you have requirements for this material please remember Wilco and give us an opportunity to serve you.

Please feel free to send us over your request for quotation either by phone, fax, or email.

Phone: (800) 767-7593

Fax: (316) 943-9664

Email: sales@wilco.to

General Characteristics of 4130

4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. It offers a great mix of strength and toughness. The machinability and weldability of 4130 is good. The alloy may be welded using any commercial method. The material may require a post-weld stress relief heat treatment in certain instances.

What is the main difference Normalized and Annealed?

Normalized material has a higher tensile strength than Annealed material. So because of this Annealed will be easier to form than Normalized.

Chemistry of 4130 Grade






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4130 Alloy Steel is sometimes referred to as Chromoly or Chrome Moly?

The chemistry of 4130 includes both Chrome and Molybdenum. This is where the names Chromoly and Chrome Moly came from.

What does the 30 in 4130 stand for?

The 30 is indicative of the amount of carbon that is put into this grade of steel.