Resource Data

4130 Chrome Moly Tube Specifications

4130 Cut Out For Website Pdf

4130, also known as Chrome Moly (short for chromium molybdenum) is a general-purpose steel that has been widely used by the motorsports industry for years. Weldability, fabrication, and mild hardenability make it a popular choice in all forms – tube, bar, sheet, and plate.

A.E.D. stocks 4130 round tube from .250” to 2.50” in a variety of wall thickness.


Typical Mechanical Properties

Condition N Tensile Strength min. Yield Strength min. Elongation min. % Diameter Tolerance Wall Thickness Tolerance
Up to .035 incl. 95,000 psi 75,000 psi 10% +/- .005" +/- 10%
Over .035 to .188 incl. 95,000 psi 75,000 psi 12% +/- .005" +/- 10%
Over .188 90,000 psi 70,000 psi 15% +/- .005" +/- 10%

Chemical Analysis - Percent by Weight

C Mn P S Si Cr Ni Mo Cu
.28 to .33 .40 to .60 .025 (max) .025 (max) .15 to .35 .80 to 1.0 .25 (max) .15 to .25 .35 (max)

4130 tube is produced in “random lengths” that can range between 17 to 24 feet long.


A.E.D. Stenciled 4130 Chrome Moly Tubes (SKU #'s ending with AED)

We stock over 40 sizes produced by Webco Industries, specifically for our needs, stenciled with A.E.D Motorsport Products. Over the years, we have adjusted the manufacturing of our tubes to offer benefits specific to its application. We require greater dimensional consistency for ease of use and fabrication, improved mechanical properties for fatigue and impact toughness and surface critical production processes to improve weldability and finished appearance.