4130N Chromoly Steel Plate
Find the right combination Chromoly Sheet for your project
The Chassis Shop is your 4130N steel plate supplier, we offer a large selection of thicknesses, in several convenient pre-cut sizes to meet your project size requirements.
Available Chromoly Plate Thickness:
.063" (1/16 in.)
Weighs 2.57 Lbs. per Square foot
.090" (3/32 in.)
Weighs 3.67 Lbs. per Square foot
.125" (1/8 in.)
Weighs 5.14 Lbs. per Square foot
.190" (3/16 in.)
Weighs 7.75 Lbs. per Square foot
.250" (1/4 in.)
Weighs 10.21 Lbs. per Square Foot

Available Chromoly Plate Sizes:

Chromoly Steel Plate Defined:
This Chromoly flat steel has a smooth surface finish. The primary difference between hot and cold rolled 4130N sheet / plate material is cosmetic, the mechanical strength is very similar.
Our Chromoly sheet and plate is aircraft grade 4130 condition N (normalized), spec AMS-6345-C. This alloy steel is perfect for fabricating high strength custom tabs and brackets.
This alloy material is widely used in aviation and racing because of its strength, weld-ability and ease of fabrication.
Due to how steel plate is produced it is never perfectly flat.
The edges are either sheared or plasma cut, the heat generated by cutting does create a crispy thin layer of hardness. It is recommended to grind off the edge hardness before attempting to cut this material - this will help reduce the potential of prematurely dulling the teeth of your cutting tools.
Note: Cut tolerance on this material is typically + or - 1/4".
Welding should always be performed by a qualified welder.
Complete Your Fabrication Build
Chromoly plate pairs perfectly with these related components from The Chassis Shop:
- Cage Kits & Pre-Bent Chromoly — pre-bent 4130 chromoly tubing for roll cages and chassis builds
- Tube Adapters — weld-in threaded tube ends for suspension and steering links
- Specialty Nuts & Washers — jam nuts, AN washers, and hardware to install fabricated brackets
Welding should always be performed by a qualified welder.









