Square Steel Plates with Radius Corners – Precision Cut A36 Carbon Steel
JWM Metal Supply offers premium A36 square steel plates with smooth radius corners, precision CNC plasma cut and ready for fabrication. Available in multiple thicknesses and sizes from 4" × 4" to 30" × 30", these plates combine the strength of A36 carbon steel with the clean appearance and improved safety of rounded corners.
Radius corner plates are ideal for projects where sharp corners are unnecessary or undesirable, making them a popular choice for equipment, trailers, machinery, decorative applications, mounting plates, and custom fabrication.
Every plate is cut in our Kansas facility with clean, weld-ready edges and a raw mill finish, ready for welding, drilling, machining, painting, or powder coating.
Available Thicknesses
- 1/16" Steel Square Plates with Radius Corners
- 1/8" Steel Square Plates with Radius Corners
- 3/16" Steel Square Plates with Radius Corners
- 1/4" Steel Square Plates with Radius Corners
Available Sizes
Choose from square plate sizes ranging from:
- 4" × 4"
- 5" × 5"
- 6" × 6"
- Through
- 30" × 30"
Available in multiple thicknesses to meet the needs of fabrication shops, manufacturers, contractors, and DIY builders.
Features
- Premium ASTM A36 Low Carbon Steel
- Smooth Radius (Rounded) Corners
- Precision CNC Plasma Cut
- Sizes from 4" × 4" to 30" × 30"
- Multiple Thickness Options
- Clean, Weld-Ready Edges
- Raw Mill Finish
- Excellent Weldability
- Easy to Drill and Machine
- Made in the USA
- Always Fast & Free Shipping
- Ships in 1–5 Business Days
Common Applications
- Mounting Plates
- Base Plates
- Trailer Fabrication
- Machinery Components
- Structural Reinforcement
- Equipment Repair
- Decorative Metal Projects
- Agricultural Equipment
- Industrial Fabrication
- DIY Metalworking
Why Choose JWM Metal Supply?
- Precision Cut in Kansas
- Premium American Steel
- No Minimum Order
- Fast Turnaround
- Always Fast & Free Shipping
- Ships in 1–5 Business Days
- Bulk Pricing Available
- Family-Owned Fabrication Shop
Frequently Asked Questions
Why choose radius corner plates?
Radius corners provide a cleaner appearance, eliminate sharp edges, improve handling, and are ideal for projects where safety and aesthetics are important.
What material are these plates made from?
All plates are precision cut from premium ASTM A36 low carbon steel.
Can these plates be welded?
Yes. A36 steel offers excellent weldability using MIG, TIG, or Stick welding.
Can I drill or machine these plates?
Absolutely. These plates are easy to drill, machine, and fabricate using standard metalworking tools.
What finish do the plates have?
All plates are supplied with a raw mill finish and may contain light mill scale or surface discoloration typical of carbon steel.
