Steel Blanks
Steel blanks are the foundation of modern metalworking, offering unmatched versatility across structural, industrial, and artisan applications. Whether you need hot rolled plate for heavy fabrication, cold rolled sheet for precise enclosures, or high carbon bar stock for knife making, steel blanks deliver the strength and workability that professionals demand. Our inventory spans mild steels like A36 and 1018 for general fabrication and welding, through high carbon grades such as 1084 favored by bladesmiths, to premium alloy and tool steels including 4140, D2, and O1 for demanding tooling and wear applications. Every blank is cut to order with tight tolerances, ensuring minimal waste and faster time to finished parts. From hobbyist workshops to production floors, steel blanks remain the most cost-effective starting point for machined components, welded assemblies, and heat-treated tools.
Available Forms
Grade Reference
| Grade | Type | Common Use | Typical Form |
|---|---|---|---|
| A36 | Structural | General fabrication | Plate |
| 1018 | Low Carbon | Machining & welding | Bar |
| 1084 | High Carbon | Knife making | Bar |
| 4140 | Alloy Steel | High-stress parts | Bar |
| D2 | Tool Steel | Dies & cutting tools | Bar |
| O1 | Tool Steel | Knife making & tooling | Bar |
Detailed Specs by Grade & Form
Frequently Asked Questions
What is the difference between hot rolled and cold rolled steel blanks?
Hot rolled steel is formed at high temperatures above 1,700°F, resulting in a rough mill scale surface and looser dimensional tolerances. Cold rolled steel undergoes additional processing at room temperature, producing a smoother finish, tighter tolerances, and slightly higher strength. For applications requiring precise dimensions and a clean surface, such as brackets or enclosures, cold rolled is the better choice. Hot rolled is more economical for structural work where surface finish is less critical.
Which steel grade is best for knife making?
1084 high carbon steel is widely regarded as the best starting point for knife makers due to its simple heat treatment and excellent edge-holding properties. It achieves a working hardness of 60-62 HRC with a straightforward quench-and-temper process that does not require specialized equipment. For makers seeking higher wear resistance, O1 tool steel offers fine grain structure and predictable hardening, while D2 provides semi-stainless properties and superior edge retention at the cost of more difficult grinding.
Can I weld A36 steel blanks without preheating?
Yes, A36 is one of the most weldable structural steels available and typically does not require preheating for material under one inch thick. Its low carbon content of approximately 0.26% makes it compatible with all common welding processes including MIG, TIG, and stick. For thicker sections above one inch or when welding in cold ambient conditions, a preheat of 50-100°F is recommended to reduce the risk of hydrogen-induced cracking.
What tolerances can I expect on steel blanks?
Standard mill tolerances for hot rolled steel plate typically run plus or minus 0.01 to 0.03 inches on thickness depending on the size. Cold rolled sheet offers tighter control, usually within plus or minus 0.005 inches. Laser-cut blanks provide the most precise dimensions, with edge tolerances of plus or minus 0.005 inches and minimal kerf taper. If your project demands tolerances beyond standard mill specs, laser-cut or precision-ground blanks are the recommended option.