Tool Steel Rectangle Bar, 18" L, 4 1/2" W MPN:12303_18_0
Tool Steel Rectangle Bar, 18" L, 4 1/2" W
This Tool Steel Rectangle Bar is ideal for applications requiring high strength and durability, such as manufacturing tools, dies, and molds. Its O1 grade tool steel is heat treatable and precision ground for a smooth finish, making it suitable for high-precision applications. The bar's dimensions and tolerances ensure precise fitments and minimal waste. With a yield strength of 58,000 psi and tensile strength of 105,000 psi, this tool steel rectangle bar can withstand heavy use and harsh environments, making it a valuable addition to any workshop or manufacturing facility. Perfect for toolmakers, machinists, and engineers.
Top product features:
- Heat Treatable
- Precision Ground
- Oil-Hardened
Top product applications:
- Machining and fabrication of high-wear tools and parts
- Manufacturing of cutting tools and dies
- Construction of high-strength mechanical components
Tool Steel Rectangular Bar, Material Tool Steel, Material Grade O1, Thickness 0.75 in, Thickness Tolerance +/-0.001 in, Overall Length 18 in, Overall Width 4 1/2 in, Heat Treatable Heat Treatable, Heat Treatment Oil-Hardened, Mechanical Finish Precision Ground, Yield Strength 58,000 psi, Tensile Strength 105,000 psi, Brinell Hardness 177 BHN, Rockwell Hardness 88 HRB, Standards ASTM A681, SAE J437, Includes Material Certificate Material Certificate with Lot Number
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 5 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 18.50
- Package Width: 5.00
- Package Height: 1.25
- Package Weight: 17.71
Product info last updated on March 2, 2026 8:05am UTC
Category: Stainless Steel