Oil Hard Flat Stock, O1, 3/8In Wx18In L MPN:O138388
Oil Hard Flat Stock, O1, 3/8In Wx18In L
This O1 Oil Hard Flat Stock is a precision-ground tool steel square bar ideal for applications requiring high strength and durability. Its oil-hardened finish provides excellent wear resistance and dimensional stability. With a yield strength of 55,000 psi and tensile strength of 95,000 psi, it is suitable for use in high-precision machinery, tooling, and equipment. Its flat, square profile makes it perfect for use in presses, molds, and dies, while its precision-ground finish ensures accurate and repeatable results. Its compact size and lightweight design also make it ideal for use in confined spaces and portable equipment.
Top product features:
- Oil-Hardened for high hardness and wear resistance
- Precision Ground for smooth, accurate finishing
- Heat Treatable for customized hardness levels
Top product applications:
- Machining and tooling applications
- High-precision cutting tools
- Precision instruments and devices
Tool Steel Square Bar, Material Tool Steel, Material Grade O1, Thickness 0.38 in, Thickness Tolerance +/-0.001 in, Overall Length 18 in, Overall Width 3/8 in, Fabrication Hot Rolled, Heat Treatable Heat Treatable, Heat Treatment Oil-Hardened, Mechanical Finish Precision Ground, Yield Strength 55,000 psi, Tensile Strength 95,000 psi, Brinell Hardness 177 BHN, Rockwell Hardness 18 HRC, Standards AISI O-1, ASTM A681-08, FEDERAL QQT 570 REV C, SAE J437, UNS T31501
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 18.00
- Package Width: 0.38
- Package Height: 0.38
- Package Weight: 0.72
- California Prop 65 Warning: WARNING: Cancer - www.P65Warnings.ca.gov
Product info last updated on April 30, 2026 3:01pm UTC
Category: Stainless Steel