0.313" OD x 0.028" Wall x 0.257" ID Alloy Steel Round Tube 4130-Cond. N Seamless MPN:21358_12_0
0.313" OD x 0.028" Wall x 0.257" ID Alloy Steel Round Tube 4130-Cond. N Seamless
This 4130 alloy steel round tube is a versatile and durable material ideal for a variety of applications, including fasteners, gears, and structural frames. Its high yield strength of 63,000 psi and Rockwell hardness of 92 HRB provide excellent mechanical properties, making it suitable for demanding projects. The seamless construction and air-hardened heat treatment ensure consistency and reliability. With a small outside diameter of 0.313in and inside diameter of 0.257in, this tube is perfect for precision work, and its machinability allows for easy fabrication. Its metallic appearance and corrosion-resistant properties make it a great choice for a range of industries.
Top product features:
- Seamless construction provides a consistent internal structure
- Air-hardened heat treatment enhances strength and durability
- Mill finish provides a smooth surface for machining
Top product applications:
- Fasteners
- Gears
- Structural Frames
Alloy Steel Round Tube, Material Alloy Steel, Material Grade 4130, Fabrication Seamless, Heat Treatable Heat Treatable, Heat Treatment Air-Hardened, Mechanical Finish Mill, Inside Diameter 0.257 in, Outside Diameter 5/16 in, Overall Length 12 in, Wall Thickness 0.028 in, Yield Strength 63,000 psi, Machinability Not Rated, Rockwell Hardness 92 HRB, Appearance Metallic, Application Fasteners, Gears, Structural Frames, Brinell Hardness 197 BHN
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 2 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 12.50
- Package Width: 0.81
- Package Height: 0.81
- Package Weight: 0.09
Product info last updated on January 26, 2026 5:09pm UTC
Category: Alloy Steel