Skip to content

4 in. x 3 in. x 3/8 in. x 10 ft. Steel Angle

Structural & Finish Materials
Job-Site Delivery & Support
Local Inventory. Real Operations.
B2B Financing Available

Hot-rolled steel angle with unequal legs, an L-shaped structural section used wherever a stiff, weldable corner member is needed. The two legs meet at a right angle with a small radius at the heel, giving the bar far more rigidity than flat stock of the same thickness.

Angle is supplied as mill-finish carbon steel, unpainted, and takes drilling, punching, torch cutting and arc welding with ordinary shop equipment. Because it is left bare it will develop surface rust on exposure and is normally primed, painted or galvanized after fabrication if it will be left outdoors.

The unequal-leg profile lets the wider leg carry the bearing or bolting surface while the narrower leg is fixed to the adjoining member, which is useful for lintels, shelf angles and edge trim conditions.

Key Features

  • Unequal-leg L-section hot-rolled carbon steel angle
  • Legs meet at 90 degrees with a radiused heel for stiffness along the length
  • Mill finish, uncoated, ready for paint, primer or galvanizing after fabrication
  • Weldable, drillable and punchable with standard fabrication tools
  • Uniform thickness through both legs for predictable cutting and fit-up
  • Supplied in cut lengths, sold individually

Applications

  • Bracing, framing and bracket fabrication in steel assemblies
  • Shelf angles and edge angles supporting masonry or slab edges
  • Lintels over openings where an engineer has specified the section
  • Equipment stands, mezzanine and platform framing
  • Corner protection and edge reinforcement on concrete curbs and openings
  • Weld-up repairs and general shop and field metalwork

Product Details

  • Type: Steel Angle, unequal leg
  • Material: Carbon steel
  • Finish: Mill finish, uncoated
  • Leg Dimensions: 4 in. x 3 in.
  • Thickness: 3/8 in.
  • Length: 10 ft.
  • Approximate Weight: 85 lb.
  • Sold By: Each

Specifications

Dimensions 4" x 3" x 10' x 3/8"
Material Steel
Weight 85 LB
  1. Submit a quote request for this product
  2. Our team reviews availability and pricing
  3. We follow up with a detailed quote and next steps

Pricing, availability, and lead times may vary by product and quantity.

  • Local pickup options available
  • Delivery available depending on product and location
  • Lead times vary based on availability and order size

Need Help?

Have questions or need help selecting the right materials?

Our team is happy to help.

Pickup & Local Delivery Available

Call our team (718) 461-8383 or visit our showroom at 31-31 123rd Street, Flushing, NY.

Specifications

S-Beam Size Chart

Review the available standard S-beam sizes below. Open the chart to compare key dimensions before requesting your quote.

Questions about sizing?

Not sure which size you need?

Contact Us
View S-beam size chart 28 standard sizes
Designation (in x lbs/ft) Area (in²) Depth (in) Width (in) Flange Thickness (in) Web Thickness (in)
S 24 x 12135.624.58.051.090.8
S 24 x 10631.224.57.871.090.62
S 24 x 10029.3247.2450.870.745
S 24 x 9026.5247.1250.870.625
S 24 x 8023.52470.870.5
S 20 x 9628.220.37.20.920.8
S 20 x 8625.320.37.060.920.66
S 20 x 7522206.3850.7950.635
S 20 x 6619.4206.2550.7950.505
S 18 x 7020.6186.2510.6910.711
S 18 x 54.716.1186.0010.6910.461
S 15 x 5014.7155.640.6220.55
S 15 x 42.912.6155.5010.6220.411
S 12 x 5014.7125.4770.6590.687
S 12 x 40.812125.2520.6590.462
S 12 x 3510.3125.0780.5440.428
S 12 x 31.89.351250.5440.35
S 10 x 3510.3104.9440.4910.594
S 10 x 25.47.46104.6610.4910.311
S 8 x 236.7784.1710.4250.441
S 8 x 18.45.4184.0010.4250.271
S 6 x 17.255.0763.5650.3590.465
S 6 x 12.53.6763.3320.3590.232
S 5 x 102.9453.0040.3260.214
S 4 x 9.52.7942.7960.2930.326
S 4 x 7.72.2642.6630.2930.193
S 3 x 7.52.2132.5090.260.349
S 3 x 5.71.6732.330.260.17
Swipe horizontally to view all columns.
Note: Dimensions shown are nominal industry specifications and may vary slightly by mill. Contact us to confirm current availability and project requirements.