Galvanized Steel Flat Bar

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Hot-dipped galvanized flat bar or “flat stock” is an excellent candidate for most processing techniques. Welding, torching, or abrasive sawing galvanized steel is not recommended without proper protection and adequate ventilation. Galvanized flat bars are A36 hot rolled steel, or mild steel, flat bars that have been dipped into a molten zinc coating process (ASTM A123). Hot-dipped galvanize (HDG) can be identified by its crystallization pattern, also known as “spangle” on the surface of the material. Great corrosion resistance, excellent candidate for outdoor use or exposed environments. Common applications include shelving, brackets, sculptures, bracing, trim, and trailers.



Most commonly used mild and hot rolled steel. Good welding, forming, & machining. Low cost structural steel.




Standard specification for zinc (hot-dip galvanized) coatings on iron and steel products.



Element Percentage
C 0.26
Cu 0.2
Fe 99
Mn 0.75
P 0.04 max
S 0.05 max



  Imperial Metric
Density 0.282 lb/in3 7.8 g/cc
Ultimate Tensile Strength 58,000psi 400 MPa
Yield Tensile Strength 47,700psi 315 MPa
Shear Strength 43,500psi 300 MPa
Melting Point 2,590 - 2,670°F 1,420 - 1,460°C


Hardness Brinell 140
Production Method Hot Rolled
The provided chemical compositions and mechanical properties are general approximations. Please contact our Customer Service Department for material test reports.
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Available Sizes


Size Length Weight
1/4" x 1" 240.00" 0.909
1/4" x 1-1/4" 240.00" 1.137
1/4" x 1-1/2" 240.00" 1.364
1/4" x 2" 240.00" 1.819
1/4" x 2-1/2" 240.00" 2.274
1/4" x 3" 240.00" 2.729
1/4" x 4" 240.00" 3.638
1/4" x 5" 240.00" 4.547
1/4" x 6" 240.00" 5.457
1/2" x 2" 240.00" 3.638
1/2" x 3" 240.00" 5.457
1/2" x 4" 240.00" 7.276


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