A53 Carbon Steel Square Bar
ASTM A53 Carbon Steel Square Bar is a versatile carbon structural square bar, available in Grade A and B with hot-rolled and cold-finished variants for diverse fabrication needs. It features well-balanced tensile strength and ductility, excellent weldability, machinability and cold workability for easy on-site processing and customization. Its square cross-section delivers superior bending and torsion resistance, paired with precise dimensional tolerance and uniform material quality for stable structural performance. Performing reliably under normal temperature and low-medium pressure, it’s cost-effective and widely available, a mainstream square bar for general industrial and civil structural precision fabrication.
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Product Specification

Diameter3-70mm / 0.11"- 2.75"
Length1-20m / 39"- 787"
ProcessCutting, Bending, Polishing, etc.
SurfaceOiled, Black Painted, Shot Blasted, etc.
Standard

A53, A106, A179, A192, A213, A252, A333, A335, etc.

ApplicationA53 Carbon Steel Square Bar is widely used in manufacturing precision mechanical equipment frames and brackets, industrial hardware components and fasteners, as well as building structural auxiliary parts and municipal engineering metal accessories. It’s also applied in the production of warehouse racking core components, agricultural machinery structural parts, mold base and fixture materials, and light steel structure connecting parts for industrial workshops and commercial buildings.
TechniqueCold Rolled & Hot Rolled


Packaging and Shipping

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Strength Demonstration

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Complete Products

We offer a comprehensive range of steel products for diverse industrial needs

Professional Services

We provide one-stop professional steel services with dedicated technical support

Customization Supported

We support tailored steel customization to match your specific project requirements

Quality Control

We implement strict full-process quality control for all steel products supplied

Fast Delivery

We ensure fast and on-time delivery for all your steel order requirements

After-Sales Service

We offer reliable all-round after-sales service for all steel product purchases

Production and Testing

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FAQ

Q: What is the terms of packing?
A:

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.

Q: Could you provide the samples?
A:

Yes, we could provide the free samples on conditions it is available in stocks, however, the transportation fee is borne by buyer.

Q: How could you guarantee your products?
A:

Each piece of products is manufactured by certified workshops, inspected piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Q: Do you make custom products?
A:

Yes, we could make custom products according to your specific requirements.

Q: Do you accept third-party inspection?
A:

We accept third-party inspections such as SGS, V-trust, TUV, DNV, etc.

Q: Can I go to your company to visit?
A:

Of course, we welcome customers from all over the world to visit our factory.

Q: What product information do I need to provide?
A:

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q: What is your delivery time?
A:

For stocks, we could transport the goods to loading port within 7 days after we received your deposit. For production period, it usually takes about 15 days-30 days after receiving the deposit.

Q: Do you have any discounts for large orders?
A:

Our company has the ability to supply large projects and offers excellent preferential policies for large orders.

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