Carbon Steel Plate SAC 350 1/4"

A SAC 350 1/4" carbon steel plate(6.35 mm) is ahot rolled thick platehigh mechanical strength and exceptional protection against atmospheric corrosion. Produced byUsiminasand certified according to rigorous industrial standards, the steelSAC 350belongs to the category ofweathering steels (Weathering steels), which form a natural layer of stable oxides — thepatina— responsible for protecting the material from rust and significantly increasing its durability in outdoor environments.

Technical description of the SAC 350 1/4" sheet

With nominal thickness of6.35 mm, theSAC 350 plateCombines aesthetics, strength, and structural performance. Its hot-rolling process ensures uniformity, excellent surface finish, and superior mechanical properties, ideal for architectural and industrial applications exposed to the elements.

Mechanical properties and chemical composition

• Manufacturing standard:Usiminas SAC 350 (equivalent to ASTM A588 / EN 10025-5 S355J2W)
• Nominal thickness:1/4" (6.35 mm)
• Yield strength (Fy):≥ 350 MPa
• Tensile strength (Fu):470 – 630 MPa
• Minimum stretch:20%
• Modulus of elasticity:200 GPa
• Density:7.85 g/cm³
• Typical chemical composition (%): C ≤ 0.12 | Mn ≤ 1.50 | Si 0.25–0.75 | P ≤ 0.04 | S ≤ 0.03 | Cu 0.25–0.55 | Cr 0.40–0.65 | Ni ≤ 0.65

Main features and advantages

• High resistance to atmospheric corrosion:the protective patina eliminates or drastically reduces the need for painting.
• Extended Durability:excellent performance in industrial, urban and maritime atmospheres.
• Excellent weldability and formability:ideal for cutting, bending, calendering and chamfering with high precision.
• Differentiated architectural aesthetics:the natural rusty tone is highly valued in modern design and construction projects.
• Guaranteed certification of origin:provided with complete reports from the plantsUsiminas, CSN, Gerdau e ArcelorMittal.

Applications of SAC 350 1/4" sheet

A SAC 350 1/4" steel plateIt is widely used in sectors that require structural strength and low maintenance costs, such as:

• Metal bridges, viaducts and urban walkways
• Facades, louvers and architectural coverings
• Tanks, silos and exposed metal bases
• Offshore, naval and petrochemical structures
• Agricultural and mining equipment
• Monuments, sculptures and public works of oxidized design
• Long-term industrial and civil metal structures

International equivalences and correspondences

• United States:ASTM A588 Grade A
• Europe:EN 10025-5 S355J2W / S355K2W
• Germany: DIN 17100 WSt 52-3 N (Corten A)
• Japan:JIS SPA-H

Processing and custom cutting

A Purchaseoffers the supply ofSAC 350 1/4" platescut and processed to measure, with processes ofCNC plasma, oxyfuel, bending, chamfering and calendering. Dimensional control and full traceability ensure accuracy, quality and compliance in every batch delivered.

Quality control and certification

AllSAC 350 platesare provided withfull quality and traceability certificationof the plantsUsiminas e CSNEach batch is accompanied by chemical and mechanical reports, ensuring compliance with national and international standards and the reliability required for critical engineering projects.

Why buy from Compraço

• Distribution throughout the national territory;
• Large stock of SAC 350 sheets in various thicknesses;
• Specialized technical support for weathering and structural steels;
• Original plant reports and full traceability;
• Best value for money and guaranteed quality delivery.

Frequently asked questions

Is SAC 350 steel the same as Corten?

Yes. TheSAC 350is the national equivalent of steelCorten A(ASTM A588), with the same weathering composition and superior performance in outdoor environments.

Does this sheet metal need to be painted?

Not necessarily. TheSAC 350 steelCreates a natural layer of protective patina that eliminates the need for painting in many applications. In extremely harsh environments, additional coating can be applied to further extend durability.

Do you provide custom-made products?

Yes. APurchaseperforms custom cutting and processing ofSAC 350 1/4" plate, according to the customer's technical and dimensional specifications.

Search SAC 350 1/4" carbon steel plate(6.35 mm) with certified quality and ready for delivery?Talk toPurchase— a national reference in weathering and structural steel — and receive specialized technical support and the best commercial conditions for your project.