Carbon Steel Plate SAC 350 3/8"

A SAC 350 3/8" carbon steel plate(9.50 mm) is ahot rolled thick platedeveloped byUsiminasfor structural and architectural applications in exposed environments. It is aweathering steel, also known asWeathering Steel, which naturally forms a surface layer of stable oxides — the patina — responsible for itshigh resistance to atmospheric corrosionno need for painting.

Technical description of the SAC 350 3/8" sheet

With nominal thickness of9.50 mm, theSAC 350 plateOffers excellent mechanical performance combined with natural weather protection. Its controlled chemical composition, rich in copper, phosphorus, and chromium, forms a protective film that prevents rust from progressing, making it ideal for metal structures exposed to the elements.

Mechanical properties and chemical composition

• Manufacturing standard:Usiminas SAC 350 | equivalent to ASTM A588 / EN 10025-5 S355J2W
• Nominal thickness:3/8" (9.50 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 dramatically reduces maintenance costs.
• Excellent weldability and formability:allows cutting, bending, chamfering and calendering with high precision.
• Natural aesthetic finish:reddish-brownish coloration typical of weathering steels, widely used in modern architecture.
• High durability:superior service life in outdoor and industrial environments.
• Certification and full traceability:provided with original reports fromUsiminas e CSN.

Applications of SAC 350 3/8" sheet

A weathering steel plate SAC 350It is widely used in structural and architectural projects that require resistance, aesthetics and low maintenance costs:

• Metal bridges and urban walkways
• Facade structures and decorative elements
• Platformsoffshoreand marine equipment
• Tanks, silos and industrial transport systems
• Towers and supports in aggressive environments
• Agricultural and mining equipment
• Monuments, sculptures and architectural projects of oxidized design

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 PurchaseprovidesSAC 350 3/8" plateswith custom cutting and processing, usingCNC plasma, oxyfuel, bending, chamfering and calendering. All processes follow industrial standards of precision and traceability, ensuring excellent performance and finish.

Quality control and certification

AllSAC 350 platesare provided withquality certification and full traceability da Usiminas e CSNEach batch is accompanied by chemical and mechanical reports, ensuring compliance with technical standards and total reliability for structural and architectural applications.

Why buy from Compraço

• Distribution throughout the national territory with agile deadlines;
• Large stock of SAC 350 weathering sheets in various thicknesses;
• Specialized technical assistance in corrosion-resistant steels;
• Original plant reports and full traceability;
• Best value for money and specialized technical and commercial support.

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 properties and superior performance in outdoor environments.

Is it necessary to paint SAC 350 steel?

Not necessarily. TheSAC 350 steelIt forms a natural patina that eliminates the need for painting in many applications. However, it can be painted for aesthetic purposes or in extremely harsh environments.

Do you provide custom cutting?

Yes. APurchaseperforms custom cutting and processing of SAC 350 3/8" sheets with industrial precision and traceability report.

Search SAC 350 3/8" carbon steel plate(9.50 mm) with certified quality and ready for delivery?Talk toPurchase— a national reference in weathering and structural steels — and guarantee specialized technical support and the best commercial conditions.