Thick 5/8" Carbon Steel Plate

CSN/Usiminas Quality and Traceability Certification. A 5/8" carbon steel plate ASTM A36 / Civil 300(15.88 mm) is ahot-rolled thick plateWidely used in structural, industrial, and metal construction applications. Manufactured according to standards.ASTM A36 e NBR 6650This alloy offers an excellent combination of mechanical strength, ductility, and weldability—ideal for projects that demand performance, dimensional accuracy, and durability.

Technical characteristics of 5/8" A36 / Civil 300 Carbon Steel Plate

With a thickness of15.88 mmThe sheet is produced by hot rolling, resulting in a homogeneous structure with high strength and easy shaping. The materialASTM A36It is recognized worldwide for its balance between strength and flexibility, while theUSI Civil 300It is a national variation with equivalent mechanical properties and excellent performance in welding, cutting and bending.

Mechanical and chemical properties

• Standards: ASTM A36 / NBR 6650 / USI Civil 300
• Nominal thickness:5/8" (15.88 mm)
• Yield point (Fy):250 to 300 MPa
• Tensile strength (Fu):400 – 550 MPa
• Minimum stretch:20%
• Modulus of elasticity:200 GPa
• Density:7.85 g/cm³
• Typical chemical composition (%): C ≤ 0.26 | Mn 0.60–1.20 | Si ≤ 0.40 | P ≤ 0.04 | S ≤ 0.05

Advantages of A36 Plate / Civil 300

• High structural strength:Excellent performance in demanding industrial and construction environments.
• Excellent weldability and machinability:Compatible with all major processes (MIG, TIG, submerged arc, coated electrode).
• Excellent conformability:Ideal for cutting, bending and rolling, while maintaining mechanical integrity.
• Versatility:Suitable for metal structures, equipment bases, and heavy mechanical applications.
• Certified supply:Full traceability of origin guaranteed by the plants.CSN e Usiminas.

Applications of 5/8" A36 Carbon Steel Sheet / Civil 300

A 5/8” thick steel plateIt is widely used in industrial and infrastructure sectors.

• Civil and metal construction
• Industrial structures and load supports
• Mining equipment and heavy boiler making
• Tanks, silos and pressure vessels
• Platforms, walkways and machine bases
• Sugar, alcohol, energy, and pulp and paper plants
• Petrochemical and offshore sector

Industrial processing and refinements

A I'm buyingprovidesA36 and Civil 300 thick platesWith technical finishing and custom cutting, offering the following benefits:

• CNC cutting (plasma, oxyfuel and waterjet)
• Bending, rolling and technical chamfering
• Precision trimming and squaring
• Dimensional control and heavy machining

Quality control and certification

AllASTM A36 and USI Civil 300 platesThey are produced and inspected according to standards.ASTM A6 e NBR 6650Each batch is accompanied by chemical and mechanical reports issued by the plants, ensuring full traceability and technical compliance for structural and industrial use.

International standards and equivalencies

• Brazil: NBR 6650 / NBR 11888 / NBR 5915 / USI Civil 300
• United States:ASTM A36
• Europe:EN 10025 S275JR
• Germany:DIN 17100 St 37-2
• Japan:JIS SS400

Why choose Compraço?

• National expert inthick structural platesand hot-rolled;
• Direct partnership with the main Brazilian sugar mills;
• Technical supply with full certification and traceability;
• Precision industrial cutting and processing services;
• Services focused on civil, mechanical, and heavy infrastructure projects.

Carbon Steel Plate 5/8" ASTM A36 / Civil 300 (15.88 mm)— Ideal for structural, industrial, and engineering applications that demand strength, reliability, and certified quality. AI'm buyingWe supply steel with proven performance to all sectors of the national industry.