High Quality Corten Steel Sheets & Plates

A type • B type • Formable • Ductile • Machinable

Corten steel explained

Corten Steel, also known as weathering steel, is a special alloy designed to naturally form a protective rust-like patina when exposed to the atmosphere. Unlike regular Mild Steel (MS), which corrodes progressively, Corten Steel develops a stable oxide layer that prevents further corrosion, significantly increasing its lifespan without the need for painting or coating. Compared to Stainless Steel (SS), which resists corrosion through chromium-based passivation, Corten Steel offers a more cost-effective solution for outdoor and architectural applications while providing a unique rustic appearance. Corten Steel is available in two primary grades: Type A and Type B.

Corten Steel Type A and Type B Sheets & Plates

Premium Corten Steel type A / B Sheets & Plates by Ratnadeep Steel & Engg.

Ratnadeep Steel & Engg. Co. is a trusted manufacturer, exporter, and supplier of high-quality Corten Steel Type A and Type B Sheets and Plates. Based in Mumbai, India, we specialize in providing premium weathering steel products engineered to resist atmospheric corrosion and deliver exceptional structural performance. Our Corten Steel plates are manufactured using advanced alloy compositions enriched with copper, chromium, and nickel, enabling the material to form a stable, protective oxide layer that eliminates the need for painting and resists corrosion naturally.

Corten Steel Type A and Type B are widely appreciated for their superior mechanical strength, long service life, and distinctive rustic appearance. These grades develop a protective patina when exposed to outdoor environments, significantly slowing down corrosion and reducing maintenance costs. Their excellent weldability, formability, and high tensile strength make them ideal for architectural designs, outdoor structures, bridges, chimneys, shipping containers, industrial facades, garden screens, and other applications where durability and aesthetic value are equally important.

At Ratnadeep Steel & Engg. Co., every Corten Steel sheet and plate undergoes rigorous quality checks to ensure compliance with international standards and client-specific requirements. We offer Corten Steel Type A & B Sheets and Plates in various thicknesses, sizes, and customized dimensions to suit diverse industrial and architectural applications. With our commitment to quality, precision, and timely delivery, we continue to be a preferred global supplier of premium Corten Steel products for weather-resistant and visually appealing structures.

Corten Steel Sheets & Plates

Type A Sheets & Plates
Type B Sheets & Plates

Our Corten Steel type A and B Sheets and Plates are available in a variety of size, depending on the specific demands of your project.

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Explore Corten Steel type A Sheets and Plates

Corten Steel type A Sheets and Plates

Explore Corten Steel type B Sheets and Plates

Corten Steel type B Sheets and Plates

The materials we supply undergo a comprehensive range of quality assurance procedures, including eddy current testing, hydrostatic testing, ultrasonic examination, and other essential NDT methods, along with detailed chemical and mechanical property evaluations. Each product is thoroughly inspected at multiple stages of manufacturing to ensure it is free from defects and suitable for demanding industrial applications. Our rigorous testing standards guarantee consistent quality and reliability. In addition, all products are manufactured in accordance with relevant industry norms and specifications, making them fully compliant and widely accepted in both domestic and international markets.

CHEMICAL COMPOSITION OF CORTEN STEEL PLATES & SHEETS

EN 10027-1 & CR 10260
According To	C % max.	Si % max.	Mn %	P %	S % max.	N % max.	Cr %	Cu %	V%	Ni%	Z%	Mo%
S235J0W	0.13	0.40	0.20-0.60	0.04	0.04	0.01	0.40-0.80	0.25-0.55	–	0.65	–	–
S235J2W	0.13	0.40	0.20-0.60	0.04	0.03	–	0.40-0.80	0.25-0.55	–	0.65	–	–
S355J0W	0.12	0.75	1.00	0.06-0.15	0.04	0.01	0.30-1.25	0.25-0.55	–	0.65	–	–
S355J2WP	0.12	0.75	1.00	0.06-0.15	0.03	–	0.30-1.25	0.25-0.55	–	0.65	–	–
S355J0W	0.16	0.50	0.50-1.50	0.04	0.04	0.01	0.40-0.80	0.25-0.55	–	0.65	0.15	0.30
S355J2W	0.16	0.50	0.50-1.50	0.03	0.03	–	0.40-0.80	0.25-0.55	–	0.65	0.15	0.30
S355K2W	0.16	0.50	0.50-1.50	0.03	0.03	–	0.40-0.80	0.25-0.55	–	0.65	0.15	0.30

According To ASTM & ASME Specifications

According To	C % max.	Si %	Mn %	P %	S % max.	N % max.	Cr %	Cu %	V%
A 588 Gr. A	0.19	0.3-0.65	0.80-1.25	0.04	0.05	–	0.40-0.65	0.25-0.40	0.02-0.10
A 588 Gr. B	0.20	0.15-0.50	0.75-1.35	0.04	0.05	–	0.40-0.70	0.20-0.40	0.01-0.10
A 588 Gr. C	0.15	0.15-0.40	0.80-1.35	0.04	0.05	–	0.30-0.50	0.20-0.50	0.01-0.10
A 588 Gr. K	0.17	0.25-0.50	0.50-1.20	0.04	0.05	–	0.40-0.70	0.30-0.50	–
A 242 Type-1	0.15	–	1.00	0.15	0.05	–	0.20-min.
A 242 Type-2	0.20	–	1.50	0.04	0.05	–	0.20-min.

According To IS Standard

According To	C % max.	Si %	Mn %	P %	S % max.	N % max.	Cr %	Cu %	V%	Ni%	Z%	Mo%
IRSM-41	0.10	0.30-0.50	0.25-0.45	0.075-0.14	0.03	–	0.35-0.49	0.30-0.60	0.05	0.28-0.49	–	0.05

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