Corten B steel

Corten B, as the symbol of weathering steel material, weathering resistant steel or atmospheric corrosion resisting steel. Even, some people called all the weathering steel as Corten Steel. Corten B steel started from North America.Corten steel widely used in air preheater,economizer,railway carriage,containers production,bridge building,construction and so on

Classification ：

Weather Resistant Steel

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Product introduction

Corten B steel
ASTM Corten B steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.The steel grade Corten B is according to ASTM standard which with the yield strength of 355MPa and 345MPa which is based on the different thickness.
Corten B – a weather resistant steel which is better suited for heavy and load bearing structures.
The material forms its own protective layer when exposed to atmospheric elements. Essentially, the top layer corrodes which then protects the steel beneath it. The natural finish does not normally require any form of maintenance such as painting, which makes the material a highly cost effective alternative to other structural steels.
Painting and maintenance will be required if the structure is is continually wet as a protective layer will not form. An good example is where the base of the structure meets with the ground or is partially submerged.

Grades & Equivalents

Corten	EN 10025-5:2004
Corten B	S355J2W

Technical Data

Chemical Components

Grade	C	Si	Mn	P	S	Cu	Ni	Cr	V	N
Corten-A	0.12	0.25-0.75	0.20-0.50	0.07-0.15	0.03	0.25-0.55	0.65	0.50-1.25
Corten-B	0.16	0.30-0.50	0.80-1.25	0.03	0.03	0.25-0.40	0.4	0.40-0.65	0.02-0.10

ASTM Corten B steel Mechanical properties:
At room temperature for plates ≥3mm in thickness (transverse test specimans, according to EN 10002). Requirements to hot rolled plates ≤3mm in thickness according to EN 10025-5.

Grade	Thickness (mm)	Yield Strength MPa(min)	Tensile Strength MPa	Elongation % (min)
Corten B	≤16	355	470-630	20

1 Mpa = 1N/mm2
The impact energy is determined on ISO-V longitudinal test specimens at a temperature of - 20°C as an average of three tests. For product thicknesses ≥10mm the average value is at least 27 J. For thicknesses between 10mm and 6mm, the minimum impact value is reduced proportionally to the specimen width (product thickness).

Corten B Steel Delivery state

Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP), Electroslag Remelting Technical, HIC test.

Factory profile

Adhering to the tenet of "integrity first, quality for survival", the company has established a complete marketing channel of "based in North China, radiating the whole country, and facing the world", and has not only established a solid strategic partnership with many domestic and foreign enterprises.We have been committed to product development, production and sales, after more than ten years of efforts, our products have been widely used in various fields.

Packing method: Packing according to customer's requirement.

The company has more than 110,000 square meters of production and processing base, fully introduced the international advanced modern automatic production and processing equipment, and took the lead in passing the ISO9001, TS16949, BV, SGS and other international well-known institutions certification.The products are mainly exported to Italy, Mexico, South Korea, Israel, Turkey, India, Pakistan, Kyrgyzstan, Oman, Kazakhstan, Vietnam, Myanmar and other countries. The company's supply is sufficient, the variety is complete, order production is fast, welcome domestic and foreign manufacturers, traders to contact us.

Company Advantages
1. We are a large-scale production enterprise integrating production, research and development, and can customize the products required by customers.
2. We have a perfect after-sales service system, which can track the problems encountered by customers in production at any time and provide corresponding technical support, so as to share our high-quality resources with customers.
3. After more than ten years of development, the company has complete product varieties and large inventory, which can be delivered in the shortest time.
4. Free samples are available.
5. With obvious price advantage, the company has complete production process, from raw materials to finished products integrated production can maximize the cost savings.