317L Round Bar

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Detailed Information:

RatnaExports.com is a formidable supplier and stockholder of a range of Weathering Resistant Plates known as CORTEN B. As maintenance-free alloy plates for heavyweight assemblies, S355 J2G1W Steel Plates were designed to perform better than regular steel plates.

What is Corten B?

With their light bodies, CORTEN Bare protects the steel beneath them from corrosion when they come into contact with the atmosphere, forming a rust crust. As a result of this process, BS 4360 WR 50 C stands out above the usual steel plates used across many industries. Its low phosphorus content makes it a viable alternative to other structural steels.

We are stockists of Corten B, which have the following merits :

  1. Workability

In UNI FE 510 D2K1 Corten B, alloys such as carbon, chrome, nickel, manganese, etc., promote excellent workability, allowing for better cold, hot, and gas-cutting options.

  1. Reliability

The SEW 087 WTSt 52-3 Corten B plates are not only paint-durable and corrosion-resistant but also very reliable. They have a tensile strength of 485 N/mm2, allowing them to form into various shapes without deforming.

  1. Light-weight and a longer lifespan

This EN10025-5 S235 J2W Corten B plate is suitable for high-strength, lightweight architectural structures. These plates are desirable for constant mechanical stress applications by not cracking or distorting under pressure.

  1. Cost efficient

ASTM A 588 GRADE Corten B reduces the cost of excessive regimens by using JIS G 3114 SMA 50 Corten B steel to produce an oxidized sheet that prevents future erosive activities.

  1. Weather and Corrosion Resistance

The rustic cover of the NFA 35-502 E36 WB 4 weather-resistant plates prevents corrosive damage to the inner Corten B plate, making it four to eight times harder than conventional steel.

  1. High tensile strength

It initiates the rust-forming process on the steel structure and is pivotal in raising the tensile strength if used in high quantities. Copper is a multipurpose alloy in ASTM A 242 TYPE 1 weathering Corten B.


Featuring many worthy features, EN10025-5 S355 Corten B is popular worldwide.

Architectural and sculpture industries use UNI FE 510 C2K1Weathering Corten B, which is corrosion-proof, allows multiple forming and welding options, and can be shaped into stunning designs.

BS 4360 WR 50 Corten B Weathering-resistant plates are widely used in bridge construction because they are strong enough to withstand sunlight, wind, and water without requiring special maintenance.

In the oil rig and petroleum extraction industries, S355J2G2W Corten B is used to manufacture industrial containers such as loaders, trucks, shovels, diggers, etc., because it reduces the severity of the corrosive environment.

As a result of its durability and lightweight, ASTM A 709 GRADE 50W Corten B is ideal for building transmission towers and television masts.

ASTM A 588 GRADE Corten B is corrosion-resistant enough for urban furniture, passenger ships, cranes, freight trains, etc. Stadiums and museums can be designed thanks to their excellent workability artistically.

Additionally, Conquest Steel and Alloys distributes the following types of Corten B:

Corten Steel B Plate, Grade B Corrosion Resistant Plate, Gr C Weathering Resistant Plate, EN10025-5 S355 JOW Plate, EN10025-5 S355 J2W Plates, EN10025-5 S235 J2W Plate, Corten Steel C Sheets, Corten Steel C Plates Supplier in India, S355 J2G1W Sheets, S355J2G2W Plates, S355 K2G1W Plates, S355 K2G2W, ASTM A 588 GRADE C Plates, ASTM A 588 GRADE C Plates, ASTM A 709 GRADE 50W Plates, Corten B Stockist in Mumbai, JIS G 3114 SMA 50 AW Sheet, JIS G 3114 SMA 50 CP Plate, BS 4360 WR 50 B Plate, BS 4360 WR 50 C Plates, NFA 35 -502 E24 W4, SEW 087 WTSt 37-3 Plate, SEW 087 WTSt 52-3, UNI FE 360 DK1, UNI FE 510 C2K1, Corten B, EN10025-5 S355 JOW, EN10025-5 S355 J2W, EN10025-5 S235 J2W, S355 J2G1W, S355J2G2W, Corten Steel C Sheets Supplier in Mumbai, Corten Steel C Sheets Stockist in india, S355 K2G1W, S355 K2G2W, ASTM A 588 GRADE C, ASTM A 588 GRADE C, ASTM A 709 GRADE 50W, JIS G 3114 SMA 50 AW, JIS G 3114 SMA 50 CP, BS 4360 WR 50 B, BS 4360 WR 50 C, NFA 35 -502 E24 W4, NFA 35-502 E36 WB 3, NFA 35-502 E36 WB 4, SEW 087 WTSt 37-3, SEW 087 WTSt 52-3, UNI FE 360 DK1, UNI FE 510 C2K1, UNI FE 510 D2K1, UNI FE 510 D2K1 Plates Based in Mumbai, India.

Corten B Specifications:

Specifications ASTM A242/ ASME SA242
Dimensions ASTM, ASME, and API
Standard JIS, AISI, ASTM, GB, DIN, EN, etc.
Width 1500-3200mm
Thickness 2-460mm
Length 6000-12000mm
Hot Rolled Corten B Plate size 3-150mm * 900-4100mm * 3000-18000mm


Chemical Properties of Corten B


Corten B











0.20 max

0.15 – 0.5

0.75 – 1.35

0.04 max

0.05 max

0.40 – 0.65

0.5 max

0.2 – 0.4

0.020 – 0.06

0.01 – 0.10

Mechanical Properties of Corten B


Yield strength

ReL N/mm² Minimum

Tensile strength Rm N/mm² Minimum

Elongation A50%


Corten B


485 min


Corten B Grade Equivalent

Steel Grade

EN 10025-5:2004


S355J0W and S355J2W


Corten B Test Certificates

Ratnaexports.com provides Manufacturer TC (Test Certificate) by EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, and Third Party Inspection Report. We also provide Standard certificates and additional requirements.

  • EN 10204/3.1B,
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third-Party Inspection Report, etc

ASTM, ASME Corten B Value Added Services

Material Testing:

At RatnaExports.com ensure that all our materials go through strict quality tests before dispatching them to our clients.

  • Mechanical Testing Such as Tensile of Area
  • Hardness Test
  • Chemical Analysis – Spectro Analysis
  • Positive Material Identification – PMI Testing
  • Flattening Test
  • Micro and MacroTest
  • Pitting Resistance Test
  • Flaring Test
  • Intergranular Corrosion (IGC) Test


  • Commercial Invoice, which includes HS Code
  • Packing List including net weight and gross weight, number of boxes, Marks, and Numbers
  • Certificate of Origin legalized/attested by the Chamber of Commerce or Embassy
  • Fumigation Certificates
  • Raw Material Test Reports
  • Material Traceability Records
  • Quality Assurance Plan (QAP)
  • Heat Treatment Charts
  • Test Certificates certifying NACE MR0103, NACE MR0175
  • Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
  • Guarantee Letter
  • NABL-approved Laboratory Test Reports
  • Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
  • Form A for the Generalized System of Preferences (GSP)

Corten B Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

Corten B Packaging

Corten B is widely used in various industries, including petrochemical, oil and gas, power generation, bulk liquid transportation, chemicals, pharmaceuticals, pulp and paper manufacturing, textiles, etc. International standards manufacture all our Corten B. Corten B is packaged to ensure no damage during transit. In the case of exports, standard export packaging is done in wooden cases. All Corten B are marked with Grade, Lot No, Size, Degree, and our trademark. We can also make custom markings on Tube Insert on special requests.

Countries We Export:

Afghanistan, Albania, Algeria, Andorra, Angola, Antigua-Barbuda Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina-Faso, Burundi, Côte d’Ivoire, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo (Congo-Brazzaville), Costa-Rica, Croatia, Cuba, Cyprus, Czechia (Czech Republic), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini (fmr. “Swaziland”), Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Myanmar (formerly Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, North Korea, North Macedonia, Norway, Oman, Pakistan, Palau, Palestine-State, Panama, Papua, New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Syria, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe.

Cities We Supply:

London, New-York, Paris, Moscow, Tokyo, Dubai, Singapore, Barcelona, Los-Angeles, Madrid Rome, Chicago, Toronto, San-Francisco, Abu-Dhabi, St-Petersburg, Amsterdam, Berlin Prague, Washington,Istanbul, Las-Vegas, Doha, Seoul, Sydney, Beijing,  Miami, Munich, Milan, San-Diego, Bangkok, Vienna, Dublin, Vancouver, Boston,  Zurich,  Melbourne, Budapest, Houston, Seattle, Montreal, Hong-Kong, Frankfurt, Sao-Paulo, Tel-Aviv, Copenhagen, Calgary, Orlando, Atlanta, Dallas, Hamburg, Osaka, Lisbon, Austin, Phoenix Naples, Oslo, Denver, Stockholm, Riyadh, Delhi, Buenos Aires, San-Jose, Brussels, Portland Philadelphia, Ottawa, Helsinki, Valencia, Brisbane, Warsaw, Minneapolis, Shanghai, Lyon, Adelaide, Edmonton, Marseille, Muscat, Athens, Stuttgart, Rio-De-Janeii, Baltimore, Auckland, Cologne, New-Orlean, Kuwait-City,  Kiev, Hanover, Perth, Minsk, Bucharest, Nashville, Dusseldorf, Manchester, Sacramento, Glasgow, Mexico-City, Salt-Lake-Ci, Raleigh, Cracow