Corten Plates, Corten A Plates, A558 corten A Plates, ASTM A 242 Corten A Plates, S 355JOW Corten Plates supplier and exporter in Mumbai- India.
Grade names: “A558” refers to ASTM A588, and “S 355JOW” to S355J0W (with a zero) in EN 10025-5. “Corrosion resistant” on this page means resistance to atmospheric corrosion; for acids, sea water or process chemicals, see our High Nickel Alloys Plates page.
Weathering steel (CORROSSION RESISTANT PLATE), fine-recognised beneath the trademark corten a metal and once in a while written without the hyphen as "corten a steel", is a group of metal alloys which had been advanced to obviate the want for painting, and form a stable rust-like appearance if exposed to the weather for numerous years. united states steel company (uss) holds the registered trademark on the call corten a. even though usasold its discrete plate commercial enterprise to international metallic institution (now arcelor-mittal) in 2003, it still sells corten a branded material in strip-mill plate and sheet forms.
The unique corten a acquired the same old designation ASTM a 242 type-1("cor-ten a") from the ASTM global standards institution. More recent ASTM grades are a 588 ("corten a") and a 606 for thin sheet. All alloys are in not unusual manufacturing and use.
Trademark and grades: COR-TEN is a registered trademark of United States Steel Corporation, which sold its discrete plate business in 2003 to International Steel Group, now part of ArcelorMittal. ASTM A242 Type 1 corresponds to COR-TEN A, while ASTM A588 corresponds to COR-TEN B rather than COR-TEN A, as our Corten Plates page states. ASTM A606 covers thin sheet and strip.
JIS G 3125:2004: eastern grade for climate resistant metallic plates: superior atmospheric corrosion resisting rolled steels this widespread specifies the rolled steel having excessive atmospheric corrosion resistance, for use for vehicle, constructing, metallic tower and other shape.
IRSM 41-97 corrosion resistance steel Indian grade for weather resistant metallic plates: IRSM 41-97 general of Indian railways especially formed for wagon frame because of it high resistance to corrosion, main wagon builder being rail train manufacturing facility.
JIS and IRS: JIS G 3125 is the Japanese standard for superior atmospheric corrosion resisting rolled steels, with grades SPA-H (hot rolled) and SPA-C (cold rolled). IRS M-41 is the Indian Railways specification for weather-resistant steel used in wagon construction.
Corrosion Resistant Plates: Quick Buying Information
| Buying item | Information to specify |
|---|---|
| Standard and grade | ASTM A242 (Corten A), ASTM A588 Grade A (Corten B), EN 10025-5 S355J0W / S355J2W, IRS M-41 or JIS G 3125, with the edition required. |
| Dimensions | Thickness × width × length in mm; number of plates or total weight. |
| Exposure | Open atmosphere, coastal or industrial location, and whether the surface will be painted or left to weather. |
| Processing | Cut-to-size pieces or profiles, with drawing, bending and welding requirements. |
| Documents | Mill test certificate type (for example EN 10204 3.1), impact test where required, inspection and destination. |
Explore Our Corrosion Resistant Plate Range
Weathering steel grades in this range
| Grade | Standard | Main features |
|---|---|---|
| Corten A | ASTM A242 Type 1 | Higher phosphorus (0.07–0.15%) with Cr, Cu and Ni; minimum yield 345 MPa |
| Corten B | ASTM A588 Grade A | Low phosphorus with Cr, Cu and V; minimum yield 345 MPa; used in heavier structural sections |
| S355J0W / S355J2W | EN 10025-5 | European weather-resistant structural steel; minimum yield 355 MPa in thinner sections; J0 or J2 impact level |
| IRS M-41 | Indian Railways | Weather-resistant steel for wagon construction |
| SPA-H / SPA-C | JIS G 3125 | Japanese hot-rolled and cold-rolled atmospheric corrosion resisting steel |
Corten A and Corten B values are from our Corten Plates page. Grades under different standards are comparable in purpose but not automatically interchangeable; order the grade named in your specification.
Compare Corten A and Corten B Before Purchasing
| Property | Corten A (ASTM A242) | Corten B (ASTM A588) |
|---|---|---|
| Carbon, max | 0.12% | 0.19% |
| Phosphorus | 0.07 – 0.15% | 0.035% max |
| Chromium | 0.50 – 1.25% | 0.40 – 0.65% |
| Copper | 0.25 – 0.55% | 0.25 – 0.40% |
| Vanadium | — | 0.02 – 0.10% |
| Minimum yield / tensile | 345 / 485 MPa | 345 / 485 MPa |
| Typical selection | Thinner plate and sheet: facades, containers, stacks | Heavier structural plate: bridges and building structures |
Chemistry and properties as listed on our Corten Plates page. Higher phosphorus in Corten A improves weathering but reduces weldability and toughness in thick sections.
How to Select the Right Weathering Steel Plate
- Wet and dry cycles
- Chlorides
- Strength
- Thickness
- Welding
Weathering steel forms its protective patina only where the surface is wetted and then dries out again. It is not suited to surfaces that stay wet, are buried or immersed, or are exposed to heavy salt spray or aggressive industrial fumes, where the rust layer keeps growing. Allow for rust run-off staining on nearby concrete and stone during the first years. Choose Corten B or S355J2W for thicker, welded structures, and specify weathering welding consumables for exposed welds so they weather to match. This guidance supports purchasing; the designer's approved grade and specification decide suitability.
APPLICATIONS
- Chimneys
- Bridges
- Tubular bridges
- Facades
- Containers
- Tanks
- Corten Facades
Applications and Service Requirements
| Application | Grade to evaluate | Selection input |
|---|---|---|
| Bridges and tubular bridges | Corten B, S355J2W | Design code, thickness, impact and drainage detailing |
| Railway wagons | IRS M-41 | Indian Railways specification and inspection |
| Chimneys and stacks | Corten A, Corten B | Flue gas condensation and outer exposure |
| Facades and architectural cladding | Corten A, S355J0W | Appearance, run-off staining and thickness |
| Containers | Corten A, SPA-H | Sheet thickness, forming and welding |
| Tanks and structures in open air | Corten A, Corten B | Internal contents, coating and exposure |
These are material application examples. Internal surfaces in contact with stored liquids normally need a coating or a different material. Final selection depends on the actual service conditions and specification.
Chemical Composition
| C | Si | Mn | P | S | Cr | Cu | Ni |
|---|---|---|---|---|---|---|---|
| ≤ 12 | 0.25 - 0.75 | 0.20 - 0.50 | 0.07 - 0.15 | ≤ 0.030 | 0.50 - 1.25 | 25 - 0.55 | = 0.65 |
Reading the table: These are Corten A limits in weight %. Carbon is ≤ 0.12%, copper 0.25–0.55% and nickel ≤ 0.65%, as shown on our Corten Plates page.
Mechanical Properties : Hot Rolled Sheets
| Yield Strength (MPa) | Tensile Strength (MPa) | Minimum Elongation A (Lo = 5.65 vSo) % |
|---|---|---|
| 355 | 470 - 630 | 20 |
Mechanical Properties : Cold Rolled Sheets = 3 mm in thickness
| Yield Strength (MPa) | Tensile Strength (MPa) | Minimum Elongation A % |
|---|---|---|
| 275 | 410 | 25 |
Reading the tables: “= 3 mm” means sheets up to 3 mm thick, and “vSo” is √So, the gauge length formula. The hot-rolled values (355 MPa yield, 470–630 MPa tensile) match S355J0W to EN 10025-5 in thinner sections. Corten A and Corten B plates to ASTM are listed at 345 MPa minimum yield and 485 MPa tensile on our Corten Plates page. Yield strength falls in thicker plates, so confirm the value for your thickness.
Standards for Weathering Steel
| Standard | Scope | Grades |
|---|---|---|
| ASTM A242 | High-strength low-alloy structural steel with atmospheric corrosion resistance | Type 1 (Corten A) |
| ASTM A588 | High-strength low-alloy structural steel, 345 MPa minimum yield, with atmospheric corrosion resistance | Grade A (Corten B), Grade B, Grade K |
| ASTM A606 | High-strength low-alloy hot- and cold-rolled sheet and strip with improved atmospheric corrosion resistance | Type 4 |
| EN 10025-5 | Structural steels with improved atmospheric corrosion resistance | S235J0W, S235J2W, S355J0W, S355J2W, S355K2W |
| JIS G 3125 | Superior atmospheric corrosion resisting rolled steels | SPA-H, SPA-C |
| IRS M-41 | Indian Railways specification for weather-resistant steel | As specified by Indian Railways |
COR-TEN is a trade name; for purchasing, name the standard and grade, such as ASTM A588 Grade A or EN 10025-5 S355J2W, so the mill certificate can be checked against it. For plate dimensions and tolerances, state ASTM A6 for ASTM grades or EN 10029 for EN grades.
Plate Sizes and Delivery Condition
Our product pages do not list a standard size table for weathering steel plate, so send the thickness, width, length and quantity you need for availability. Weathering steel is supplied as rolled or normalized, with mill scale; the patina forms only after the surface is exposed to the weather. If an even appearance matters, as on facades, ask about blast cleaning before installation.
Cut-to-Size Plates and Profiles
Weathering steel plate can be cut to size and shape to your drawings through our cutting services, including plasma cutting. Send the grade, thickness, drawing, cut dimensions, quantity and tolerances. For facade panels, tell us about visible edges and hole patterns so they can be cut cleanly.
Testing, Material Documents and Traceability
State the certificate type and test scope with the RFQ. A mill test certificate for the plate and the company's quality-system certification are different documents.
| Requirement | What to identify in the order |
|---|---|
| Material certificate | EN 10204 3.1 or 3.2, showing standard, grade, chemistry including Cu, Cr, Ni and P, and mechanical results |
| Impact test | Test temperature and energy, for example J0 or J2 for EN 10025-5 grades |
| Heat traceability | Heat or plate number on the plate and certificate; transfer to cut pieces where required |
| Inspection | Railway or third-party inspection where required, and report format |
Review our Quality Policy and include your project inspection requirements in the enquiry.
Why Source Corrosion Resistant Plates from Champak Industries?
Our Mumbai service centre supplies weathering steel plate to ASTM, EN, JIS and Indian Railways standards, alongside high tensile, abrasion resistant and nickel alloy plate. Plates can be cut to size and shape to your drawings, so one enquiry can cover material, processing and documentation for India or export. Read our Company Profile for the wider supply offering.
Corrosion Resistant Plate Price and Quotation
Price depends on the standard, grade, thickness, plate size, quantity, impact testing, cutting, inspection, packing and destination. Send a complete requirement for a quotation stating the offered grade and mill, price basis, tax/freight treatment and validity.
Domestic Dispatch and Export Requirements
For domestic orders, give the delivery address and unloading requirements. For exports, specify the destination, delivery terms, packing and marking instructions and the shipping documents required, with your required delivery date. Facade panels can be packed with interleaving to protect visible faces on request.
We Supply Corrosion Resistant Plates in listed cities in India
Mumbai, Lucknow, Coimbatore, Imphal, Mysore, Ratlam, Delhi, Kanpur, Darjeeling, Jalandhar, Nagpur, Solapur, Kolkata, Allahabad, Dehradun, Jammu, Nashik, Srinagar, Chennai, Ahmedabad, Faridabad, Jamshedpur, Bhadravati, Chattisgarh, Durgapur, Asansol, Hospet, Bellary, Visakhapatnam, Nellore, Surat, Bangalore, Chandigarh, Ghaziabad, Jhansi, Patna, Siliguri, Hyderabad, Stainless Steel Pipe dealers in Salem, Amritsar, Noida, Kochi (Cochin), Mangalore, Indore, Vadodra, Bhubaneswar, Bikaner, Bhavnagar, Tirupur, Ankleshwar, Warangal, Agartala, Thoothukudi, Stainless Steel Pipe suppliers in Pune, We offer fastest delivery in India including Thiruvanthapuram, Jaipur, Aizawl, Guwahati, Kozhikode, Raipur, Vishakhapatnam, Jabalpur, Bhopal, Gwalior, Ludhiana, Rajahmundry, Thane, Agra, Bhubaneshwar, Gurgaon, Madurai, Rajkot, Varanasi, Bhilai, Haridwar, Meerut, Ranchi, Ahmednagar, Akola, Amravati, Aurangabad, Baramati, Beed, Bhandara, Bhiwandi, Buldhana, Chandrapur, Chimur, Dahanu, Dhule, Dindori, Erandol, Gadchiroli, Hatkanangle, Hingoli, Ichalkaranji, Jalgaon, Jalna, Karad, Khed, Yavatmal, Kolaba, Kolhapur, Kopargaon, Latur, Malegaon, Mumbai, Nagpur, Nanded, Nandurbar, Nashik, Osmanabad, Pandharpur, Parbhani, Rajapur, Ramtek, Ratnagiri, Raver, Sangli, Satara, Shirdi, Shirur, Solapur, Thane, Wardha, Washim, Andhra Pradesh, Jammu and Kashmir, Nagaland, Uttarakhand, Haryana, Lakshadweep, Arunachal Pradesh, Jharkhand, Odisha, West Bengal, Himachal Pradesh, Assam, Karnataka, Punjab, Andaman and Nicobar Islands, Puducherry, Bihar, Kerala, Rajasthan, Chandigarh, Meghalaya, Chhattisgarh, Madhya Pradesh, Sikkim, Dadar and Nagar Haveli, Mizoram, Goa, Maharashtra, Tamil Nadu, Daman and Diu, Tripura, Gujarat, Manipur, Telangana, Delhi, Uttar Pradesh in India.
Location note: The phrases “Stainless Steel Pipe dealers in Salem” and “Stainless Steel Pipe suppliers in Pune” in the list above refer to the cities of Salem and Pune. This page covers corrosion resistant plates, not stainless steel pipe.
We Supply and Export in listed Country
United States of America, Malaysia, UAE, Indonesia, Saudi Arabia, Iran, Qatar, India, China, United Kingdom, Singapore, Canada, Thailand, South Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, South Africa, Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Taiwan, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Trinidad & Tobago, Greece, Czechia, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, South Korea, Thailand, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Czechia, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine, Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Trinidad & Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan
Frequently Asked Questions About Corrosion Resistant Plates
01What does the Corrosion Resistant Plates range include?
The range covers weathering steel plate: Corten A to ASTM A242, Corten B to ASTM A588, S355J0W to EN 10025-5, IRS M-41 for Indian Railways and JIS G 3125 grades. Specify the standard and grade you need.
02What is weathering steel?
It is a low-alloy steel with copper, chromium and nickel that forms a dense, adherent rust layer in the open air. The layer slows further corrosion, so the steel can often be left unpainted.
03What is the difference between Corten A and Corten B?
Corten A (ASTM A242) has higher phosphorus and chromium and is used mainly in thinner sections. Corten B (ASTM A588) has low phosphorus and added vanadium, and suits heavier welded structures such as bridges.
04Is corrosion resistant plate the same as stainless steel?
No. Weathering steel resists atmospheric corrosion only; it still rusts on the surface. For acids, sea water or process chemicals, a stainless steel or nickel alloy is needed.
05Where should weathering steel not be used?
Avoid surfaces that stay wet, are buried or immersed, or face heavy salt spray or aggressive industrial fumes. The protective layer needs regular wetting and drying to form.
06Is S355J0W the same as Corten?
S355J0W is the European weathering grade in EN 10025-5. It serves the same purpose as Corten grades, but the standards differ, so order the grade your specification names.
07Can weathering steel be welded and cut?
Yes. Plates can be cut to size and shape, and welded with standard procedures. Use weathering consumables for exposed welds so they match the colour and corrosion resistance of the plate.
08What plate sizes are available?
Send the thickness, width, length and quantity you need. Availability is confirmed against the grade and dimensions in your enquiry.
09Which certificates should my RFQ request?
Request an EN 10204 3.1 or 3.2 certificate showing the standard, grade, full chemistry and mechanical results, plus heat traceability, impact tests and any railway or third-party inspection required.
10How do I obtain a price and delivery offer?
Send the standard and grade, dimensions, quantity, cutting needs, documents, destination and required date. Include export packing and delivery terms when relevant.