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S355 Steel Plates – High Strength Structural Steel for Construction & Engineering
S355 Steel Plates are high-strength low-alloy structural steel plates manufactured according to EN 10025 standards and widely used in construction, infrastructure, bridge fabrication, offshore structures, industrial buildings, pressure equipment and heavy engineering projects. With a minimum yield strength of 355 MPa, S355 structural steel offers an excellent combination of strength, weldability, toughness and durability. Available in popular grades including S355JR, S355J0, S355J2 and S355J2+N, these plates are preferred by engineers, EPC contractors, fabricators and project consultants worldwide. At Triton Alloys Inc., we maintain ready stock of EN 10025 S355 Steel Plates in multiple thicknesses, widths and lengths with Mill Test Certificates (MTC), third-party inspection and global export support from Mumbai, India.
Need S355 Steel Plates for an Upcoming Project?
Get fast quotations, stock availability, MTC certificates and worldwide shipping support from Triton Alloys Inc.
Why Choose S355 Structural Steel Plates from Triton Alloys Inc.?
At Triton Alloys Inc., we don't just sell steel — we deliver assured performance and on-time reliability. Here's what makes our S355 Plates the preferred choice:
● Certified to EN Standards:
Every plate complies with EN 10025-2, EN 10025-3, and EN 10025-4 standards, ensuring consistency in mechanical and chemical properties.
● Comprehensive Stock Range:
We maintain a ready stock of S355 Plates in various thicknesses, widths, and lengths for immediate delivery.
● Mill Test Certificates (MTC) & Third-Party Inspection:
All plates are accompanied by MTC EN 10204 3.1 / 3.2 and can undergo third-party inspections from recognized agencies.
● Custom Cut-to-Size Services:
We offer plasma cutting, shearing, and drilling services to deliver plates as per your exact project requirements.
● Logistics & Delivery Network:
Our efficient logistics team ensures timely dispatch across India and international destinations.
● Competitive Market Pricing:
With long-standing supplier relationships and bulk procurement advantages, we provide industry-best pricing without compromising quality.
Looking for S355 Plates in Ready Stock?
Available in S355JR, S355J0, S355J2, S355J2+N, S355K2, and other EN 10025 structural steel grades.
Technical Specifications of S355 Steel Plates (EN 10025)
| Specification | S355 material |
| Test certificates | with 3.2 certification to EN10204 |
| Uses |
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| Value Added Services |
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| Length | Up to 12m meters long |
| Thickness | 5 mm to 200mm |
| Width | Up to 3.5 meters wide |
| Grade | J2 / JR / JO |
| Standards | EN 10025, DIN 17102, EN 10025-2: 2004, DIN 17100, ASTM, JIS G3106, GB/T700, |
| Brands | Thyssen, Dillinger, Clabecq and Mills |
Other Structural Grade
- ◇ BS EN 10025
- ◇ ASME/ASTM A 572 Gr 50
- ◇ S960, S355, S275, S235, S460, S890, S690, S420
- ◇ API 2Y 50/60. API 2W 50/60, API 2H Gr50, API 2H 50
- ◇ BS EN 10225
- ◇ S460, S355, S500, S420,
Mechanical Properties of S355 Structural Plates
| Standard | Material | EN Number | Tensile Stress 100< 400mm | Tensile Stress 3 to 100mm | Yield Stress | 16-40mm | < 16mm | 40-63mm | 80-100mm | 63-80mm | 150-200mm | 100-150mm | 250-400mm | 200-250mm | Min. Elongation (3-40mm) | Temperature CVN | Energy CVN |
| EN10025-2:2004 | S355J2+N | 1.0577 | 450 to 600 | 470 to 630 | 345 | 355 | 355 | 315 | 325 | 285 | 295 | 265 | 275 | 22 | -20C | 27J | |
| EN10025-2:2004 | S355K2+N | 1.0596 | 450 to 600 | 470 to 630 | 345 | 355 | 355 | 315 | 325 | 285 | 295 | 265 | 275 | 22 | -20C | 40J | |
| EN10025-2:2004 | S355N | 1.0545 | 450 to 600 | 470 to 630 | 345 | 355 | 355 | 315 | 325 | 285 | 295 | 52 | 22 | -20C | 40J | ||
| EN10025-2:2004 | S355NL | 1.0546 | 450 to 600 | 470 to 630 | 345 | 355 | 355 | 315 | 325 | 285 | 295 | 22 | -20C | 47J | |||
| EN10025-2:2004 | S355M | 1.8823 | 430 to 590 | 440 to 630 | 345 | 355 | 355 | 325 | 325 | 320 | 22 | -20C | 47J | ||||
| EN10025-2:2004 | S355ML | 1.8834 | 430 to 590 | 440 to 630 | 345 | 355 | 355 | 325 | 325 | 320 | 22 | -20C | 47J |
Need Custom Cut S355 Steel Plates?
Plasma cutting, profile cutting, beveling, drilling, machining, and edge preparation services available.
Applications of S355 Steel Plates
S355 structural steel plates are widely used in infrastructure, industrial and engineering projects requiring high strength, excellent weldability and long-term reliability.
- Bridge Construction: Highway bridges, railway bridges and flyover structures.
- Offshore Platforms: Offshore oil & gas structures and marine support systems.
- Industrial Buildings: Warehouses, factories, power plants and steel structures.
- Mining & Heavy Equipment: Earthmoving machinery and mining equipment fabrication.
- Shipbuilding & Marine Engineering: Structural components and support systems.
- Oil & Gas Projects: Storage tanks, platforms and process structures.
- Infrastructure Projects: Airports, stadiums, metro rail and public works projects.
S355 Steel Plates Equivalent Grades
S355 Equivalent BS 4360 (British / Indian)
S355 DIN 17100 Equivalent
Chemical Composition of S355 Steel Sheet
| Standard | Material | EN Number | C (max) > 40mm | C (max) <40 | Mn | Si | S | P | Nb | Al | V | Cr | Ti | Ni | N | Mo | Cu |
| EN10025-2:2004 | S355J2+N | 1.0577 | 0.24 | 0.23 | 1.7 | 0.55 | 0.035 | 0.035 | - | - | - | - | - | - | - | - | 0.60 |
| EN10025-2:2004 | S355K2+N | 1.0596 | 0.24 | 0.23 | 1.7 | 0.55 | 0.035 | 0.035 | - | - | - | - | - | - | - | - | 0.60 |
| EN10025-3:2004 | S355N | 1.0545 | 0.22 | 0.22 | 0.85 to 1.75 | 0.55 | 0.030 | 0.035 | 0.06 | 0.015 | 0.14 | 0.35 | 0.06 | 0.55 | 0.017 | 0.13 | 0.60 |
| EN10025-3:2004 | S355NL | 1.0546 | 0.20 | 0.20 | 0.85 to 1.75 | 0.55 | 0.025 | 0.030 | 0.06 | 0.015 | 0.14 | 0.35 | 0.06 | 0.55 | 0.017 | 0.13 | 0.60 |
| EN10025-4:2004 | S355M | 1.8823 | 0.16 | 0.16 | 1.7 | 0.55 | 0.030 | 0.035 | 0.06 | 0.015 | 0.14 | 0.35 | 0.06 | 0.55 | 0.027 | 0.13 | 0.60 |
| EN10025-4:2004 | S355ML | 1.8834 | 0.16 | 0.16 | 1.7 | 0.55 | 0.025 | 0.030 | 0.06 | 0.015 | 0.14 | 0.35 | 0.06 | 0.55 | 0.027 | 0.13 | 0.60 |
Get Latest S355 Steel Plate Prices
Receive competitive pricing for bulk quantities, export orders, EPC projects, fabrication shops, and structural contractors.
Available Types of S355 Structural Steel Plates
We supply EN 10025 S355 steel plates in multiple grades including S355JR, S355J2, S355JO, and S355K2+N ,etc. Each plate type offers unique mechanical properties and applications across construction, bridges, offshore, and heavy engineering.
Ready Stock of S355 Structural Steel Plates in India | Triton Alloys Inc.
Structural EN10025-2 Plates
- ◇ S355K2+N + Norsok M120/MDS Y05 6 to 80 mm
- ◇ S355J2+N 5 to 300 mm
- ◇ S235JR 5 to 200 mm
- ◇ S355K2+N 6 to 150 mm
Structural EN10025-3 Plates
- ◇ S460NL 6 to 80 mm
- ◇ S355NL 6 to 200mm
- ◇ S355N 6 to 200 mm
- ◇ S460N 6 to 80 mm
Structural EN10025-4 Plates
- ◇ S460ML 10 to 100 mm
- ◇ S355ML 8 to 100 mm
Structural EN10025-6 Plates
- ◇ S890QL 6 to 100 mm
- ◇ S690QL1 6 to 150 mm
- ◇ S690QL 6 to 200 mm
- ◇ S1100QL 6 to 40 mm
- ◇ S960QL 6 to 100 mm
Trusted S355 Steel Plate Supplier & Exporter
Supplying EN 10025 structural steel plates to construction, infrastructure, offshore, shipbuilding, mining, oil & gas, and heavy engineering industries worldwide.
EN 10025 S355 Structural Steel Plates Price List | Buy S355 Structural Steel Plates at Best Rates 2026
| Product Description | Price Range (USD) |
| Hot Rolled Carbon Structural Plates Sheet S355 S355jr S355j0 | US $ 300 / Ton |
| Mild Hot Rolled Sheet S355 | US $ 500-600 / Ton |
| S355 Hot Rolled Mild Carbon Plates | US $ 520-780 / Ton |
| S355 10mm~50mm Annealed Grade Black Hot Rolled CS Plates | US $ 700-800 / Ton |
| S355 Plates 50mm 7mm Thick Marine Grade | US $ 400-800 / Ton |
| Hot Rolled Industrial S355 20mm Thick Plates | US $ 549-636 / Ton |
| S355 8mm MS Plates Hot Rolled | US $ 550 /Ton |
| S355 Mild 24 Gauge Galvanized Sheet | US $ 740-770 / Ton |
Current S355 Structural Steel Plate Price List in India and UK Markets
Prices of steel keep fluctuating based on supply and demand. S355 Steel Price in India starts at $0.80 to $1.22 per kg. The prices of this grade in the UK start at $ 2.33 per kg.
Note: Steel prices fluctuate based on factors such as raw material costs, global demand, supply chain conditions, and currency exchange rates. The prices mentioned here are indicative for 2026 and subject to change without prior notice. For the most accurate and up-to-date pricing, please contact our sales team directly at Triton Alloys Inc.
S355 steel plate is a premium high-strength structural grade widely used in construction, infrastructure, and engineering applications. Known for its robust performance, S355 steel plates offer a minimum yield strength of 355 MPa at 16mm thickness, making them ideal for heavy-duty structures and demanding environments.
| at 16mm Structural Grade | at nominal thickness 16mm Minimum Yield Strength | |
| N/mm2 (MPa) | ksi | |
| S355 | 355 N/mm2 | 50 000 ksi |
S355 Plates Tensile Strength
| Grade | at Nom thickness between 3mm and 16mm Tensile Strength MPa |
| S355 | 470 – 630 MPa |
S355 Steel Plate Dimensions | Latest Size Chart 2025
| Unit weight | Per single plates, a maximum of 20.5 tonnes is allowed (dependent on grade) |
| Plate width | Maximum length: 3,950 mm (dependent on thickness and grade) |
| Plate thickness | 8–200 millimetres (dependent on steel grade; up to 300 mm upon request) |
| Ordered weight | At least 20 tonnes per line item are required. |
| Plate length | Maximum height is 18,700 mm (up to 24,000 mm available upon request, dependent on thickness and grade) |
S355 Steel Plate Thickness Range Chart (2025 Updated)
Discover the updated 2025 thickness range for premium S355 structural steel plates. At Triton Alloys Inc., we supply S355 plates in standard thicknesses starting from 6mm and extending up to 150mm. This versatile range caters to various industrial, construction, and fabrication needs where strength and durability are critical. Check the chart below for available thickness options and choose the ideal specification for your next structural steel project.
S355 Plates 25 TO 50 Thickness
| Sizes | Kg's per each | |||||||
| 25 | 30 | 32 | 35 | 38 | 40 | 45 | 50 | |
| 2000 x 1000 | 392.50 | 471.00 | 502.40 | 549.60 | 596.60 | 628.00 | 706.50 | 785.00 |
| 2500 x 1200 | 588.75 | 706.50 | 753.60 | 824.25 | 894.90 | 942.00 | 1059.75 | 1177.50 |
| 3000 x 1500 | 883.13 | 1059.75 | 1130.40 | 1236.38 | 1342.35 | 1413.00 | 1589.63 | 1766.25 |
| 4000 x 2000 | 1570.00 | 1884.00 | 2009.60 | 2198.00 | 2386.40 | 2512.00 | 2826.00 | 3140.00 |
| 8000 x 2000 | 3140.00 | |||||||
| 10000 x 2000 | ||||||||
| 10000 x 2400 | 4710.00 | |||||||
| 13000 x 2400 | 6123.00 | 5652.00 | 6028.80 | 6594.00 | 7159.20 | 7536.00 | 8478.00 | |
| 12000 x 3000 | 7347.60 | 7837.44 | ||||||
S355 Plates 4.5 TO 20 Thickness:
| Sizes | Kg's per each | |||||||
| 4.5 | 5.0 | 6.0 | 8.0 | 10 | 12 | 16 | 20 | |
| 2000 x 1000 | 70.65 | 78.50 | 94.20 | 125.60 | 157.00 | 188.40 | 251.20 | 314.00 |
| 2500 x 1200 | 105.98 | 117.75 | 141.30 | 188.40 | 235.50 | 282.60 | 376.80 | 471.00 |
| 3000 x 1500 | 158.96 | 176.63 | 211.95 | 282.60 | 353.25 | 423.90 | 565.20 | 706.50 |
| 4000 x 2000 | 282.60 | 314.00 | 376.80 | 502.40 | 628.00 | 753.60 | 1004.80 | 1256.00 |
| 8000 x 2000 | 565.20 | 628.00 | 753.60 | 1004.80 | 1256.00 | 1507.20 | 2009.60 | 2512.00 |
| 10000 x 2000 | 706.50 | 942.00 | 1246.00 | 1256.00 | 1570.00 | 1884.00 | 2512.00 | |
| 10000 x 2400 | 942.00 | 1130.40 | 1507.20 | 1884.00 | 2260.80 | 3014.40 | 3768.00 | |
| 13000 x 2400 | 1224.60 | 1469.52 | 1959.36 | 2449.20 | 2939.04 | 3918.72 | 4898.40 | |
| 12000 x 3000 | 1695.60 | 2260.80 | 2826.00 | 3391.20 | 4521.60 | 5652.00 | ||
S355 Plates 100 TO 150 Thickness
| Sizes | Kg's per each | |||||||
| 300WA | 110 | 120 | 115 | 140 | 125 | 130 | 100 | 150 |
| 2000 x 1000 | 1727.00 | 1570.00 | ||||||
| 2500 x 1200 | 2590.50 | 2826.00 | 2708.25 | 3297.00 | 2943.75 | 3061.50 | 2355.00 | 3532.50 |
| 3000 x 1500 | - | |||||||
| 4000 x 2000 | 6908.00 | 6280.00 | ||||||
S355 Plates 55 TO 90 Thickness
| Sizes | Kg's per each | |||||||
| 300WA | 70 | 60 | 55 | 65 | 80 | 75 | 90 | 85 |
| 2000 x 1000 | 1099.00 | 942.00 | 863.50 | 1020.50 | 1256.00 | 1177.50 | 1413.00 | 1334.50 |
| 2500 x 1200 | 1648.50 | 1413.00 | 1295.25 | 1530.75 | 1884.00 | 1766.25 | 2119.50 | 2001.75 |
| 3000 x 1500 | 2119.50 | 1942.88 | - | |||||
| 4000 x 2000 | 4396.00 | 3768.00 | 3450.00 | 4082.00 | 5024.00 | 4710.00 | 5652.00 | 5338.00 |
Looking for S355 Plates in Ready Stock?
Available in S355JR, S355J0, S355J2, S355J2+N, S355K2, and other EN 10025 structural steel grades.
Standard Symbols Used To Refer S355 Structural Steel Plates
- ◇ S –Structural Steels
- ◇ W = Weathering Steels
- ◇ J2 / K2 / JR / JO – material toughness
- ◇ 355 –minimum yield strength
- ◇ N = Normalized
India, Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Venezuela, Ecuador, Netherlands, Brazil, Colombia, Ghana, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Qatar, Russia, Vietnam, South Africa, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago, Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia.
Mumbai, Thane, Navi Mumbai, Pune, Pimpri-Chinchwad, Vadodara, Kolkata, Gurgaon, Ahmedabad, New Delhi, Bengaluru, Chennai, Surat, Bhopal, Ulsan, Faridabad, Houston, Dubai, Seoul, Hyderabad, Singapore, Abu Dhabi, Tehran, Calgary, Noida, Riyadh, London, Coimbatore, Jakarta, Istanbul, Bangkok, Kuwait City, Sharjah, Muscat, Edmonton, Busan, Mexico City, Doha, Jeddah, Aberdeen, Cairo, Geoje-si, Perth, Santiago, Chandigarh, Indore, Kuala Lumpur, Rio de Janeiro, Dammam, Melbourne, Madrid, La Victoria, Bogota, Lahore, Los Angeles, Algiers, Chiyoda, Ankara, Ho Chi Minh City, Toronto, Hong Kong, Rajkot, Brisbane, Petaling Jaya, Ernakulam, Secunderabad, Gimhae-si, Al Jubail, Port-of-Spain, Thiruvananthapuram, Milan, Atyrau, Lagos, Hanoi, Howrah, Sydney, Ahvaz, Karachi, New York, Caracas, Vung Tau, Al Khobar, Manama, Montreal, Granada, Courbevoie, Visakhapatnam, Ludhiana, Moscow, Dallas, Haryana, Colombo.
Certifications, Mill Test Reports & Global Quality Assurance
- ◇ EN 10025-2: European Standard Compliance
- ◇ ISO 9001: Quality Management System
- ◇ ISO 14001: Environmental Management System
- ◇ PED 2014/68/EU: Pressure Equipment Directive Certification
- ◇ EN 10204 3.1 Mill Test Certificates
- ◇ Material Traceability Documentation
- ◇ Custom Certification Packages Available
Frequently Asked Questions (FAQs)
S355 steel plate is a high-strength structural steel manufactured according to EN 10025 standards. It provides a minimum yield strength of 355 MPa and is widely used in construction, bridges, offshore structures, industrial buildings and heavy engineering projects.
The main difference lies in impact testing temperatures. S355JR is tested at +20°C, S355J0 at 0°C and S355J2 at -20°C. Lower testing temperatures indicate improved toughness for colder operating environments.
S355 steel plates offer a minimum yield strength of 355 MPa, making them suitable for heavy structural applications requiring high load-bearing capacity.
S355 steel plates are commonly used in bridge construction, offshore structures, power plants, industrial buildings, mining equipment, marine structures, oil & gas projects and heavy fabrication.
Depending on application and specification requirements, S355 is often compared with ASTM A572 Grade 50, ASTM A656 Grade 50 and other high-strength structural steels. Exact equivalency should always be verified against project specifications.
Yes. S355 steel plates offer excellent weldability and can be processed using conventional welding, cutting and fabrication methods widely used in structural engineering projects.
S355 steel plate prices depend on grade, thickness, dimensions, quantity, processing requirements and current steel market conditions. Contact Triton Alloys Inc. for updated pricing and stock availability.
Triton Alloys Inc. is a trusted supplier, stockist and exporter of S355 steel plates in Mumbai, India, supplying certified EN 10025 plates with MTC documentation and worldwide delivery.
Related S355 Structural Steel Plate Grades
Compare specifications, toughness ratings and applications of various S355 grades.
