S275 Carbon Steel
We are S275 Carbon Steel Manufacturers, Suppliers, and Exporters in Mumbai, India. STEEL MART is an ISO 9001:2015 certified company established in 1986, with decades of experience in supplying high-quality carbon steel products to various industries. We specialize in manufacturing and supplying S275 Carbon Steels (EN 10025-2 S275JR / S275JO / S275J2 / 1.0044) that meet national and international quality standards for structural engineering, construction, bridge fabrication, and machinery manufacturing applications. S275 Carbon Steel is a widely specified low carbon unalloyed structural steel known for its minimum yield strength of 275 MPa, tensile strength of 410-560 MPa, outstanding weldability, superior ductility, and reliable cold forming properties. With carbon content restricted below 0.21%, S275 allows effortless conventional welding without pre-heating, making it a cornerstone steel grade for load-bearing structures. S275 is typically supplied in hot rolled, normalized, or control rolled condition, ensuring uniform mechanical properties, impact resistance, and structural stability. This carbon steel grade is widely used for manufacturing structural beams, columns, plates, bridge girders, storage tanks, equipment frames, flanges, and welded fabrications.
Our S275 Carbon Steels are 100% Prime – Tested & Guaranteed, ensuring precise chemical composition, dimensional accuracy, and consistent mechanical properties. Each product is supplied with proper Mill Test Certificates (MTC) confirming compliance with EN 10025-2 / BS standards. STEEL MART follows strict quality control procedures and ensures timely delivery.
What is S275 Carbon Steel?
S275 Carbon Steel (EN 10025-2 S275JR / S275JO / S275J2 / 1.0044) is an unalloyed low carbon structural steel grade suitable for general construction, civil engineering, bridges, and industrial equipment requiring reliable yield strength, high impact toughness, and exceptional weldability. Supplied in plates, sheets, angles, channels, and structural sections, it provides excellent formability and structural integrity.
275 MPa Yield Strength
Guarantees minimum yield strength of 275 MPa for dependable structural load bearing capacity.
Exceptional Weldability
Low carbon equivalent enables seamless welding with SMAW, GMAW, and SAW methods.
High Formability
Allows easy cold bending, shearing, pressing, and hole punching without cracking.
Charpy V-Notch Toughness
Available in JR (27J at 20°C), JO (27J at 0°C), and J2 (27J at -20°C) impact testing sub-grades.
Structural Reliability
Uniform chemical composition and grain size ensure consistent performance in heavy frames.
Full Traceability
Supplied with complete chemical heat analysis and EN 10204 3.1 Mill Test Certificates.
Why Choose STEEL MART for S275 Carbon Steel
STEEL MART is the preferred choice for purchasing S275 Carbon Steel due to its strong reputation for quality and reliability. With over 40 years of experience in the steel industry, the company ensures that every product meets strict industry standards. The company follows strict quality inspection procedures to ensure that every S275 Carbon Steel product meets international standards.
Each product is carefully tested to ensure durability, strength, and performance. Customers trust STEEL MART for consistent quality, competitive pricing, and timely delivery. The company maintains a large inventory to meet urgent and bulk requirements efficiently. In addition to S275 Carbon Steels, STEEL MART also supplies a wide range of carbon steel and alloy steel products for various industrial applications.
Chemical Composition of S275 Carbon Steel
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.21 % Max |
| Manganese (Mn) | 1.50 % Max |
| Silicon (Si) | 0.05 – 0.35 % |
| Sulphur (S) | 0.035 % Max |
| Phosphorus (P) | 0.035 % Max |
This chemical composition ensures optimal strength, ductility, and weldability.
Equivalent Grades of S275 Carbon Steel
| Standard | Equivalent Grade |
|---|---|
| EN 10025-2 | S275JR / S275JO / S275J2 / 1.0044 |
| BS 4360 | 43B / 43C |
| DIN / W.Nr. | St44-2 / 1.0044 |
| ASTM | A36 / A572 Grade 42 |
| IS | IS 2062 E275 / Fe 410 |
These equivalent grades ensure global compatibility across projects.
Mechanical Properties of S275 Carbon Steel
The mechanical properties of S275 Carbon Steels make them suitable for load-bearing structural and engineering fabrications. In hot rolled or normalized condition, this grade delivers guaranteed yield strength, balanced tensile strength, and high elongation.
Heat Treatment & Processing of S275 Carbon Steel
S275 Carbon Steels can be processed using standard heat treatment techniques.
Normalizing
Heated to 890°C–930°C and air-cooled for grain refinement.
Annealing
Heated to 850°C–890°C for maximum cold formability.
Stress Relieving
Heated to 550°C–650°C to remove residual welding stresses.
Flame / Plasma Cutting
Easily cut into custom structural shapes and plates.
S275 Carbon Steel Industry Applications
S275 Carbon Steels are widely used across multiple industrial sectors.
Construction & Building
Used for structural columns, beams, baseplates, and building trusses.
Bridge Fabrication
Used in bridge girders, stiffener plates, and support structures.
Heavy Equipment Frames
Used for machinery bed plates, crane booms, and equipment chassis.
Storage Tanks & Vessels
Used for oil storage tanks, silo structures, and welded ducting.
Agricultural & Off-Road
Used in trailer chassis, agricultural equipment frames, and brackets.
Marine & Offshore
Used for platform structural members, deck plating, and dock fittings.
Availability and Customization
At STEEL MART, we supply S275 Carbon Steels in a wide range of sizes and specifications.
| Thickness / Size | Plates from 3 mm to 250 mm, bars from 10 mm to 400 mm |
| Condition | Available in As-Rolled / Normalized / Control Rolled condition |
| Length | Standard lengths from 3 meters to 12 meters |
| Forms | Plates, Sheets, Round Bars, Flat Bars, Channels, Angles, Beams |
| Customization | Custom cut sizes, profiling, and beveling available as per drawings |
| Services | Plasma cutting, laser cutting, shearing, and drilling available |
| Certification | Supplied with Mill Test Certificates and inspection reports |
Our strict quality control ensures consistent quality.
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S275 Carbon Steel (EN 10025-2 S275JR / S275JO / S275J2 / 1.0044) is a highly reliable low carbon structural steel widely specified across construction, bridge engineering, heavy equipment manufacturing, and industrial fabrications. Featuring 275 MPa minimum yield strength, exceptional weldability, and balanced ductility, it provides long-term structural security for columns, beams, girders, plates, and frames. Supplied by STEEL MART with strict quality control and Mill Test Certification, S275 Carbon Steel is a cost-effective and dependable solution for engineering applications.
Frequently Asked Questions
Common answers regarding S275 Carbon Steel specifications and parameters.
S275 provides a guaranteed minimum yield strength of 275 MPa for structural thickness up to 16 mm.
They denote Charpy impact test temperatures: JR requires 27J at +20°C, JO requires 27J at 0°C, and J2 requires 27J at -20°C.
BS 4360 Grade 43B/43C, DIN St44-2 (1.0044), ASTM A36 / A572 Gr 42, and IS 2062 E275.
Yes, its low carbon equivalent allows all standard welding processes without pre-heating.
Plates, Sheets, Round Bars, Flat Bars, Angles, Channels, I-Beams, and custom profiled cut plates.