S275JR steel is a European structural steel grade that falls under the category of low-carbon mild steel. It is primarily used in construction and structural applications due to its excellent weldability and machinability.
The grade is characterized by its yield strength of 275 MPa, which makes it suitable for a variety of engineering applications. The primary alloying elements in S275JR include carbon (C), manganese (Mn), and silicon (Si), which contribute to its mechanical properties and overall performance.
Key Characteristics:
- Yield Strength: Minimum yield strength of 275 MPa.
- Tensile Strength: Typically ranges from 410 to 560 MPa.
- Ductility: Good elongation properties, typically around 20% in 50 mm.
- Weldability: Excellent, suitable for various welding processes.
Advantages:
- Versatility: Suitable for a wide range of applications, including beams, columns, and frames.
- Cost-Effectiveness: Generally lower cost compared to higher-strength steels.
- Ease of Fabrication: Good machinability and weldability.
Limitations:
- Corrosion Resistance: Moderate; may require protective coatings in aggressive environments.
- Strength Limitations: Not suitable for applications requiring high strength-to-weight ratios.
Products Specification
|
Gnee Grade : |
S275JR(1.0044) |
|
Specification: |
Thickness 8mm-300mm, Width: 1500-4020mm, Length: 3000-27000mm |
|
Standard: |
EN 10025 - 2 : 2004 Technical delivery conditions for non-alloy structural steels |
|
Approval By Third Party |
ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE |
|
Classification: |
non-alloy structural steels |
S275JR PLATE CHEMICAL COMPOSITION
| C | Mn | P | S | N | Cu | CEV |
| 0.22 max. | 1.5 max. | 0.04 max. | 0.04 max. | 0.012 max. | 0.55 max. | 0.42 max. |
S275JR PLATE MECHANICAL PROPERTIES
| Tensile strength, Rm, MPa (N/mm2) | 0,2% Yield strength, Rp0, 2min, (MPa) | Brinell hardness, HB max |
| 380-540 | 275 | 121 – 163 |
S275JR Plate Uses
The S275JR Plate finds diverse applications in various industries due to its excellent properties. Here are the applications of S275JR Plate in the following industries:
Oil & Gas Industries: S275JR plates are used in the oil and gas sector for the construction of storage tanks, pipelines, and structural components. They provide the necessary strength and durability required for handling the harsh conditions of the industry.
Chemical Industries: S275JR plates find applications in chemical industries where they are utilized in the fabrication of chemical storage tanks, reactors, and other equipment. The plates offer resistance to corrosion and can withstand the chemical substances involved.
Construction Industries: S275JR plates are extensively used in the construction sector for various purposes. They are employed in the construction of buildings, bridges, infrastructure projects, and structural components due to their high strength and versatility.
Offshore Pipelines and Pipe Works: S275JR plates are utilized in offshore pipelines and pipe works for their excellent strength and resistance to corrosion. They are suitable for withstanding the demanding offshore environments, ensuring the integrity of the pipelines and pipe systems.
Petrochemical Industry: S275JR plates are commonly employed in the petrochemical industry for the fabrication of storage tanks, process equipment, and structural components. The plates provide the necessary strength and resistance to chemical substances found in petrochemical processes.
Shipbuilding Industries: S275JR plates are used in shipbuilding industries for the construction of ship structures, hulls, and various components. Their high strength, durability, and weldability make them suitable for withstanding the challenging marine environment.
Hydraulic Applications: S275JR plates find applications in hydraulic systems and equipment. They are utilized in the manufacturing of hydraulic cylinders, supports, and structural components due to their strength and ability to withstand high-pressure environments.
Piping Systems: S275JR plates are employed in piping systems for their structural integrity and durability. They are used in the construction of pipelines, fittings, and other components where strength and reliability are crucial.
