S355JR is a widely used structural steel grade known for its exceptional strength, versatility, and suitability for various construction and engineering applications. It is part of the European standard EN 10025, which defines the technical delivery conditions for hot-rolled structural steel.
Key characteristics and applications of S355JR steel include:
- High Strength: S355JR boasts a minimum yield strength of 355 MPa, making it suitable for applications where structural integrity and load-bearing capacity are crucial. It is often used in the construction of buildings, bridges, and industrial machinery.
- Structural Use: S355JR is primarily employed in structural applications due to its reliable structural integrity. It plays a critical role in providing support and load-bearing capabilities in construction projects.
- Weldability: This steel grade is known for its excellent weldability, allowing for the fabrication of welded structures and components with ease. Welded joints using S355JR maintain their structural integrity and durability.
- Formability: S355JR is formable, which means it can be easily shaped through processes like bending, rolling, and cold forming. This property is valuable for creating various shapes and profiles needed in construction and manufacturing.
- Versatility: S355JR mild steel plates find applications in various industries, including automotive, construction, machinery, and general engineering. They are used to manufacture a wide range of components and structures, from structural beams to automotive parts.
- Conformance to Standards: S355JR steel complies with European standards (EN 10025), ensuring consistent quality and performance in demanding structural applications.
- Surface Finish Options: Depending on the application, S355JR plates can have different surface finishes, such as hot-rolled, cold-rolled, or coated to enhance corrosion resistance.
In conclusion, S355JR steel is a versatile and widely used structural steel grade known for its high strength, ease of fabrication, and compliance with industry standards. Its robust mechanical properties make it an ideal choice for engineers and manufacturers seeking reliable and durable materials for various construction and engineering projects.
Why Choose P&D Northern Steels for S355JR Plates
When working with structural steel, consistency and dependable supply are essential. Our approach is centred around supporting customers throughout their entire project rather than simply supplying material.
A Supplier Focused on Practical Solutions
Every project has different requirements. Instead of taking a one size fits all approach, we work with each customer to understand the demands of their application. This allows us to recommend the most suitable plate thicknesses, finishes and processing options for a smooth fabrication process.
Long Established Knowledge of Structural Steels
Over many decades we have built up a strong understanding of how structural steels behave in real world conditions. Our experience covers construction, engineering, machinery repair and fabrication work which means we can offer guidance that is grounded in practical use rather than theory.
Dependable Supply Chain
We work closely with long standing mill partners and suppliers. This stable supply chain helps ensure that the S355JR plates we provide meet required specifications and arrive when needed. Customers rely on us when material availability or timing is critical.
Support Beyond the Initial Order
Our service does not end once the plates are delivered. We work with customers throughout ongoing projects whether they require further plates, adjustments, guidance or technical clarification. This makes us a reliable long term partner for companies that regularly work with structural materials.
Speak to Our Team Today
If you would like to discuss S355JR plate for your project, our team is available to help. We can provide product advice, cutting options and information on current stock levels. Whether you are working on structural fabrication, machinery repairs or large construction applications, we can support you in choosing the right material.
Contact us on 01706 848811 or complete the enquiry form and a member of our team will respond promptly.
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Frequently Asked Questions About S355JR Steel
The JR designation refers to the material’s impact performance at room temperature. It indicates that the steel has been tested for impact resistance at 20 degrees Celsius which confirms its suitability for general structural applications.
No. While all three grades share similar strength levels, they differ in impact test requirements. S355J0 is tested at 0 degrees Celsius and S355J2 is tested at minus 20 degrees Celsius. S355JR is tested at room temperature. Projects in colder climates or exposed conditions may require J0 or J2.
S355JR is not considered a mild steel. Mild steel usually has a significantly lower yield strength. S355JR is classified as a structural steel with higher strength and better load bearing capability.
S355JR plate has a minimum yield strength of 355 MPa which means it can withstand substantial load before deforming. This is one of the main reasons it is used in structural frameworks, machinery bases and load bearing components.
Yes. S355JR has excellent weldability. It contains low levels of carbon which helps maintain joint quality and reduce the risk of cracking. Most standard welding methods can be used with correct procedures.
S275 is a lower strength structural steel with a yield strength of 275 MPa. S355JR provides a stronger alternative with improved load bearing performance. S275 is suitable for lighter duty work while S355JR is selected for more demanding applications.
Yes. S355JR can be galvanised to improve corrosion resistance. Galvanised S355JR plate is often used in outdoor structures, plant equipment and environments where moisture is present.
S355JR does not provide natural corrosion resistance. It requires protective coatings, galvanising or painting if used in environments where rust formation is likely.
Yes. S355JR has good formability. It can be cold formed, bent and rolled to achieve various shapes and profiles. This makes it ideal for both simple and complex fabrication projects.
S355JR plate is widely used in construction, civil engineering, transport, manufacturing, machinery repair, agricultural equipment and general fabrication. Its versatility makes it suitable for both small scale workshop projects and large structural builds.
S355JR maintains its performance at moderate temperatures but it is not a high temperature steel. Applications involving sustained heat may require a grade designed specifically for elevated temperature resistance.
No. Pressure vessels require specific grades that comply with standards like EN 10028. S355JR is a structural steel and is not intended for the high pressure requirements of vessel construction.
S355JR is typically supplied in hot rolled condition but can be provided with cold rolled or coated finishes depending on the application. Surface finish may affect corrosion resistance, appearance and fabrication requirements.
If your project requires a structural steel plate with good strength, dependable weldability and high versatility, S355JR is a strong choice. Our team can help you evaluate suitability based on your specific application requirements.
Yes, S355JR can be used outdoors, but it does not resist corrosion naturally. Protective coatings, galvanising or paint systems are recommended for long term exposure to moisture or weather.
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Applications:
Structural -
Grades:
S355JR
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Standards:
EN10025-2 -
Contact Us Today
P&D Northern Steels are leading UK suppliers of S355JR Steel. We have supplied S355JR Steel to organisations in a variety of sectors for the last 50 years. With extensive stock levels, exceptional quality and customer service, we are experienced steel stockholders which can supply steel for a number of sectors. Please get in touch on 01706 848811 or fill in the .