Products Description
S355JR steel plate is a low-alloy high-strength structural steel specified in the European standard EN 10025-2.
It is a highly versatile, stable-performance, and machinable structural steel material widely used in construction, bridges, machinery manufacturing, pressure vessels, steel structure engineering, and other fields.
Steel plates supplied by Yuxin Steel offer the following advantages:
1. High strength and load-bearing capacity
The product's yield strength ≥ 355 MPa, significantly exceeding ordinary carbon steel, meeting load requirements for various medium to large-scale structures.
2. Easy to process and form
Suitable for cutting, bending, rolling, drilling, and welding, making it ideal for mass production and deep processing services.
3. Stable performance and high reliability
Manufactured strictly according to EN standards, the product offers stable mechanical properties and high quality consistency.
4. Versatile Applications
Suitable for diverse structures ranging from general building steel frameworks to bridges, and from mechanical equipment to construction vehicles.
5. Significant Cost Advantage
Compared to high-alloy or specialty steels, S355JR offers competitive pricing while maintaining sufficient performance, making it the preferred choice for most projects.
Basic Parameters
| Parameter | Details |
|---|---|
| Execution Standard | Core standard: EN10025-2 (European standard). Equivalent to Q355B in GB/T1591-2018 (Chinese national standard) |
| Yield Strength | ≥355MPa for thickness ≤16mm; ≥345MPa for 16-40mm; ≥335MPa for 40-63mm. Yield strength decreases by approximately 10MPa for every 25mm increase in thickness |
| Tensile Strength | 470-630MPa for thickness ≤40mm; gradually decreases to 450-600MPa for thickness above 40mm |
| Elongation Rate | ≥22% for thickness 3-40mm; slightly decreases with increasing thickness, minimum no less than 20% |
| Impact Toughness | Impact energy ≥27J at 20℃; some standards require ≥34J, capable of withstanding dynamic loads at room temperature |
| Regular Specifications | Thickness: 6-200mm; Width: 1.5-4.8m; Length: 6-12m. Customized length cutting is available with a tolerance of ±5mm |
Chemical Composition
| Grade | S335JR | |||||||
| Element | C | Si | Mn | P | S | N | Cu | |
| Content (max, %) | thickness ≤ 40 mm | thickness ＞40 mm | ||||||
| 0.24 | 0.24 | 0.55 | 1.60 | 0.035 | 0.035 | 0.012 | 0.55 | |
Product Applications
S355JR steel plate offers a well-balanced combination of strength, toughness, and workability, making it suitable for a wide range of applications:
Building Steel Structures
Commonly used in high-rise office building frames and large-span factory portal frames, it reduces steel consumption by approximately 15% compared to Q235B. Additionally, it is ideal for load-bearing structures in large-span buildings such as stadiums.
Construction Machinery
Manufactures 25-ton truck crane outriggers, concrete mixer drum bodies, and excavator load-bearing components, meeting equipment demands for high strength and durability.
Transportation and Marine
Employed in truck chassis, trailer components, and non-critical load-bearing parts like ship decks and bulkheads.
Other Applications
Also used for machine tool beds, press frames, and wind turbine tower foundation components, suited for scenarios requiring high static load strength or harsh outdoor environments.
Delivery Condition
- Standard Delivery Condition: S355JR steel plates are delivered in a hot-rolled condition by default. Normalized condition is also available upon request. Normalizing refines the grain structure, further enhancing material toughness and microstructural uniformity. Please specify your required delivery condition before placing an order.
- Surface Treatment: This product typically features a black-skinned surface finish. Alternatives such as sandblasting for rust removal are also available.
Our Certificates
Customer Visit
FAQ
Q: What are your payment terms?
A: Our payment terms: 30% T/T deposit and 70% on B/L copy or L/C at sight, before you pay the balance. We will show you product and packaging photos.
Q: How long is your delivery time?
A: Generally, it takes 10-15 working days for stock, and 20-30 working days if there is no stock. According to the order quantity
Q: Can you accept customization?
A: Yes. Can be customized according to customer requirements
Q: How about the MOQ? If my first order is small, will you accept it?
A: We will try our best to support your trial order quantity, so even if it is 1 piece or 1 kg, we can start cooperation; because we are confident to make a second order with the company.
Q: How to ensure quality?
A: The factory test certificate is provided with the shipment. If necessary, a third-party inspection can be accepted.
Q: How about your after-sales service?
A: As a professional steel export company, we provide promotion and technical support for all questions and questions.
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