EN S355JR Steel Plate
High-strength non-alloy structural steel plate (EN 10025-2) with 355 MPa min yield strength. Offers superior strength-to-weight ratio, excellent weldability, and impact toughness for heavy-duty structural applications.
| Material | Carbon Steel (High Strength) |
|---|---|
| Grade / Standard | EN S355JR (1.0045) |
| Thickness | 6mm - 300mm |
| Width | 1000mm - 4020mm |
| Length | 3000mm - 18000mm |
| Delivery Condition | hot_rolled / normalized / tmcp / as_rolled |
| Surface Treatment | bare / shot_blasting / painting / coated |
| MOQ | 1 Piece / 5 Tons |
| Delivery Time | 15-30 Days / In Stock |
| Loading Port | Tianjin / Shanghai / Qingdao |
Comprehensive Overview of EN S355JR Steel Plate
EN S355JR is a high-strength, non-alloy structural steel plate conforming to the European standard EN 10025-2. The “S” signifies it as a structural grade, while “355” indicates a minimum yield strength of 355 MPa (for thicknesses ≤ 16 mm). The “JR” suffix confirms that the steel has been impact tested at room temperature (20°C) with a minimum energy of 27J. This grade is globally recognized for providing a superior strength-to-weight ratio, making it an essential material for heavy-duty engineering and infrastructure projects.
Exceptional Mechanical Properties and Weldability
As a micro-alloyed steel, EN S355JR offers significantly higher yield and tensile strength (470-630 MPa) compared to standard S235 or S275 grades. Despite its increased strength, it maintains excellent weldability using all conventional methods such as GMAW, SAW, and SMAW. Its low carbon equivalent (CEV) ensures that high-integrity structural joints can be achieved with minimal pre-heating, making it highly efficient for complex workshop fabrication and on-site assembly.
Primary Applications in Heavy Engineering
Due to its robust performance under load, EN S355JR is widely utilized in the construction of high-rise buildings, bridge components, offshore structures, and transmission towers. It is also a preferred choice for the manufacturing of heavy machinery chassis, crane arms, earthmoving equipment, and large-scale storage silos. Its ability to provide structural stability while reducing overall material weight makes it a cost-effective solution for modern engineering challenges.
Why Source EN S355JR from Shandong Tanglu
Shandong Tanglu Metal Material Co., Ltd. is a premier supplier of EN S355JR plates with a monthly supply capacity of 10,000 tons. We stock a full range of thicknesses from 6mm to 300mm, all accompanied by original EN 10204 3.1 Mill Test Certificates. Our state-of-the-art processing center provides precision flame cutting, plasma cutting, and surface preparation. With strategic logistics from Tianjin, Shanghai, and Qingdao ports, we deliver high-quality European standard steel to global B2B clients with unmatched efficiency.
📐 Dimension & Size Table
| Thickness (mm) | Width (mm) | Length (mm) | Weight (kg/m²) |
|---|---|---|---|
| 6 | 1500-3000 | 3000-12000 | 47.1 |
| 8 | 1500-3000 | 3000-12000 | 62.8 |
| 10 | 1500-3000 | 3000-12000 | 78.5 |
| 12 | 1500-3500 | 3000-12000 | 94.2 |
| 16 | 1500-3500 | 3000-12000 | 125.6 |
| 20 | 1500-4020 | 3000-18000 | 157.0 |
| 25 | 1500-4020 | 3000-18000 | 196.3 |
| 30 | 1500-4020 | 3000-18000 | 235.5 |
| 40 | 1500-4020 | 3000-18000 | 314.0 |
| 50 | 1500-4020 | 3000-12000 | 392.5 |
| 60 | 1500-3500 | 3000-12000 | 471.0 |
| 80 | 1500-3500 | 3000-12000 | 628.0 |
| 100 | 1500-3000 | 3000-12000 | 785.0 |
| 150 | 1500-3000 | 3000-12000 | 1177.5 |
| 200 | 1500-3000 | 3000-12000 | 1570.0 |
| 250 | 1500-2500 | 3000-12000 | 1962.5 |
| 300 | 1500-2500 | 3000-12000 | 2355.0 |
* Custom sizes available upon request. Tolerances per relevant international standards.
🔬 Chemical Composition
| Element | Min | Max | Display Value | Note |
|---|---|---|---|---|
| C | - | 0.24 | ≤0.24 | For nominal thickness ≤ 40mm |
| Si | - | 0.55 | ≤0.55 | Deoxidation agent for grain stability |
| Mn | - | 1.60 | ≤1.60 | High manganese for enhanced strength |
| P | - | 0.035 | ≤0.035 | Strict impurity control for weld integrity |
| S | - | 0.035 | ≤0.035 | Low sulfur content for hot workability |
| N | - | 0.012 | ≤0.012 | Nitrogen control to prevent aging |
| Cu | - | 0.55 | ≤0.55 | Maximum allowable copper content |
* Chemical composition may vary by heat, thickness and specification. Please refer to the actual mill test certificate.
⚙️ Mechanical Properties
| Property | Value | Unit | Test Condition |
|---|---|---|---|
| Yield Strength | ≥355 | MPa | 355 MPa min for t ≤ 16mm, tested at 20°C |
| Tensile Strength | 470-630 | MPa | Standard tensile test per EN 10025-2 |
| Elongation | ≥20 | % | Tested in L0=5.65√S0 gauge length |
| Impact Energy | ≥27 | J | Charpy V-notch longitudinal test at +20°C (JR) |
* Values shown are minimum requirements unless otherwise stated.
📦 Commercial Information
| Packaging | Standard seaworthy export packing, bundled with steel strips and angle iron protection, with desiccant inside to prevent moisture. |
|---|---|
| Payment Terms | tt, lc, dp, western_union, paypal |
| Price Term | FOB / CFR / CIF / EXW |
| Supply Capacity | 10,000 Tons/Month |
| Loading Port | Tianjin / Shanghai / Qingdao |
Why Choose Our EN S355JR Steel Plate?
Certified EN 10025-2 High-Strength Quality
Our S355JR plates are rigorously manufactured to the highest European standards, providing a guaranteed 355 MPa yield strength. Every plate is delivered with a complete EN 10204 3.1 MTC, ensuring absolute material traceability and project safety.
Optimized for Heavy Fabrication & Welding
Despite its high strength, S355JR features a low carbon equivalent, ensuring exceptional weldability and ease of cold-forming. This reduces fabrication complexity and ensures high-integrity joints for critical structural components.
Massive Multi-Port Inventory & Fast Global Transit
We maintain one of the largest stocks of S355JR in China across Tianjin, Shanghai, and Qingdao. Our high-efficiency logistics chain guarantees rapid dispatch and timely delivery to international job sites within 15-30 days.
🏭 Applications of EN S355JR Steel Plate
EN S355JR is the premier choice for heavy-duty structural applications including high-rise steel frames, bridge construction, offshore platforms, and crane arms. Its superior strength-to-weight ratio also makes it ideal for manufacturing machinery chassis, transmission towers, and transport equipment where durability is non-negotiable.
📋 Quality & Certification
Our Certifications
- ✅ ISO 9001:2015
- ✅ CE Marking
- ✅ ABS
- ✅ DNV GL
- ✅ Lloyd's Register (LR)
- ✅ Bureau Veritas (BV)
- ✅ SGS Certified
Mill Certificate Type
- 📋 EN 10204 3.1
- 📋 EN 10204 3.2
- 📋 Original Mill Certificate
- 📋 Third Party Inspection Available
- 📋 Certificate of Origin
❓ Frequently Asked Questions
What is the main benefit of S355JR?
It provides higher yield strength (355 MPa) allowing for lighter but stronger structural designs.
What is the equivalent ASTM grade?
ASTM A572 Grade 50 is the most common American equivalent.
Is S355JR suitable for low temperatures?
The JR suffix means it is tested at +20°C; for lower temperatures, consider S355J0 (0°C) or S355J2 (-20°C).
Can it be custom cut?
Yes, we provide precision flame and plasma cutting services according to your drawings.
What is the MOQ?
Our minimum order quantity is 1 Piece / 5 Tons.
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EN S355JR Steel Plate
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