bs en 10025-2 s355k2 structural steel plates

bs en 10025-2 s355k2 structural steel plates supplier

Gangsteel, a globally recognized leader in manufacturing and exporting structural steel plates, supplies high-quality EN 10025-2 S355K2 steel plates, tailored for construction, bridges, and heavy machinery applications in industries such as infrastructure, shipbuilding, and offshore engineering.

BS EN 10025-2 is the British version of the European standard for hot-rolled structural steels, with S355K2 offering superior strength, weldability, and enhanced impact resistance at -20°C. This article provides a comprehensive overview of bs en 10025-2 s355k2 structural steel plates, including chemical composition, mechanical properties, applications, and benefits, offering valuable insights for engineers, fabricators, and procurement specialists.

en 10025-2 s355k2 Introduction to DIN EN 10025-2 Standard

DIN EN 10025-2 specifies the technical delivery conditions for flat and long products of hot-rolled non-alloy structural steels. The standard covers grades like EN 10025-2 S235JR steel, EN 10025-2 S235J0, EN 10025-2 S235J2 steel, EN 10025-2 S275JR, EN 10025-2 S275J0 steel, EN 10025-2 S275J2 steel, EN 10025-2 S355JR steel, EN 10025-2 S355J2 steel, EN 10025-2 S355K2 steel, EN 10025-2 S355JR+N, EN 10025-2 S355J0, and EN 10025-2 S450J0 steel.

Among these, en 10025-2 s355k2 stands out for its fine grain structure, improved machinability, and enhanced impact resistance at -20°C, making it suitable for structural components exposed to dynamic loads.

Gangsteel produces en 10025-2 s355k2 plates in compliance with DIN EN 10025-2, ensuring traceability and quality certification for global projects. For related grades, explore EN 10025 S355J2G3 material steel plates and EN 10025 S355J2 N material, or refer to the BS EN 10025-2 material grade overview.

en 10025-2 s355k2 Chemical Composition

The chemical composition of en 10025-2 s355k2 is tightly controlled to achieve optimal mechanical properties while maintaining weldability and formability. The table below outlines the typical composition per DIN EN 10025-2:

Key Notes:

• Carbon: Limited to 0.20% to ensure good weldability and prevent brittleness, critical for structural applications.
• Manganese: Up to 1.60% enhances strength and toughness without compromising ductility.
• Phosphorus and Sulfur: Low levels (0.030% P, 0.025% S) improve impact resistance, especially at subzero temperatures (tested at -20°C for K2).
• Silicon and Copper: Contribute to atmospheric corrosion resistance, making en 10025-2 s355k2 suitable for outdoor structures.

Gangsteel’s en 10025-2 s355k2 plates undergo stringent chemical analysis to meet DIN EN 10025-2 requirements, with options for additional testing such as ultrasonic inspection.

en 10025-2 s355k2 Mechanical Properties

En 10025-2 s355k2 offers excellent mechanical properties, making it versatile for structural engineering. The table below summarizes its key properties per DIN EN 10025-2 (for plates up to 16 mm thickness):

Highlights:

• Yield Strength: Minimum 355 MPa ensures structural stability under heavy loads, ideal for bridges and buildings.
• Tensile Strength: The 470–630 MPa range provides robustness for dynamic applications.
• Elongation: 20% ductility supports forming and welding without cracking.
• Impact Toughness: 40 J at -20°C ensures performance in cold climates, outperforming EN 10025-2 S355J2 steel (27 J at -20°C).

Compared to lower grades like EN 10025-2 S275JR (yield 275 MPa) or EN 10025-2 S235JR (yield 235 MPa), en 10025-2 s355k2 offers higher strength and toughness, allowing for thinner plates and weight savings in designs.

en 10025-2 s355k2 Thickness Tolerance

Thickness tolerance for en 10025-2 s355k2 is governed by EN 10029, which specifies tolerances for hot-rolled plates 3 mm thick or above. For S355K2 (non-alloy structural steel with ReH ≥ 360 N/mm²), the default is Class A, unless otherwise specified. The table below summarizes EN 10029 Class A thickness tolerances:

Key Notes:

• Class A: Standard tolerance for non-alloy steels; tighter classes (B, C, D) are available for precision applications.
• Measurement: Tolerances apply outside ground areas; for plates with trimmed edges, tolerances are measured at least 100 mm from the edge.
• Customization: Gangsteel offers plates with special tolerances upon request, ensuring compliance with EN 10029 for en 10025-2 s355k2.

These tolerances ensure dimensional accuracy for structural applications, reducing fabrication issues.

en 10025-2 s355k2 Equivalent Material

En 10025-2 s355k2 has several equivalent materials in international standards, allowing for global sourcing and substitution. The table below details equivalent grades by country/standard:

Key Notes:

• ASTM A572 Gr 50: Closest US equivalent, with yield strength of 345 MPa (slightly lower than 355 MPa), but similar tensile properties.
• DIN ST52-3: Offers equivalent low-temperature toughness, widely used in Europe.
• JIS SM490YA: Matches for hot-rolled structural steel, with good weldability.
• GB Q345E: Chinese equivalent, suitable for cold-forming and impact testing at -40°C.
• Selection Tip: Equivalents may vary slightly in chemical limits; verify with specific project requirements.

For more on equivalents, refer to Gangsteel’s BS EN 10025-2 material grade guide.

en 10025-2 s355k2 Benefits

En 10025-2 s355k2 stands out in the EN 10025-2 family for its balanced properties, offering several benefits:

1. High Strength-to-Weight Ratio: With a yield strength of 355 MPa, it enables lighter structures without sacrificing load-bearing capacity, reducing material costs in bridges and high-rise buildings.
2. Superior Low-Temperature Toughness: Tested at -20°C with 40 J impact energy, en 10025-2 s355k2 performs reliably in cold environments, outperforming EN 10025-2 S355J2 steel (27 J at -20°C).
3. Excellent Weldability: Low carbon equivalent (CEV ≈ 0.45) allows welding without preheating in many cases, facilitating efficient fabrication for large structures.
4. Atmospheric Corrosion Resistance: Additions of silicon and copper provide better resistance to weathering, making it suitable for outdoor applications like offshore platforms.
5. Cost-Effectiveness: Offers higher strength than EN 10025-2 S275J2 steel or EN 10025-2 S235J2 steel, allowing for material savings while maintaining performance.
6. Compliance and Certification: Meets DIN EN 10025-2 and BS EN 10025-2 material grade requirements, with Gangsteel providing CE marking and EN 10204 3.1/3.2 certificates.

en 10025-2 s355k2 Weldability and Fabrication

En 10025-2 s355k2 exhibits excellent weldability due to its low carbon equivalent, compatible with standard processes like SMAW, GTAW, and SAW. Key considerations:

• Preheat: Minimal or no preheating required for plates up to 25 mm, reducing fabrication time.
• Post-Weld Heat Treatment (PWHT): Not typically needed, but recommended for thicker plates (>40 mm) to relieve stresses.
• Filler Materials: Use low-alloy fillers matching the strength of en 10025-2 s355k2, such as E7018 or ER70S-6.
• Fabrication: High ductility (20% elongation) supports bending, rolling, and forming for complex structural components.

Gangsteel supplies en 10025-2 s355k2 in normalized conditions, enhancing grain refinement for improved fabrication performance.

en 10025-2 s355k2 Applications

En 10025-2 s355k2 is versatile and widely used in:

• Construction: For bridges, buildings, and stadiums, where high strength and low-temperature toughness are required.
• Offshore Engineering: In platforms and wind turbines, leveraging its corrosion resistance and impact toughness.
• Heavy Machinery: For cranes, excavators, and mining equipment, where durability under dynamic loads is critical.
• Shipbuilding: In hulls and superstructures, benefiting from its weldability and strength.
• Energy Sector: For pipelines and storage tanks, similar to EN 10025 S355J2G3 material steel plates but with enhanced toughness.

Gangsteel’s en 10025-2 s355k2 plates are available in thicknesses from 6–300 mm, with options for cut-to-size and cladding for specialized applications.

Why Choose Gangsteel for en 10025-2 s355k2?

Gangsteel is a global leader in supplying DIN EN 10025-2 S355K2 plates, offering:

• Certified Quality: Plates undergo ultrasonic testing, Charpy impact tests at -20°C, and chemical analysis to meet EN 10025-2 standards.
• Customization: Available in thicknesses from 6–300 mm, with options for normalization, cut-to-size, and beveling for efficient fabrication.
• Global Supply: Competitive pricing and reliable delivery from China to worldwide markets, with stock in key ports for fast turnaround.
• Technical Support: Expert guidance on selecting S355K2 versus other grades like EN 10025-2 S355JR+N or EN 10025-2 S275J2 steel.

Gangsteel Solution for en 10025-2 s355k2

En 10025-2 s355k2 offers exceptional strength, weldability, and low-temperature toughness, making it ideal for construction, offshore, and heavy machinery applications. Gangsteel’s high-quality S355K2 plates ensure reliability and compliance with EN 10025-2 standards. For equivalent standards, explore our BS EN 10025-2 material grade guide.

en 10025-2 s355k2 FAQ

What is the difference between S355K2 and S355J2?
S355K2 offers higher impact toughness (40 J at -20°C) compared to S355J2 (27 J at -20°C), making it better for colder environments.

What is the equivalent of S355K2 in ASTM?
S355K2 is equivalent to ASTM A572 Grade 50, with similar strength and weldability.

What is the hardness of S355K2?
The typical Brinell hardness (HB) of S355K2 is 150–200 HB, depending on thickness and heat treatment.

What is S355K2 steel used for?
S355K2 is used in construction, bridges, offshore platforms, and heavy machinery due to its high strength and toughness at -20°C.

What is the chemical composition of S355K2?
S355K2 has a maximum carbon content of 0.20%, manganese up to 1.60%, and low phosphorus/sulfur levels for enhanced toughness, as detailed in the composition table above.

What are the mechanical properties of S355K2?
S355K2 has a minimum yield strength of 355 MPa, tensile strength of 470–630 MPa, and impact toughness of 40 J at -20°C, as summarized in the properties table.

Is S355K2 a high-strength steel?
Yes, S355K2 is a high-strength low-alloy (HSLA) structural steel with a yield strength of 355 MPa, suitable for demanding structural applications.

What is the difference between S355K2 and S355K2G3?
S355K2G3 is an older designation with similar properties; S355K2 is the current EN 10025-2 grade with enhanced specifications.

en 10025-2 s355k2 Production Specifications Table

Gangsteel offers a wide range of production capabilities for en 10025-2 s355k2. The table below summarizes the available specifications:

Key Notes:

• Standard Sizes: Plates in 6–100 mm thickness, 2000–2500 mm width, and 6000–12000 mm length are typically in stock for immediate delivery.
• Custom Orders: Thicker plates or non-standard sizes are available with short lead times.
• Global Reach: Gangsteel’s production in China supports worldwide delivery, with efficient logistics for urgent projects.

Long-Tail Keywords

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