EN 10025-4 S460M TMCP Structural Steel Plate supplier

EN 10025-4 S460M TMCP Structural Steel Plate

Gangsteel – China's Leading Mill-Direct Supplier & Exporter of EN 10025-4 S460M Thermomechanically Rolled Weldable Fine Grain Structural Steel Plates

As a top-tier Chinese steel exporter, Gangsteel offers premium en 10025 4 s460m steel plate with immediate availability from our extensive 15,000+ ton warehouse stock. EN 10025-4 S460M is a high-strength, fine-grain structural steel processed via TMCP (Thermomechanical Controlled Processing), delivering minimum yield strength of 460 MPa at room temperature and excellent weldability. Our plates are available in thicknesses 6–200 mm, widths up to 4200 mm, and lengths to 18 m, produced by certified mills like HBIS and Angang with full PED/CE marking (2014/68/EU) and EN 10204-3.1/3.2 certificates. Third-party verification from DNV, ABS, Lloyd’s, BV, or TÜV ensures seamless integration into global projects.

Summary

EN 10025-4 S460M represents the pinnacle of thermomechanically rolled structural steels, offering superior strength-to-weight performance for demanding engineering applications. With a nominal yield of 460 MPa (reducing progressively for thicker sections), it surpasses conventional S355 or S420 grades by 20–30% in load-bearing capacity, enabling lighter designs that cut material costs and transportation expenses. Key advantages include low carbon equivalent (CEV ≤ 0.46) for preheat-free welding up to 100 mm thick, fine-grain microstructure for enhanced toughness (≥40J at -20°C), and Z-direction options (Z25/Z35) to prevent delamination in tension-stressed welds.

This grade excels in high-rise buildings, heavy cranes, bridge girders, offshore substructures, and pressure pipelines where fatigue resistance and ductility under cyclic loading are critical. Compared to quenched-and-tempered alternatives like S460QL (EN 10025-6), S460M provides equivalent strength at lower cost and better field weldability, making it the go-to choice for fabricators worldwide. Gangsteel stocks S460M in popular sizes (20–120 mm thick) for 3–7 day delivery, supporting projects from European wind farms to Middle Eastern mega-structures.

Chemical Composition (Ladle Analysis, % max unless noted)

S460M's alloy design minimizes alloying elements while optimizing for low CEV, ensuring crack-resistant welds and consistent hardenability. All values comply with EN 10025-4:2004 (reaffirmed 2019).

*CEV formula: C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15. Actual CEV typically 0.40–0.44 for optimal weldability. Grain refiners (Nb, V, Ti) promote ASTM grain size 7–9 for superior impact properties. For normalized variants, see EN 10025-3 S460N; S460M's TMCP delivery yields finer, more uniform microstructure.

Mechanical Properties (Transverse Testing)

The TMCP process in S460M refines ferrite-pearlite structure, boosting yield and elongation while maintaining Charpy V-notch toughness. Properties are guaranteed transverse to rolling direction; longitudinal values are typically 5–10% higher.

Hardness (Brinell): ~170–220 HBW for weldable grades. Fatigue strength: >250 MPa at 2×10^6 cycles (R=0.5). For -50°C toughness, upgrade to S460ML. All data per EN 10025-4; Gangsteel plates undergo 100% ultrasonic testing (EN 10160 Class S2/E2) for internal soundness.

Equivalent International Grades

S460M's specifications harmonize with major global codes, easing substitution in ASTM, JIS, or GB projects. Always confirm via end-user specs for Z-testing or additional NDT.

Note: S460M is not directly equivalent to S460N (normalized); TMCP delivery state provides better isotropy. For Arctic use, pair with S460ML.

Top Exported EN 10025-4 Grades: Real-Time Stock Insights

Based on monthly export volumes to Europe, Middle East, and Asia-Pacific, these grades dominate inquiries. Each en 10025 4 High Strength Structural Steel variant is backed by immediate availability and custom processing.

1. en 10025 4 s355ml steel plate – Global bestseller for -50°C toughness in wind energy.
2. en 10025 4 s460ml steel plate – High-strength leader for offshore oil & gas.
3. en 10025 4 s355m steel plate – Versatile workhorse for bridges and buildings.
4. en 10025 4 s460m steel plate – Preferred for heavy machinery upgrades.
5. en 10025 4 s420ml steel plate – Essential for jack-up platforms and cranes.
6. en 10025 4 s420m steel plate – Reliable for high-load industrial frames.
7. en 10025 4 s275ml steel plate – Go-to for cost-effective low-temp projects.
8. en 10025 4 s275m steel plate – Entry-level high-strength option.

Applications & Design Considerations for S460M

EN 10025-4 S460M shines in scenarios demanding high yield with ductility, reducing section sizes by 20–25% over S355JR while preserving safety factors per Eurocode 3 (EN 1993-1-1). Primary uses include:

• Heavy Construction: Crane booms, excavator arms, and mining equipment where payload optimization is key.
• Infrastructure: Bridge decks, viaducts, and tunnel linings benefiting from fatigue resistance > S355 (Δσ = 280 MPa limit state).
• Offshore/Onshore Energy: Wind turbine bases, penstocks, and subsea manifolds—TMCP minimizes residual stresses for leak-proof welds.
• Building & Fabrication: Skyscraper columns and seismic frames; Z35 option mitigates lamellar tearing in corner welds.

Design tips: Use fillet welds with matching consumables (e.g., E50xx electrodes); max heat input 4 kJ/cm to retain HAZ toughness. Corrosion allowance: 0.1–0.2 mm/year in C3 environments; hot-dip galvanizing compatible up to 150 g/m². Lifecycle: 50+ years with proper CP (cathodic protection) in marine settings.

Gangsteel's S460M supports EN 1090 EXC4 execution class, with pre-cut bevels (30° single V) and mill-edge milling for automated welding lines.

Why Choose Gangsteel for Your S460M Needs

• Unrivaled Stock Levels: 2,000+ tons of S460M ex-warehouse—90% inquiries fulfilled in 3–5 days.
• Cost Efficiency: Mill-direct pricing 50–120 USD/ton below market, with volume discounts for 100+ MT orders.
• Value-Added Services: Precision plasma cutting (±1 mm tolerance), drilling (up to 100 mm dia.), rolling (min. bend radius 3t), and anti-corrosion priming (epoxy 80 µm DFT).
• Quality Assurance: Full traceability via heat/charge numbers; optional NACE MR0175/ISO 15156 for sour service.
• Proven Track Record: Supplied to Vestas wind towers, Saipem FPSOs, and ArcelorMittal bridges—zero rejects in 10+ years.

Exported to 80+ countries, we handle logistics to Hamburg (8 days), Busan (12 days), or Dubai (10 days) with FOB/CIF terms.

FAQ

Q1: What distinguishes S460M from S460ML?

A: The primary difference is impact toughness: S460M guarantees ≥40J at -20°C, while S460ML extends to -50°C (≥27J) for sub-Arctic conditions. Chemistry, strength, and weldability are identical—choose ML for service temperatures below -20°C.

Q2: Is preheating necessary for welding S460M plates?

A: Generally no, thanks to CEV ≤0.46 allowing cold starts up to 80 mm thick. For >100 mm or restrained joints, recommend 100–150°C preheat per EN 1011-2. We provide heat-specific PWHT guidelines.

Q3: Can S460M be used in pressure vessel applications?

A: Yes, with PED Category II/III certification—suitable for non-fired vessels per EN 13445. Yield derating applies above 63 mm; always include UT Class 1 for seamless performance.

Q4: What's the price premium for S460M over S355M?

A: Typically 120–200 USD/ton higher, but 20–25% thinner sections yield net savings of 15–20% on total steel tonnage. Current FOB Shanghai: ~850–950 USD/ton (20 mm thick).

Q5: Do you supply S460M with through-thickness properties?

A: Yes—Z25 (≥25% reduction) standard; Z35 (≥35%) available ex-stock for critical welds like T-joints in crane hooks or jacket nodes.

Q6: How does S460M compare to ASTM A913 Gr.65?

A: Near-identical yield (460 vs. 450 MPa) and CE, but S460M's TMCP excels in weld HAZ toughness. A913 requires coil production; our plates are discrete mill-rolled for plate-specific flatness.

Q7: What's the delivery time for custom S460M orders?

A: Stock: 3–7 days global. Custom mill run: 4–6 weeks. Express cutting/processing adds 1–2 days—air shipment for urgent <10 MT.

Contact Gangsteel for Competitive Quotes & Fast Shipment

Elevate your next project with reliable EN 10025-4 S460M from the source you trust.

Email: admin@gangsteel.com WhatsApp/WeChat/Mobile: +86 135 9887 9167 Website: https://gangsteel.net/

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