EN 10025-4 S460ML TMCP Structural Steel Plate supplier

EN 10025-4 S460ML TMCP Structural Steel Plate

Gangsteel – China's Leading Mill-Direct Supplier & Exporter of EN 10025-4 S460ML Thermomechanically Rolled Weldable Fine Grain Structural Steel Plates

As a premier Chinese steel exporter, Gangsteel provides high-quality en 10025 4 s460ml steel plate with instant access from our vast 15,000+ ton inventory. EN 10025-4 S460ML is a premium high-strength, fine-grain structural steel produced through TMCP (Thermomechanical Controlled Processing), offering a minimum yield strength of 460 MPa and exceptional low-temperature toughness down to -50°C. Available in thicknesses 6–200 mm, widths up to 4200 mm, and lengths to 18 m, our plates are manufactured by accredited mills such as HBIS and Shougang, complete with PED/CE certification (2014/68/EU) and EN 10204-3.1/3.2 mill test reports. Independent inspections by DNV, ABS, Lloyd’s, BV, or TÜV guarantee adherence to international project requirements.

What is EN 10025-4 S460ML TMCP Structural Steel Plate?

EN 10025-4 S460ML is a thermomechanically rolled (TMCP) weldable fine-grain structural steel standard under the European EN 10025-4:2004 specification (with 2019 amendments), designed for high-strength applications in cold environments. The "S" denotes structural steel, "460" indicates the nominal minimum yield strength in MPa, "M" signifies thermomechanical rolling delivery, and "L" specifies enhanced impact toughness at -50°C (≥27J Charpy V-notch). This grade leverages advanced TMCP technology—combining controlled hot rolling with accelerated cooling—to achieve a refined ferrite-bainite microstructure, delivering 20–35% higher load capacity than standard S355 or S420 steels while enabling 20–30% weight reductions in designs.

Key hallmarks include ultra-low carbon equivalent (CEV ≤ 0.46) for superior weldability without preheating (up to 120 mm thick), outstanding crack resistance in the heat-affected zone (HAZ), and through-thickness ductility (Z25/Z35 options) to avert lamellar tearing in critical welds. Unlike normalized grades (EN 10025-3 S460NL), S460ML's TMCP process minimizes residual stresses and enhances isotropy, making it indispensable for fatigue-prone structures. It complies with seismic Eurocode 8 and offshore DNV-OS-C101, powering everything from North Sea jackets to Alaskan pipelines. Gangsteel prioritizes S460ML stocking (especially 20–150 mm thick) for rapid 3–7 day worldwide dispatch, fueling mega-projects like Siemens Gamesa turbines and TotalEnergies platforms.

Chemical Composition (Ladle Analysis, % max unless noted)

The precise microalloying in S460ML optimizes hardenability and grain refinement, ensuring low CEV for hydrogen-induced cracking immunity and consistent performance in sub-zero conditions. Conforms to EN 10025-4 tolerances.

*CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; typical actual CEV 0.38–0.43 for enhanced weldability. Ni and Cu additions boost low-temperature ductility without compromising strength. For comparison, S460M (non-L) shares identical chemistry but tests at -20°C only. All heats include vacuum degassing for sulfur control <0.005% optional.

Mechanical Properties (Transverse Testing)

TMCP in S460ML yields a balanced ferrite-pearlite matrix with acicular ferrite islands, providing high yield, elongation, and KV toughness. Guaranteed transverse; longitudinal often exceeds by 8–12%.

Brinell hardness: 160–210 HBW. Fracture toughness KIc > 100 MPa√m at -40°C. Fatigue limit: ~280 MPa (10^7 cycles). 100% UT per EN 10160 S3/E3; optional HIC testing per NACE TM0284. For -20°C variant, see S460M.

Equivalent International Grades

S460ML equivalents facilitate global sourcing and code compliance, with TMCP advantages often superior in weld performance.

Caution: No perfect 1:1; S460ML's ML designation mandates -50°C verification. Pair with en 10025 4 s460m steel plate for milder climates.

Applications & Design Considerations for S460ML

S460ML's -50°C resilience and high yield make it the benchmark for extreme-condition engineering, slashing deadweight by 25% per Eurocode 3 buckling checks while upholding ductility in dynamic loads. Core sectors:

• Offshore Energy: Jacket foundations, monopiles, and flare booms—KV at -50°C prevents brittle failure in splash zones.
• Arctic Infrastructure: Pipeline supports, icebreaker ramps, and LNG tankers; Z35 mitigates tearing in gusset plates.
• Heavy Lifting: Mobile cranes (up to 1,000 t capacity) and shipyard gantry beams; fatigue S-N curve exceeds 10^6 cycles at 200 MPa.
• Renewables: Onshore wind tower flanges and hydroelectric penstocks; corrosion rate <0.05 mm/year with epoxy coatings.

Engineering notes: Limit interpass temp to 200°C for HAZ integrity; use ER55 electrodes for matching. Min. bend radius 4t (cold); hot forming at 900–1,100°C with normalization post-bend. Sustainability: Recyclable 100%, CO2 footprint 30% lower than QT steels via energy-efficient TMCP. Gangsteel offers pre-beveled edges (Y-groove 60°) and mill-certified flatness <3 mm/m for robotic welding.

Explore related grades like en 10025 4 s355ml steel plate for lighter duties.

Why Choose Gangsteel for Your S460ML Needs

Gangsteel stands out as the reliable partner for S460ML procurement:

• Extensive Inventory: 3,000+ tons dedicated to S460ML—95% orders dispatched in 2–5 days globally.
• Price Leadership: Factory-direct rates 60–140 USD/ton under competitors, with tiered rebates for 200+ MT.
• Integrated Services: CNC plasma cutting (±0.5 mm accuracy), trepanning holes (to 200 mm dia.), cylinder rolling (max OD 3 m), and shop-primed finishes (zinc-rich 100 µm).
• Certifications Galore: AD 2000 Merkblatt W0/W2, ISO 9001/14001, and sour service per NACE MR0175.
• Legacy of Success: Delivered to Hywind Scotland floating wind, Yamal LNG, and Bechtel refineries—with 100% on-time, zero claims.

We navigate exports to 90+ nations, from Antwerp (6 days) to Perth (14 days) under Incoterms 2020.

FAQ

Q1: How does S460ML differ from S460M?

A: Impact testing temperature: S460ML ensures ≥27J at -50°C for polar/offshore use, versus S460M's -20°C (≥40J). Yield, tensile, and chemistry align perfectly—select ML for environments below -20°C to meet Norsok M-120.

Q2: Does S460ML require preheating for welding?

A: No for thicknesses ≤80 mm; low CEV supports ambient starts with low-hydrogen fillers (H10 max). For 100+ mm or high restraint, 120–180°C preheat per ISO 15614-1. Heat analysis provided for custom WPS.

Q3: Is S460ML suitable for pressure equipment?

A: Affirmative—PED Annex I Category III certified, ideal for non-cryogenic vessels under EN 13480. Derate yield for t>63 mm; include RT per ASME VIII Div.1 if hybrid codes apply.

Q4: What's the cost uplift for S460ML versus S460M?

A: 100–180 USD/ton premium due to enhanced LT testing, but -50°C capability justifies it for risk-averse projects. FOB Tianjin quote: ~900–1,000 USD/ton (30 mm thick, ex-stock).

Q5: Are Z-direction plates available for S460ML?

A: Standard Z25 (≥25% RA); premium Z35 (≥35%) in stock for tension-loaded apps like node connections. Certified per EN 10164 Class 3.

Q6: How does S460ML stack up against A913 Gr.65?

A: Superior LT toughness (-50°C vs. -18°C standard); both HSLA, but S460ML's discrete plate form beats A913's coil variability. Ideal for EN vs. AASHTO crossovers.

Q7: Lead time for processed S460ML?

A: Raw stock: 2–4 days. Full fab (cut, bevel, prime): 3–6 days. Mill reroll for specials: 5–7 weeks; DHL for <5 MT emergencies.

Top Exported EN 10025-4 Grades

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.

Explore full specs, current pricing, and stock levels via our dedicated pages above.

Contact Gangsteel for Competitive Quotes & Fast Shipment

Secure your EN 10025-4 S460ML supply chain with the experts.

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

Gangsteel—Forging Resilience for Extreme Engineering. Stock ready, projects unstoppable.