EN 10025 S355ML Thermomechanical Steel Plate Supplier

 

 

EN 10025 S355ML Thermomechanical Steel Plate Supplier

Gangsteel – China's Leading Mill-Direct Supplier & Exporter of EN 10025 S355ML Thermomechanical Steel Plates

Gangsteel is your reliable source for EN 10025 S355ML thermomechanical steel plates. We maintain over 5,000 tons of S355ML in permanent stock, covering thickness 6–200 mm, width 1500–4200 mm, length up to 18 m. All plates are produced by strict TMCP process with low CEV ≤ 0.39, fine grain structure, and guaranteed –50 °C impact toughness ≥ 27 J.

Full EN 10204-3.1/3.2 certificates + third-party inspection (DNV, ABS, LR, BV, CCS, KR, TÜV) available. Z25/Z35 through-thickness quality in stock. 100 % UT EN 10160 S2/E2 standard.

We ship worldwide in 3–7 days and provide cutting, beveling, drilling, rolling, and priming services.

 

What is EN 10025 S355ML Thermomechanical Steel Plate?

EN 10025 S355ML is a thermomechanically rolled (TMCP) weldable fine-grain structural steel specified in EN 10025-4:2004 (current version 2019).

The "M" in S355ML specifically means thermomechanical rolling – a controlled hot-rolling process followed by accelerated cooling that produces a very fine-grained microstructure without separate heat treatment. This gives S355ML superior combination of strength, toughness, and weldability compared to normalized grades.

Key advantages of the TMCP process in S355ML:

• Lower internal stresses → better flatness and dimensional stability
• Finer grain size (ASTM 9–11) → excellent –50 °C toughness
• Low CEV → no preheating required up to 80 mm thickness
• Higher resistance to lamellar tearing (ideal for Z35 quality)

S355ML is the thermomechanical version of S355NL and the low-temperature version of S355M. It is the most demanded grade when both high strength and –50 °C impact toughness are required.

For detailed designation explanation, read S355ML Meaning EN 10025-4 Structural Steel Supplier.

 

Chemical Composition (Ladle Analysis, % max)

Element	C	Si	Mn	P	S	Nb	V	Al min	Ti	Cr	Ni	Mo	Cu	N	CEV max
S355ML	0.14	0.50	1.60	0.025	0.020	0.05	0.10	0.020	0.05	0.30	0.50	0.10	0.55	0.015	0.39

Typical actual CEV = 0.32–0.37 → outstanding weldability. Full chemical analysis: S355ML Chemical Composition EN 10025-4 Supplier

 

Mechanical Properties (Transverse, t ≤ 63 mm)

Thickness (mm)	ReH min (MPa)	Rm (MPa)	A5 min (%)	KV min (J) at –50 °C
≤ 16	355	470–630	22	27
>16 ≤ 40	345	470–630	22	27
>40 ≤ 63	335	470–630	22	27

Density: 7.85 g/cm³ Hardness: 140–170 HBW Full mechanical data: S355ML Mechanical Properties EN 10025-4 Plate Supplier

 

Available Specifications & Testing

• Thickness: 6–200 mm (20–120 mm most popular in stock)
• Width: 1500–4200 mm
• Length: up to 18 000 mm
• Z-quality: Z25 standard, Z35 large stock
• NDT: 100 % ultrasonic testing EN 10160 S2/E2 (S3/E3 optional)
• Surface: shot-blasted + primer or mill finish
• Certification: EN 10204-3.1/3.2, PED, CPR, all major class approvals

 

Why Customers Worldwide Choose Gangsteel S355ML

• Biggest ready stock in Asia (5,000+ tons S355ML)
• Factory-direct price – 60-120 USD/ton lower than traders
• Full processing capability (cutting, beveling, drilling, rolling, priming)
• Z35 and all approvals ex-stock
• Exported to 90+ countries with perfect documentation
• One-stop service – stock → processing → loading → shipping

 

FAQ – Quick Answers on EN 10025 S355ML

Q1: S355ML vs S355M difference?A: Only impact temperature. S355ML = –50 °C (≥27 J), S355M = –20 °C (≥40 J). Everything else identical. Use S355ML when service temp < –20 °C.

Q2: Preheating required for welding?A: No preheat needed up to 80 mm (CEV ≤ 0.39). >80 mm: 75–100 °C max.

Q3: Z35 availability?A: Yes – very large stock of S355ML + Z35 (≥35 % reduction of area), ready for immediate delivery.

Q4: Density and hardness?A: Density 7.85 g/cm³, hardness 140–170 HBW.

Q5: NDT standard?A: 100 % UT EN 10160 S2/E2 included. S3/E3, MT, PT on request.

Q6: What specifications can you supply?A: Thickness 6–200 mm, width 1500–4200 mm, length up to 18 m. Z25/Z35, all class approvals, normalized optional.

Q7: ASTM equivalent?A: A572 Gr.50 + Z35 with –50 °C impact supplement, or A633 Gr.C.

 

Contact Gangsteel Today

Need EN 10025 S355ML thermomechanical plates? Contact us now for best price and fastest delivery.

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

Gangsteel – Real Factory. Real Stock. Real Fast.

 

Others property of en10025-4 s355ml steel plate