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Gangsteel – China's Leading Mill-Direct Supplier & Exporter of EN 10025-4 S355ML Weldable Fine Grain Steel Plates
As a reliable global steel exporter focused on premium structural solutions, Gangsteel offers superior en 10025 4 s355ml steel plate from our 15,000+ ton stock. EN 10025-4 S355ML is a weldable fine-grain structural steel via TMCP, with 355 MPa min yield and -50°C toughness. Specs: 6-200 mm thick, 1500-4200 mm wide, up to 18 m long. Produced by HBIS/Shougang mills, PED/CE certified (2014/68/EU), with EN 10204-3.1/3.2 MTCs. NDT: 100% UT EN 10160 S2/E2; optional MT/RT. Density: 7.85 g/cm³; hardness: 140-170 HBW. Third-party: DNV, ABS, Lloyd’s, BV, CCS, RINA, KR.
For weldable plates in cold apps like offshore jackets or cold bridges, S355ML cuts weight 15-20% vs. S355J2. Explore en 10025 4 High Strength Structural Steel for series options. Gangsteel stocks S355ML (20-120 mm) for 3-7 day delivery, Z25/Z35 available.
EN 10025-4 S355ML is TMCP weldable fine-grain steel per EN 10025-4:2004 (2019 update), for high-strength low-temp use. "S355" = 355 MPa yield; "M" = thermomechanical; "L" = -50°C ≥27J KV. TMCP (900-1100°C roll, 20-40°C/s cool) refines ferrite-bainite grains (ASTM 8-10), boosting ductility (≥22% A5) and weldability (CEV ≤0.39, no preheat to 80 mm).
Vs. normalized S355NL, TMCP lowers stresses, improves isotropy for fatigue (170 MPa limit). Z-test: Z25/Z35 (EN 10164) for tension welds. NDT: UT S2/E2 standard. Specs: 6-200 mm t, 1500-4200 mm w, 6-18 m l; density 7.85 g/cm³; hardness 140-170 HBW. Eurocode 3 compliant, for DNV-OS-B101 offshore. See S355ML Meaning EN 10025-4 Structural Steel Supplier. Gangsteel ensures EU-approved sourcing.
Fine-grain via Al-kill, low CEV for HAZ integrity.
|
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 |
*CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15; actual 0.30-0.36. Nb/V pin grains. Vs. S355J2 (CEV 0.45), 40% less preheat. VD optional for S<0.008%. Details: S355ML Chemical Composition EN 10025-4 Supplier.
TMCP yield ratio <0.78; transverse min; long. +5-10%.
|
Thickness (mm) |
Yield ReH (MPa) min |
Rm (MPa) |
A5 (%) min |
KV2 (J, -50°C long.) min |
|---|---|---|---|---|
|
≤16 |
355 |
470–630 |
22 |
27 |
|
16<t≤40 |
345 |
470–630 |
22 |
27 |
|
40<t≤63 |
335 |
470–630 |
22 |
27 |
|
63<t≤100 |
305 |
470–630 |
23 |
27 |
|
100<t≤150 |
275 |
450–630 |
23 |
27 |
|
150<t≤200 |
255 |
450–630 |
24 |
27 |
Hardness 140-170 HBW; KIc >140 MPa√m (-40°C); fatigue 170 MPa (10^7 cycles). UT S2/E2; density 7.85 g/cm³. Curves: S355ML Mechanical Properties EN 10025-4 Plate Supplier.
S355ML mid-range; vs. family on specs.
|
Property/Grade |
S275M/ML |
S355M |
S355ML |
S420M/ML |
|---|---|---|---|---|
|
Yield (MPa, ≤16 mm) |
275 |
355 |
355 |
420 |
|
Impact Temp (Long.) |
-20°C(M)/-50°C(ML) |
-20°C |
-50°C |
-20°C(M)/-50°C(ML) |
|
Min KV (J) |
40/-20°C; 27/-50°C |
40 |
27 |
40/-20°C; 27/-50°C |
|
CEV Max |
0.38 |
0.39 |
0.39 |
0.43 |
|
Elong. A5 Min (%) |
24 |
22 |
22 |
19 |
|
Tensile (MPa) |
370-530 |
470-630 |
470-630 |
520-680 |
|
No-Preheat (mm) |
100 |
80 |
80 |
60 |
|
Wt Save vs S355J2 |
5-10% |
15-20% |
15-20% |
20-25% |
|
Cost + vs S355J2 (USD/t) |
+40-60 |
+80-120 |
+100-150 |
+150-200 |
|
Apps |
Light frames |
Bridges |
Offshore cold |
Cranes |
|
Gangsteel Stock |
High |
V. High |
Highest |
Med |
S355ML > S355M for arctic (-50°C KV); vs S275ML, 30% stronger for thinner; vs S420ML, better ductility/weld. 60% market share. See S355M vs S355ML EN 10025-4 Steel Plate Comparison Supplier.
TMCP aids global swaps.
|
Standard |
Equiv Grade |
Notes |
Scenario |
|---|---|---|---|
|
ASTM |
A572 Gr.50 + Z35 |
Yield match; -50°C add. |
US bridges. |
|
JIS |
SM490AW |
-40°C KV; weathering. |
Japanese coastal. |
|
GB/T |
Q355E |
Low-temp exact. |
China-EU. |
|
API 2W |
Gr.50 |
S355ML LT better. |
Gulf platforms. |
|
EN 10025-6 |
S355QL |
Strength same; S355ML cheaper. |
Field QT alt. |
Indicative. Full: S355ML Equivalent Material EN 10025-4 Plate Supplier.
S355ML optimizes Eurocode 3, 18% less steel in tension via higher ReH.
Notes: Interpass 150°C; ER50-2. FEA 2% hardening. Eco: 97% recycle, 20% CO2 save. Gangsteel V-50° bevel, UT S4.
To 92+ countries: Felixstowe 6 days.
Q1: S355ML vs S355M difference?
A: Impact: S355ML ≥27J -50°C for cold (offshore/Arctic); S355M ≥40J -20°C for temperate. Yield/chem same—ML for < -20°C (DNV-OS-B101). Gangsteel stocks both.
Q2: Welding preheat for S355ML?
A: No for ≤70 mm (CEV 0.30-0.37); E7018 H4. >80 mm: 70-120°C (EN ISO 13916). Saves 50°C vs S355J2; CET data included.
Q3: S355ML for pressure vessels?
A: Yes, PED III (EN 13445); derate >63 mm. UT S3/E3; RT optional. Cost-effective vs QT; dual ASME/EN.
Q4: S355ML vs S355J2 price?
A: +100-140 USD/t for TMCP/-50°C; offset by 15-20% thinner. FOB 700-800 USD/t (25 mm); 10-15% vol discount.
Q5: Z35 for S355ML?
A: Z25 std; Z35 stocked (≥35% RA EN 10164 Cl.3) for tension welds; +15-25 USD/t. Norsok M-120 compliant.
Q6: ASTM equiv for S355ML?
A: A572 Gr.50 + Z35; yield match, -50°C add. A633 Gr.C alt for LT; TMCP finer HAZ. Dual-cert avail.
Q7: Custom S355ML lead time?
A: Stock 1-3 days; processed 2-5 days; mill 3-5 weeks. 95% OTIF; air <10 MT 24-48 hrs.
Gangsteel—Weldable Excellence, Worldwide Reach.
Email: admin@gangsteel.com WhatsApp/WeChat/Mobile: +86 135 9887 9167 Website: https://gangsteel.net/
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