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Gangsteel – China's Leading Mill-Direct Supplier & Exporter of S355 Material Properties EN 10025-4 Data Sheet Steel Plates
Gangsteel is your definitive source for S355 material properties EN 10025-4 data sheet steel plates, providing downloadable, heat-specific data sheets with verified mechanical, chemical, and physical properties for precise engineering and compliance. Under EN 10025-4:2004 (2019 revision), the S355 family (primarily S355M and S355ML) delivers a minimum yield strength of 355 MPa, tensile range 470-630 MPa, elongation ≥22%, and low-temperature toughness (S355M ≥40 J at –20 °C, S355ML ≥27 J at –50 °C longitudinal), making it the benchmark for high-performance structural applications. We stock over 12,000 tons of S355 material in thicknesses 6–200 mm, widths 1500–4200 mm, and lengths up to 18 meters, produced by premium mills like HBIS and Shougang with full PED 2014/68/EU and CPR 305/2011 certification. Each plate includes EN 10204-3.1/3.2 MTCs with full data sheet values, third-party inspections from DNV-GL, ABS, Lloyd's Register, Bureau Veritas, CCS, RINA, KR, TÜV, or SGS, Z25/Z35 through-thickness, and 100% UT EN 10160 S2/E2 testing.
S355 material properties data sheets from Gangsteel include spectrographic chemistry, tensile/yield/elongation per EN ISO 6892-1, Charpy V-notch per EN ISO 148-1 (sub-size for thick plates), hardness (HBW), density (7.85 g/cm³), and optional CTOD/KIc for fracture mechanics. CEV ≤0.39 ensures preheat-free welding to 80 mm. Fast 3–7 day delivery and processing (cutting, beveling, drilling, rolling, priming). Download sample data sheet or request heat-specific PDF. Explore our en 10025 4 High Strength Structural Steel series. For grade overview, S355ML Meaning EN 10025-4 Structural Steel Supplier.
The S355 material properties under EN 10025-4:2004 (2019) and its data sheet cover the TMCP weldable fine-grain structural steel grades S355M and S355ML, where "S" means structural, "355" nominal yield 355 MPa (transverse ≤16 mm), "M" TMCP delivery (900-1100 °C rolling + 20-40 °C/s cooling), and "L" enhanced –50 °C ≥27 J KV (S355ML only). Data sheets detail ladle/product chemistry, mechanicals (yield, tensile, elongation, impact), physicals (density, hardness), and optional extras (Z-quality, CTOD).
TMCP's properties—low residual stress (<100 MPa), fine grains (ASTM 8-10), and CEV ≤0.39—yield superior weldability (no preheat to 80 mm), ductility (≥22% elongation), and fatigue life (>10^7 cycles at 160 MPa). Data sheets verify ReH 355 MPa min (actual 365-395 MPa typical), Rm 470-630 MPa, and KV per EN ISO 148-1 (10x10x55 mm, sub-size >40 mm). Density 7.85 g/cm³ and hardness 140-180 HBW support FEA (bilinear 2% hardening) and machining (0.2-0.3 mm/rev feeds).
S355 material properties enable 15-25% thinner sections than S355J2 under Eurocode 3, with partial factor γM0 = 1.0. Gangsteel data sheets are heat-traceable, supporting DNV-OS-B101 or AASHTO with CTOD (>0.4 mm) and KIc (>140 MPa√m at –40 °C). For chemical, S355ML Chemical Composition EN 10025-4 Supplier; mechanical, S355ML Mechanical Properties EN 10025-4 Plate Supplier.
|
Element |
Ladle Max (%) |
Product Deviation (%) |
Typical Actual (%) – Gangsteel Stock |
Role in Properties |
|---|---|---|---|---|
|
C |
0.14 |
+0.02 |
0.09–0.12 |
Low C for weld ductility |
|
Si |
0.50 |
+0.05 |
0.20–0.40 |
Deoxidizer |
|
Mn |
1.60 |
+0.10 |
1.20–1.50 |
Strength for ReH 355 MPa |
|
P |
0.025 |
+0.005 |
≤0.018 |
Min P for toughness |
|
S |
0.020 |
+0.005 |
≤0.015 |
Low S for inclusion-free KV |
|
Nb |
0.05 |
+0.01 |
0.02–0.04 |
Pins grains for elongation |
|
V |
0.10 |
+0.02 |
0.04–0.08 |
Precipitates for Rm range |
|
Al min |
0.020 |
+0.030 (total) |
0.025–0.045 |
Deoxidizes for clean matrix |
|
Ti |
0.05 |
+0.03 |
0.01–0.03 |
Nitride for isotropy |
|
Cr |
0.30 |
+0.05 |
0.10–0.25 |
Controlled hardenability |
|
Ni |
0.50 |
+0.05 |
0.20–0.40 |
–50 °C transition |
|
Mo |
0.10 |
+0.03 |
≤0.05 |
HAZ stability |
|
Cu |
0.55 |
+0.03 |
0.20–0.35 |
Deoxidizer |
|
N |
0.015 |
+0.003 |
≤0.012 |
Low for properties |
|
CEV max |
0.39 |
N/A |
0.32–0.38 |
Weld index for ductility |
CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15. Equivs match. Full: S355ML Chemical Composition EN 10025-4 Supplier.
|
Thickness (mm) |
ReH min (MPa) |
Rm (MPa) |
A5 min (%) |
KV min (J, long. –50 °C) |
|---|---|---|---|---|
|
≤16 |
355 |
470–630 |
22 |
27 |
|
16<t≤40 |
345 |
470–630 |
22 |
27 |
|
40<t≤63 |
335 |
470–630 |
22 |
27 |
|
63<t≤80 |
325 |
470–630 |
22 |
27 |
|
80<t≤100 |
315 |
470–630 |
22 |
27 |
|
100<t≤120 |
305 |
450–610 |
22 |
27 |
|
120<t≤150 |
295 |
450–610 |
22 |
27 |
|
150<t≤200 |
285–295* |
450–610 |
22 |
27 |
*Agreement >150 mm; Gangsteel 295 MPa to 180 mm. Hardness 140-180 HBW; density 7.85 g/cm³. Curves: S355ML Mechanical Properties EN 10025-4 Plate Supplier.
S355 material properties vs. family.
|
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/-20°C |
27/-50°C |
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 |
|
Density (g/cm³) |
7.85 |
7.85 |
7.85 |
7.85 |
|
Apps |
Light frames |
Bridges |
Offshore |
Cranes |
|
Gangsteel Stock |
High |
V. High |
Highest |
Med |
S355 material balanced; vs S355M, –50 °C KV; vs S275ML, 30% stronger; vs S420ML, ductility. See S355M vs S355ML EN 10025-4 Steel Plate Comparison Supplier.
Properties equivs.
|
Standard |
Equivalent Grade |
Key Match Notes |
Typical Use Case |
|---|---|---|---|
|
ASTM/ASME |
A572 Gr.50 + Z35 |
Yield 345 MPa; properties align |
U.S. properties calc |
|
JIS G 3106 |
SM490A |
Rm 490 MPa; ductility same |
Japanese properties FEA |
|
GB/T 1591 |
Q355C |
Standard-temp properties |
China-EN properties |
|
API 2W |
Grade 50 |
Offshore properties |
Properties platforms |
|
EN 10025-6 |
S355QL |
QT properties; S355ML cheaper |
Heavy properties loads |
Indicative; TMCP properties better HAZ. Dual-cert. Full: S355ML Equivalent Material EN 10025-4 Plate Supplier.
Properties for Eurocode 3, 18% less steel.
Notes: Interpass 150°C; ER50-2. FEA properties input, 2% hardening. Eco: 97% recycle, 20% CO2 save. Gangsteel V-50°, UT S4. For weld properties, S355ML/NL Weldability EN 10025-4 Fine Grain Supplier; data S355ML Data Sheet EN 10025-4 Steel Properties Supplier.
To 92+ countries: Rotterdam 7 days. For specs, S355ML Specification EN 10025-4 Steel Plate Supplier; comparison S355ML vs S355J2 EN 10025-4 Strength Comparison Supplier.
Q1: S355 material properties exact value?
A: Yield 355 MPa min ≤16 mm, derating to 285 MPa at 150-200 mm (transverse). Actual Gangsteel 365-395 MPa typical; EN ISO 6892-1 tested. Key for Eurocode 3 allowable stress (f_y = ReH/γ_M0, γ_M0=1.0).
Q2: S355M vs S355ML properties difference?
A: Impact temp: S355M –20 °C ≥40 J for temperate (bridges/machinery); S355ML –50 °C ≥27 J for cold (offshore/Arctic). Yield/chem/elong/density same—ML for < –20 °C (DNV-OS-B101). Gangsteel stocks both with properties MTCs.
Q3: Welding preheat for S355 material properties?
A: None to 80 mm (CEV 0.32-0.38); low-H E7018 H4. Thicker: 70-120 °C (EN ISO 13916). TMCP low stress preserves properties; saves 50 °C vs J2; CET per heat WPS.
Q4: S355 material for pressure vessels properties?
A: Yes, PED III (EN 13445); derate >63 mm. UT S3/E3; RT opt seams. Properties aid fracture (KIc >140 MPa√m); cost-effective vs QT; dual ASME/EN.
Q5: Z35 in S355 material properties?
A: Z25 std; Z35 stocked (≥35% RA EN 10164 Cl.3) tension; +15-25 USD/t. Properties Norsok M-120 welds; density neutral.
Q6: ASTM equiv for S355 material properties?
A: A572 Gr.50 + Z35; yield 345 MPa, properties align –20 °C KV add. A633 Gr.C normalized; TMCP HAZ better. Dual-cert stocked.
Q7: Custom S355 material lead time properties?
A: Stock 1-3 days; processed 2-5 days; mill 3-5 weeks. 95% OTIF; air <10 MT 24-48 hrs; properties verified MTC.
For S355 material properties plates, quote now.
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