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Gangsteel – China's Leading Mill-Direct Supplier & Exporter of S275M Equivalent Material EN 10025-4 Plates
Gangsteel is the professional supplier you can trust for S275M equivalent material EN 10025-4 plates, with the largest permanent stock in Asia – over 5,000 tons always ready in thickness 6–200 mm, width 1500–4200 mm, length up to 18 meters. All plates are genuine TMCP (thermomechanical controlled process) produced by top mills with full European approvals and third-party inspection (DNV-GL, ABS, LR, BV, CCS, KR, TÜV, SGS).
S275M is the entry-level high-strength grade in the en 10025 4 High Strength Structural Steel family, offering 275 MPa minimum yield strength and ≥40 J impact toughness at –20 °C. It is the direct TMCP alternative to normalized S275N (EN 10025-3) and the sister grade to the low-temperature bestseller S275ML (–50 °C).
We also stock the complete EN 10025-4 series, including the popular low-temperature grade en 10025 4 s275ml steel plate and en 10025 4 s275m steel plate, standard-temperature en 10025 4 s355m steel plate, mid-range en 10025 4 s355ml steel plate and en 10025 4 s420ml steel plate, higher-strength en 10025 4 s460m steel plate, and top-end en 10025 4 s460ml steel plate.
S275M equivalent material refers to international steel grades that match or closely approximate S275M under EN 10025-4:2004 (2019)—a thermomechanically rolled (TMCP) weldable fine-grain structural steel with 275 MPa minimum yield strength and ≥40 J Charpy V-notch at –20 °C longitudinally. The designation "S275M" means "S" structural, "275" nominal yield (MPa, ≤16 mm transverse), "M" TMCP delivery (900-1100 °C rolling + 20-40 °C/s cooling).
TMCP's fine grains (ASTM 8-10) and low CEV ≤0.38 provide superior weldability (no preheat to 100 mm) and isotropy versus normalized or QT alternatives. Equivalents are vital for global projects, allowing substitution without re-qualification under codes like Eurocode 3 or DNV-OS-B101. Common scenarios include replacing S275M with Q275C (GB) for Chinese-EU hybrids or A572 Gr.42 (ASTM) for U.S. compliance.
Gangsteel supplies S275M with dual/triple certification, ideal for hybrid specs. For chemical basis, S275M Chemical Composition EN 10025-4 Supplier; mechanical, S275M 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 |
1.50 |
+0.10 |
1.10–1.40 |
Strength for ReH 275 MPa |
|
P |
0.030 |
+0.005 |
≤0.018 |
Min P for toughness |
|
S |
0.025 |
+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 |
–20 °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 |
0.38 |
N/A |
0.32–0.36 |
Weld index for ductility |
CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15. Equivs match. Full: S275M Chemical Composition EN 10025-4 Supplier.
|
Thickness (mm) |
ReH min (MPa) |
Rm (MPa) |
A5 min (%) |
KV min (J, long. –20 °C) |
|---|---|---|---|---|
|
≤16 |
275 |
370–530 |
24 |
40 |
|
16<t≤40 |
265 |
370–530 |
24 |
40 |
|
40<t≤63 |
255 |
370–530 |
24 |
40 |
|
63<t≤80 |
245 |
370–530 |
24 |
40 |
|
80<t≤100 |
235 |
370–530 |
24 |
40 |
|
100<t≤120 |
235 |
360–520 |
24 |
40 |
|
120<t≤150 |
225 |
360–520 |
24 |
40 |
|
150<t≤200 |
215–225* |
360–520 |
24 |
40 |
Agreement >150 mm; Gangsteel 225 MPa to 180 mm. Hardness 130-170 HBW; density 7.85 g/cm³.: S275M Mechanical Properties EN 10025-4 Plate Supplier.
S275M properties vs. family.
|
Property/Grade |
S275M |
S275ML |
S355M/ML |
S420M/ML |
S460M/ML |
|---|---|---|---|---|---|
|
Yield (MPa, ≤16 mm) |
275 |
275 |
355 |
420 |
460 |
|
Impact Temp (Long.) |
-20°C |
-50°C |
-20°C (M)/-50°C (ML) |
-20°C (M)/-50°C (ML) |
-20°C (M)/-50°C (ML) |
|
Min KV (J) |
40 |
27 |
40 / 27 |
40 / 27 |
40 / 27 |
|
CEV Max |
0.38 |
0.38 |
0.39 |
0.43 |
0.48 |
|
Elong. A5 Min (%) |
24 |
24 |
22 |
19 |
17 |
|
Tensile (MPa) |
370-530 |
370-530 |
470-630 |
520-680 |
540-720 |
|
No-Preheat (mm) |
100 |
100 |
80 |
60 |
80 |
|
Wt Save vs S355J2 |
5-10% |
5-10% |
15-20% |
20-25% |
25-30% |
|
Cost + vs S355J2 (USD/t) |
+40-60 |
+50-70 |
+80-120 |
+150-200 |
+160-220 |
|
Density (g/cm³) |
7.85 |
7.85 |
7.85 |
7.85 |
7.85 |
|
Apps |
Light frames |
Cold frames |
Bridges |
Cranes |
Offshore |
|
Gangsteel Stock |
High |
High |
V. High |
Medium |
Highest |
S275M entry high strength; vs S275ML, –20 °C KV; vs S355M, 20% lighter cost; vs S420M, better ductility/weldability. See S275M vs S275ML EN 10025-4 Low Temp Comparison Supplier.
S275M matches global shifts, TMCP aiding rolled precision.
|
Standard |
Grade Equivalent |
Key Notes |
Typical Substitution Scenario |
|---|---|---|---|
|
ASTM/ASME |
A572 Gr.42 + Z35 |
Yield near; LT test for –20 °C. |
US light structures, AISC 360. |
|
JIS G 3106 |
SM400B |
Core match; scale per JIS G 0404. |
Asian utility frames. |
|
GB/T 1591 |
Q275C |
KV at 0 °C; dual China-EU. |
Domestic chill with exports. |
|
BS EN 10025-3 |
S275N |
S275M adds TMCP fine-grain. |
UK low-temp general. |
|
API 2H |
Grade 42 |
S275M enhances LT; CTOD optional. |
Shallow-water jackets. |
Indicative; S275M for –20 °C. Related: en 10025 4 s420ml steel plate.
S275M's TMCP simplicity suits Eurocode 3, trimming 10% vs. S235 in frames while padding impacts. Key fields:
Tips: Use E42xx fillers; heat ≤1.8 kJ/cm HAZ. Form 1.8t cold; heat 700–850 °C. Green: 100% recycle, 15% CO2 drop vs. HR TMCP. Gangsteel does plasma cuts (±1.5 mm) and zinc (35 µm) for fixings.
Gangsteel redefines S275M sourcing:
To 78+ hubs: Oslo (10 days), Vancouver (15 days), under Incoterms 2020.
Q1: S275M vs S275ML?
A: KV only: S275M ≥40J –20 °C for mild, S275ML ≥27J –50 °C for chill. Rest match—ML < –20 °C EN 1991-1-3 snow.
Q2: S275M weld preheat?
A: No; CEV ≤0.38 to 100 mm H4 electrodes. Bulk: 75–120 °C via EN 1011. CET per batch PQR.
Q3: S275M for vessels?
A: Yes—PED I low EN 10028. t-scale; VI EN 10228.
Q4: S275M vs S355M cost?
A: 50-80 USD/ton premium for TMCP, offset 15% thinness. FOB: ~680–780 USD/ton (25 mm).
Q5: Z for S275M?
A: Z25 base; Z35 for pulls. EN 10164 Cl.1.
Q6: S275M = A572 Gr.42?
A: Yield close (275 vs 290 MPa); S275M finer grain. AISC ok w/ impact.
Q7: S275M custom time?
A: Stock: 1–3 days. Fab: 2–4 days. Roll: 3–4 weeks; rush <4 MT.
Join Gangsteel for EN 10025-4 S275M ease.
Email: admin@gangsteel.com WhatsApp/WeChat/Mobile: +86 135 9887 9167 Website: https://gangsteel.net/
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