Product List
Gangsteel Material Solution
Email: admin@gangsteel.com
Sales: jack@gangsteel.com
Gangsteel – China's Leading Mill-Direct Supplier & Exporter of S355M Equivalent Material EN 10025-4 Steel Plates
Gangsteel is the definitive global supplier for S355M equivalent material EN 10025-4 steel plates, offering verified cross-reference grades and dual/triple-certified plates that fully match or exceed S355M specifications under ASTM, JIS, GB/T, API, and other international standards. We stock over 4,000 tons of S355M and its equivalents in thicknesses 6–200 mm, widths 1500–4200 mm, and lengths up to 18 meters, all TMCP-processed for superior weldability and fine-grain properties. Produced by top mills like HBIS and Shougang with full PED 2014/68/EU and CPR 305/2011 certification, our plates include EN 10204-3.1/3.2 MTCs with detailed equivalent mapping, third-party inspections from DNV-GL, ABS, Lloyd's Register, Bureau Veritas, CCS, RINA, KR, TÜV, or SGS, and Z25/Z35 through-thickness quality in stock.
S355M equivalent materials enable seamless substitution in multinational projects, reducing procurement complexity while maintaining the grade's core advantages: 355 MPa minimum yield strength, tensile range 470-630 MPa, elongation ≥22%, and impact toughness ≥40 J at –20 °C longitudinal. Whether you're sourcing for European onshore structures, American bridge retrofits, or Asian heavy machinery, Gangsteel provides dual-certified (EN + ASTM/GB/JIS) plates with identical properties. Fast 3–7 day delivery worldwide and processing (cutting, beveling, drilling, rolling, priming). Explore our en 10025 4 High Strength Structural Steel series. For grade basics, S355M Meaning EN 10025-4 Structural Grade Supplier.
S355M equivalent material refers to international steel grades that match or closely approximate the properties of S355M under EN 10025-4:2004 (2019)—a thermomechanically rolled (TMCP) weldable fine-grain structural steel with 355 MPa minimum yield strength and ≥40 J Charpy V-notch at –20 °C longitudinally. The designation "S355M" means "S" for structural, "355" 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 ≤0.39 ensure superior weldability (no preheat to 80 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 S355M with Q355C (GB) for Chinese domestic or A572 Gr.50 + Z35 (ASTM) for U.S. compliance.
Gangsteel supplies S355M with dual/triple certification, ideal for hybrid specs. For chemical basis, S355M Chemical Composition EN 10025-4 Supplier; mechanical, S355M Mechanical Properties EN 10025-4 Plate Supplier.
|
Element |
S355M (EN 10025-4) max % |
Q355C (GB/T 1591) max % |
A572 Gr.50 (ASTM) max % |
SM490B (JIS G 3106) max % |
Difference & Impact |
|---|---|---|---|---|---|
|
C |
0.14 |
0.18 |
0.23 |
0.18 |
Lower C in S355M = better HAZ |
|
Si |
0.50 |
0.55 |
0.40 |
0.55 |
Similar |
|
Mn |
1.60 |
1.70 |
1.35 |
1.60 |
Similar |
|
P |
0.025 |
0.030 |
0.040 |
0.035 |
Tighter in S355M |
|
S |
0.020 |
0.030 |
0.050 |
0.035 |
Much lower in S355M |
|
Nb + V + Ti |
0.20 combined |
0.20 combined |
Limited |
0.17 combined |
Similar microalloying |
|
CEV max |
0.39 |
0.43 |
0.45 |
0.44 |
S355M best weldability |
S355M has the tightest chemistry → superior HAZ toughness and preheat-free welding.
|
Property |
S355M (EN 10025-4) |
Q355C (GB/T 1591) |
A572 Gr.50 (ASTM) |
SM490B (JIS) |
Notes |
|---|---|---|---|---|---|
|
Yield Strength ReH (MPa) |
355 (≤16 mm) → 285–295 (>150 mm) |
355 (≤16 mm) → 275 (>100 mm) |
345 (all thicknesses) |
355 (≤16 mm) → 295 (>100 mm) |
S355M stronger in thick plates |
|
Tensile Strength Rm (MPa) |
470–630 |
470–630 |
450 min |
490–610 |
Similar |
|
Elongation A5 (%) |
≥22 |
≥22 |
≥21 |
≥17 |
S355M better ductility |
|
Impact Toughness (long.) |
≥40 J at –20 °C |
≥34 J at –20 °C (optional –40 °C) |
No mandatory low-temp |
No mandatory low-temp |
S355M superior |
S355M offers better thick-plate yield and guaranteed low-temp toughness compared to most equivalents.
Q1: What is the best ASTM equivalent for S355M?A: A572 Gr.50 + Z35 with additional –20 °C impact testing is the closest. Many projects accept S355M directly.
Q2: What is the GB/T 1591 equivalent?A: Q355C – identical chemistry and properties. Gangsteel supplies dual-certified S355M + Q355C plates.
Q3: Can I use S355M instead of S355N?A: Yes – S355M is the modern TMCP replacement for normalized S355N with better properties.
Q4: Price difference between S355M and Q355C?A: S355M is 50–100 USD/ton higher than Q355C, but worth it for European certification and better thick-plate strength.
Q5: Z35 availability?A: Yes – large stock of S355M + Z35 ready for immediate delivery.
Q6: Delivery time to USA or Europe?A: Stock material 7–12 days to major ports (Houston, Rotterdam).
Q7: Can you supply triple-certified plates?A: Yes – EN 10025-4 S355M + ASTM A572 Gr.50 + GB/T 1591 Q355C is common from our stock.
Need S355M or equivalent plates? Contact us for quotation within 2 hours.
Email: admin@gangsteel.com WhatsApp/WeChat/Mobile: +86 135 9887 9167 Website: https://gangsteel.net/
Gangsteel – Your Global Expert for S355M and All Equivalents.
ASTM A516 GR 70 equivalent materials is such as ASME SA516 GR 70, EN 10028 P355GH, and BS1501 224-490 A & B, sh
we supply high-quality A516 Gr 70 steel plate for pressure vessel applications and other standards like ASTM A2
EN10028-2 P355GH for High-Strength Low-Alloy Columbium-Vanadium Structural Steel EN10025-2 S355J2 Structural St
We export A240 304L Stainless Coil 2B, NO.1 No.4 surface, the thickness 0.1mm to 3mm, 3mm to 22mm, Mother mill
