Description: BBN steel is a well-known steel manufacturer and service provider in China, S355J2 steel,EN10025-2 S355J2 carbon structure steel plate is our superior product, we are favored by customers with high quality, competitive price and excellent service
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Premium Non-Alloy Carbon Structural Steel | 355 MPa Minimum Yield Strength | 27 J Charpy V-notch at −20°C | Material No. 1.0577 | Super-Heavy Plates up to 600mm | Original MTC Available
Low-Temperature ToughnessLongitudinal Charpy V-notch impact energy ≥27 J at −20°C — reliable for cold-climate and low-temperature service.
Super-Heavy up to 600mm1.5–600mm thickness coverage with bulk supply and customized processing for heavy engineering structures.
Fully Killed QualityFully killed steel with strict chemistry control, stable mechanical performance and optional Z15 / Z25 / Z35 quality.
01Product Overview & Specifications
EN 10025-2 S355J2 steel plate is a premium non-alloy carbon structural steel with excellent low-temperature toughness, high tensile strength and stable mechanical performance. It is a mainstream grade in the EN 10025-2 European standard system, widely used in building construction, bridges, storage tanks, mechanical manufacturing and heavy engineering structures.
The EN 10025-2 standard series covers complete steel grades: S235JR / S235J0 / S235J2, S275JR / S275J0 / S275J2, S355JR / S355J0 / S355J2 / S355K2, S450J0. We supply super-heavy S355J2 steel plates with a maximum thickness of up to 600mm, supporting customized processing and bulk supply.
Item
Specification
Executive Standard
EN 10025-2 European Standard
Steel Grade
S355J2 (Material No. 1.0577)
Killed Status
Fully killed, strict chemical component control
Thickness
1.5mm – 600mm super-heavy plates available
Width
1000mm – 4000mm
Length
1000mm – 18000mmcustom sizes negotiable
MOQ
1 piece — small-batch orders supported
Delivery Time
In-stock goods delivered promptly; customized production: 10–40 working days
S355J2 steel corresponds to the following equivalent grades in global mainstream standards, supporting cross-standard material matching for international projects.
Standard Region
Standard System
Equivalent Grade
USA
ASTM
A656
Germany
DIN / WNr
St52-3N
Japan
JIS
SS490YA
Old European Standard
EN
Fe510D2S355J2G4
China
GB
Q345D
Sweden
SS
Jan-34
Note: Equivalent grades match S355J2 in general strength level and weldability, yet minor differences exist in chemical composition limits, impact requirements, tolerances and test conditions. For critical or long-cycle projects, please verify detailed project specifications before cross-standard replacement.
03Symbol Explanation of EN 10025-2:2004
Detailed definition of common symbols for EN 10025-2:2004 non-alloy structural steel — the designation encodes steel family, strength level, impact grade and delivery condition.
S
S — Structural Steel
The leading letter identifies the material as non-alloy structural steel for general engineering use.
E
E — Engineering Steel
Leading letter E denotes engineering steel within the same European designation system.
355
235 / 275 / 355 — Yield Strength
Minimum yield strength (ReH, MPa) for steel thickness ≤16mm — 355 MPa for this grade.
JR
JR — +20°C Impact
Charpy V-notch impact energy ≥27 J at +20°C (longitudinal).
J0
J0 — 0°C Impact
Charpy V-notch impact energy ≥27 J at 0°C (longitudinal).
J2
J2 — −20°C Impact
Charpy V-notch impact energy ≥27 J at −20°C (longitudinal) — the grade supplied on this page.
K2
K2 — −20°C High Toughness
Charpy V-notch impact energy ≥40 J at −20°C (longitudinal) for severer low-temperature duty.
+AR
+AR — As Rolled
As rolled delivery condition, without subsequent heat treatment.
+N
+N — Normalized
Normalized / normalized rolled delivery condition for improved toughness and uniformity.
04Chemical Composition
S355J2 is fully killed carbon structural steel with strict chemical component control (heat analysis, maximum %).
Grade
Material No.
Killed Status
C (max)
Si (max)
Mn (max)
P (max)
S (max)
Cu (max)
S355J2
1.0577
Fully Killed
0.20–0.22 (by thickness)
0.55
1.60
0.025
0.025
0.55
Carbon content limit by plate thickness:
Plate Thickness
Carbon Content (Max)
≤16 mm
0.20%
16 – 40 mm
0.20%
>40 mm
0.22%
Note: Values above are specified limits per EN 10025-2 (heat analysis). Fully killed practice with strictly limited phosphorus and sulfur ensures reliable toughness and through-thickness quality. The exact heat analysis of each plate is stated in its original Mill Test Certificate (MTC) supplied with delivery.
05Mechanical Properties
Minimum yield strength and tensile strength of S355J2 steel plate under different thickness specifications, tested at room temperature.
355 MPaMin. Yield StrengthThickness <16 mm
510–680 MPaTensile StrengthThickness <16 mm
≥27 JCharpy Impact (J2)Longitudinal, at −20°C
600 mmMax. ThicknessSuper-heavy plates supplied
Plate Thickness (mm)
Min Yield Strength ReH (MPa)
Tensile Strength Rm (MPa)
<16
355
510 – 680
16 – 40
345
470 – 630
40 – 63
335
470 – 630
63 – 80
325
470 – 630
80 – 100
315
470 – 630
100 – 150
295
450 – 600
150 – 200
285
450 – 600
200 – 250
275
450 – 600
250 – 400
265
450 – 600
Note: The J2 designation guarantees longitudinal Charpy V-notch impact energy of ≥27 J at −20°C; the K2 sub-grade requires ≥40 J at −20°C. For super-heavy sections above 400mm or service below −20°C, please consult our technical team for grade and delivery condition selection.
06Custom Processing, Full Series & Service
One-stop customized processing and quality inspection services for S355J2 steel plates — from deep processing to certified documentation.
Deep Processing
Cutting, welding and surface painting to deliver ready-to-install components per your drawings.
Super-heavy plate supply with customized processing and bulk wholesale support
Z15 / Z25 / Z35 through-thickness quality, heat treatment (Qt / N / Q / A) available
Flaw detection grade 1 / grade 2 full inspection and original MTC documents
Get Your EN 10025-2 S355J2 Steel Quotation Now
Send us your thickness (including super-heavy requirements), product form, dimensions (or part drawings), quantity and processing requirements. We will reply with stock status, factory price, delivery time and complete MTC documents within 24 hours.
BBN Steel has established a complete set of production and supplier management system processes to ensure the improvement of product quality and better service to users.
Production Control
BBN Steel has established a complete production quality control process to ensure every link from research and development to mass production.
Supplier management
Our supplier selection will consider factors such as health and safety, ethics, environmental protection, price and quality to better serve customers.
Certification & Patent
We have successively won various international authoritative certifications, GB /T19001-ISO9001: 2000 quality management system was implemented.
After sales service
We provide booking space, shipping tracking service and after-sales service, we will always be first-class products and perfect pre-sale and after-sales service.
Get in Touch
Welcome to contact us through online consulting, emails and hotline if you are interested in our company or products. Our staff will reply you within 24 hours.
Address: HIGH-TECH DEVELOPMENT ZONE, ZHENGZHOU, CHINA
