FOR REQUIREMENT OF THIS GRADE OR FOR DETAIL CONTACT US AT :-
LADHANI METAL CORPORATION, MUMBAI, INDIA
Introduction
EN 10025-5
is a European standard that specifies structural steels with improved
atmospheric corrosion resistance, commonly known as weathering steels. These
steels are designed to form a stable, protective oxide layer when exposed to
the atmosphere, significantly reducing corrosion rates and minimizing the need
for surface coatings or maintenance.
EN 10025-5
steels are widely used in outdoor structural applications where long-term
durability, reduced maintenance cost, and aesthetic appearance are required.
The material is suitable for welded, bolted, and riveted constructions and is
supplied in sheet, plate, coil, and strip forms for a wide range of fabrication
and construction needs.
Applicable Standards and Specifications
Standard: EN
10025-5
Material Type: Atmospheric corrosion-resistant structural steel
Product Forms: Sheet, plate, coil, strip
Manufacturing Process: Hot Rolled
Delivery Condition: As Rolled (+AR), Normalized (+N), or Thermomechanically
Rolled (+M) depending on grade
EN 10025-5
steels comply with European structural design codes and are intended for
exposed structural applications.
Available Grades of EN 10025-5 Structural Steel
EN 10025-5
includes multiple grades classified by yield strength, impact toughness, and
delivery condition:
S235J0W,
S235J2W
S355J0W, S355J2W
S355K2W
The suffix
“W” indicates enhanced atmospheric corrosion resistance. Grades with J0, J2, or
K2 indicate impact testing requirements at different temperatures.
Chemical Composition of EN 10025-5 Structural Steel
(%)
S235J0W /
S235J2W
|
Element |
Composition (%) |
|
Carbon (C) |
0.16 max |
|
Manganese
(Mn) |
1.40 max |
|
Phosphorus
(P) |
0.035 max |
|
Sulfur (S) |
0.030 max |
|
Silicon
(Si) |
0.75 max |
|
Copper
(Cu) |
0.25 –
0.55 |
|
Chromium
(Cr) |
0.40 –
1.25 |
|
Nickel
(Ni) |
0.65 max |
S355J0W /
S355J2W / S355K2W
|
Element |
Composition
(%) |
|
Carbon (C) |
0.19 max |
|
Manganese
(Mn) |
1.60 max |
|
Phosphorus
(P) |
0.035 max |
|
Sulfur (S) |
0.030 max |
|
Silicon
(Si) |
0.75 max |
|
Copper
(Cu) |
0.25 –
0.55 |
|
Chromium
(Cr) |
0.40 –
1.25 |
|
Nickel
(Ni) |
0.65 max |
Note: The
combined presence of copper, chromium, nickel, and phosphorus contributes to
the formation of the protective patina layer.
Mechanical Properties of EN 10025-5 Structural Steel
|
Grade |
Yield
Strength (MPa) |
Tensile
Strength (MPa) |
Elongation (%) |
|
S235J0W /
S235J2W |
≥ 235 |
360 – 510 |
≥ 26 |
|
S355J0W /
S355J2W |
≥ 355 |
470 – 630 |
≥ 22 |
|
S355K2W |
≥ 355 |
470 – 630 |
≥ 22 |
Impact test
requirements:
J0 grades tested at 0°C
J2 grades tested at −20°C
K2 grades tested at −20°C with enhanced toughness requirements
Physical Properties (Typical)
Density:
approximately 7.85 g/cm³
Melting Point: approximately 1425 – 1540°C
Thermal Conductivity: approximately 45 – 55 W/m·K
Modulus of Elasticity: approximately 200 GPa
Thickness, Width, and Size Range
Sheet
thickness: 1.5 mm to 6 mm
Plate thickness: 6 mm to 150 mm
Coil thickness: 2 mm to 20 mm
Strip width: from 10 mm onwards
Maximum
width: up to 3000 mm
Length: up to 12000 mm or cut-to-length as required
Material can
be supplied in hot rolled, pickled, or surface-scaled condition.
Key Features of EN 10025-5 Steel Sheet / Plate / Coil
/ Strip
Atmospheric
Corrosion Resistance
EN 10025-5 steels develop a dense, adherent oxide layer when exposed to
atmospheric conditions, significantly slowing further corrosion and extending
service life without coatings.
Low
Maintenance Requirement
Due to the self-protecting patina, structures require minimal painting or
maintenance, reducing lifecycle costs.
Improved
Structural Strength
Higher yield strength grades allow reduced section thickness, resulting in
lighter structures without compromising strength.
Excellent
Weldability
Despite alloying elements for corrosion resistance, EN 10025-5 steels maintain
good weldability using standard welding processes with appropriate consumables.
Attractive
Aesthetic Appearance
The natural rust-like patina provides a distinctive architectural finish,
making these steels popular in architectural and landscaping projects.
Good
Formability and Fabrication
The steel can be easily cut, bent, rolled, and fabricated into complex shapes.
Environmental
Sustainability
Reduced need for paints and coatings lowers environmental impact and long-term
maintenance emissions.
Weldability and Fabrication
EN 10025-5
steels can be welded using SMAW, GMAW, FCAW, and SAW processes. Matching
weathering steel consumables are recommended to maintain corrosion resistance
across weld joints. Preheating is generally not required for thin sections,
while thicker plates may require controlled preheating depending on carbon
equivalent.
Machinability
Machinability
is comparable to conventional structural steels. Proper tool selection and
controlled cutting parameters ensure clean edges and consistent surface finish.
Corrosion Performance Considerations
EN 10025-5
steels perform best in environments with alternating wet and dry conditions.
They are not recommended for permanently wet, submerged, or chloride-rich
environments without additional protection.
Typical Applications of EN 10025-5 Steel Sheet / Plate
/ Coil / Strip
Structural and Construction
Applications
Bridges,
flyovers, and overpasses
Building facades and exposed steel frameworks
Industrial sheds and outdoor structures
Infrastructure and Transportation
Railway
wagons and bridges
Highway structures and sign gantries
Containers and freight equipment
Architectural and Urban Design
Building
cladding and facades
Sculptures and decorative structures
Urban furniture and landscaping elements
Energy and Industrial Applications
Transmission
towers
Power plant structures
Oil and gas secondary structural supports
Heavy Fabrication and Engineering
Material
handling equipment
Earthmoving equipment components
Structural frames exposed to atmosphere
Conclusion
EN 10025-5 Structural Steel Sheet, Plate, Coil, and Strip provide an ideal combination of strength, durability, and atmospheric corrosion resistance. With reduced maintenance requirements, attractive appearance, and excellent fabrication properties, these weathering steels are widely used in bridges, infrastructure, architectural projects, and outdoor structures. When applied in suitable environments, EN 10025-5 steels offer long service life, cost efficiency, and sustainable performance.
For customized sizes, grade
selection, or technical assistance, contact Ladhani Metal Corporation.
FOR REQUIREMENT OF THIS GRADE OR FOR DETAIL CONTACT US AT :-
Product Link:
https://www.indiamart.com/proddetail/en-10025-5-s355k2w-steel-sheet-2858404432191.html?sellerpreview=1
https://www.ladhanimetal.in/products/en-10025-5-s355j2w-steel-strip/3292
https://www.ladhanimetal.in/products/en-10025-5-s355j0w-steel-coil/3291
https://www.ladhanimetal.in/products/en-10025-5-s235j0w-steel-sheet/3289
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