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Introduction
EN 10113 covers hot-rolled weldable fine-grain structural steels supplied as sheets, plates, strips, and coils. These steels are designed to provide high yield strength, good impact toughness, excellent weldability, and reliable performance in demanding structural and engineering applications.
The EN 10113 grade range includes normalized or normalized-rolled fine-grain structural steels such as S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, and S460NL. The “L” grades provide enhanced low-temperature impact toughness compared with the corresponding “N” grades.
EN 10113 structural steel products are used in bridges, buildings, heavy machinery, cranes, transportation equipment, pressure-supporting structures, offshore structures, and general engineering applications.
Ladhani Metal Corporation is a manufacturer, supplier, and exporter of EN 10113 Structural Steel Sheet, Plate, Strip & Coil, supplying S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, and S460NL in various dimensions, surface conditions, and customized sizes.
Applicable Standard
Standard Specification: EN 10113
Organization: European Committee for Standardization (CEN)
Title: Hot-Rolled Products in Weldable Fine Grain Structural Steels
Material Type: Weldable Fine-Grain Structural Steel
Product Forms: Sheet, Plate, Strip & Coil
Material Type
• Fine-Grain Structural Steel
• Weldable Structural Steel
• Normalized Structural Steel
• Normalized-Rolled Structural Steel
• High-Strength Structural Steel
• Low-Alloy Structural Steel
• Low-Temperature Tough Structural Steel
Forms of Supply
• Structural Steel Sheets
• Structural Steel Plates
• Structural Steel Strips
• Structural Steel Coils
• Hot-Rolled Sheets
• Hot-Rolled Plates
• Hot-Rolled Coils
• Cut-to-Length Plates
• Slit Strips
• Custom Cut Sheets
Grades Covered Under EN 10113
S275N | S275NL | S355N | S355NL | S420N | S420NL | S460N | S460NL
Supply Condition
• Normalized
• Normalized Rolled
• Hot Rolled
• Controlled Rolled
• Stress Relieved where permitted
Surface Finish
• Hot-Rolled Finish
• Mill Finish
• Descaled Finish
• Shot-Blasted Finish
• Pickled Finish
• Smooth Finish
Standard Sizes
EN 10113 Structural Steel Sheet & Plate
Thickness: 3 mm to 250 mm
Width: Up to 3,500 mm
Length: Up to 12,000 mm
EN 10113 Structural Steel Strip & Coil
Thickness: 1.5 mm to 25 mm
Width: Up to 2,500 mm
Coil Weight: According to customer requirements
Custom thicknesses, widths, lengths, coil weights, and cut-to-size plates are available according to customer requirements.
Chemical Composition of EN 10113
Chemical composition varies according to the selected grade and product thickness.
|
Grade |
C % Max. |
Si % Max. |
Mn % Max. |
P % Max. |
S % Max. |
N % Max. |
|
S275N |
0.18 |
0.50 |
1.60 |
0.030 |
0.030 |
0.015 |
|
S275NL |
0.18 |
0.50 |
1.60 |
0.030 |
0.030 |
0.015 |
|
S355N |
0.20 |
0.50 |
1.70 |
0.030 |
0.030 |
0.015 |
|
S355NL |
0.20 |
0.50 |
1.70 |
0.030 |
0.030 |
0.015 |
|
S420N |
0.20 |
0.50 |
1.70 |
0.030 |
0.030 |
0.015 |
|
S420NL |
0.20 |
0.50 |
1.70 |
0.030 |
0.030 |
0.015 |
|
S460N |
0.20 |
0.60 |
1.70 |
0.030 |
0.030 |
0.015 |
|
S460NL |
0.20 |
0.60 |
1.70 |
0.030 |
0.030 |
0.015 |
Fine-grain structural steels may contain controlled quantities of aluminium, niobium, vanadium and titanium for grain refinement and strengthening. The exact limits depend on the grade, product thickness, and applicable EN 10113 requirements.
Mechanical Properties of EN 10113
Mechanical properties depend on the selected grade and product thickness.
|
Grade |
Minimum Yield
Strength MPa |
Tensile
Strength MPa |
Minimum
Elongation % |
|
S275N |
275 |
370–510 |
23 |
|
S275NL |
275 |
370–510 |
23 |
|
S355N |
355 |
470–630 |
22 |
|
S355NL |
355 |
470–630 |
22 |
|
S420N |
420 |
520–680 |
19 |
|
S420NL |
420 |
520–680 |
19 |
|
S460N |
460 |
540–720 |
17 |
|
S460NL |
460 |
540–720 |
17 |
Yield strength values can decrease with increasing product thickness. The applicable EN 10113 tables should be used for exact certified values.
Impact Toughness
Impact toughness is an important characteristic of EN 10113 fine-grain structural steels.
N Grades: Specified Charpy V-notch impact properties at normal or moderately low temperatures.
NL Grades: Enhanced low-temperature impact toughness with Charpy V-notch testing at lower temperatures.
The exact impact energy requirements and test temperatures depend on the individual grade and product thickness.
Key Features of EN 10113 Structural Steel
• High yield strength
• Excellent tensile strength
• Fine-grain microstructure
• Excellent weldability
• Good impact toughness
• Enhanced low-temperature performance in NL grades
• Good resistance to brittle fracture
• Suitable for heavy structures
• Good fabrication characteristics
• Reliable dimensional performance
Applications of EN 10113 Structural Steel Sheet, Plate, Strip
& Coil
Construction Industry
• Building Structures
• Structural Frames
• Industrial Buildings
• Roof Structures
• Load-Bearing Components
Bridge Construction
• Bridge Girders
• Bridge Plates
• Structural Supports
• Bridge Components
• Heavy Structural Members
Heavy Engineering
• Heavy Machinery
• Machine Frames
• Industrial Equipment
• Fabricated Structures
• Heavy-Duty Components
Crane & Lifting Equipment
• Crane Girders
• Crane Structures
• Lifting Equipment
• Load-Bearing Components
• Heavy-Duty Supports
Transportation Industry
• Railway Equipment
• Trailer Structures
• Heavy Vehicle Components
• Transportation Structures
• Fabricated Transport Equipment
Offshore & Industrial Structures
• Offshore Platforms
• Industrial Platforms
• Storage Structures
• Structural Frameworks
• Heavy-Duty Fabrications
Fabrication and Welding
EN 10113 fine-grain structural steels provide good fabrication and welding characteristics.
• Excellent weldability
• Good formability
• Suitable for bending
• Suitable for cutting
• Suitable for machining
• Good dimensional stability
• Suitable for heavy fabrication
• Reliable welded joint performance
Proper welding procedures should be selected according to the grade, thickness, carbon equivalent, welding process, and service conditions.
Heat Treatment
EN 10113 structural steels are normally supplied in normalized or normalized-rolled conditions.
• Normalizing refines the grain structure
• Normalized rolling provides controlled mechanical properties
• Controlled cooling improves toughness
• Heat treatment can relieve residual stresses where permitted
• Proper thermal processing maintains the required microstructure
Advantages of EN 10113 Structural Steel
• High strength-to-weight ratio
• Excellent weldability
• Fine-grain structure
• Good toughness
• Excellent low-temperature performance in NL grades
• Suitable for heavy structural fabrication
• Good dimensional stability
• Reliable mechanical performance
• Suitable for bridges and heavy engineering
• Available in sheets, plates, strips, and coils
Conclusion
EN 10113 Structural Steel Sheet, Plate, Strip & Coil covers weldable fine-grain structural steels designed for demanding structural applications. The principal grades include S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, and S460NL, offering progressively higher yield strengths and excellent combinations of weldability, toughness, and structural performance.
S275N and S275NL provide reliable structural strength, while S355N and S355NL offer higher strength for heavier structures. S420N, S420NL, S460N, and S460NL provide higher-strength solutions for demanding engineering and structural applications. The NL grades are particularly suitable where enhanced low-temperature impact toughness is required.
Ladhani Metal Corporation supplies EN 10113 Structural Steel Sheet, Plate, Strip & Coil in S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, and S460NL grades, with various thicknesses, widths, lengths, surface conditions, and customized dimensions for construction, bridge engineering, cranes, heavy machinery, transportation, offshore structures, and general engineering applications worldwide.
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