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EN 10025-3 S460N steel plate is a high-strength, fine-grained structural steel designed for demanding engineering applications. It conforms to the European standard EN 10025-3, which specifies technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels. The typical delivery condition for S460N is normalized or normalized rolled, ensuring uniform microstructure and enhanced toughness.
The designation "S460N" breaks down as follows:
This steel belongs to the category of fine grain structural steels, which are characterized by controlled grain size for improved toughness, weldability, and resistance to brittle fracture, making it ideal for heavy-duty constructions.
For more details on our range of EN 10025-3 normalized steel plates, explore our comprehensive selection.
The chemical composition of S460N steel is tightly controlled to ensure excellent weldability and mechanical performance. It includes limits on carbon and other alloying elements to minimize the carbon equivalent (CEV), reducing the risk of cracking during welding.
Below is a detailed table comparing the ladle analysis (melt analysis during production) and product analysis (analysis of the finished plate) as per EN 10025-3:
Element |
Ladle Analysis (max %) |
Product Analysis (max %) |
---|---|---|
Carbon (C) |
0.20 |
0.23 |
Silicon (Si) |
0.60 |
0.70 |
Manganese (Mn) |
1.70 |
1.80 |
Phosphorus (P) |
0.025 |
0.035 |
Sulfur (S) |
0.015 |
0.025 |
Nitrogen (N) |
0.025 |
0.030 |
Aluminum (Al) |
0.020 (min, total) |
0.020 (min, total) |
Niobium (Nb) |
0.05 |
0.06 |
Vanadium (V) |
0.12 |
0.15 |
Titanium (Ti) |
0.05 |
0.07 |
The Carbon Equivalent (CEV) is calculated using the formula: CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15. For S460N, the typical CEV is ≤0.45%, which classifies it as easily weldable without special precautions for most thicknesses. This low CEV ensures good resistance to cold cracking and supports efficient fabrication processes.
S460N steel offers superior strength and toughness, particularly at low temperatures. Key properties include a minimum yield strength of ≥460 MPa, tensile strength ranging from 540-720 MPa, and elongation ≥17%. It also provides excellent impact toughness of ≥27 J at -20°C (Charpy V-notch test).
The mechanical properties vary slightly with plate thickness. Here's a comprehensive table outlining the values for different thickness ranges:
Thickness (mm) |
Yield Strength (min, MPa) |
Tensile Strength (MPa) |
Elongation (min, %) |
Impact Energy (min, J @ -20°C) |
---|---|---|---|---|
≤16 |
460 |
540-720 |
17 |
27 |
16<t≤40 |
460 |
540-720 |
17 |
27 |
40<t≤63 |
440 |
570-720 |
17 |
27 |
63<t≤80 |
400 |
570-720 |
17 |
27 |
80<t≤100 |
380 |
570-720 |
17 |
27 |
100<t≤150 |
340 |
540-720 |
18 |
27 |
These properties make S460N suitable for high-stress environments while maintaining ductility.
S460N has equivalents across various international standards, though exact matches may vary slightly in composition or properties. Below is a table of common equivalent grades:
Standard |
Equivalent Steel Grade |
---|---|
EN (Thermo-mechanical) |
S460M |
EN normalized + low temp |
S460NL |
DIN |
StE 460 / TStE 460 |
ISO |
E460 |
ASTM / ASME |
A572 Grade 65 (non-exact equivalent) |
For instance, compare it with our EN 10025-3 S460NL normalized structural steel plate for enhanced low-temperature performance.
Understanding the distinctions between S460N and similar grades helps in material selection.
These differences impact project economics, performance, and fabrication.
S460N exhibits excellent weldability due to its low carbon content and CEV. It can be welded using processes like GMAW (Gas Metal Arc Welding) or SAW (Submerged Arc Welding) without significant issues.
Recommended consumables include:
Always follow EN 1011 guidelines for optimal results.
S460N steel plate is widely used in industries requiring high strength and reliability under load:
Customers choose S460N for its high strength-to-weight ratio, good low-temperature performance, and easy weldability, enabling efficient designs that meet safety standards like Eurocode 3.
Explore related grades like our EN 10025-3 S420N normalized structural steel plate for similar applications.
At Gangsteel, we stock S460N in a wide range of sizes to meet your project needs:
Plates are supplied in hot-rolled and normalized condition. We provide full traceability with EN 10204 3.1/3.2 certificates and optional UT testing (EN 10160) for quality assurance. Surface finishes include mill scale or primed for protection.
As a leading producer and exporter of steel plates, Gangsteel offers unmatched reliability for S460N:
We also provide value-added processing like cutting, welding, and bending to your specifications. Every order includes original mill test certificates and optional approvals from ABS, LR, BV, or DNV.
For our full EN 10025-3 S460N normalized structural steel plate details and quotes, contact us today.
Is S460N steel good for welding?
Yes, S460N has excellent weldability with a low CEV (≤0.45%), making it suitable for common arc welding processes without special fluxes.
What temperature can S460N be used in?
S460N performs well from -20°C to +500°C, with impact toughness guaranteed at -20°C. For colder environments, consider S460NL.
Does S460N require preheating when welding?
Preheating is recommended for thicknesses over 20 mm (100-150°C) to prevent cracking, but thinner sections can be welded at ambient temperatures.
Is S460N equivalent to ASTM A572?
S460N is similar to ASTM A572 Grade 65 in strength (yield ~450 MPa), but not fully equivalent due to differences in grain refinement and normalization. A572 is more general-purpose, while S460N emphasizes fine-grain toughness.
For more on low-alloy options, visit our EN 10025-3 S275NL normalized structural steel plate or EN 10025-3 S355NL page.
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EN 10025-3 S355NL steel plate is a medium-strength, fine-grained structural steel tailored for weldable use in
EN 10025-3 S420NL steel plate is a high-strength, fine-grained structural steel designed for weldable applicati
EN 10025-3 S460NL steel plate is a high-strength, fine-grained structural steel optimized for weldable applicat