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At Gangsteel, we’re eager to break down the S460N chemical composition, the foundation of this high-strength, low-alloy structural steel’s exceptional performance under EN 10025-3. S460N, known for its fine-grain structure, strength, and weldability, is a top choice for bridges, cranes, and building frameworks in moderate climates.
As part of the en 10025 3 normalized steel plate family, S460N offers a minimum yield strength of 460 MPa and -20°C toughness. Gangsteel explores how the S460N chemical composition drives its properties, alongside mechanical characteristics and applications, with comparisons to grades like en 10025 3 s420n normalized structural steel plate and en 10025 3 s355n normalized structural steel plate. For more details, visit our en 10025 3 s460n normalized structural steel plate page.
S460N is a high-strength structural steel under EN 10025-3, with a minimum yield strength of 460 MPa for plates up to 16 mm thick. Its designation, also known as material number 1.8901, breaks down as:
The normalization process refines the grain structure, leveraging the S460N chemical composition to enhance strength, toughness, and weldability, making it ideal for moderate climates. Compared to en 10025 3 s355n normalized structural steel plate, S460N offers higher strength for heavier structural demands.
Gangsteel ensures the S460N chemical composition meets EN 10025-3 standards for optimal performance:
|
Element |
Ladle Analysis (max %) |
Product Analysis (max %) |
Role in S460N |
|---|---|---|---|
|
Carbon (C) |
0.20 |
0.22 |
Enhances strength, kept low for weldability and toughness. |
|
Silicon (Si) |
0.60 |
0.65 |
Aids deoxidation, improves strength and microstructure. |
|
Manganese (Mn) |
1.00-1.70 |
0.95-1.80 |
Boosts strength and toughness for load-bearing capacity. |
|
Phosphorus (P) |
0.030 |
0.035 |
Minimized to reduce inclusions, enhancing toughness. |
|
Sulfur (S) |
0.025 |
0.030 |
Low levels prevent inclusions, improving weld quality. |
|
Nitrogen (N) |
0.025 |
0.027 |
Controlled to avoid brittleness, supporting toughness. |
|
Aluminum (Al) |
0.020 (min, total) |
0.015 (min, total) |
Refines grains for toughness, improves microstructure. |
|
Niobium (Nb) |
0.05 |
0.06 |
Promotes fine-grain structure, enhancing strength and toughness. |
|
Vanadium (V) |
0.20 |
0.22 |
Increases strength via precipitation hardening. |
|
Titanium (Ti) |
0.05 |
0.06 |
Refines grains, supports toughness. |
|
Chromium (Cr) |
0.30 |
0.35 |
Enhances corrosion resistance and strength. |
|
Nickel (Ni) |
0.80 |
0.85 |
Improves toughness in moderate climates. |
|
Molybdenum (Mo) |
0.10 |
0.12 |
Boosts strength and creep resistance. |
|
Copper (Cu) |
0.55 |
0.60 |
Enhances corrosion resistance and strength. |
Carbon Equivalent (CEV): Capped at 0.48% for plates up to 63 mm, calculated as CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15, ensuring weldability, similar to en 10025 3 s420n normalized structural steel plate.
This composition makes S460N outperform en 10025 3 s355n normalized structural steel plate in strength.
The S460N chemical composition supports its mechanical properties:
|
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 |
440 |
540-720 |
17 |
27 |
|
40<t≤63 |
430 |
540-720 |
17 |
27 |
|
63<t≤80 |
410 |
540-720 |
17 |
27 |
|
80<t≤100 |
400 |
540-720 |
17 |
27 |
|
100<t≤150 |
380 |
520-680 |
17 |
27 |
|
150<t≤200 |
370 |
520-680 |
17 |
27 |
Gangsteel provides S460N with:
The S460N chemical composition supports weldability:
Gangsteel supplies S460N for:
For colder climates, consider en 10025 3 s460nl normalized structural steel plate.
Gangsteel is your trusted source for S460N:
Contact us for en 10025 3 s460n normalized structural steel plate.
What is the S460N chemical composition?
The S460N chemical composition includes ≤0.20% carbon, 1.00-1.70% manganese, ≤0.025% sulfur, and grain-refining elements for strength and toughness.
How does the S460N chemical composition support toughness?
Low carbon (0.20%), sulfur (0.025%), and phosphorus (0.030%) with aluminum and niobium ensure a fine-grain structure for ≥27 J toughness at -20°C.
Is S460N weldable based on its chemical composition?
Yes, the S460N chemical composition with CEV ≤0.48% supports GMAW/SAW welding with preheating (100-150°C for >20 mm).
What applications use the S460N chemical composition?
The S460N chemical composition supports bridges, cranes, building frameworks, and heavy machinery in moderate climates.
How does the S460N chemical composition compare to S355N?
S460N’s composition (0.20% C, 1.00-1.70% Mn) supports higher yield strength (460 MPa vs 355 MPa) than S355N, with similar toughness.
What certifications support S460N?
Gangsteel provides S460N with EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals.
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