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At Gangsteel, we’re eager to break down the S460NL chemical composition, which is the backbone of this high-strength, low-alloy structural steel’s performance under EN 10025-3. S460NL is a normalized or normalized rolled steel with a fine-grain structure, designed for exceptional strength and toughness in cold climates, making it a top choice for offshore platforms, bridges, and wind turbine towers.
As part of the en 10025 3 normalized steel plate family, S460NL’s chemical makeup ensures its reliability in demanding applications. Gangsteel explains how each element contributes to its properties, alongside mechanical characteristics and applications, with comparisons to grades like en 10025 3 s420nl normalized structural steel plate and en 10025 3 s355nl normalized structural steel plate. For more details, visit our en 10025 3 s460nl normalized structural steel plate page.
S460NL 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 indicates:
The S460NL chemical composition is carefully controlled to balance strength, toughness, and weldability, making it ideal for cold environments, outperforming en 10025 3 s355nl normalized structural steel plate in strength for heavier structural demands.
Gangsteel ensures the S460NL chemical composition meets EN 10025-3 standards for optimal performance:
|
Element |
Ladle Analysis (max %) |
Product Analysis (max %) |
Role in S460NL |
|---|---|---|---|
|
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, supports load-bearing capacity. |
|
Phosphorus (P) |
0.025 |
0.030 |
Minimized to reduce inclusions, enhancing toughness. |
|
Sulfur (S) |
0.020 |
0.025 |
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 -50°C 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 low-temperature toughness. |
|
Chromium (Cr) |
0.30 |
0.35 |
Enhances corrosion resistance and strength. |
|
Nickel (Ni) |
0.80 |
0.85 |
Improves toughness at low temperatures. |
|
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 excellent weldability. The S460NL chemical composition aligns with en 10025 3 s420nl normalized structural steel plate for weldability and toughness.
This composition makes S460NL outperform en 10025 3 s355n normalized structural steel plate in strength and cold performance.
The S460NL chemical composition supports its mechanical properties:
|
Thickness (mm) |
Yield Strength (min, MPa) |
Tensile Strength (MPa) |
Elongation (min, %) |
Impact Energy (min, J @ -50°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 S460NL with:
The S460NL chemical composition supports weldability:
Gangsteel supplies S460NL for:
Explore en 10025 3 s275nl normalized structural steel plate for lower-strength needs.
Gangsteel is your trusted source for S460NL:
Contact us for en 10025 3 s460nl normalized structural steel plate.
What is the S460NL chemical composition?
The S460NL chemical composition includes ≤0.20% carbon, 1.00-1.70% manganese, ≤0.025% phosphorus/sulfur, and grain-refining elements like aluminum and niobium for strength and -50°C toughness.
How does the S460NL chemical composition support toughness?
Low carbon (0.20%), sulfur (0.020%), and phosphorus (0.025%) with aluminum and niobium ensure a fine-grain structure, delivering ≥27 J impact toughness at -50°C for cold climates.
Is S460NL weldable based on its chemical composition?
Yes, the S460NL chemical composition with CEV ≤0.48% supports GMAW/SAW welding with preheating (100-150°C for >20 mm), ensuring robust joints.
What applications use the S460NL chemical composition?
The S460NL chemical composition supports offshore platforms, wind towers, bridges, and cranes in cold climates, leveraging strength and toughness.
How does the S460NL chemical composition compare to S355NL?
S460NL’s composition (0.20% C, 1.00-1.70% Mn) supports higher yield strength (460 MPa vs 355 MPa) than S355NL, with similar low-temperature toughness.
What certifications support S460NL?
Gangsteel provides S460NL with EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals, ensuring compliance for global projects.
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