What is the standard for S460 steel?

Standard for S460 Steel

At Gangsteel, we’re here to clarify the standard for S460 steel, a high-strength, low-alloy structural steel widely used in demanding applications like bridges, cranes, and building frameworks. S460 steel is governed by the European standard EN 10025, specifically parts EN 10025-3 (for normalized grades like S460N and S460NL) and EN 10025-4 (for thermomechanically rolled grades like S460M and S460ML). These standards define the chemical composition, mechanical properties, and delivery conditions for S460 steel grades.

As part of the en 10025 3 normalized steel plate family, S460N and S460NL offer a minimum yield strength of 460 MPa, with S460N tested at -20°C and S460NL at -50°C for toughness. Gangsteel explores the standards, specifications, and applications of S460 steel, comparing it 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 or en 10025 3 s460nl normalized structural steel plate pages.

What is S460 Steel?

S460 steel refers to a family of high-strength structural steels with a minimum yield strength of 460 MPa, defined under the EN 10025 standard. The designation "S460" breaks down as:

• S: Structural steel.
• 460: Minimum yield strength in MPa (for plates ≤16 mm).

S460 steel is available in different grades based on processing and toughness:

• EN 10025-3: Normalized or normalized rolled grades (S460N, S460NL).
• EN 10025-4: Thermomechanically rolled grades (S460M, S460ML).

Each grade is tailored for specific applications, with S460N for moderate climates, S460NL for colder climates, and S460M/S460ML for enhanced formability and toughness.

Standard for S460 Steel

The primary standards for S460 steel are:

• EN 10025-3:2019: Covers normalized or normalized rolled fine-grain structural steels, including:
  • S460N(1.8901): Tested for impact toughness at -20°C, suitable for moderate climates.
  • S460NL(1.8903): Tested at -50°C, ideal for cold climates.
• EN 10025-4:2019: Covers thermomechanically rolled (TMCP) fine-grain structural steels, including:
  • S460M(1.8827): Tested at -20°C, with enhanced formability.
  • S460ML(1.8838): Tested at -50°C, for cold climates with improved formability.

These standards specify chemical composition, mechanical properties, delivery conditions, and testing requirements, ensuring S460 steel meets rigorous structural demands. S460N, for example, is a close match to en 10025 3 s420n normalized structural steel plate but offers higher strength.

Chemical Composition of S460 Steel Grades

Gangsteel ensures S460 steel grades meet EN 10025-3 and EN 10025-4 standards:

Carbon Equivalent (CEV):

• S460N/S460NL: ≤0.48% (≤63 mm).
• S460M/S460ML: ≤0.45% (≤63 mm).

S460NL and S460ML’s lower sulfur (0.020% vs 0.025%) and phosphorus (0.025% vs 0.030%) enhance toughness and weldability, while S460M/S460ML’s lower carbon (0.16% vs 0.20%) improves formability, similar to en 10025 3 s355n normalized structural steel plate.

Mechanical Properties of S460 Steel Grades

Gangsteel guarantees S460 steel grades meet high-strength application needs:

• Yield Strength: All grades offer 460 MPa, ideal for heavy loads.
• Tensile Strength: S460N/S460NL slightly higher (540-720 MPa) than S460M/S460ML (530-720 MPa).
• Toughness: S460NL and S460ML excel at -50°C, suitable for cold climates; S460N and S460M are for moderate climates.
• Thickness: Up to 200 mm for all grades, versatile like en 10025 3 s275n normalized structural steel plate.

Delivery Conditions and Specifications

Gangsteel provides S460 steel grades with:

• Standards: EN 10025-3:2019 (S460N, S460NL); EN 10025-4:2019 (S460M, S460ML).
• Condition: Normalized (S460N, S460NL) or thermomechanically rolled (S460M, S460ML).
• Thickness Range: 6–200 mm, custom up to 250 mm.
• Widths: 2000/2500/3000 mm.
• Lengths: Up to 12,000 mm.
• Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), ABS/LR/BV/DNV approvals.
• Z-Quality: Optional Z15, Z25, or Z35 per EN 10164 for through-thickness properties.

Welding and Heat Treatment

• S460N/S460NL: CEV ≤0.48%; preheating (100-150°C) for >20 mm; PWHT optional (550-650°C).
• S460M/S460ML: CEV ≤0.45%, better weldability due to lower carbon; similar preheating.

Consumables: ER70S-6 (GMAW), EM12K flux with EH14 wire (SAW). S460M/S460ML’s lower CEV enhances weld quality.

Applications

• S460N: Bridges, cranes, building frameworks in moderate climates.
• S460NL: Offshore platforms, wind towers in cold climates (-50°C).
• S460M/S460ML: Complex structures like offshore platforms, benefiting from formability and toughness.

Why Choose Gangsteel?

Gangsteel supplies S460 steel grades:

• Inventory: Extensive stock in China.
• Sizes: Thickness 6–200 mm, widths up to 3000 mm.
• Delivery: 7-30 days globally.
• Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), ABS/LR/BV/DNV approvals.
• Processing: Cutting, welding, bending.

Contact us for en 10025 3 s460n normalized structural steel plate.

FAQ

What is the standard for S460 steel?
The standard for S460 steel is EN 10025, specifically EN 10025-3 for S460N/S460NL (normalized) and EN 10025-4 for S460M/S460ML (thermomechanically rolled).

What is S460N in EN 10025-3?
S460N is a normalized steel with 460 MPa yield strength and -20°C toughness, ideal for bridges in moderate climates.

What is S460NL in EN 10025-3?
S460NL is a normalized steel with 460 MPa yield strength and -50°C toughness, suited for cold climates like offshore platforms.

What is S460M in EN 10025-4?
S460M is a thermomechanically rolled steel with 460 MPa yield strength and -20°C toughness, offering enhanced formability.

How do S460N and S460M differ?
S460N is normalized for consistent microstructure; S460M is thermomechanically rolled for better formability and lower CEV (≤0.45% vs ≤0.48%).

What certifications support S460 steel?
Gangsteel provides S460 steel with EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals.