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S460NL Round Bar and Pipe Uses

At Gangsteel, we’re excited to explore the versatile uses of S460NL round bar, a high-strength, low-alloy structural steel under EN 10025-3. Designed for demanding applications with its fine-grain structure and excellent low-temperature toughness, S460NL round bar and pipe are ideal for projects requiring durability in cold climates, such as offshore drilling and heavy machinery.

As part of the en 10025 3 normalized steel plate family, S460NL offers superior strength and weldability. Gangsteel dives into the uses of S460NL round bar and pipe, their chemical composition, mechanical properties, and fabrication considerations, 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, check out our en 10025 3 s460nl normalized structural steel plate page.

 

What is S460NL Steel?

S460NL is a fine-grain structural steel under EN 10025-3, delivered in normalized or normalized rolled condition. Its designation indicates:

  • S: Structural steel.
  • 460: Minimum yield strength of 460 MPa (≤16 mm).
  • NL: Normalized, with impact toughness tested at -50°C.

S460NL round bar is forged or hot-rolled into cylindrical shapes for shafts and pins, while S460NL pipe is seamless or welded tubing for fluid conveyance in cold environments. Compared to en 10025 3 s355nl normalized structural steel plate, S460NL provides higher strength for more demanding uses.

 

Chemical Composition of S460NL Round Bar and Pipe

The chemical composition of S460NL round bar and pipe ensures durability:

Element

Ladle Analysis (max %)

Product Analysis (max %)

Carbon (C)

0.20

0.22

Silicon (Si)

0.60

0.65

Manganese (Mn)

1.00-1.70

0.95-1.80

Phosphorus (P)

0.025

0.030

Sulfur (S)

0.020

0.025

Nitrogen (N)

0.025

0.027

Aluminum (Al)

0.020 (min, total)

0.015 (min, total)

Niobium (Nb)

0.05

0.06

Vanadium (V)

0.20

0.22

Titanium (Ti)

0.05

0.06

Carbon Equivalent (CEV): ≤0.48% (≤63 mm), calculated as CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15, ensures weldability for S460NL round bar and pipe.

 

Mechanical Properties

The mechanical properties of S460NL round bar and pipe support their uses:

Thickness/Diameter (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

  • Yield Strength: ≥460 MPa for load-bearing.
  • Tensile Strength: 540-720 MPa for durability.
  • Impact Toughness: ≥27 J at -50°C for cold resistance.

 

Uses of S460NL Round Bar

S460NL round bar is machined into:

  • Shafts and Pins: For cranes and heavy machinery in cold regions, leveraging toughness.
  • Bolts and Fasteners: High-strength connections in offshore structures.
  • Axles and Rods: In wind turbine components for fatigue resistance.

Diameters range from 10-300 mm, with normalized condition for uniformity.

 

Uses of S460NL Pipe

S460NL pipe is used for:

  • Cryogenic Piping: Transporting LNG in cold climates with -50°C toughness.
  • Offshore Pipelines: Seamless or welded pipes for subsea applications.
  • Pressure Systems: In vessels and heat exchangers for low-temperature fluids.

Available as seamless (up to 24" OD) or welded pipes, compliant with EN 10216-3.

 

Welding and Heat Treatment

S460NL is weldable:

  • Welding: GMAW or SAW per EN 1011-2. Preheating (100-150°C) for >20 mm.
  • PWHT: Optional at 550-650°C.
  • Consumables: ER70S-6 (GMAW), EM12K flux with EH14 wire (SAW).

Supports fabrication of S460NL round bar and pipe.

 

Why Choose Gangsteel?

Gangsteel supplies S460NL:

  • Inventory: Extensive stock in China.
  • Sizes: Round bar 10-300 mm diameter; pipe up to 24" OD, thickness 6–200 mm.
  • Delivery: 7-30 days globally.
  • Certifications: EN 10204 3.1/3.2, UT testing (EN 10160).
  • Processing: Machining, welding, bending.

Contact us for en 10025 3 normalized steel plate.

 

FAQ

What are uses of S460NL round bar?
S460NL round bar is used for shafts, pins, bolts, and axles in cranes, machinery, and wind turbines in cold climates, offering 460 MPa yield and -50°C toughness.

What are applications of S460NL pipe?
S460NL pipe is used for cryogenic piping, offshore pipelines, and pressure systems in low-temperature fluids, with seamless/welded options up to 24" OD, ensuring durability at -50°C.

Is S460NL round bar machinable?
Yes, S460NL round bar’s moderate hardness (170-210 HB) and fine-grain structure allow easy machining for shafts and pins, with good surface finish in cold forming.

How is S460NL pipe fabricated?
S460NL pipe is produced as seamless (hot-rolled) or welded (ERW), with CEV ≤0.48% for GMAW welding, suitable for cryogenic transport in offshore projects.

What are sizes of S460NL round bar?
S460NL round bar diameters range from 10-300 mm, lengths up to 12 m, normalized for uniformity in machinery components.

What certifications for S460NL pipe?
S460NL pipe comes with EN 10204 3.1/3.2 certificates, UT testing (EN 10160), and ABS/LR/BV/DNV approvals for pressure systems.

 

 

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