Carbon Steel S355J2+N Round Bars & Rods

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Carbon Steel S355J2+N Explained

Carbon Steel S355J2+N is a high-strength structural steel grade widely used in demanding construction and engineering applications. To begin with, it is manufactured in accordance with EN 10025-2 standards and supplied in the normalized (+N) condition — ensuring a fine-grain structure, consistent mechanical properties, and improved toughness. Furthermore, compared to conventional structural steels, S355J2+N offers higher yield strength while maintaining good ductility, weldability, and formability.

Why do structural engineers and project managers choose S355J2+N for critical infrastructure? First and foremost, its excellent impact resistance — particularly at low temperatures — ensures reliable performance in challenging environmental conditions. In addition, its uniform strength across sections allows for efficient, weight-optimized designs without compromising safety or performance. Moreover, its reliable performance under static and dynamic stresses makes it ideal for heavy-duty structural and load-bearing applications.

Consequently, Carbon Steel S355J2+N is widely used in bridges, offshore structures, and pressure components. Furthermore, it is also trusted in machinery parts, fabricated assemblies, and heavy engineering projects. Equally important, its combination of higher strength, enhanced toughness, and long-term structural integrity makes it the preferred choice for projects that demand superior performance and reliability.

Need premium Carbon Steel S355J2+N round bars for your high-strength project? Contact our technical team today — we’ll help you select the right size and specifications for your requirements, and provide a competitive quote tailored to your needs.

Other Types of Carbon Steel S355J2+N Round Bars

Carbon Steel S355J2+N Square Bar
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Carbon Steel S355J2+N Square Bar
  • Square bars produced from EN 10025-2 S355J2+N structural steel
  • Supplied in normalized condition for consistent strength
  • Excellent toughness and load-bearing capability
  • Used in heavy construction and structural fabrication
Carbon Steel S355J2+N Hex Bar
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Carbon Steel S355J2+N Hex Bar
  • Hexagonal bars offering higher strength than standard carbon steels
  • Manufactured from fine-grain S355J2+N material
  • Good machinability for fasteners and mechanical parts
  • Commonly used in engineering and industrial assemblies
Carbon Steel S355J2+N Rectangular Bar
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Carbon Steel S355J2+N Rectangular Bar
  • Rectangular bars designed for high-load structural use
  • Uniform mechanical properties across the section
  • Available in standard and custom-cut sizes
  • Used in bridges, frames, and heavy-duty structures
Carbon Steel S355J2+N Flat Bar
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Carbon Steel S355J2+N Flat Bar
  • Flat bars with higher yield strength and good toughness
  • Manufactured from normalized S355J2+N steel
  • Ideal for base plates, brackets, and support components
  • Supplied in mill finish or cut-to-length form
Carbon Steel S355J2+N Bright Bar
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Carbon Steel S355J2+N Bright Bar
  • Bright drawn bars with smooth surface finish
  • Improved dimensional accuracy for precision machining
  • Consistent mechanical properties throughout the bar
  • Used in shafts, pins, and machined components
Carbon Steel S355J2+N Forged Bar
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Carbon Steel S355J2+N Forged Bar
  • Forged bars with refined grain structure
  • High toughness and strength for demanding applications
  • Better resistance to impact and fatigue loads
  • Used in heavy engineering and structural components

CARBON STEEL S355J2+N ROUND BAR EQUIVALENT GRADES

STANDARD EN ASTM / ASME IS DIN
Carbon Steel S355J2+N EN 10025-2 S355J2+N ASTM A572 Gr 50 IS 2062 E350 DIN 1.0577

SPECIFICATION OF CARBON STEEL S355J2+N ROUND BAR

Size 22 mm up to 800 mm
Thickness 1 – 2 inch
Length 3 meter, 6 meter
Form Carbon Steel Round, Hex, Flat, Half Round, Oval, Rectangular in Black & Bright Finish

CHEMICAL COMPOSITION OF CARBON STEEL S355J2+N ROUND BAR

Grade C Si Mn P S C.E.
S355J2+N 0.22 max 0.55 max 1.60 max 0.035 max 0.035 max 0.47 max

MECHANICAL PROPERTIES OF CARBON STEEL S355J2+N ROUND BAR

Thickness (mm) Yield Strength ReH min (N/mm²) Tensile Strength Rm min (N/mm²) Elongation A5 min (%) Impact Test (Charpy V-Notch)
3 ≤ t ≤ 100 355 490 – 630 22 27 Joules at −20 °C

💡 Practical Difference in Use

Use Carbon Steel S355J2+N Round Bars when: higher strength, improved toughness, and reliable performance under heavier loads are required compared to standard structural steels. S355J2+N is a high-strength, fine-grain structural steel supplied in the normalized (+N) condition, offering excellent weldability along with superior impact resistance, even at low temperatures. → Example: heavy structural supports, load-bearing shafts, base plates, columns, and fabricated components for demanding applications.


Bright Finished / Machined Carbon Steel S355J2+N Round Bars when: precise dimensional accuracy, smooth surface finish, and consistent mechanical properties are required for machined or dynamically loaded components. → Example: precision shafts, machined pins, bolts, rollers, couplings, and high-strength structural parts.

Applications of Carbon Steel S355J2+N Round Bars

Carbon Steel S355J2+N round bars are chosen for applications where higher yield strength, excellent toughness, and structural reliability are essential, while still maintaining good weldability and fabrication ease.

  • Construction & Infrastructure: Bridges, columns, heavy supports, anchor rods, and base plates.
  • General Engineering: High-strength shafts, pins, brackets, and load-bearing machine components.
  • Manufacturing & Fabrication: Welded structures, machinery frames, and structural assemblies requiring higher strength.

When to Choose Carbon Steel S355J2+N Round Bars?

Selecting the right material depends on load conditions, strength requirements, fabrication methods, toughness needs, and overall project performance expectations.

Choose Carbon Steel S355J2+N Round Bars when:

  • Higher yield and tensile strength are required
  • Excellent impact toughness is needed, even at low temperatures
  • Structural reliability under heavy loads is critical
  • Used in bridges, heavy construction, and engineering structures
  • Good weldability with normalized condition is preferred
  • Long-term durability and safety margins are important

Bright / Machined Carbon Steel S355J2+N Round Bars are preferred when:

  • Tight dimensional tolerances are required
  • Smoother surface finish improves fit and performance
  • Machining operations such as turning, drilling, or milling are involved
  • Consistent mechanical properties are needed throughout the section
  • Used in precision shafts, fasteners, and mechanical assemblies
  • Uniform surface condition is essential for accurate assembly

Industries That Use Carbon Steel S355J2+N Round Bars

Carbon Steel S355J2+N round bars are widely used in industries that demand higher strength, excellent toughness, and dependable structural performance under demanding service conditions.

Construction & Infrastructure

Used in critical load-bearing and heavy structural components.

Uses

Bridges, columns, anchor rods, base plates, and supports.

Why Carbon Steel S355J2+N?

High yield strength, excellent toughness, and reliable weldability.

General Engineering

Used in high-strength fabricated and machined parts.

Uses

Shafts, pins, couplings, brackets, and load-bearing components.

Why Carbon Steel S355J2+N?

Superior strength, dimensional stability, and consistent performance.

Manufacturing & Fabrication

Used in welded assemblies and heavy machinery structures.

Uses

Machine frames, structural assemblies, and support systems.

Why Carbon Steel S355J2+N?

Normalized condition, higher strength class, and long service life.

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Looking for high-quality Carbon Steel S355J2+N Round Bars & Rods? Our products are manufactured in compliance with EN 10025-2 and ASTM A572 Gr. 50 / A516 equivalent standards . Get in touch with us today.

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