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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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S355JR+N Plates

S355JR+N Plates
Material Grade: EN 10025-2 S355JR+N (High Yield)
Supply Condition: Normalized (+N) Heat Treated
Impact Property: Guaranteed 27J Minimum at 20°C
Structural Edge: Refined Grain Structure for Uniformity
Fabrication Advantage: Enhanced Stability for Welding & Cutting
Strength Level: 355 MPa Minimum Yield Strength
Thickness Range: 6.0 mm to 200 mm
Primary Industries: General Construction, Transmission Towers, & Brackets
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S355JR+N Plates represent the most versatile and widely utilized grade of high-strength structural steel, optimized for general engineering and construction projects. As a key component of the EN 10025-2 specification, the "S355" designation guarantees a robust minimum yield strength of 355 MPa. The +N designation signifies that the steel has undergone a Normalized heat treatment, which involves heating the material to a precise temperature to achieve grain refinement. This process ensures that the plate possesses a uniform microstructure, providing consistent mechanical properties that are superior to standard as-rolled plates.

The technical utility of EN 10025-2 S355JR+N lies in its balanced performance and exceptional ease of fabrication. While the "JR" suffix indicates that impact testing is verified at room temperature (20°C) for a minimum of 27 Joules, the normalized state provides additional structural stability and reliability. This makes S355JR+N the definitive choice for bolted and welded structures, transmission towers, and secondary steelwork where high load-bearing capacity is required without the need for sub-zero impact properties. Its refined internal structure also improves its response to precision laser cutting and machining, ensuring that industrial components are manufactured with high dimensional accuracy.



S355JR+N Plates Features

  • » Normalized Microstructure (+N): Undergoes thermal normalization to achieve a refined and uniform grain structure, ensuring consistent mechanical strength across the entire plate surface.
  • » Reliable Room-Temperature Toughness (JR): Guaranteed to meet a minimum impact energy of 27 Joules at 20°C, providing robust safety for standard structural applications.
  • » High Load-Bearing Capacity: Features a minimum yield strength of 355 MPa, allowing for the construction of stronger and more efficient structural frameworks with reduced material usage.
  • » Excellent Weldability: Low carbon equivalent (CEV) values make it highly suitable for all standard welding techniques, ensuring high joint integrity in complex fabrications.
  • » Improved Machining Response: The stress-relieved nature of the normalized state results in better surface finishes and more predictable behavior during drilling and milling operations.
  • » Dimensional Stability: Normalization minimizes internal stresses, significantly reducing the risk of plate warping or distortion during precision laser or plasma cutting.
  • » Superior Ductility & Formability: The refined grain structure supports excellent cold-bending and forming capabilities, essential for manufacturing brackets and profiles.
  • » Cost-Effective Structural Base: Offers a premium metallurgical condition at a balanced price point, making it the industry standard for high-quality general engineering.

S355JR+N Plates Specification

Standards

  • EN Standard: EN 10025-2
  • Grade: S355JR+N
  • Werkstoff No: 1.0045
  • Equiv: IS 2062 E350 BR

Chemistry

  • Carbon (C): 0.24% Max
  • Manganese (Mn): 1.60% Max
  • Silicon (Si): 0.55% Max
  • Sulfur (S): 0.035% Max

Strength

  • Yield Strength: 355 MPa (Min)
  • Tensile Strength: 470 – 630 MPa
  • Elongation: 20% (Min)
  • Hardness: 140 - 180 HB

Testing & State

  • Impact (JR): 27J @ 20°C
  • Supply State: Normalized (+N)
  • Weldability: High (Standard)
  • Deoxidation: Fully Killed

Dimensions

  • Thickness: 6 mm to 200 mm
  • Width: 1500 mm to 3000 mm
  • Length: 6000 mm to 12000 mm
  • Tolerance: EN 10029

Verification

  • MTC: EN 10204 3.1 / 3.2
  • Testing: UT Tested / Tensile
  • Certification: CE Marked
  • Marking: Heat No / Plate No

S355JR+N Plates Detailed Specifications

Property Specification
Item S355JR+N - Offshore & Structural Steel Plate
Thickness 5mm-150mm
Width 1000mm-4500mm
Length 3000mm-18000mm or as custom’s request
Material En 10025-2 Steel Plate, S355JR+N Steel Plate
Technique hot rolled
Standard EN 10025-2:2004

S355JR+N Plates Chemical Composition

Grade C Mn Si P S N Cu CEV
S355JR+N 0.24 max. 1.6 max. 0.55 max. 0.04 max. 0.04 max. 0.012 max. 0.55 max. 0.47 max.

S355JR+N Plates Mechanical Properties

Grade Thickness (mm) Min Yield (Mpa) Tensile (Mpa) Elongation (%) Min Impact Energy
S355JR+N 8mm-100mm 315-355 Mpa 450-630 Mpa 18-20% 20 27J
101mm-200mm 285-295 Mpa 450-600 Mpa 18% 20 27J
201mm-400mm 275 Mpa - 17% 20 27J

S355JR+N Plates Equivalent Grades

DIN,WNr
JIS
AFNOR
BS
EN
UNI
NBN
UNE
GB
ISO
IS
St52-3U SS490B E36-3 50C Fe510C Fe510C AE355C AE355C 16Mn E355C Fe570HT

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA
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