What is bs en 10025-2 s235jr structural steel plate?

 

Gangsteel, a globally recognized leader in manufacturing and exporting structural steel plates, supplies high-quality EN 10025-2 S235JR steel plates, tailored for construction, bridges, and heavy machinery applications in industries such as infrastructure, shipbuilding, and offshore engineering.

BS EN 10025-2 is the British version of the European standard for hot-rolled structural steels, with S235JR offering moderate strength, weldability, and impact resistance at +20°C. This article provides a comprehensive overview of bs en 10025-2 s235jr structural steel plate, including chemical composition, mechanical properties, applications, and benefits, offering valuable insights for engineers, fabricators, and procurement specialists.

 

en 10025-2 s235jr Introduction to DIN EN 10025-2 Standard

 

DIN EN 10025-2 specifies the technical delivery conditions for flat and long products of hot-rolled non-alloy structural steels. The standard covers grades like EN 10025-2 S235JR steel, EN 10025-2 S235J0, EN 10025-2 S235J2 steel, EN 10025-2 S275JR, EN 10025-2 S275J0 steel, EN 10025-2 S275J2 steel, EN 10025-2 S355JR steel, EN 10025-2 S355J2 steel, EN 10025-2 S355K2 steel, EN 10025-2 S355JR+N, EN 10025-2 S355J0, and EN 10025-2 S450J0 steel. Among these, en 10025-2 s235jr stands out for its fine grain structure, improved machinability, and impact resistance at +20°C, making it suitable for structural components exposed to dynamic loads.

Gangsteel produces en 10025-2 s235jr plates in compliance with DIN EN 10025-2, ensuring traceability and quality certification for global projects. For related grades, explore EN 10025 S355J2G3 material steel plates and EN 10025 S355J2 N material, or refer to the BS EN 10025-2 material grade overview.

 

en 10025-2 s235jr Chemical Composition

 

The chemical composition of en 10025-2 s235jr is tightly controlled to achieve optimal mechanical properties while maintaining weldability and formability. The table below outlines the typical composition per DIN EN 10025-2:

Element

Composition (% by weight)

Carbon (C)

0.17 max

Manganese (Mn)

1.40 max

Phosphorus (P)

0.035 max

Sulfur (S)

0.035 max

Silicon (Si)

0.55 max

Copper (Cu)

0.55 max

Nitrogen (N)

0.012 max

Iron (Fe)

Balance

Key Notes:

  • Carbon: Limited to 0.17% to ensure good weldability and prevent brittleness, critical for structural applications.
  • Manganese: Up to 1.40% enhances strength and toughness without compromising ductility.
  • Phosphorus and Sulfur: Low levels (0.035% max) improve impact resistance, especially at +20°C for JR.
  • Silicon and Copper: Contribute to atmospheric corrosion resistance, making en 10025-2 s235jr suitable for outdoor structures.

Gangsteel’s en 10025-2 s235jr plates undergo stringent chemical analysis to meet DIN EN 10025-2 requirements, with options for additional testing such as ultrasonic inspection.

 

en 10025-2 s235jr Mechanical Properties

 

En 10025-2 s235jr offers excellent mechanical properties, making it versatile for structural engineering. The table below summarizes its key properties per DIN EN 10025-2 (for plates up to 16 mm thickness):

Property

Value

Yield Strength (min)

235 MPa

Tensile Strength

360–510 MPa

Elongation (min, 200 mm)

26%

Impact Toughness (Charpy V-notch)

27 J at +20°C

Hardness (HB, typical)

120–170 HB

Highlights:

  • Yield Strength: Minimum 235 MPa ensures structural stability under light to moderate loads, ideal for general construction.
  • Tensile Strength: The 360–510 MPa range provides robustness for dynamic applications.
  • Elongation: 26% ductility supports forming and welding without cracking.
  • Impact Toughness: 27 J at +20°C ensures performance in standard conditions, suitable for general structural use.

Compared to higher grades like EN 10025-2 S355JR (yield 355 MPa), en 10025-2 s235jr offers cost-effective strength for less demanding applications.

 

en 10025-2 s235jr Thickness Tolerance

 

Thickness tolerance for en 10025-2 s235jr is governed by EN 10029, which specifies tolerances for hot-rolled plates 3 mm thick or above. For S235JR (non-alloy structural steel with ReH ≥ 235 N/mm²), the default is Class A, unless otherwise specified. The table below summarizes EN 10029 Class A thickness tolerances:

Nominal Thickness t (mm)

Tolerance (mm) Upper/Lower

t ≤ 3

±0.3

3 < t ≤ 5

±0.4

5 < t ≤ 8

±0.5

8 < t ≤ 15

±0.6

15 < t ≤ 25

±0.8

25 < t ≤ 40

±1.0

40 < t ≤ 80

±1.2

80 < t ≤ 100

±1.4

100 < t ≤ 150

±1.8

150 < t ≤ 200

±2.2

200 < t ≤ 250

±2.6

Key Notes:

  • Class A: Standard tolerance for non-alloy steels; tighter classes (B, C, D) are available for precision applications.
  • Measurement: Tolerances apply outside ground areas; for plates with trimmed edges, tolerances are measured at least 100 mm from the edge.
  • Customization: Gangsteel offers plates with special tolerances upon request, ensuring compliance with EN 10029 for en 10025-2 s235jr.

These tolerances ensure dimensional accuracy for structural applications, reducing fabrication issues.

 

en 10025-2 s235jr Equivalent Material

 

En 10025-2 s235jr has several equivalent materials in international standards, allowing for global sourcing and substitution. The table below details equivalent grades by country/standard:

Country/Standard

Equivalent Grade

Notes

USA (ASTM)

A283 Grade C

Similar strength and weldability

Germany (DIN)

ST37-2

Comparable toughness at +20°C

Japan (JIS)

SS330

Equivalent for structural use

China (GB)

Q235B

Matches yield strength and impact

France (AFNOR)

E24-2

Similar properties for construction

ISO

FE360B

General structural equivalent

UK (BS)

40B

Comparable for offshore applications

Key Notes:

  • ASTM A283 Gr C: Closest US equivalent, with yield strength of 205 MPa (slightly lower than 235 MPa), but similar tensile properties.
  • DIN ST37-2: Offers equivalent impact toughness, widely used in Europe.
  • JIS SS330: Matches for hot-rolled structural steel, with good weldability.
  • GB Q235B: Chinese equivalent, suitable for cold-forming and impact testing at +20°C.
  • Selection Tip: Equivalents may vary slightly in chemical limits; verify with specific project requirements.

For more on equivalents, refer to Gangsteel’s BS EN 10025-2 material grade guide.

 

en 10025-2 s235jr Benefits

 

En 10025-2 s235jr stands out in the EN 10025-2 family for its balanced properties, offering several benefits:

  1. High Strength-to-Weight Ratio: With a yield strength of 235 MPa, it enables lighter structures without sacrificing load-bearing capacity, reducing material costs in general construction.
  2. Good Toughness: Tested at +20°C, en 10025-2 s235jr performs reliably in standard environments, suitable for general structural use.
  3. Excellent Weldability: Low carbon equivalent (CEV ≈ 0.35) allows welding without preheating in many cases, facilitating efficient fabrication for large structures.
  4. Atmospheric Corrosion Resistance: Additions of silicon and copper provide better resistance to weathering, making it suitable for outdoor applications like bridges.
  5. Cost-Effectiveness: Offers moderate strength at a lower cost than higher grades like EN 10025-2 S355J2 steel, allowing for material savings while maintaining performance.
  6. Compliance and Certification: Meets DIN EN 10025-2 and BS EN 10025-2 material grade requirements, with Gangsteel providing CE marking and EN 10204 3.1/3.2 certificates.

 

en 10025-2 s235jr Weldability and Fabrication

 

En 10025-2 s235jr exhibits excellent weldability due to its low carbon equivalent, compatible with standard processes like SMAW, GTAW, and SAW. Key considerations:

  • Preheat: Minimal or no preheating required for plates up to 25 mm, reducing fabrication time.
  • Post-Weld Heat Treatment (PWHT): Not typically needed, but recommended for thicker plates (>40 mm) to relieve stresses.
  • Filler Materials: Use low-alloy fillers matching the strength of en 10025-2 s235jr, such as E6013 or ER70S-6.
  • Fabrication: High ductility (26% elongation) supports bending, rolling, and forming for complex structural components.

Gangsteel supplies en 10025-2 s235jr in normalized conditions, enhancing grain refinement for improved fabrication performance.

 

en 10025-2 s235jr Applications

 

En 10025-2 s235jr is versatile and widely used in:

  • Construction: For bridges, buildings, and stadiums, where moderate strength and good toughness are required.
  • Offshore Engineering: In platforms and wind turbines, leveraging its corrosion resistance and impact toughness.
  • Heavy Machinery: For cranes, excavators, and mining equipment, where durability under dynamic loads is critical.
  • Shipbuilding: In hulls and superstructures, benefiting from its weldability and strength.
  • Energy Sector: For pipelines and storage tanks, similar to EN 10025 S355J2G3 material steel plates but with moderate strength.

Gangsteel’s en 10025-2 s235jr plates are available in thicknesses from 6–300 mm, with options for cut-to-size and cladding for specialized applications.

 

en 10025-2 s235jr Why Choose Gangsteel?

 

Gangsteel is a global leader in supplying DIN EN 10025-2 S235JR plates, offering:

  • Certified Quality: Plates undergo ultrasonic testing, Charpy impact tests at +20°C, and chemical analysis to meet EN 10025-2 standards.
  • Customization: Available in thicknesses from 6–300 mm, with options for normalization, cut-to-size, and beveling for efficient fabrication.
  • Global Supply: Competitive pricing and reliable delivery from China to worldwide markets, with stock in key ports for fast turnaround.
  • Technical Support: Expert guidance on selecting S235JR versus other grades like EN 10025-2 S355JR+N or EN 10025-2 S275J2 steel.

 

en 10025-2 s235jr Gangsteel Solution

 

En 10025-2 s235jr offers exceptional strength, weldability, and toughness, making it ideal for construction, offshore, and heavy machinery applications. Gangsteel’s high-quality S235JR plates ensure reliability and compliance with EN 10025-2 standards. For equivalent standards, explore our BS EN 10025-2 material grade guide.

 

en 10025-2 s235jr FAQ

 

What is the difference between S235JR and S235J0?
S235JR is tested for impact toughness at +20°C, while S235J0 is tested at 0°C, making S235J0 better for slightly colder environments.

What is the equivalent of S235JR in ASTM?
S235JR is equivalent to ASTM A283 Grade C, with similar strength and weldability.

What is the hardness of S235JR?
The typical Brinell hardness (HB) of S235JR is 120–170 HB, depending on thickness and heat treatment.

What is S235JR steel used for?
S235JR is used in construction, bridges, offshore platforms, and heavy machinery due to its moderate strength and toughness at +20°C.

What is the chemical composition of S235JR?
S235JR has a maximum carbon content of 0.17%, manganese up to 1.40%, and low phosphorus/sulfur levels for enhanced toughness, as detailed in the composition table above.

What are the mechanical properties of S235JR?
S235JR has a minimum yield strength of 235 MPa, tensile strength of 360–510 MPa, and impact toughness of 27 J at +20°C, as summarized in the properties table.

Is S235JR a mild steel?
Yes, S235JR is considered a mild steel with a yield strength of 235 MPa, suitable for general structural applications.

What is the difference between S235JR and S275JR?
S275JR has a higher yield strength (275 MPa) than S235JR (235 MPa), making it suitable for heavier loads, while both share similar toughness at +20°C.

 

en 10025-2 s235jr Production Specifications Table

 

Gangsteel offers a wide range of production capabilities for en 10025-2 s235jr. The table below summarizes the available specifications:

Specification

Details

Thickness

6 mm–300 mm (common: 6–100 mm)

Width

1500 mm–4000 mm (common: 2000 mm, 2500 mm)

Length

6000 mm–18000 mm (customizable)

Condition

Hot-rolled, Normalized

Certifications

EN 10025-2, EN 10204 3.1/3.2, CE Marking

Additional Testing

Ultrasonic Testing (UT), Charpy V-notch Impact Test at +20°C, HIC (optional)

Surface Finish

Natural, Painted, Shot-blasted

Production Capacity

Up to 5000 tons/month

Customization

Cut-to-size, Beveling, Cladding (optional)

Key Notes:

  • Standard Sizes: Plates in 6–100 mm thickness, 2000–2500 mm width, and 6000–12000 mm length are typically in stock for immediate delivery.
  • Custom Orders: Thicker plates or non-standard sizes are available with short lead times.
  • Global Reach: Gangsteel’s production in China supports worldwide delivery, with efficient logistics for urgent projects.

 

Long-Tail Keywords

EN 10025-2 S235JR properties, S235JR structural steel plates, DIN EN 10025-2 S235JR equivalent, S235JR weldability, EN 10025-2 S235JR applications

 

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