Customized En 10025 S235jr S355jr S355j2 Steel Bar Steel Angles

Angle Steel Is A Long Steel Bar With An L-Shaped Cross Section. Angle Steel Can Be Made Into Two Types: Equal-Leg Angle Steel And Unequal-Leg Angle Steel. The Unequal-Leg Angle Steel Has A Long Side And A Short Side, With A 90-Degree Angle Between The Two Sides. The Length Can Be Customized According To Actual Needs. It Has High Rigidity And Strength, And Is Very Suitable For Building Stable Frames And Support Systems.

Material Grade Specifications (EN 10025 Standard)​

Each grade under the EN 10025 standard is selected for its distinct mechanical properties, catering to varied load-bearing, environmental, and application-specific needs:​

S235jr: A non-alloy structural steel grade and the most widely used variant in the EN 10025 series. It features a minimum yield strength of 235 MPa (for thicknesses ≤16mm) and a tensile strength range of 360-510 MPa. With excellent weldability (compatible with all common welding methods, including MIG, TIG, and arc welding) and ductility (elongation ≥26% for thicknesses ≤16mm), S235jr is ideal for general structural applications requiring customization-such as lightweight frames, brackets, and non-critical load-bearing components. The "jr" suffix indicates it meets room-temperature impact test requirements (≥27 J at 20°C), ensuring safety under moderate dynamic loads.​

S355jr: A high-strength non-alloy steel grade with enhanced performance compared to S235jr. It boasts a minimum yield strength of 355 MPa (for thicknesses ≤16mm) and a tensile strength range of 470-630 MPa. Offering superior load-bearing capacity and toughness, S355jr is suitable for custom heavy-duty structures, including medium-load beams, trusses, and construction supports. Like S235jr, it maintains excellent weldability and formability, allowing for complex custom shapes (e.g., unequal-leg angles for asymmetric connections). The "jr" suffix confirms room-temperature impact resistance (≥27 J at 20°C), making it reliable in standard environmental conditions.​

S355j2: A premium variant of S355, designed for applications exposed to low temperatures. It shares the same yield strength (minimum 355 MPa for thicknesses ≤16mm) and tensile strength (470-630 MPa) as S355jr but offers enhanced low-temperature impact resistance-meeting a minimum impact energy of 27 J at -40°C (vs. 20°C for S355jr). This makes S355j2 ideal for customized projects in cold climates or low-temperature environments, such as outdoor infrastructure in northern Europe, offshore components, or industrial machinery operating in freezing conditions. It retains excellent weldability and machinability, ensuring customization without compromising performance.​

Customization Capabilities​

To align with project-specific needs, our EN 10025 steel angles offer comprehensive customization across key dimensions and features:​

Dimensional Customization:​

Leg Length: Available in equal-leg (e.g., 20x20mm, 50x50mm, up to 200x200mm) or unequal-leg (e.g., 30x20mm, 80x50mm) configurations, with leg length tolerances controlled within ±1% (per EN 10056-1) to ensure precision.​

Thickness: Ranges from 3mm to 20mm, with thickness tolerances of ±0.5mm for thin profiles (≤10mm) and ±0.8mm for thick profiles (>10mm), adapting to load requirements (thicker profiles for high-stress applications).​

Length: Standard lengths of 6m, 9m, or 12m, with custom cut-to-length options (minimum 1m, maximum 18m) to minimize material waste and simplify on-site installation.​

Surface Treatment Customization:​

Hot-Dip Galvanizing: Provides a zinc coating (20-80μm thickness) for superior corrosion resistance, ideal for outdoor or humid environments (e.g., coastal structures, outdoor frames).​

Painting/Powder Coating: Custom color options (per RAL or Pantone codes) with a durable, scratch-resistant finish, suitable for aesthetic or indoor applications (e.g., architectural interiors, machinery enclosures).​

Pickling/Passivation: Removes surface scale and contaminants, leaving a clean, smooth surface for further processing (e.g., welding, bonding) or for applications requiring high surface quality.​

Shape Customization: Beyond standard L-shapes, we offer modified angles (e.g., rounded legs, chamfered edges) or drilled/threaded angles (pre-drilled holes with custom diameters and spacing) to meet specific assembly needs, reducing on-site machining time.​

Manufacturing Process & Structural Advantages​

Our customized steel angles are manufactured via advanced hot-rolling and post-processing techniques, ensuring quality and performance:​

Hot-Rolling: Steel billets are heated to 1100-1250°C (above recrystallization temperature) and rolled into L-shaped profiles using precision mills. This process eliminates internal defects (e.g., voids, inclusions), refines the grain structure, and ensures uniform mechanical properties-critical for customized profiles that may bear non-standard loads.​

Precision Cutting/Shaping: Custom lengths and shapes are achieved using CNC (Computer Numerical Control) cutting machines (e.g., plasma cutting, laser cutting) or bending machines, ensuring dimensional accuracy within ±0.1mm for critical applications.​

Structural Advantages:​

Load-Bearing Efficiency: The L-shaped cross-section provides balanced transfer of axial, bending, and shear forces, even in customized dimensions-making them suitable for complex structural layouts (e.g., irregular frames, asymmetric supports).​

Torsional Stiffness: The angular design enhances torsional rigidity, reducing deflection under dynamic or uneven loads-essential for customized structures that may deviate from standard designs.​

Versatile Integration: Customized dimensions and surface treatments allow for seamless connection to other components (e.g., I-beams, plates, pipes) via welding, bolting, or clamping, supporting diverse assembly requirements.​

Quality Control & Compliance​

To ensure adherence to EN 10025 standards and customer specifications, our customized steel angles undergo rigorous quality control:​

Material Testing: Each batch is tested for chemical composition (via optical emission spectroscopy, OES) to verify compliance with EN 10025 (e.g., carbon content ≤0.24% for S235jr, ≤0.24% for S355jr/S355j2) and mechanical properties (tensile testing, yield strength testing, impact testing) to confirm performance.​

Dimensional Inspection: CNC coordinate measuring machines (CMM) check leg length, thickness, angle (90° ±1°), and surface finish, ensuring alignment with custom specifications.​

Surface Quality Checks: Galvanized or painted surfaces are inspected for coating thickness (using a magnetic thickness gauge), adhesion (via cross-cut testing), and uniformity (visual inspection for defects like blisters, cracks, or uneven coverage).​

Certification: Every shipment includes a Certificate of Conformity (CoC) or Mill Test Certificate (MTC) , verifying compliance with EN 10025 standards, custom specifications, and relevant industry regulations (e.g., CE marking for European markets). Our production facilities are ISO 9001-certified, ensuring consistent quality across all customized orders.​

Application Scope​

The versatility of our customized EN 10025 steel angles makes them suitable for a wide range of industries and projects:​

Construction: Customized angles for architectural structures (e.g., curved frames, decorative trusses), building extensions, or non-standard load-bearing components (S235jr for lightweight, S355jr/S355j2 for heavy-duty).​

Industrial Machinery: Custom-drilled or shaped angles for machinery frames, conveyor supports, or equipment enclosures-adapting to unique machine dimensions (S355jr/S355j2 for high-stress machinery).​

Infrastructure: Cold-resistant S355j2 angles for low-temperature infrastructure (e.g., road signs, bridge components in cold regions) or galvanized angles for coastal infrastructure (e.g., piers, seawalls).​

Custom Fabrication: Prototyping, one-off projects, or specialized equipment (e.g., exhibition stands, custom storage systems) where standard angles do not meet design requirements.​

Our customized EN 10025 steel angles (S235jr/S355jr/S355j2) combine material performance, flexible design, and strict quality control-providing customers with tailored solutions that meet the most demanding project specifications, while ensuring structural safety and long-term durability.