P235GH Butt welding Long Radiu 90DEG Elbow

Technical Attributes: P235GH LR 90° Elbow

Material Grade,P235GH (EN 10028-2 / EN 10216-2)

Material Number,1.0345

Fitting Type,90 Degree Long Radius (LR) Elbow

Design Standard,EN 10253-2 (Type A or Type B)

Radius Type,R≈1.5×D (Long Radius)

End Connection,Butt Welding (BW)

End Preparation,Beveled Ends per EN 10253 / DIN 2559

Size Range,DN15 to DN1200

Wall Thickness,"Matches EN 10216-2 Pipe (Series 1, 2, or 3)"

Manufacturing,Seamless or Welded Construction

Carbon Content,C≤0.16% (Low carbon for weldability)

Tensile Strength,360–480 MPa

Yield Strength,≥235 MPa

Impact Energy,≥27J (at 20∘C)

Surface Finish,"Sandblasted, Pickled, or Black Lacquer"

Testing Standard,Non-destructive (UT/RT) and Hydrostatic

Certification,EN 10204 3.1 / CE Marked (PED)

Traceability,Fully Stamped Heat and Batch Numbers

Max Service Temp,Up to +450∘C (Standard boiler service)

Key Operational Advantages

High-Temperature Integrity: Unlike standard S235JR (ST37.2) steel, P235GH is specifically tested and certified for pressure equipment operating at elevated temperatures without significant loss of strength.

PED Compliance: These elbows meet the requirements of the Pressure Equipment Directive (PED), ensuring they are legally and technically suitable for high-risk industrial boiler and pressure vessel applications.

Superior Weldability: The low carbon and manganese levels ensure that butt-welded joints are clean, strong, and resistant to cracking, even under the thermal cycling of steam systems.

Flow Efficiency: The 1.5D radius reduces turbulence and pressure drop across the bend, protecting the inner wall from localized erosion-corrosion caused by high-velocity fluids.