EN 1092-1 Type 01 plate flanges in P235GH or P250GH are the European standard for pressure-purpose steel. These "Plate" flanges are essentially slip-on designs without a hub, used widely in boiler construction and heat exchangers. Unlike general structural steel, these "GH" grades are specifically tested for elevated temperature service. They offer excellent weldability and a compact profile, making them a cost-effective choice for low-to-medium pressure piping systems across the EU and global industrial markets.
technical attributes
Standard: EN 1092-1
Flange Type: Type 01 (Plate)
Material Grade: P235GH / P250GH
Material Number: 1.0345 / 1.0460
Pressure Rating: PN 6 to PN 100
Size Range: DN 10 to DN 2000
Manufacturing: Forged or Cut from Plate
Facing Type: Type A (Flat) or Type B (RF)
Surface Finish: 3.2 to 12.5 micrometers
Connection: Double Fillet Weld
Carbon Content: Max 0.16 percent (P235GH)
Manganese Content: 0.60 to 1.20 percent
Yield Strength: Min 235 MPa (P235GH)
Tensile Strength: 360 to 480 MPa
Hardness: Max 187 HBW
Service Temp: -10C to 450C
Certification: EN 10204 3.1
Primary Industry: Power and Heat Engineering
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