EN 1092-1 Type 05 Blind flanges in P235GH/P250GH are essential components for terminating piping runs in pressure-regulated systems. While these "GH" grades are technically carbon steels for elevated temperatures (often mistakenly grouped with stainless due to their high-performance clean finish), they offer superior heat resistance compared to standard structural steel. These solid discs are bolted to the end of a line, providing a pressure-tight seal that is easily removable for future inspection or maintenance.
Technical attributes
Standard: EN 1092-1
Flange Type: Type 05 (Blind)
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 and Machined
Facing Type: Type B (Raised Face)
Surface Finish: 3.2 to 12.5 micrometers
Carbon Content: Max 0.16 percent (P235GH)
Manganese Content: 0.60 to 1.20 percent
Yield Strength: Min 235 MPa
Tensile Strength: 360 to 480 MPa
Impact Energy: Min 27 Joules at 20C
Hardness: Max 187 HBW
Service Temp: -10C to 450C
Certification: EN 10204 3.1
Primary Industry: Pressure Vessels / Boilers
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