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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

SN EN 4557
Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Tees nipples, welded end; Inch series

Title (German)

Luft- und Raumfahrt - Rohrverschraubung 37° mit Kugelbuchse, aus hochwarmfestem Stahl - T-Verschraubungen zum Anschweißen; Inch-Reihe

Edition 2003-11

Original language English

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Terminology

Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

SN EN 4557 Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Tees nipples, welded end; Inch series

Want to learn more?

SN EN 4557
Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Tees nipples, welded end; Inch series