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Spectacle Blinds and other Line Blinds
Additional requirements for welding procedure qualification (WPQR) in accordance with EN 13445-4 clause 8.3
Flange gaskets characteristics
Flange calculations methods
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Orifice plate and orifice flanges
Hydrogen gasket compatibility for hydrogen applications
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Standard PN-Flange connection with external loads
ASME BPVC Sect. VIII: Welded Joint Locations Categories

Category: Material

Duplex stainless steels
Suitable Standard-Duplex and Super-Duplex steels for Pressure Equipments

This article provides an overview of duplex material specifications for pressure equipment applications. Compared with some other materials, Standard Duplex Steels and Super Duplex (more…)

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plant
Stainless steel materials with high resistance to chloride-induced stress corrosion cracking (SCC)

Stress corrosion cracking (SCC) is characterized by cracks propagating either transgranularly or intergranularly (along grain boundaries). Chlorides are widely present in many industrial and (more…)

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EN 13445 and ASME BPVC Section VIII
Duplex stainless steels – Classification in four groups

The PREN (Pitting Resistance Equivalent Number) for duplex steels is an important parameter for classifying duplex steels also from the point of view of (more…)

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weldolet
Weldolet – Integral reinforced forged branch outlets

Weldolet fittings – the Branch Connection Fittings are also named as Outlet fittings. Outlets are a family of forged products used to make 90 degree or 45 (more…)

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hydrogen
High temperature hydrogen attack (HTHA) of steels

Carbon steel process plant that operates with hydrogen at elevated pressure and temperature can be weakened by a phenomenon known as high temperature hydrogen attack (more…)

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Pipes and line pipes
Qualification of line pipes for pressurised hydrogen applications?

Piping in acc. to ISO 3183 and API SPEC 5L must be evaluated with regard to their suitability for the use of hydrogen. Additional (more…)

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hydrogen
Standards and specifications for steel materials in hydrogen systems

The infrastructure for hydrogen storage and transportation needs to be safely used for a carbon-neutral society. One of the most important issues for the (more…)

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Terms for hydrogen induced cracking processes of steels

The hydrogen induced cracking of steels takes place according to different processes. Both the environmental conditions and other influences such as stresses and the (more…)

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What are HIC resistant steels?

HIC-resistant steels are used when carbon steel is exposed to hydrogen sulphide (H2S) in the acidic or humid H2S environment of electrochemical corrosion reactions. (more…)

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