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Flange calculations methods
  • PREMIUM
Orifice plate and orifice flanges
Standard PN-Flange connection with external loads
ASME BPVC Sect. VIII: Welded Joint Locations Categories
Gasket selection for industrial piping EN 13480-3
  • PREMIUM
MAWP calculation procedure for pressure vessels
  • PREMIUM
ASME BPVC Sect. VIII Div. 1 – minimum, calculated and maximum test pressure
Leakage rate conversion

Category: ASME- FAQs

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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Pipes and line pipes
Pipes for pipelines: Comparison of ISO 3138 with API Spec 5L pipes

API Spec 5L specifies requirements since 1928 for manufacture of Line Pipe. The scope of the current issue is defined as: “Requirements for the (more…)

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Austenitic stainless steels: What is the difference between “L” grade and “H” grade?

The common austenitic grades of stainless steel, such as 304 and 316, are also available “standard” and with controlled low carbon “L” or high (more…)

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Standard bodies
What are designations for materials such as EN-Material No., Grade, AISI, or UNS?

The EN material number according to EN 10027-2 is a unique number and is primarily based on the chemical composition and is primarily used (more…)

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Leckage-drop
What is the definition of the leakage rate?

The definition of the leakage rate is necessary to make requirements comparable. The term leakage refers to the unintentional escape of gases or liquids (more…)

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U-stamp and CE Marking
Are the EN ISO 15608 Material groups comparable with the P-no groups ASME BPVC Section IX?
The ISO/TR 15608 Material groups are similar but not 1:1 comparable with the P-no groups acc. to ASME BPVC Section IX. The main difference between the two is that the ISO system allows any material within the scope of the …
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