Hydrogen storage carbon steel material?

[PMCap]

Can anyone suggest a specific material specification for a hydrogen storage vessel - 24" diameter carbon steel 580psig -40F to 144F ASME Section VIII, Div. 1

SA 516GR70? SA333GR1? - Impact tested per material specification

Vessel is in cyclic service - 88000 0 to full pressure cycles over 20 years service.

Hydrogen embrittlment Concern?

Is radiography a code requirement?

Thanks in advance.

Any help would be appreciated

 

[metengr]

SA 516GR70? SA333GR1? - Impact tested per material specification

Reply; What are your impact test requirements for the vessel. What is the minimum design metal temperature? Answers to these questions will dictate material selection.

Hydrogen embrittlment Concern?

Reply; No

Is radiography a code requirement?

Reply: You need to follow the design requirements in the ASME Boiler and Pressure Vessel Code, Section VIII, Div 1.

 

[PMCap]

Thank you for the quick response.

Minimum design temperaure is minus(-)40F.

The two materials I mentioned would be impact tsted per material specification requirements at minus(-)50 F.

Vessel is in cyclic operation - 88,000 fill and empty pressure cycles from 0 psig to 580 psig over its lifetime. I would use a stress range reduction factor of f = 0.6 in addition to any joint efficiency factor E based on the extent of radiography performed in the design.

My primary question is - did I select an appropriate carbon steel grade of material for the application? Are there other specifications and grades of carbon steel that are more commonly used for hydrogen storage vessels?

Thanks

 

[metengr]

The SA 333 Grade 1 material is acceptable based on your MDMT.