What does CALC.7 mean in the image? Thank you to all the seniors!
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I can’t upload images, so I have to type it out. What does CALC.7 mean in the axonometric diagram? ITEM DESCRIPTION: PIPE, CALC.7, BE, 20G, SMLS, GB/T5310. My understanding is that the calculated thickness of the pipe is 7 mm; I hope those who know more can provide some guidance. Thank you!
Take a look at the design specifications; the way each set of drawings is presented varies slightly
For large pipe diameters and those without wall thickness specifications in the standards, write the calculated thickness
5310 high-pressure boiler tubes come with different wall thickness grades~~~ I’m wondering if this designation refers to the tube type
This is what can be seen on the axonometric diagram.
Coming back to check this post again, the original poster’s approach is correct~~~ The thickness to be calculated is 7 mm, and when selecting the pipe wall thickness, it should be chosen appropriately based on the wall thickness classification tables (reference standards: ASME B36.10 OR SH3405). Additionally, 5310 is a mandatory standard, not a recommended one~~~ At least for now~~~ (2008 version)
GB/T 5310 is correct; many standards have been changed from mandatory to recommended. (See GB Standardization Administration Announcement No. 7 of 2017)