Question 92 on Boiler Foundations, November 18: (A certain score will be given to the top 40)
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True or False: 20g carbon steel pipe is referred to as boiler pipe grade 20 (). Thank you for your support; correct answers earn an additional +5–8 points, while incorrect answers earn +1 point
20g carbon steel pipe is referred to as boiler pipe grade 20 (incorrect)
Wrong. 20g is used to manufacture carbon steel plates with a thickness of 60–120 ram for various pressure-bearing components in boilers. 20G is a high-quality carbon structural steel used for manufacturing steam boilers, pipes, and other components that require high pressures or higher. It is widely used in the manufacture of economizers, superheaters, water walls, feedwater pipes, main steam pipes, etc., for media temperatures ≤ 430°C.
I don’t think it’s right; Boiler 20 must have different metal elements, right?
Error--------------------------------------------------
This post was last edited by Dawn Bellows on 2015-11-18 at 07:28. 20g carbon steel pipes are referred to as No. 20 boiler pipes; the “G” indicator indicates that it is steel intended for use in boilers, with different standards applied in this case.
True or False: 20g carbon steel pipe is denoted as No. 20 boiler pipe (False)
20g carbon steel pipe is denoted as Boiler Pipe No. 20 (X)
True or False: 20g carbon steel pipe is denoted as No. 20 boiler pipe (False)
True or False: 20g carbon steel pipe is denoted as No. 20 boiler pipe (False)
20g carbon steel pipe is expressed as No. 20 boiler steel pipe (correct)