Is the material 20#GB5310 the same as 20G?

2019-10-21View Original

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In the regulations regarding the marking and color coding of pipeline components, does the material specified as 20#GB5310 refer to 20G?

Reply #22019-10-22

20# is grade 20 steel, while 20G is steel specifically designed for boilers

Reply #32019-10-22

GB5310 is the standard for steel used in boilers

Reply #42019-10-22

This notation is incorrect; GB5310 only specifies 20G, not 20#. What he wants to say is probably 20G.

Reply #52019-10-23

Firstly, 20G and 20 are not the same; what it means is that you should purchase steel pipes made of grade 20 steel, to be tested in accordance with the GB5310 standards. However, the contents of elements such as P and S do not have to comply with those specified for 20G. Materials have also been ordered in this way. When the steam pressure is high but the temperature is acceptable, then GB5310’s grade 20 standard applies

Reply #62019-11-01

I made a mistake – who designed it? Mess things up

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Is the material 20#GB5310 the same as 20G?

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