Selection of execution standards for Q345E pipes

2018-12-31View Original

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Let’s discuss what standards should be used for Q345E pipes, and what is the scope of application of these standards? For example, how should one choose between GB/T8163 and GB/T6479 to achieve cost-effectiveness? Why does chlorine often see people choosing 6479 instead of 8163? Why? PS: Why choose 9948 for phosgene?

Reply #22018-12-31

Refer to this GB150.2

Reply #32019-01-01

It’s better to get a reply from upstairs; for pipes as well, GB 20801 should be taken as a reference

Reply #42019-01-03

I often see in various documents that the maximum operating temperature for 20-inch steel pipes is -20, but here it is mentioned as 0℃

Reply #52019-01-03

This indicates that the requirements for pipes are lower than those for containers.

Reply #62019-01-04

Weren’t Q345 discontinued? It has been replaced by Q355

Reply #72019-01-07

The pipe standards haven’t been updated yet.

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Selection of execution standards for Q345E pipes

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