Must the manhole flange cover of a liquid chlorine storage tank be made of forgings?
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I would like to ask everyone: can the manhole flange cover of liquid chlorine storage tanks not be made from 16Mn forgings? Can Q345R plate be used? Plate thickness 48mm
Sure. But can you process it? How to roll and shape it? It is also not suitable for welding... forgings are more cost-effective.
Sir, just considering thickness, what thickness of plate is generally used for forgings? I have previously used 65mm thick Q235A steel plates on mechanical equipment (not chemical containers).
The original poster is talking about a flange cover! ! How can there be such a thing as rolling? ? ! ! !
Flange covers can be manufactured using Q345R steel plates.
The manhole cover is made of Q345R.
On the 2nd floor, it was mistaken for a flange.:lol:lol
The drawings from the design institute specify 16MnIII forgings. What I want to know is whether Q345R steel plates (with two inspections) can be used as a substitute; does the standard permit this?
This post was last edited by fzujunru on 2015-9-1 16:47: HG 20615 P253 Table 4.0.1 Note 1: Flanges are generally made of forgings; those with necks that require welding must also be forged, while steel plates can only be used for flange covers. In other words, Flange can be made of steel plates.
It works; just require corresponding conditions for what needs to be detected. Also, why use a board? Is there already a board of the desired thickness available? Or purchase a single sheet of material in bulk for all the manhole covers. Anyway, we only do this when we have some remaining boards that can be used directly.
Simply put: in terms of strength, sheets generally have higher strength than forgings, but forgings offer better overall performance, so a comprehensive consideration is necessary. Secondly, design validation is also required; the designer will come up with a feasible solution based on specific conditions.