Marking method for oval head

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The elliptical head is mainly composed of a half ellipsoid and a cylindrical straight edge section. The main function of the straight edge section is to avoid the abrupt change in the radius of longitudinal curvature at the joint weld of the head and cylinder body, so as to improve the stress state of the weld.Mainly used in medium and low containers.In addition, the oval head has been included in the national industry standard JB/T 4746 "steel pressure vessel head". There are two types.Another is the standard oval head with the outer diameter as the reference, and the code name is ehb. the marking method of the oval head is as follows: for example, the nominal diameter is 1500mm, the nominal thickness is 10mm, the material is 16MnR, the standard oval head with the inner diameter as the reference is marked as: EHA 1500X 10-16mnrjb /T 4746.

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Marking method for oval head

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