Intelligent Testing and Analysis of Dissimilar Steel Welds for Industrial Throttle Flowmeter

Table 1

Welding specimen.

No.	Shell material	Shell thickness (mm)	Throttling material	Bottom welding material	Cover welding material	Heat treatment
Specimen 1	12Cr1MoVG	28	304	R31	R317	Yes
Specimen 2	12Cr1MoVG	28	304	ER308	R317	No
Specimen 3	12Cr1MoVG	28	304	ER309	R317	No
Specimen 4	12Cr1MoVG	28	304	ER309	R317	Yes