Product welding test pieces
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09MnNiDR for low-temperature equipment; the head has seams and requires hot pressing molding. Several product test pieces should be made, and the equipment requires overall heat treatment.
Mark, wait for the experts to respond… Welding test plates, base metal test plates, heat treatment test plates?
The specifications are provided in the 3 test plates NBT47106
Could you tell me which item in 47016 deals with the number of test plates to use?
It also depends on whether your equipment has manholes (longitudinal seams) or water pockets, as well as on whether the welding processes and heat treatment conditions are identical; these factors determine how many test plates are needed.
Generally, after thermoforming and heat treatment, inspection is required; it is necessary to include a sample for this purpose. If inspection is needed after the entire heat treatment process, additional samples must be added.
So it seems that two test pieces should be brought, one of which goes with the head； Another piece went through heat treatment with the device, which should make it more comprehensive.
Generally, there are three: tension, bending, and impact
It depends on the specific requirements; in some cases, it is not necessary after overall heat treatment, as it involves no change to the product’s heat treatment state but merely stress relief. There is also the need for simulated post-weld heat treatment; in some cases, this simulation is carried out alongside the use of actual equipment. Different requirements may exist, and backups might also be necessary. It depends on the specific requirements. It can’t be generalized.
The term \"block\" here does not mean that; these test items were sampled from a single plate.