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Take the butt welding of 09MnNiDR plates with a base metal thickness of 12 mm as an example. Starting from material cutting, beveling, welding, non-destructive testing, heat treatment, specimen preparation, and physical and chemical testing (2 tensile tests, 4 bending tests, and 6 impact tests are required according to the standards).
Welding evaluation process flow and labor cost estimation: Cutting: Labor cost – The labor cost for cutting and binding rebar is generally calculated on a per-ton basis, at a price of 350–420 yuan per ton. The specific cost depends on the weight of the material to be processed and local market conditions. Beveling the groove: Labor cost: In small and medium-sized cities, the price is generally 68 yuan per square meter; if calculated on a daily basis, it ranges from 100 to 150 yuan per day. The specific cost depends on the area of the groove to be cut or the required labor hours. Welding: Labor cost: The labor cost for pipeline welding varies depending on the size of the pipelines. For 1-inch pipes, the labor cost is approximately between 14 yuan and 20 yuan. The specific cost depends on the welding length and local market conditions. Non-destructive testing: Labor costs: The costs associated with a non-destructive testing company include equipment usage fees, material costs, and technical service fees; it is not appropriate to equate the costs of such a company solely with labor costs. However, technical service fees can be regarded as a form of labor cost. The specific cost depends on the testing items, quantity, and local market conditions. Heat treatment: Labor cost: The labor cost per hour for heat treatment is approximately 18.75 yuan. The specific cost depends on the heat treatment time and regional market conditions. Test specimen processing: Labor costs: The labor costs associated with test specimen processing relate primarily to the total salary of the workers involved; the specific costs depend on the complexity of the processing, the amount of time required, and local market conditions. Assuming that processing the test piece requires 1 man-day, the labor cost is approximately 100 to 150 yuan. Physical and chemical tests: Labor costs: The cost of physical and chemical tests includes various testing and inspection items, with the specific cost depending on the types of tests and their quantity. It is not possible to provide a direct estimate for labor costs, but they are usually included in the total cost of physical and chemical tests.
It seems better to find a familiar factory to handle it; working on it alone involves too many procedures.
Find a metal material physical and chemical analysis center; they will provide you with a quote based on your requirements, as they have fairly complete equipment.
Welding process evaluation – great information, thanks!