Manufacturing conditions for stainless steel pressure vessels
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Our company currently holds a certification for manufacturing D1D2 carbon steel. Now we plan to apply for a certification for manufacturing D1D2 stainless steel. What equipment does the company need to add? What is the budget required? What are the requirements regarding the premises? Please advise. Thank you.
A separate stainless steel workshop is required; at least a section of the existing workshop should be set aside for stainless steel processing, and there should be a dedicated stainless steel rolling machine
A separate area in the workshop needs to be set aside for stainless steel work; it must be strictly separated from carbon steel materials.
Your company currently holds a manufacturing license for D1D2 carbon steel; now it plans to apply for a manufacturing license for D1D2 stainless steel. According to the \"Rules for Licensing the Design of Pressure Vessels and Pressure Pipelines\", a manufacturing license for Class D pressure vessels should cover both carbon steel and stainless steel, right? It’s just that your company has never previously manufactured stainless steel pressure vessels. It is necessary to add equipment such as roll formers (specific for stainless steel), silicon rectifier welders, and TIG welders (which can be shared). The main requirement is to set aside a dedicated area (approximately 500–1000 m2) to prevent mixing with carbon steel and avoid ferrite contamination. If the workshop building is already available and carbon steel pressure vessels are being produced continuously, it should cost around 30,000 to 50,000 yuan.
Thank you all. The drum of the coiler is made of carbon steel; is it required that the drum be made of stainless steel? Or cover it with a layer of rubber on top? The operating platform also requires either stainless steel plates or rubber sheets to be laid on it. Thank you!
Just cover it with rubber; wrap rubber around the rollers of the rolling machine