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Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for JIS SMA400AW atmospheric corrosion resisting steel various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several JIS SMA400AW atmospheric corrosion resisting steel after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.
Compared with JIS SMA400AW atmospheric corrosion resisting steel, pressure vessel and boiler steel plates have such advantages: The pressure vessel and boiler steel should be pure, and the fracture structure of the boiler steel plate should be uniform without cracks and inclusions. Besides, the strain aging sensitivity is small, and the strain aging impact value of the pressure vessel and boiler steel plate is required to be no less than 50% of the non-aging impact value. That is why pressure vessel and boiler steel plate is first choice for fabricating pressure vessels and boilers, while JIS SMA400AW atmospheric corrosion resisting steel is not.
In the welding process, effectively preventing the stress and deformation of the component during the welding process is the key to ensuring the welding quality of the wear-resistant steel plate. In the welding process, after spot welding each part according to the position of the drawing, ensure that the size is consistent with the drawing. The welding method of symmetrical multi-layer multi-pass welding is adopted to ensure the appropriate welding process parameters, which can effectively prevent the welding deformation of the JIS SMA400AW atmospheric corrosion resisting steel, wear-resistant steel plate.
In November of 2015, Thailand one company contacted with us from Internet. They are find the trustable supplier of S355J2H seamless pipe JIS SMA400AW atmospheric corrosion resisting steel for there cable car supporter. Due to the special using of the pipes, they are very careful and servious when choosing the supplier. After one months contact and discussion by email, they come to our company. We drive to the pipe mill for visit of 2 days. Through this visit, they are very confident with our production ability and proucts quality. Finally, they accept the grade we suggest Q345D. After back to office, they put the order of 1400 tons pipe to us directly.