444 316 Stainless Steel Seamless Pipe For Petrochemical Applications

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 444 316 stainless steel seamless pipe for petrochemical applications in China. With abundant experience, we warmly welcome you to wholesale customized 444 316 stainless steel seamless pipe for petrochemical applications from our factory. For price consultation, contact us.

444 316 Stainless Steel Seamless Pipe for Petrochemical Applications
You can get a better understanding of the 444 ss steel pipe for Petrochemical Applications here.

444 stainless steel is a ferritic stainless steel, the national standard brand is 00Cr18Mo2, its composition contains ultra-low carbon nitrogen, chromium content of 18% and molybdenum content of 2%, and has strong corrosion resistance. This type of stainless steel is usually stabilized with niobium or titanium, which prevents intergranular corrosion after welding.

Compared with austenitic stainless steel such as 304 or 316L, the biggest advantage of 444 stainless steel is its excellent resistance to chloride ion stress corrosion cracking. At the same time, the resistance to chloride ion pitting corrosion of this steel type is also stronger than that of 304 stainless steel, and is equivalent to that of 316L stainless steel. . Therefore, 444 stainless steel is particularly suitable for making various water treatment devices. 444 stainless steel has ultra-low carbon and nitrogen impurity elements, and also adds molybdenum elements to improve pitting corrosion resistance, and niobium or titanium elements for stabilization.

444 Stainless Steel Seamless Pipe for Petrochemical Applications Description

Company Description

Gnee (Tianjin) Trading Co., Ltd. stands as a formidable force in the business world, distinguishing itself through its exceptional strengths in professional services and unwavering commitment to customer relationships. With a resolute focus on excellence, the company has solidified its reputation as a trusted partner, catering to the diverse needs of clients with utmost proficiency and care. This introduction will delve into the company's unparalleled expertise in providing top-notch professional services, the emphasis on personalized customer interactions, and how these attributes have cultivated enduring partnerships, making Gnee a true industry leader in delivering value and satisfaction to its clientele.

Q. How do you control the quality during the polishing process?
1)As for the mirror polish square/rectangular tube , we will polish it as least four times)
2)During the polishing processing, we set a special sanding wheel to polish the welding part.
3)To avoid scratches,after polishing,the tubes will be lay out on a steel crate then we could lift the whole steel crate instead
of the tube.
4)On the other hand, we use the gunny bags to protect the tube's surface when the tube laying-out.

Q. How do you inspect the tubes?
The Quality inspectors inspect the tubes during each production processes from raw material,tube welding,polishing,packaging.
1).Before the production of each machine, we will have the first checked and record the data.
2).During the production, our inspector and engineer have been carefully moniting and we record the data every two hours.

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