Years in special steel
Years at Xintongda
Alloy families handled
Standards covered
Huang Bin is the International Trade Manager at Zhejiang Xintongda Special Steel Manufacturing Co., Ltd., one of China’s specialty seamless pipe and tube manufacturers. With 21 years in the special steel industry and 5 years at Xintongda, Huang Bin bridges the company’s production capabilities with the technical requirements of buyers worldwide. His daily work spans grade selection, standards compliance, and order specification across stainless steel, duplex, super-duplex, nickel alloys, Inconel, Monel, Incoloy, and titanium families, covering ASTM, ASME, JIS, DIN, EN, and GB specifications. He holds dual bachelor’s degrees in Education and Law, and works closely with Xintongda’s metallurgical and quality assurance teams to ensure every order matches international standards.
Super duplex S32750 or hyper duplex S32707? Compare PREN, pitting resistance, and yield side by side, and learn exactly when the stronger corrosion performance of S32707 is worth the premium, and when S32750 is still the right call.
Seawater at roughly 19,000 ppm chloride damages standard stainless steels, and material selection mistakes show
Use PREN to shortlist candidate grades, then specify CPT testing on the actual production heat to qualify it.
Duplex and super duplex stainless steels share the same dual-phase microstructure. Both contain roughly 50%
Both 304 and 316 are austenitic stainless steels that resist corrosion, handle high temperatures, and
Incoloy 825 and Inconel 625 are both nickel-based alloys built for extreme corrosion resistance. But
