What We Make
HUAYUN produces investment cast stainless steel pipe fittings for fluid handling, food processing, chemical, and marine applications. Our silica sol casting process produces smooth internal flow surfaces that minimize turbulence and reduce pressure drop — critical for hygienic and high-flow applications. Fittings are available in standard ASME, DIN, and SMS dimensions, or custom-engineered to your drawing.
Technical Specifications
Available Variants
Elbow 90° / 45°
Long / short radius, butt-weld or socket
Tee (Equal / Reducing)
Straight and reducing configurations
Reducer
Concentric and eccentric
Flange
Slip-on, weld-neck, blind, threaded
Union
Threaded, tri-clamp, butt-weld
Cross
Equal and reducing
Cap / Stub End
Butt-weld, socket-weld
Custom Fitting
From your drawing or sample
Available Grades
General-purpose grade for water, food, and non-aggressive chemical service. Excellent surface finish and weldability.
Preferred for chloride environments, seawater, and aggressive chemical service. Low carbon for post-weld corrosion resistance.
Cast equivalent of 316L. Preferred for valve and pump bodies where pressure integrity and corrosion resistance are critical.
For highly aggressive environments — offshore, desalination, chemical processing. Superior strength and pitting resistance.