Stainless Steel Boiler Handhole and Manhole Plates In Stock

Many of the popular Handhole & Manhole sizes are listed below, but if you do not see the size you need, call us and we can get it! We carry both clip and stud style plates, which come with a neoprene handhole gasket with every plate.

304 stainless steel is the most common form of stainless steel used around the world, largely due to its excellent corrosion resistance and value. It contains between 16 and 24 percent chromium and up to 35 percent nickel, as well as small amounts of carbon and manganese.

316 stainless steel is the second-most common form of stainless steel. It has almost the same physical and mechanical properties as 304 stainless steel, and contains a similar material make-up. The key difference is that 316 stainless steel incorporates about 2 to 3 percent molybdenum. The addition increases corrosion resistance, particularly against chlorides and other industrial solvents.

All manholes are furnished with a neoprene gasket rated from -20°F to 170°F. (-29°C to 76°)