About Stainless Steel Fittings
Type 304 stainless steel, made to ASTM A351, is the most common in the industry due to low cost, ease of manufacture and high resistance to corrosion. It can be found in food prep equipment, building materials (fittings, fasteners, etc.) and many others.
Class #150 has the following specifications:
-20°F - 150°F : 300 psi
200°F : 265 psi
250°F : 225 psi
300°F : 185 psi
350°F : 150 psi
Above 350°F : n/a
NPT threads are made to ANSI/ASME B1.20.1 standard and are common to all stainless steel fittings and pipe nipples we sell.
Frequently Asked Questions
Q: Are 304 steel fittings subject to galling?
A: All stainless steel types are subject to galling (seizing) to a greater or lesser degree. The best way to prevent this is to use nickel-infused pipe tape or pipe dope.
Q: Are these fittings lead-free?
A: 304 stainless steel is a food grade type, which is inherently (by composition) is lead-free.
Q: Can these fittings be welded?
A: No, these fittings are not suitable for welding.
Q: Are these fittings magnetic?
A: 304 stainless steel is austenitic (non-magnetic).
