fittings in stainless steel, Stainless steel
https://www.racmet.com/en-ww/joints-in-stainless-steel.aspx
Products in the present product range are made in AISI 304/304L/316/316L austenitic stainless steel. ... The range of traditional fittings in stainless steel Inside the company catalogue, the product range in LIGHT BLUE includes:   Elbows, concentric reducers, caps and Tees with ends to be butt welded, available in AISI 304L e [...]

stainless steel and carbon steel welding and threading joints, Welding and threaded fittings
https://www.racmet.com/en-ww/welding-and-threading-joints.aspx
Read More Products in stainless steel The items in stainless steel are made in austenitic stainless steel AISI 304 and 316. Being extremely corrosion-proof, the products are widely used in industrial plants under pressure, water treatment plants, potable water treatment, compressed air and technical gas distribution.The product ranges in LIGHT BLUE includes: [...]

Raccorderie Metalliche and compressed air plants
https://www.racmet.com/en-ww/compressed-air-plants.aspx
Raccorderie Metalliche developed its own bonded CrNiMo 1.4404 (AISI 316L) steel products,  Ø15 to Ø168 mm. ... In such cases we recommend the use of stainless steel pipes AISI 316 l (1.4404) or AISI 304 (1.4301). As to supply designers and installers the best possible solution, inoxPRES [...]