Product Name: Stainless Steel Nipoflanges, Nipple Flange
Design Standard: ANSI B16.5
Material: ASTM A182 F304, Stainless Steel
Size: 6 Inch * 1 Inch (DN150 * DN25)
Pressure Class: Class 300 LB (PN50)
Wall Thickness: SCH 40S * SCH 80S
Source: https://www.landeeflange.com/stainless-steel-nipoflanges-ansi-b16-5-a182-f304-6-1-inch.html