ASTM A105N Forged Steel Materials Normalized Heat Treatment,
Welded Neck WN RF High Pressure 900# SCH.80 4" Standard: ASME B16.5
Product Item: Welded Neck Flange
Material: ASTM A105N Forged Steel
Size: 4 Inch, DN100
Pressure: Class 900 LB, PN150
Thickness: SCH.80
Standard: ASME B16.5