Duplex steel ASTM A182 F60 LWN flanges

The customer’s drawing is a welded part, we think it is better to make an integral flange, no weld, but also save the cost of secondary heat treatment. After communication with the customer, the customer changed the drawing and changed the duplex stainless steel welding part into an integral forged long weld neck flange.

Customer’s original drawings

Product Name: Long Weld Neck Flange
Material: ASTM A182 F60(S32205)
Size: 3″
Pressure Class: Class 150
Flange Face: RF
Pipe Thickness: SCH40S
Ends: Plane
Heat Treatment: Solution
Manufacture Standard: ASME B16.5
Raw Material: ASTM A182
Forming: Foring + Heat treatment+ Machine+Drilling