Looking for a reliable provider of forged stainless steel weld neck flanges? Look no further than our ASTM A182 F44 flanges. Measuring 4 inches and DN100, these flanges are designed to withstand Class 150 LB and PN20 pressures. With an SCH 10S rating and RF end according to ANSI B16.5 standards, our flanges offer superior performance and durability. Trust our standardized products for your industrial needs.