Large Diameter Flanges

Forged Components is a global manufacturer of large diameter flanges produced in accordance with ASME B16.47, Series A & B for sizes NPS 26” to NPS 60” in pressure/temperature rating 75 through 900.

Upon request, we manufacture the forging of flanges and blinds that are custom-designed to customer dimensional requirements. We have an extensive track record of producing large diameter flanges from a wide variety of material grades.

Our extensive raw material inventory allows us to manufacture forged flanges to the most challenging customer-specified product chemistry requirements.

General Notes for FCI Standard Large Diameter Flanges

CODES: FCI large diameter flanges are manufactured in compliance with ASME Section II, Section VIII, Div. 1, and ASME B16.47 Series A and B.

MATERIALS: All materials comply with the applicable ASME and ASTM specifications. Full traceability is mandated by our quality system. Standard forged material is carbon steel SA105. Large diameter flanges can also be furnished in other carbon steels, alloy steels, stain- less, high nickel and non-ferrous alloys upon request.

BORES: Large diameter flange bores are to be specified by Purchaser.

FACING: Standard facing is raised face to ASME B16.47 Series A or B as applicable. The 0.06” raised face is included in thickness “C” and length “Y” dimensions for Class 75, 150 and 300 large diameter flange connections. The 0.25” raised face is not included in thick- ness “C” and “Y” dimensions for Class 400, 600, and Class 900 large diameter flange connections. Other standard and special facings are available upon request.

LENGTHS: Listed lengths are standard. Other lengths are available on special order.

FLANGES:  Flange dimensions and drilling are in accordance with ASME B16.47 Series A or B as applicable. Studs, bolts, nuts, and gaskets are not furnished.

HEAT TREATMENT: All standard connections over Class 300 rating are supplied in the normalized condition in accordance with the requirements of ASME Section II. Other heat treatment requirements can be provided upon request.

TOLERANCE: Manufacturing tolerances as a minimum, will meet the requirements of ASME B16.47 unless otherwise specified