ASME B16.5 is the most common use standard specification for manufacturing cast and forged steel pipe flange .
This standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flange and flanged fittings. ASME B16.5 standard covers Steel Pipe Flanges and Flanged Fittings from NPS 1/2 through NPS 24 Metric/Inch in pressure class 150 to class 2500.
Flange Type:
Welding neck, Slip on, Blind, Lap joint, Socket, Threaded.
Material:
ASTM A105, ASTM A350 Gr. LF2, ASTM A350 Gr. LF6 Cl.1, ASTM A350 Gr. LF3, ASTM A350 Gr. LF6 Cl.2, ASTM A350 Gr. LF1 Cl.1, ASTM A182 Gr. F1, ASTM A182 Gr. F2, ASTM A182 Gr. F11 Cl.2, ASTM A182 Gr. F22 Cl.3, ASTM A182 Gr. F5a, ASTM A182 Gr. F9, ASTM A182 Gr. F91, ASTM A182 Gr. F12 Cl.2, ASTM A182 Gr. F5, ASTM A182 Gr. F92, ASTM A182 Gr. F304, ASTM A182 Gr. F304H, ASTM A182 Gr. F316, ASTM A182 Gr. F316H, ASTM A182 Gr. F317, ASTM A182 Gr. F304L, ASTM A182 Gr. F316L, ASTM A182 Gr. F317L, ASTM A182 Gr. F321, ASTM A182 Gr. F321H, ASTM A182 Gr. F347, ASTM A182 Gr. F347H, ASTM A182 Gr. F348, ASTM A182 Gr. F348H, ASTM A182 Gr. F310, ASTM A182 Gr. F44, ASTM A182 Gr. F51, ASTM A182 Gr. F53, ASTM A182 Gr. F55, ASTM B462 Gr. N08020, ASTM B564 Gr. N02200, ASTM B564 Gr. N04400, ASTM B564 Gr. N06600, ASTM B564 Gr. N08800, ASTM B462 Gr. N10665, ASTM B462 Gr. N10675, ASTM B462 Gr. N10276, ASTM B564 Gr. N06625, ASTM B564 Gr. N08825, ASTM B462 Gr. N06022, ASTM B462 Gr. N06200, ASTM B572 Gr. R30556, ASTM A479 Gr. N08904, ASTM B462 Gr. N08367, ASTM B564 Gr. N08031, ASTM B462 Gr. N06030, ASTM B462 Gr. N06035, ASTM B564 Gr. N08810, ASTM B511 Gr. N08330, ASTM B564 Gr. N06230
Surface Treatment：
Coated With Anti-Rust Oil Coating, Transparent paint, Blue Paint, Black Paint, Yellow Paint, Epoxy Coated, Electro Galvanizing, Hot dip galvanizing, Powder coating, Electro Polishing, Dacromet.
End Flange Facings：
Raised Face, Large or small male face, Large or small female face, Small male face(on end of pipe), Small female face(on end of pipe), Large or small tongue face, Large or small groove face, Ring Joint Face.
Connection Type：
Welding, Threaded, Lap joint.
Product Test Method：
PT penetrant inspection, Direct-reading Spectrograph, UT trasonic flaw detector, X-ray detector, Magnetic particle detector.
Production Process：
Free Forging, Die Forging, Plate Cutting, Ring Rolling Forging, Investment Casting.
Finish Type：
Stock Finish, Spiral Serrated Finish, Concentric Serrated Finish, Smooth Finish.