Quality, customer service, cost and delivery are our main concerns.

Material List

Our manufacturing includes a broad range of materials:

Stainless

303, 304L, 304H, 309, 310, 316L, 316H, 317L, 321, 347, 410, 416, 2205, F55, F60, 2507, 17-4PH, NIT 40, NIT 50, NIT 60, 446

Nickel Alloys

A20, N200, A400, K500, A600, A601, A625, A718, A800, A825, 904/L, 330, 254SMO, AL6XN, 25-6MO, C276, C22, B2, B3, HAST X, G30

Commercially Pure

TI 2, TI 12, TI 5, TI 7, ZIRC 702, TI 4- Miscellaneous 6061-T6, 6063-T6, 5086, 70/30, 90/10, F53

Carbon

LF2 / GR6, LF3 / GR3, A105 / A106, 4340, 4130, 4140, 1018, F55, F60, F65

Chrome Alloy

F 11, F 22, F 5, F 1, F 9, F 91

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Approval List

– Valero
– Conoco/Phillips
– Bechtel Jacobs
– Zeeco- Ferguson Enterprises
– Frischkorn
– Shale Inland
– McJunkin/Redman
– NOV/Wilson

– DNOW/Wilson
– General Electric
– Performance Contractors
– Lummus
– Southcross Energy
– Kiewit
– Ineos

– Tesoro
– Total Petrochemicals Inc
– Tranter
– Momentum Midstream
– Blue Racer Midstream
– Delek- Boardwalk
EXXON/MOBIL

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Certifications

ISO 9000-2015

American Society for Testing and Materials

American Society of Mechanical Engineers

American National Standard Institure

International Organization for Standardization

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Standards and Specifications

Buffalo Flange, Inc. products are manufactured in accordance with industry accepted standards including ASTM, ANSI, and ASME specifications.

Buffalo Flange has the capability to produce quality forged steel flanges to the following specifications (and more):

ASTM A350 LF1, LF2 & LF6 (Low Temperature)
ASTM A350 LF3 (Low Temperature: 3 1/2% Nickel)
ASTM A707 through L3 Class 3 (Low Temperature)
ASTM A182 F1 (Carbon Molybdenum)
ASTM A182 F5 (4-6% Chrome; .5% Molybdenum)
ASTM A182 F9 (9% Chrome; 1% Molybdenum)
ASTM A182 F11 (1.25% Chrome; .5% Molybdenum)
ASTM A182 F12 (1.00% Chrome; .5% Molybdenum)
ASTM A182 F22 (2.25% Chrome; 1% Molybdenum
ASTM A182 304 & 304L (Stainless)
ASTM A182 316 & 316L (Stainless)
ASTM A182 321 (Stainless)
ASTM A182 347 (Stainless)
ASTM A694 F42 through F65 (High Strength)
DIN Flanges – We meet a variety of DIN flange specifications

Get in touch

We are ready to help with your flange needs