Flat Flanges

A Flat Flange serves as a crucial connecting component in numerous piping systems, linking pipelines, valves, and additional equipment. It is engineered to create a smooth, leak-proof joint, ensuring system integrity across all pressure levels. This type of flange is utilized in industries such as oil and gas, chemical processing, and water treatment due to its durability and dependability.

Material Specifications

Our Flat Flanges are constructed from robust, corrosion-resistant materials that provide long-lasting service. Notably, the Flat Flange is recognized for its capability to completely seal off a pipe, making it ideal for a variety of industrial applications.

Advance Forging procures its flanges from a certified international Manufacturer and Stockist  of Flat Flange adhering to global standards in Kolkata, West Bengal, Odisha, Chhattisgarh, Assam, Andhra Pradesh, Hyderabad, Telangana, Chennai, Uttar Pradesh, Bihar, Ahmedabad, and Gujarat. We can offer both stainless steel and carbon steel flat flanges in all sizes directly from the mill to support projects within India and for export to other regions worldwide. We have developed these high-quality, durable plate flanges for the oil and gas and power plant industries as an alternative to the Chinese types, which are no longer available in India.

Standard Specification for Flat Flanges

• Dimensions: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
• Size: 1/2″ (15 NB) to 48″ (1200NB)
• Class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6, 10, 16, 25, 40, etc.
• DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638, DIN 2673
• BS: BS 4504, BS 4504, BS 1560, BS 10
• PN: PN6, PN10, PN16, PN25, PN40
• Flanges Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Material & Grades of Flat Flanges:

• Stainless Steel Flat Flanges : ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L Flat Flanges
• Duplex & Super Duplex Steel Flat Flanges : ASTM A182 / ASME SA182 F44, F 45, F51, F 53, F 55, F 60, F 61 Flat Flanges
• Carbon Steel Flat Flanges : ASTM A105 / ASME SA105 ASTM / ASME A 350 , ASTM A181 LF2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Flat Flanges
• Low Temperature Carbon Steel Flat Flange: ASTM A350, LF2, LF3 Flat Flanges
• Alloy Steel Flat Flanges : ASTM A182 / ASME SA182 & A387 F1, F5, F9, F11, F12, F22, F91 Flat Flanges
• Copper Alloy Steel Flat Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
• Nickel Alloy Flat Flanges : ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020) Flat Flange