Super alloy Hastelloy C276 Flanges are made from a Nickel-Molybdenum-Chromium alloy known as Hastelloy C276. It is characterized by excellent corrosion resistance in many aggressive media, good thermal stability and weldability, and superior formability compared to other alloys. The most common type of flange manufactured in this material is the weld neck flange, which has been used across industries for over 30 years due to its dependable performance and wide range of applications.


Hastelloy C276 Flanges, Hastelloy® Alloy C-276 Flange, UNS N10276 Flanges, Alloy C276 Plate Flange, Hastelloy C276 Pipe Flanges, Hastelloy C276 Plate Flanges Suppliers, Distributors of ASME SB564 Hastelloy C-276 Blind Flanges, ANSI B16.5 Hastelloy C276 Plate Flange, Hastelloy® C276 Pipe Flange, Hastelloy C276 Socketweld Flanges, Hastelloy C276 Blind Flanges, ASTM B564 Hastelloy Alloy C-276 Slip On Flanges Dealer, Hastelloy C276 Industrial Flanges Stockists in Mumbai, India.

Hastelloy C276 Flanges corrosion resistance

UNS N10276 Flanges are highly corrosion resistant due to their high chromium and molybdenum content. Weldneck flanges of this alloy offer excellent resistance to pitting, crevice corrosion, stress-corrosion cracking, oxidizing and reducing environments. It also has good resistance to acidic chlorides, seawater, and brine solutions, making it a great choice for saltwater applications.


ASTM B564 UNS N10276 WNRF Flange, Class 300# C-276 Hastelloy Lap Joint Flanges Exporters, Hastelloy C-276 Flanges Dealer, ASME 16.5 Hastelloy Alloy C276 Slip On Raised Face (SORF) Flanges, UNS N10276 Hastelloy Socket weld Flanges, C276 Nickel Alloy Weld Neck Flanges Manufacturer, Hastelloy C276 Orifice Flange Traders, C276 Hastelloy Ring Type Joint Flanges (RTJ) Wholesaler.

Alloy C276 Flanges Heat Resistance

ASTM B564 flanges have excellent heat resistance, withstanding up to 1,015°C (1,850°F) of continuous exposure and 1,455°C (2,650°F) in intermittent applications. The combination of molybdenum and chromium offers extremely good corrosion resistance that has proven successful in a variety of high-heat environments. Additionally, Alloy C276 is highly resistant to stress corrosion cracking caused by chloride ions.

Hastelloy C276 Flanges

Hastelloy C276 Flanges

C276 Flanges Chemical Features

C276 Hastelloy flanges are weld neck flanges characterized by high chromium content and molybdenum, giving them superior corrosion resistance. Hastelloy C276 is highly resistant to stress corrosion cracking and crevice corrosion. It has good formability and weldability, making it ideal for petrochemical, pulp and paper applications, nuclear waste processing, chemical process industry, etc. Its mechanical properties also make it suitable for heavy engineering purposes such as valves or pressure vessels where exposure to extreme temperatures or corrosive media is present.

Hastelloy C276 Flanges Uses

Hastelloy C-276 Flanges are commonly used in industrial applications due to their excellent corrosion resistance and high-temperature performance. Key features include a Weldneck flange design that provides improved weld integrity, superior strength and stability. Additionally, they offer a range of temperature ranges from cryogenic to elevated temperatures making them ideal for various mediums such as water treatment, chemicals, petrochemicals and more.

What are the benefits of using Hastelloy C276 flanges?

Hastelloy C276 flanges have several advantages over other materials. They are highly resistant to corrosion & have excellent strength, making them ideal for use in harsh environments. They can also withstand high temperatures and have good ductility and toughness.

What are the common types of Hastelloy C276 flanges?

The most common types of Hastelloy C276 flanges are slip-on flanges, weld neck flanges, socket weld flanges, and blind flanges. Slip-on flanges are used to connect pipes or tubes by sliding them over the end of the pipe or tube.

What are Hastelloy C276 Flanges?

Hastelloy C276 is a nickel-molybdenum-chromium alloy that is highly resistant to corrosion, including in harsh environments containing acidic and alkaline solutions.

Werkstoff No 2.4819 Nickel Alloy Flat Face Flanges, Nicrofer® 5716 Flange Manufacturer, Hastelloy® C-276 Socket Weld Raised Face Flanges (SWRF) Traders, ASTM B564 Hastelloy C276 Pipe Flanges, EN 1092-1 Hastelloy Alloy C276 Reducing Flanges, Hastelloy C276 Welded Flange, Hastelloy® C-276 Spectacle Blind Flanges Suppliers, UNS N10276 Pipe Flange, C276 Hastelloy Weld Neck Raised Face Flanges (WNRF) Flanges Exporters, Hastelloy® Alloy C276 Square Flanges, Hastelloy C-276 BS4504 Tongue & Groove Flanges.

Hastelloy® Alloy C276 Socket Weld Flanges Specification

Specifications ASTM B564 / ASME SB564

Dimensions ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size 1/2″NB TO 60″NB

Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Grade Hastelloy C276 Flanges UNS (N10276), DIN (2.4819)

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Hastelloy C-276 Flanges Equivalent Indian Standard

STANDARD UNS WNR. AFNOR EN JIS OR GOST
Hastelloy C276 N10276 2.4819 - NiMo16Cr15W NW 0276 ЭП760 ХН65МВУ

ASTM B564 Hastelloy® Alloy C276 Forged Flanges Chemical Composition

Grade Ni C Mo Mn Si Fe P S Co Cr W V
Hastelloy C276 Balance 0.01 max 15–17 1.0 max 0.08 max 4–7 0.04 max 0.03 max 2.5 max 14.5–16.5 3–4.5 0.35 max

C-276 Hastelloy ASME SB564 Threaded / Screwed Flanges Mechanical Properties

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Hastelloy C276 8.89 g/cm3 1370 °C (2500 °F) Psi – 1,15,000 , MPa – 790 Psi – 52,000 , MPa – 355 40 %

ASTM B564 UNS N10276 Flanges Latest Price List

  • ASTM B564 UNS N010276 WN flange
    FOB Price: US $1-60 / Kilogram
  • UNS N10276 W.Nr.2.4819 flange
    FOB Price: US $100-300 / Piece
  • UNS N10276 flange
    FOB Price: US $100-300 / Piece
  • Hastelloy alloy ASTM B355 ASME SB355 B574 c276 c22 c2000 b2 b3 w x Forged Plate Flange Manufacturer India
    FOB Price: US $10-50 / Kilogram
  • HASTELLOY C22 ASTM B564 SO flange
    FOB Price: US $1-100 / Piece
  • ASTM B564/B574 Hastelloy C22
    FOB Price: US $10-118 / Piece
  • ASTM B564 Hastelloy C22 06022
    FOB Price: US $10-118 / Piece
  • ASTM B564/B574 Hastelloy C22 UNS 06022
    FOB Price: US $10-118 / Piece
  • Astm b564 hastelloy alloy b/b2 forged flanges
    10 Kilograms (Min. Order)
  • ASTM B564 B574 Hastelloy C22 N
    FOB Price: US $10-118 / Piece
  • ASTM B564 Hastelloy C22 N06022
    FOB Price: US $10-118 / Piece
  • ASTM B564 UNS N06686 forgings
    FOB Price: US $0.00001-999999 / Piece
  • HASTELLOY B/B2 ASTM B564 Weld neck flange
    FOB Price: US $1-100 / Piece
  • HASTELLOY B/B2 ASTM B564 10" Weld neck flange
    FOB Price: US $1-300 / Kilogram
  • UNS N1001/N10655 ASTM B564 Alloy steel Blank RF flange
    FOB Price: US $15-30 / Kilogram
  • ASNI B16.5 ASTM B564 WN RF flange
    FOB Price: US $15-30 / Kilogram

Hastelloy Flanges Physical Properties

DENSITY (G/CM 3) 8.89
DENSITY (LB/IN 3) 0.321
MELTING POINT (°C) 1325 – 1370
MELTING POINT (°F) 2415 – 2500

Alloy C276 Flanges Weight Chart

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 Flanges PN14 Flanges 95 67 4 M12 14
AS 2129 Flange Table C Flanges 95 67 4 13 14
Table D Flanges 95 67 4 13 14
Table E Flanges 95 67 4 13 14
Table F Flanges 95 67 4 13 14
Table H Flanges 114 83 4 16 17
Table J Flanges 114 83 4 16 17
ANSI B16.5 Flanges ANSI 150 Flanges 89 60 4 13 16
ANSI 300 Flanges 95 67 4 13 16
ANSI 600 Flanges 95 67 4 13 16
ANSI 900 Flanges 121 83 4 19 22
ANSI 1500 Flanges 121 83 4 19 22
ISO 7005 (DIN) Flange PN6 Flanges 80 55 4 M10 11
PN10 Flanges 95 65 4 M12 14
PN16 Flanges 95 65 4 M12 14
PN20 Flanges 90 60.5 4 M14 16
PN25 Flanges 95 65 4 M12 14
PN40 Flanges 95 65 4 M12 14

Hastelloy C276 Pipe Flange Pressure Ratings

ASME/ANSI B 16.5 Slip on Flange, Welding Neck Flange, High Hub Blind Flange, Blind Flange,Lap Joint Flange, Socket Weld Flange, Ring Type Joint Flange, Threaded Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47 Blind Flange [Series A & B], Welding Neck Flange
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36 Slip on Flange, Welding Neck Flange, Threaded Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 Hubbed Slip on Flange, Welding Neck Flange, Lapped Pipe End Flange, Hubbed Threaded Flange, Loose Plate Flange, Plate Flange, Blank Flange, Loose Plate With Weld Neck Flange
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] Welding Neck Flange, Plate Flange, Hubbed Slip-On Hubbed Threaded,Blank Flange, Loose Plate With Weld On Plate Collar
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS Socket Welding Flange, Welding Neck Flange, Blind Flange, Slip-On Flange, Lapped Flange, Screwed Boss Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 Plate Slip-On Flange, Welding Neck Flange, Slip-On Boss Flange, Screwed Boss Flange, Blind Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

Hastelloy® Alloy C-276 Flat Face Flanges Schedule Chart

NPS (Nominal Pipe Size) SORF (Slip On) NPT (Threaded) SWRF (Socket Weld) Loose (Lap Joint) BLRF (Blind) WRNR (Weld Neck)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268

ASTM B564 Hastelloy C276 Pipe Flanges Dimensional Tolerance

Hastelloy C276 Flanges Tolerance Table
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)

Other Types of Hastelloy C-276 Industrial Flanges

  • Hastelloy C-276 Slip On Flanges
  • C276 Hastelloy® Pipe Flanges
  • Nickel Alloy C-276 Blind Flanges
  • Hastelloy® Alloy C276 Orifice Flange
  • Hastelloy Alloy C-276 Long Weld Neck Flanges

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