Hastelloy C-276 UNS N010276 Flange

Product Detail


Hastelloy C276  (W.Nr 2.4819) Flange

Flange Material : Hastelloy C-276(UNS N10276)

Flange Types :  According to clients requirments

Delivery Date : 15-30 days

Payment Term :  T/T, L/C, Paypal, Ect

Sekoinc Metals Main produce and supply special alloys Flanges, we accept sample order

Hastelloy C-276 alloy is a tungsten-containing nickel-chromium-molybdenum alloy, which is considered to be a versatile corrosion resistant alloy due to its extremely low silicon carbon content.

It is mainly resistant to wet chlorine, various oxidizing "chlorides", chloride salt solution, sulfuric acid and oxidizing salts. It has good corrosion resistance in low and medium temperature hydrochloric acid.

Hastelloy C-276 Chemical Composition
C Cr Ni Fe Mo W V Co Si Mn P S
≤0.01 14.5-16.5 balance 4.0-7.0 15.0-17.0 3.0-4.5 ≤0.35 ≤2.5 ≤0.08 ≤1.0 ≤0.04 ≤0.03
Hastelloy C-276 Physical Properties
Density (g/cm3) Melting Point (℃)  Thermal conductivity
( W/(m•K)
Coefficient of thermal expansion
Elastic modulus (GPa) Hardness 
Operating temperature
(°C )
8.89 1323-1371 11.1 11.2  205.5 90  -200~+400
Hastelloy C-276 Alloy Typical Mechanical Properties
Condition Tensile strength
Yield strength
bar 759 363 62
slab 740 346 67
sheet 796 376 60
pipe 726 313 70



   Flange  Types :

→ Welding plate flange(PL)                              →  Slip-on Neck Flange (SO)

→ Welding neck flange (WN)                                   →  Integral flange (IF)

→ Socket welding flange (SW)                                →  Threaded flange (Th)

→ Lapped joint flange (LJF)                                     → Blind flange (BL(s)


incoloy 825 flange, monel flange, Alloy 926 flange

 Main  Flange   Materials  We  Produce

        Stainless Steel :  ASTM A182

      Grade F304 / F304L, F316/ F316L,F310, F309, F317L,F321,F904L,F347

        Duplex Stainless Steel: Grade F44 / F45 / F51 / F53 / F55 / F61 / F60

    •    Nickel  Alloys :   ASTM B472, ASTM B564, ASTM B160

                Monel 400, Nickel 200, Incoloy 825Incoly 926, Inconel 601, Inconel 718

            Hastelloy C276Alloy 31 Alloy 20Inconel 625Inconel 600

    •    Titanium Alloys :  Gr1 / Gr2 / Gr3 /Gr4 / GR5/ Gr7 /Gr9 /Gr11 / Gr12

♦ Standards:

          ANSI B16.5 Class150、300、600、900、1500(WN,SO,BL,TH,LJ,SW)


Hastelloy C-276 Available Products in Sekonic Metals

Inconel 718 bar,inconel 625 bar

Hastelloy C-276 Bars & Rods

Round bars/Flat bars/Hex bars,Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts

welding wire and spring wire

Hastelloy C-276 Wire

Supply in welding wire and spring wire in coil form and cut length.

Hastelloy C-276 Flange

Standards size and  customized drawing can be produced by us with precison tolerance

Sheet & Plate

Hastelloy C-276 sheet & plate

Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm  to 100mm.

Hastelloy C-276 seamless tube & Welded pipe

Standards size and  customized dimension can be produced by us with small tolerance

inconel strip,invar stirp,kovar stirp

Hastelloy C-276 strip & coil

Soft condition and hard condition with AB bright surface, width up to 1000mm

Fasterner & Other Fitting

Hastelloy C-276 Fasteners

Hastelloy C-276  materials  in forms of Bolts,screws,flanges and other fasterners, according to clients specification.

Why Hastelloy C-276 ?

1. Excellent corrosion resistance to the majority of corrosive media in the condition of oxidation and reduction.
2. Excellent resistance to corrosion, crevice corrosion and stress corrosion cracking performance.C276 alloy is suitable for various chemical process industries containing    oxidation and reducing media.High molybdenum,chromium content in alloy shows resistance to chloride ion erosion,and tungsten elements also further improves its  corrosion resistance.C276 is only one of few materials which can show resistance to wet chlorine,hypochlorite and chlorine dioxide solution corrosion,and show significant  corrosion resistance to the high concentration chlorate solution (such as ferric chloride and copper chloride).

Hastelloy C-276 Application field:

Widely used in the field of chemical and petrochemical,such as application in organic components containing chloride and catalytic systems,especially suitable for high temperature,inorganic acid and organic acid (such as formic acid and acetic acid) mixed with impurities,sea water corrosion environments. 
Used to provide in the form of the following main equipment or parts:
1. Pulp and paper industry, such as cooking and bleaching container.

2. The washing tower of FGD system, heater, wet steam fan again.

3. The operation of the equipment and components in the acidic gas environment.

4. Acetic acid and acid reactor;

5. Sulfuric acid condenser.

6. Methylene diphenyl isocyanate (MDI).

7. Not pure phosphoric acid production and processing.


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