We are Distributors and Suppliers of Alloy C276 products.

ALLOYC276 (Hastelloy C276)

Corrosion Resistance
Chemical Composition
Mechanical properties
International Standard Comparision Chart Stock Form And Sizes
Round Bars
Hex Bars
Nuts And Washers
Spring Washer
Hex Bolt
Stud Bolt
Sourceable Materials


Alloy C276 is a Ni-Cr-Mo alloy containing W and extremely low carbon and Si contents. Excellent resistance to a wide range of corrosive media, under oxidizing and reducing conditionsExcellent resistance to pitting, crevice corrosion, and stress corrosion cracking.



Stock Form and Sizes

※ ◆1000㎜ ◎2000㎜ ▲3000㎜ ■3500㎜ ●4000㎜ ★2500㎜~3990㎜

Round Bars

Specification: ASTM B574/B564※ ASME SB574/SB564※ NACE MR0175(ISO 15156) ※B564/SB564 Apply to Forged Bar Only

size 1〜18
1.2 1.6 2 2.6 3 4 5 5.3 6 7.1 8 8.95 10 12 13 16 18
size 19〜60
19 20 22 24 25 28 30 32 35 36 38 40 42 45 50 55 60
size 65〜145
65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145
size 150〜350
150 155 160 165 170 180 190 200 210 220 230 250 280 300 330 350

Hex bars

Specification: ASTM B574

10 13 17 19 22 24 27 30 32 36

Spring Washer


※Please enquire about grades and sizes not in stock.

Hex Bolt

Specification:JIS B1180, Semi-Finished Type


  20A 25A 40A 50A 65A 80A 100A

※Please enquire about grades and sizes not in stock.

Sourceable Ex-Stock Material for Other Forms from Distributors World-Wide

Equivalent Round Bars Plate Pipe/Tube Welding Rod amp; Wire
Min Max Min Max
Hastelloy C276 3.18~279.4 0.35〜100

*○: Various sizes available in stock. △: Only limited sizes available in stock. ☆: Please contact us for more details. * We can supply materials and products that comply with various standards including ASTM, ASME, AMS, and NACE standards. Please contact us for more details.

Corrosion resistance

Alloy C276 can be used in many chemical processes with oxidizing and with reducing media. The high molybdenum and chromium contents render the alloy resistant to chloride ion attack. The tungsten content further increases this resistance. Alloy C276 is one of the few materials that is resistant to moist chlorine gas, hypochlorite and chlorine dioxide solutions. The alloy exhibits excellent resistance to concentrated solutions of oxidizing salts (such as iron (III) chloride and copper chloride).


Alloy C276 finds wide application in the chemical and petrochemical industry, for components in organic processes containing chlorides, and for catalytic systems. This material is especially suitable for use in situations where hot, contaminated mineral acids, solutions and organic acids (such as formic and acetic acid) as well as sea water are encountered.

Typical applications are:

  • Pulp and paper industry, e.g. for digestion and bleaching vessels
  • Scrubbers and special reheaters as well as wet-operating fans for combustion and flue gas desulphurisation systems
  • Equipment and components for sour-gas service
  • Reactors for acetic acid production
  • Sulphuric acid coolers
  • Methylene diphenyl isocyanate (MDI)
  • Manufacture and processing of technically impure phosphoric acid
  • Combustion-resistant alloy for high pressure oxygen applications

Chemical composition

  Ni Cr Fe C Mn Si Mo W Co V P S
min bal. 14.5 4.0       15.0 3.0        
max 16.5 7.0 0.010 1.0 0.08 17.0 4.5 2.5 0.35 0.025 0.010

※The values in the table are for reference only and do not guarantee minimum or maximum values. For further information, please contact us.

Mechanical properties(Round Bar)

  Condition Yield Strength(Mpa) Tensile Strength(Mpa) Elongation(%) Hardness(HB)
ASTM Min Value Solution Annealed 283 690 40  
Typical Values at RT Solution Annealed 402 794 60 195

Above standard values and typical values of Round Bar. Please contact us with any questions about reference or value of plate and pipe.
※The values in the table are for reference only and do not guarantee minimum or maximum values. For further information, please contact us.

International Standard Comparison Chart

  Material Round Bars Plates/Sheets Pipe/Tube
Seamless Welded
B574 B575 B622 B619/B626
ASME SB574 SB575 SB622 SB619/SB626
JIS NW0276 H4553 H4551 H4552  
DIN 2.4819 17752 17750 17751 17751

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