ALLOYC276 （Hastelloy C276）
Characteristics
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 BarsSpecification: 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 | |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | |
Nuts and washersSpecification: Nut, JIS B1181Class 1 Washer, JIS B1256 Normal Series Grade.A
| M4 | M5 | M6 | M8 | M10 | M12 | M16 | M20 |
|---|---|---|---|---|---|---|---|
| ● | ● | ● | ● | ● | ● | ● | ● |
※Please enquire about grades and sizes not in stock.
Hex BoltSpecification:JIS B1180, Semi-Finished Type
| 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M6 | Half Threed | ● | ● | ● | |||||||
| Full Threed | ● | ● | ● | ||||||||
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | |||
| Half Threed | |||||||||||
| Full Threed | |||||||||||
| M8 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | |
| Half Threed | ○ | ○ | ○ | ● | ○ | ○ | ○ | ○ | |||
| Full Threed | ○ | ○ | ● | ○ | ● | ○ | ○ | ○ | ○ | ||
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | |||
| Half Threed | |||||||||||
| Full Threed | |||||||||||
| M10 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | |
| Half Threed | ○ | ○ | ○ | ● | ○ | ● | ○ | ○ | ○ | ||
| Full Threed | ○ | ○ | ○ | ● | ● | ● | ● | ○ | ● | ○ | |
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | |||
| Half Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||
| Full Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||
| M12 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | |
| Half Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||
| Full Threed | ○ | ○ | ○ | ● | ○ | ● | ○ | ○ | ○ | ○ | |
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | |||
| Half Threed | ○ | ○ | ○ | ○ | ○ | ||||||
| Full Threed | ○ | ○ | ○ | ○ | ○ | ||||||
| M16 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | |
| Half Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | |
| Full Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ● | ○ | |
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | |||
| Half Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||
| Full Threed | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ||
※●・・・Stock ○・・・Short time production
※Please enquire about grades and sizes not in stock.
※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).
Applications
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 | ||||
| ASTM | UNS N10276 | 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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