ALLOYC22 （Hastelloy C22）
Characteristics
ALLOY22 is a Ni-Cr-Mo alloy containing W and extremely low carbon and Si contents.
- • outstanding resistance to a wide range of corrosive media, under oxidizing and reducing conditions
- • excellent 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 １〜13 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.2 | 1.6 | 2 | 2.6 | 3 | 3.5 | 4 | 4.4 | 5 | 5.3 | 6 | 7.1 | 8 | 8.95 | 10 | 12 | 13 |
| ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ▲ | ▲ | ▲ | ▲ | ★ | |||||
| size 16〜50 | ||||||||||||||||
| 16 | 18 | 19 | 20 | 22 | 24 | 25 | 28 | 30 | 32 | 35 | 36 | 38 | 40 | 42 | 45 | 50 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | |||
| size 55〜135 | ||||||||||||||||
| 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ |
| size 140〜330 | ||||||||||||||||
| 140 | 145 | 150 | 155 | 160 | 165 | 170 | 180 | 190 | 200 | 210 | 220 | 230 | 250 | 280 | 300 | 330 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ | ★ |
| size 350 | ||||||||||||||||
| 350 | ||||||||||||||||
| ★ | ||||||||||||||||
Hex barsSpecification：ASTM B574
| 10 | 13 | 14 | 17 | 19 | 21 | 22 | 24 | 26 | 27 | 30 | 32 | 36 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ★ | ★ | ★ | ★ | ★ | ★ |
※Please enquire about grades and sizes not in stock.
Nuts and washersSpecification：Nuts JIS B1181 Class1 Washers,JIS B1256 Normal Series Grade.A
| M5 | M6 | M8 | M10 | M12 | M16 | M20 |
|---|---|---|---|---|---|---|
| ● | ● | ● | ● | ● | ● | ● |
※Please enquire about grades and sizes not in stock.
Hex BoltJIS 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 & Wire | ||
|---|---|---|---|---|---|---|
| Min | Max | Min | Max | |||
| Hastelloy C22 | 3.18～279.4 | 0.64～100 | ○ | △ | ||
*○: 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
“The chemical composition of Alloy 22 has been designed to give it outstanding corrosion resistance in as wide a range of media as possible, both oxidizing and reducing. The high chromiurn content of the alloy makes it particularly suitable for oxidizing conditions, including wet chlorine gas, hypochlorite solutions or oxidizing acids. It is remarkably resistant to localized attack by halide ions, even under severe conditions of low pH and high temperatures. It resists attack in media contaminated by oxidizing chlorides such as ferric chloride or cupric chloride.
Alloy 22 is also resistant to many reducing media. As a result it can be used for equipment in polyvalent chemical plant where widely varying conditions may be encountered. The very low carbon content of Alloy 22, together with its balanced composition, reduce the tendency to formation of grain-boundary precipitates in the heat-affected zone during welding,thus making it suitable in the as-welded condition for many applications in the chemical process industry.”
Applications
The versatile nature of Alloy 22 combined with its excellent mechanical properties mean that it can be used in a wide variety of applications, including:
Applications
- • organic syntheses
- • flue gas desulphurization
- • electrolytic galvanizing
- • plate heat exchangers
- • fine chemicals production
- • incineration plants
- • pharmaceutical intermediates
- • combustion-resistant alloy for high pressure oxygen applications
Chemical composition
| Ni | Cr | Fe | C | Mn | Si | Mo | W | Co | V | P | S | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | bal. | 20.0 | 2.0 | 12.5 | 2.5 | |||||||
| max | 22.5 | 6.0 | 0.0010 | 0.50 | 0.08 | 14.5 | 3.5 | 2.5 | 0.35 | 0.025 | 0.015 |
※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 | 310 | 690 | 45 | |
| Typical Values at RT | Solution Annealed | 402 | 794 | 57 | 197 |
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 N06022 | B574 | B575 | B622 | B619/B626 |
| ASME | SB574 | SB575 | SB622 | SB619/SB626 | |
| JIS | NW6022 | H4553 | H4551 | H4552 | |
| DIN | 2.4602 | 17752 | 17750 | 17751 | 17751 |
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