General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic. This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such “upset” conditions occur frequently.
The characteristics of Hastelloy C22
- Resistant to pitting, crevice corrosion and stress corrosion cracking
- Outstanding resistance to both reducing and oxidizing media
- Excellent resistance to oxidizing aqueous media
- Exceptional resistance to a wide variety of chemical process environments including strong oxidizers such as ferric acids, acetic anhydride, and seawater and brine solutions
- Resists the formation of grain-boundary precipitates in the weld heat-affected zone
- Excellent weldability
Standard Inventory Specifications
| Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting |
| B622 | B619 | B622 | B626 | B575 | B574 | B564 | B366 |
Common Trade Names
- Alloy C-22
Common Applications of C22
- Pharmaceutical industries use alloy C-22 fittings and tubing to avoid contamination caused by corrosion related failures
- Cellophane manufacturing
- Chlorination systems
- Pesticide production
- Incineration scrubber systems
- Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing
- Waste water processing
Chemical Composition
C22 Chemical Composition
Element
Percent by Weight
Ni
Nickel
Balance
Cr
Chrom
20-22.5
Co
2.5 max
C
Carbon
0.01 max
Mn
Manganese
0.5 max
Mo
12.5-14.5
Fe
Iron
2.0-6.0
S
Sulfur
0.0 max
P
0.02 max
Si
Silicon
0.08 max
W
2.5-3.5 – 34.00
V
0.35 max
Physical Properties
Physical Properties of C22
| Melting Point (°C) | Density | Modulus of Elasticity in Tension |
| 480 – 570 | 8.69g/cm3 | 206 GPa |
Mechanical Properties
Mechanical Properties of C22
| Product Form | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness (HRb) |
| Plate (.25”- 1.75”) | 112 | 53 | 62 | 89 |
| Sheet (.038”- .15”) | 112 | 63 | 54 | 93 |
| Bar (.50”- 5.50”) | 115 | 55 | 60 | 89 |
The characteristics of Hastelloy C22
- Resistant to pitting, crevice corrosion and stress corrosion cracking
- Outstanding resistance to both reducing and oxidizing media
- Excellent resistance to oxidizing aqueous media
- Exceptional resistance to a wide variety of chemical process environments including strong oxidizers such as ferric acids, acetic anhydride, and seawater and brine solutions
- Resists the formation of grain-boundary precipitates in the weld heat-affected zone
- Excellent weldability
C22 Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
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C22 Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
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C22 Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
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C22 Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
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C22 Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
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C22 Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
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C22 Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
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C22 Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
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C22 Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
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C22 Flange
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
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C22 Tee
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
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C22 Cross
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
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C22 Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
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C22 Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
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C22 Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
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C22 Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
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C22 Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
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C22 Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
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C22 Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
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C22 Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
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C22 Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
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C22 Plate
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
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C22 Coil
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
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C22 Strip
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
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C22 Wire
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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C22 Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
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C22 Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: C22…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…