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Hastelloy C-22 Seamless Pipe Nickel Alloy Tube ASTM B622 Corrosion Resistant Cold-Drawn with Pickling Surface Treatment
Product Details
| Model Number | HASTELLOY C-22 | Shape | Round |
|---|---|---|---|
| Technique | Cold-Drawing | Surface Treatment | Pickling |
| Specification | OD 6-630mm | Production Capacity | 50000kgs |
| Nickel Content | Balance | Chromium Content | 20.0-22.5% |
| Molybdenum Content | 12.5-14.5% | Tungsten Content | 2.5-3.5% |
| Iron Content | ≤6.0% | Ultimate Tensile Strength | 114 Ksi (70°F) |
| Yield Strength | 54 Ksi (70°F) | Elongation | 62% (70°F) |
| Hardness | ≤95 HRB | ||
| Highlight | Corrosion Resistant Hastelloy C-22 Seamless Pipe,Cold-Drawn Nickel Alloy Tube,Pickling Surface Treatment ASTM B622 Seamless Round Tube |
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Product Description
Alloy C-22 (HASTELLOY C-22) Seamless Pipe
Size: 15 (O.D. 21.3mm) × 2.1mm thickness × 2,000mm length
Product Overview
Hastelloy C22 Seamless Nickel Alloy Tube ASTM B622 Seamless Round Tube
Alloy C-22 is an enhanced nickel-chromium-molybdenum-tungsten alloy designed for superior performance in aggressive industrial environments. This alloy demonstrates exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making it ideal for demanding applications.
Key Advantages
- Superior overall corrosion resistance compared to Alloy C-276
- Outstanding resistance to chloride pitting, crevice corrosion, and stress corrosion cracking
- Excellent performance in oxidizing aqueous environments including wet chlorine and nitric acid/chloride mixtures
Chemical Composition
Hastelloy C22, UNS N06220
| Element | Ni | Cr | Mo | Mn | Si | C | S | P | Cu | V | W | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | Balance | 20.0 | 12.5 | -- | -- | -- | -- | -- | -- | -- | 2.5 | -- |
| MAX | Balance | 22.5 | 14.5 | 0.5 | 0.08 | 0.015 | 0.02 | 0.02 | 2.5 | 0.35 | 3.5 | 6.0 |
Mechanical Properties
| Temperature (°F) | 70 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
|---|---|---|---|---|---|---|---|---|
| Ultimate Tensile Strength (ksi) | 114 | 107 | 98 | 95 | 92 | 88 | 83 | 76 |
| 0.2% Yield Strength (ksi) | 54 | 49 | 41 | 36 | 35 | 34 | 32 | 31 |
| Elongation (%) | 62 | 65 | 66 | 68 | 68 | 67 | 69 | 68 |
| Hardness MAX (HRB) | 95 | -- | -- | -- | -- | -- | -- | -- |
Fabrication Guidelines
While ductile enough for cold working, intermediate annealing may be required due to work hardening. Forging should occur between 1750-2050°F followed by rapid cooling. Annealing is recommended at 2020-2150°F with rapid quenching to prevent formation of detrimental phases between 1400-1800°F. Welding can be performed using gas tungsten-arc, gas metal-arc, and shielded metal-arc processes.
Industry Standards
Hastelloy C22, UNS N06220 ASTM Specifications
| Product Form | Standard |
|---|---|
| Pipe Seamless | B622 |
| Pipe Welded | B619 |
| Tube Seamless | B622 |
| Tube Welded | B626 |
| Sheet/Plate | B575 |
| Bar | B574 |
| Forging | B564 |
| Fitting | B366 |
Applications
- Pharmaceutical industries for corrosion-resistant fittings and tubing
- Cellophane manufacturing processes
- Chlorination systems
- Pesticide production equipment
- Incineration scrubber systems
- Chemical process industry including flue gas scrubbers, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing
- Waste water processing systems
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