Hastelloy C-2000 Seamless Pipe(ASTM B622)
ASTM B622 specification covers seamless pipe and tube of nickel and nickel-cobalt alloys. Hastelloy C-2000 seamless pipe with the addition of Copper to the Nickel-Chromium-Molybdenum system, resistant to an extensive range of corrosive chemicals, including sulphuric, hydrochloric and hydrofluoric acids.
The combination of Molybdenum and Copper provide excellent corrosion resistance to reducing media, while the high Chromium content gives good oxidising resistance. Like other nickel alloys, Hastelloy C2000 is ductile, easy to form and weld, while possessing excellent resistance to stress corrosion cracking in chloride-bearing solutions.
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Hastelloy C-2000 Pipes & Tubes Specifications
| Specifications | ASTM B622, ASTM 619, ASME SB622, ASME SB619 |
| Standard | ASTM, ASME, and API |
| Size Range | 15"NB – 150"NB |
| Outer Diameter | 1.250″ – 6.000″ (30-150mm) |
| Wall Range | 0.095″ – 1.000″ (2.5-25mm) |
| Schedule | SCH 10, SCH20, SCH30, SCp0, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Pipes |
| Length | Single Random, Double Random & Cut Length |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tube |
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Cr | 22.00 | 24.00 |
| Mo | 15.00 | 17.00 |
| Fe | – | 3.00 |
| C | – | 0.01 |
| Si | – | 0.08 |
| Co | – | 2.00 |
| Mn | – | 0.50 |
| P | – | 0.025 |
| S | – | 0.01 |
| Cu | 1.30 | 1.90 |
| Al | – | 0.50 |
| Ni | bal |
Heat treatment of finished parts
The typical heat treatment of Hastelloy C2000:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed or Spring Temper | Stress Relieve | 400 – 450 °C (750 – 840 °F) | 2 Hr | Air |
Properties
The typical mechanical properties of Hastelloy C2000
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <1000 N/mm² | <145 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +400 °C | -330 to +750 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1300 – 1600 N/mm² | 189 – 232 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +400 °C | -330 to +750 °F |
Industrial Applications
Hastelloy C-2000 seamless pipes are indispensable in sectors where failure is not an option:
- Chemical Processing: Reactors, heat exchangers, and piping systems handling mixed acids.
- Pharmaceutical Manufacturing: Equipment requiring ultra-high purity and resistance to cleaning agents (e.g., CIP/SIP systems).
- Pollution Control: Scrubbers and waste treatment systems exposed to acidic effluents.
- Oil and Gas: Components for sour gas processing and offshore applications.
ASTM B622 Hastelloy C-2000 seamless pipe represents the forefront of materials technology for corrosive environments. Its unique copper-enhanced composition, combined with seamless construction, offers unmatched versatility and reliability for industries demanding the highest standards of safety and performance.
Lork Group supplies premium ASTM B622 Hastelloy C-2000 seamless pipes with full material certification. Contact us for technical specifications and competitive pricing.
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