Hastelloy C276 Tube Nickel Alloy Seamless Tube ASTM B622 ASME SB-622 EN 10204 for Chemical Processing
Hastelloy C276 Tube Chromium Nickel Alloy Steel Seamless Tube For Chemical Processing
Hastelloy C-276 Tube is a seamless nickel-molybdenum-chromium alloy tube (UNS N10276 / DIN 2.4819) engineered for extreme corrosion resistance in both oxidizing and reducing environments. It is widely used in chemical processing plants, petrochemical production, pollution-control equipment, pulp and paper applications, and any environment where strong acids, chlorides, or mixed corrosive media are present.
Specifications
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Alloy: Hastelloy C-276 (UNS N10276 / DIN 2.4819)
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Form: Seamless tube (welded tubes may also exist depending on supply)
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Applicable Standards:
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Seamless tube: ASTM B622 / ASME SB-622
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Welded tube/pipe: ASTM B619/B775, ASTM B626/B751, ISO 6207, DIN 17751
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Sizes: OD typically from 6.35 mm (0.25") up to several inches
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Wall Thickness: SCH5, SCH10, SCH40, and custom precision sizes
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Condition: Annealed, solution-treated, cold-drawn or bright-annealed as required
Main Features
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Outstanding resistance to both oxidizing and reducing corrosion environments
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Excellent resistance to pitting, crevice corrosion, and chloride stress-corrosion cracking
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Stability and strength at elevated temperatures
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Superior resistance to strong acids including sulfuric, nitric, hydrochloric, and mixed acids
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Excellent weldability with minimal carbide precipitation
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Robust mechanical durability for long service life
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Suitable for extreme chemical processes where stainless steels fail
Our Advantages
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Corrosion in aggressive chemicals
The high chromium–molybdenum–tungsten chemistry provides exceptional protection against acids, halides, chlorides, and mixed corrosive streams. -
Long-term service life
The alloy maintains high performance under harsh chemical and thermal exposure, reducing downtime and replacement frequency. -
Weldability without performance loss
Low carbon levels help ensure corrosion resistance is retained in the as-welded condition without special post-weld heat treatment. -
International compliance
Products are produced to ASTM B622/ASME SB-622 and can be supplied with EN 10204 material certification for global project requirements. -
Cross-industry suitability
The broad chemical resistance makes this tube ideal for chemical, petrochemical, marine, power-generation, and environmental systems.
Chemical Composition
| Alloy / Grade | Ni (balance) | Cr (%) | Mo (%) | W (%) | Fe (%) | Co (%) | Other Elements |
|---|---|---|---|---|---|---|---|
| Hastelloy C-276 (UNS N10276) | Balance (~57%) | 14.5–16.5 | 15.0–17.0 | 3.0–4.5 | 4.0–7.0 | ≤2.5 | Mn ≤1.0; V ≤0.35; Si ≤0.08; C ≤0.010 |
| Comparison: Hastelloy C-22 | Balance | 20–22.5 | 12.5–14.5 | — | — | — | Low C, low Si |
| Comparison: Inconel 625 | ~61 | 20–23 | 8–10 | — | ~5 | — | Nb + Ta additions |
| Comparison: Monel 400 | Ni–Cu alloy | Very low | — | — | — | — | Cu 28–34% |
| Comparison: 316 Stainless Steel | Fe-based | ~16–18 | 2–3 | — | Balance Fe | — | Contains Cr–Ni–Mo typical of austenitic SS |
Mechanical Properties
| Property | Value |
|---|---|
| Density | ~8.89 g/cm³ |
| Tensile Strength | ~759 MPa (approx. 110 ksi) |
| Yield Strength (0.2%) | ~355 MPa (approx. 52 ksi) |
| Elongation | ≥ 40% |
| Hardness | ~90 HRB (typical) |
| Modulus of Elasticity | ~205 GPa |
| Melting Range | ~1370–1395°C |
Applicable Standards
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ASTM / ASME: ASTM B622, ASTM B619, ASTM B626, ASTM B775, ASTM B751
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EN / DIN: EN 10204 (test certificates), DIN 17751 (material standard)
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ISO: ISO 6207 for nickel alloy tubes
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Global equivalents: BS, GOST, JIS standards may apply based on region
Application Fields
General Industries
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Chemical processing
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Petrochemical production
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Oil & gas (including sour service)
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Marine and seawater environments
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Pollution control and flue-gas desulfurization
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Pulp and paper chemical systems
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Pharmaceutical and high-purity environments
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,
it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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