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Hastelloy C276 Precision Seamless Pipe Tube Bright Surface OD6 - 114mm
| Plaats van herkomst | China |
|---|---|
| Merknaam | DELTA |
| Certificering | ISO |
| Modelnummer | Hastelloy C276 |
| Min. bestelaantal | 10 kg |
| Prijs | 40 - 50 USD/Kg |
| Verpakking Details | Standaardverpakking voor export |
| Levertijd | 5 - 12 dagen op basis van de hoeveelheid |
| Betalingscondities | L/C, T/T, Western Union |
| Levering vermogen | 3 ton per week |
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xProductdetails
| Producten | Hastelloy C276 pijpen | Cijfer | Hastelloy C276 |
|---|---|---|---|
| Diameter | 6 - 219 mm | Lengte | op aanvraag op maat gesneden |
| Standaard | Astm en | SERVICE | Snij |
| Laadpoort | Shanghai -haven | Oppervlak | Helder |
Productomschrijving
Hastelloy C276 Precision Seamless Pipe Tube Bright Surface OD6 - 114mm
More Specification Informations
| Products Name | Hastelloy C276 pipes |
| Diameter | 6.0 - 219mm |
| Thickness | 0.6 - 10.0mm |
| Length | custom cutting any length as request |
| Surface | bright |
| Brand | DELTA |
| Service | cutting, Polishing |
| MOQ | 2 Kgs |
| Other Type | round bar, strip,coil,pipe.sheet, plate,wire.etc |
| Packing | waterproof paper and wooden pallets, wooden box |
| Loading Port | Shanghai Port |
| Price term | EXW,FOB,CIF,CFR |
| Deliver time | within 12 days |
Hastelloy C276 Precision Seamless Pipe Tube Bright Surface OD6 - 114mm
Hastelloy C276 precision seamless pipe with a bright surface and outer diameter (OD) ranging from 6mm to 114mm is a high-performance nickel-based superalloy product, engineered for demanding industrial environments where corrosion resistance, mechanical stability, and dimensional accuracy are critical. Its unique composition and seamless manufacturing process make it a preferred choice for applications involving aggressive chemicals, high temperatures, and extreme pressure.
1. Core Specifications
The dimensional and material specifications of this precision seamless pipe are strictly controlled to meet industrial precision requirements, ensuring consistency and reliability in end-use scenarios.
| Specification Category | Details |
|---|---|
| Product Type | Precision seamless pipe (no welded joints, ensuring structural integrity) |
| Alloy Grade | Hastelloy C276 (UNS N10276 / W.Nr. 2.4819) |
| Surface Finish | Bright surface (achieved via polishing or passivation; Ra ≤ 0.8μm typical, enhancing corrosion resistance and aesthetics) |
| Outer Diameter (OD) | 6mm - 114mm (continuous range available; custom OD can be provided for specific needs) |
| Inner Diameter (ID) | Varies by wall thickness; common ranges: 2mm - 108mm (calculated as OD - 2×wall thickness) |
| Wall Thickness (WT) | 1mm - 8mm (standard options: 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm; custom thickness available) |
| Length | Standard: 1m - 6m (fixed length); optional: coil form (for small OD pipes) or cut-to-length (per customer requirements) |
| Tolerance | - OD: ±0.05mm (precision grade); - Wall Thickness: ±0.03mm; - Length: ±2mm |
2. Chemical Composition (Weight %)
Hastelloy C276’s exceptional performance stems from its carefully balanced alloying elements, which work synergistically to resist corrosion and maintain mechanical strength.
| Element | Content Range | Function |
|---|---|---|
| Nickel (Ni) | 57.0 min | Base metal; provides ductility and resistance to general corrosion |
| Chromium (Cr) | 14.5 - 16.5 | Enhances oxidation resistance and resistance to sulfuric/nitric acid corrosion |
| Molybdenum (Mo) | 15.0 - 17.0 | Key element for resisting pitting, crevice corrosion, and chloride-induced stress corrosion cracking (SCC) |
| Tungsten (W) | 3.0 - 4.5 | Complements molybdenum to improve resistance to aggressive halide environments |
| Iron (Fe) | 4.0 - 7.0 | Improves fabricability and reduces alloy cost without compromising performance |
| Carbon (C) | 0.01 max | Low carbon content minimizes carbide precipitation (avoids intergranular corrosion) |
| Silicon (Si) | 0.08 max | Controls melting and casting properties; kept low to prevent oxide inclusions |
| Manganese (Mn) | 1.0 max | Aids in deoxidation during manufacturing; low content avoids brittleness |
| Phosphorus (P) | 0.04 max | Impurity control; high P can cause embrittlement |
| Sulfur (S) | 0.03 max | Impurity control; high S degrades corrosion resistance and ductility |
3. Key Mechanical Properties
The mechanical properties of Hastelloy C276 precision seamless pipe ensure it can withstand mechanical loads and thermal cycling in harsh conditions. All values are tested in the solution-annealed condition (typical heat treatment: 1150°C - 1200°C, rapid quenching), which optimizes corrosion resistance and ductility.
| Property | Test Standard | Value (Typical) |
|---|---|---|
| Tensile Strength (σb) | ASTM E8 / ISO 6892 | ≥ 860 MPa |
| Yield Strength (σ0.2) | ASTM E8 / ISO 6892 | ≥ 415 MPa |
| Elongation at Break (δ) | ASTM E8 / ISO 6892 | ≥ 40% |
| Hardness (HB) | ASTM E10 / ISO 6506 | ≤ 210 HB |
| Impact Toughness (Charpy V-notch) | ASTM A370 / ISO 148 | ≥ 100 J (at room temperature) |
| Maximum Service Temperature | - | Up to 1093°C (oxidizing environments); up to 1204°C (reducing environments) |
| Minimum Service Temperature | - | Down to -270°C (maintains ductility in cryogenic applications) |
4. Corrosion Resistance
Hastelloy C276 is renowned as one of the most corrosion-resistant alloys, especially in aggressive chemical environments. Its resistance is attributed to the formation of a stable, protective oxide film on the surface, which regenerates if damaged.
Key Resistance Advantages:
- Pitting & Crevice Corrosion: Excellent resistance in chloride-rich environments (e.g., seawater, brines, chlorinated solvents) due to high Mo/W content. Critical Pitting Temperature (CPT) in 3.5% NaCl solution: ≥ 40°C.
- Acid Resistance: Resists most strong acids, including sulfuric acid (up to 90% concentration), hydrochloric acid (dilute to moderate concentrations), acetic acid, and phosphoric acid.
- Alkali Resistance: Stable in concentrated alkalis (e.g., sodium hydroxide) at elevated temperatures.
- Oxidation Resistance: Withstands continuous exposure to air at 1093°C; no significant scaling or spalling.
- Stress Corrosion Cracking (SCC): Immune to chloride-induced SCC (a common failure mode for stainless steels) in temperatures up to 200°C.
5. Manufacturing & Quality Standards
To ensure consistency, performance, and safety, this precision seamless pipe adheres to international manufacturing and quality standards:
5.1 Manufacturing Standards
- ASTM B622: Standard specification for seamless nickel- and nickel-alloy pipe (primary standard for Hastelloy C276 pipe).
- ASME SB622: Boiler and Pressure Vessel Code (BPVC) version of ASTM B622, for pressure-containing applications.
- ISO 6208: International standard for seamless nickel and nickel-alloy pipes.
- DIN 17752: German standard for nickel-based alloy pipes.
5.2 Quality Control
- Non-Destructive Testing (NDT): 100% ultrasonic testing (per ASTM A578) for internal defects; optional eddy current testing for surface flaws.
- Chemical Analysis: Spectrometric analysis (XRF/ICP) to verify alloy composition.
- Mechanical Testing: Tensile, hardness, and impact tests on sample coupons from each batch.
- Dimensional Inspection: Laser measurement for OD, ID, and wall thickness tolerance.
- Surface Inspection: Visual inspection (per ASTM A961) to ensure bright, defect-free surface; optional passivation (per ASTM A967) for enhanced corrosion resistance.
6. Equivalent Grades
Hastelloy C276 has standardized equivalents across major industrial regions, ensuring interchangeability in global projects:
| Region | Standard | Equivalent Grade |
|---|---|---|
| USA | UNS | N10276 |
| USA | ASTM/ASME | Hastelloy C276 |
| Europe | EN (CE) | NiMo16Cr15W (W.Nr. 2.4819) |
| Japan | JIS | NW276 |
| China | GB/T | NS334 |
| International | ISO | NiMo16Cr15W |
7. Applications
The combination of precision dimensions, bright surface, and exceptional corrosion/mechanical performance makes this pipe suitable for the following high-demand industries:
7.1 Chemical Processing
- Piping for transporting aggressive chemicals (sulfuric acid, hydrochloric acid, organic acids).
- Reactors, heat exchangers, and distillation columns (where corrosion resistance is critical).
7.2 Oil & Gas
- Downhole tubing and wellhead components (resists brines and sour gas/H₂S).
- Offshore platforms (withstands seawater corrosion and marine atmospheres).
7.3 Pharmaceutical & Food Processing
- Sanitary piping (bright surface minimizes bacterial adhesion; corrosion resistance prevents metal ion leaching into products).
- Equipment for sterile processing (compatible with cleaning agents like nitric acid).
7.4 Environmental Engineering
- Flue gas desulfurization (FGD) systems (resists sulfur dioxide and acidic condensates).
- Wastewater treatment plants (handles chlorinated and acidic wastewater).
7.5 Aerospace & Defense
- Hydraulic lines and fuel systems in aircraft (withstands high temperatures and fuel corrosion).
- Rocket engine components (resists extreme heat and oxidizing gases).
7.6 Energy
- Nuclear power plants (piping for coolant systems; low carbon content avoids radiation-induced embrittlement).
- Solar thermal power systems (handles high-temperature heat transfer fluids).
8. Handling & Storage Recommendations
To preserve the pipe’s performance and bright surface:
- Store in a dry, well-ventilated area (avoid moisture to prevent surface oxidation).
- Use non-abrasive padding (e.g., wooden pallets) to separate pipes and prevent scratches.
- Avoid contact with carbon steel or other metals (prevents galvanic corrosion).
- Clean with neutral detergents (avoid harsh chemicals like hydrochloric acid) if surface contamination occurs.
- For long-term storage, apply a thin layer of anti-corrosion oil (easily removable before use).
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