Laser Cutting Round, Square, Special Size Alloy C276 Nickel Alloy
Plate Sheets
Alloy C276 (also known as Hastelloy® C276) is a premium
nickel-molybdenum-chromium alloy renowned for its exceptional
corrosion resistance in harsh environments, making it a critical
material in chemical processing, energy, and marine industries.
Below is a comprehensive overview of its parameters, performance,
standards, specifications, and related services, with a focus on
laser-cut customizable shapes (round, square, special sizes).
1. Core Chemical Composition (Parameters)
Alloy C276’s superior performance stems from its precisely
controlled chemical composition, compliant with international
standards. The key elements (by weight percentage) are as follows:
| Element | Content Range (%) | Function |
|---|
| Nickel (Ni) | ≥ 57 | Base metal, provides structural stability and resistance to
chloride stress corrosion cracking |
| Molybdenum (Mo) | 15.0 – 17.0 | Enhances resistance to pitting, crevice corrosion, and sulfuric
acid environments |
| Chromium (Cr) | 14.5 – 16.5 | Improves oxidation resistance and resistance to nitric acid-based
media |
| Iron (Fe) | 4.0 – 7.0 | Optimizes mechanical strength and processability |
| Tungsten (W) | 3.0 – 4.5 | Boosts resistance to localized corrosion (e.g., in hydrochloric
acid) |
| Cobalt (Co) | ≤ 2.5 | Limits impurity to avoid compromising corrosion resistance |
| Carbon (C) | ≤ 0.01 | Minimizes carbide precipitation (prevents intergranular corrosion) |
| Silicon (Si) | ≤ 0.08 | Reduces oxide formation and improves weldability |
| Manganese (Mn) | ≤ 1.0 | Aids in deoxidation during manufacturing without reducing alloy
performance |
2. Mechanical & Corrosion Performance
Alloy C276 excels in both mechanical strength and corrosion
resistance, even at extreme temperatures.
2.1 Mechanical Properties (Room Temperature, Annealed Condition)
| Property | Value (Typical) | Test Standard |
|---|
| Tensile Strength | ≥ 795 MPa | ASTM B575 |
| Yield Strength (0.2% Offset) | ≥ 345 MPa | ASTM B575 |
| Elongation (in 50 mm) | ≥ 40% | ASTM B575 |
| Hardness (Brinell) | ≤ 210 HB | ASTM E10 |
2.2 High-Temperature Performance
- Continuous Operating Temperature: Up to 1093°C (2000°F) in
oxidizing environments.
- Short-Term Peak Temperature: Resists thermal cycling up to 1204°C
(2200°F) without significant strength loss.
2.3 Corrosion Resistance (Key Advantage)
- Resists Harsh Chemicals: Unaffected by sulfuric acid, hydrochloric
acid, acetic acid, and chlorine gas (common in chemical
processing).
- Chloride Environments: Excellent resistance to pitting, crevice
corrosion, and stress corrosion cracking (SCC) in chloride-rich
media (e.g., seawater, brines).
- Oxidation Resistance: Maintains stability in oxidizing atmospheres
(up to 1093°C) and reduces scaling compared to other nickel alloys.
3. Manufacturing & Quality Standards
Alloy C276 plates/sheets are produced in strict compliance with
global standards to ensure consistency and reliability. The most
widely recognized standards include:
| Standard Organization | Standard Number | Application Scope |
|---|
| ASTM International | ASTM B575 | Specification for nickel-molybdenum-chromium alloy plate, sheet,
and strip |
| ASME International | ASME SB575 | Boiler and pressure vessel-grade plate/sheet |
| DIN (Germany) | DIN 17750 | European standard for nickel alloy semi-finished products |
| JIS (Japan) | JIS H4553 | Japanese standard for nickel-chromium-molybdenum alloy plates |
| EN (Europe) | EN 10088-3 | European standard for corrosion-resistant stainless steels and
nickel alloys |
4. Available Specifications (Sizes for Laser Cutting)
We offer Alloy C276 plates/sheets in standard and customizable
sizes, optimized for laser cutting into round, square, or special
shapes (per customer drawings).
4.1 Standard Plate/Sheet Dimensions
| Type | Thickness Range | Width Range | Length Range |
|---|
| Plate | 3 mm – 200 mm | 1000 mm – 2500 mm | 2000 mm – 6000 mm |
| Sheet | 0.5 mm – 3 mm | 500 mm – 2000 mm | 1000 mm – 4000 mm |
4.2 Laser-Cut Shape Customization
- Round Shapes: Diameter range: 10 mm – 2000 mm; tolerance: ±0.1 mm
(for precision applications).
- Square Shapes: Side length range: 15 mm – 1800 mm; right angle
tolerance: ±0.05°.
- Special Sizes: Custom cutouts, notches, or irregular shapes (e.g.,
oval, hexagonal) supported via CAD drawings; minimum feature size:
5 mm.
5. Equivalent Grades (Same 牌号)
Alloy C276 is marketed under different brand names and standard
designations globally. The most common equivalent grades are:
| Region/Standard | Equivalent Grade | Brand Name |
|---|
| USA | UNS N10276 | Hastelloy® C276 |
| Europe | EN 2.4819 | Nicrofer® 5716 hMoW |
| Germany | DIN 2.4819 | - |
| Japan | JIS NW276 | - |
| China | GB/T 15007 N06276 | - |
Note: “Hastelloy®” is a registered trademark of Haynes
International, Inc. Equivalent grades share identical chemical and
mechanical properties but may differ in brand labeling.
6. Laser Cutting Service Advantages
Our laser cutting service for Alloy C276 plates/sheets ensures high
precision, minimal material waste, and superior edge
quality—critical for demanding applications.
Key Benefits of Laser Cutting:
- Precision: Tolerance as tight as ±0.05 mm, ideal for components
requiring exact fits (e.g., pressure vessel gaskets, chemical
reactor parts).
- No Thermal Distortion: Low-heat input avoids warping or altering
the alloy’s corrosion resistance (unlike plasma cutting).
- Smooth Edges: Laser-cut edges require no post-processing (e.g.,
grinding) for most applications, reducing production time.
- Flexibility: Supports small-batch prototypes and large-volume
production; quick turnaround for custom shapes (3–7 business days
for standard orders).
Cutting Process Parameters (for Alloy C276):
- Laser Type: Fiber laser (1000W–6000W, depending on thickness).
- Cutting Speed: 50–300 mm/min (varies by plate thickness: faster for
thin sheets, slower for thick plates).
- Edge Finish: Ra ≤ 1.6 μm (meets industrial surface roughness
requirements).
7. Application Fields
Alloy C276’s unique combination of corrosion and high-temperature
resistance makes it indispensable in the following industries:
- Chemical Processing: Reactors, heat exchangers, valves, and piping
for handling acids (sulfuric, hydrochloric) and toxic chemicals.
- Oil & Gas: Downhole components, offshore platforms, and subsea
pipelines (resists seawater and sour gas corrosion).
- Pharmaceuticals: Sanitary equipment (tanks, mixers) that requires
corrosion resistance and compliance with FDA standards.
- Wastewater Treatment: Equipment for treating chloride-rich or
acidic wastewater (e.g., clarifiers, pumps).
- Aerospace & Defense: Engine components and exhaust systems
(withstands high temperatures and oxidative stress).
- Power Generation: Boiler tubes and turbine parts for fossil fuel or
nuclear power plants (resists high-pressure steam corrosion).
8. Packaging & Shipping
To ensure Alloy C276 plates/sheets and laser-cut parts arrive in
pristine condition, we adhere to strict packaging and shipping
protocols:
8.1 Packaging
- Standard Plates/Sheets: Wrapped in moisture-proof kraft paper + PE
film, then placed on wooden pallets (fumigated to meet ISPM 15
standards for international shipping).
- Laser-Cut Parts: Separated by foam or cardboard inserts to prevent
scratches; packed in corrugated boxes (for small parts) or wooden
crates (for large/heavy parts).
- Labeling: Each package is labeled with material grade (Alloy
C276/UNS N10276), thickness, size, quantity, heat number, and batch
certificate (MTC).
8.2 Shipping
- Domestic Shipping: Via truck (for bulk orders) or courier (for
small batches); delivery time: 2–5 business days.
- International Shipping: Via sea freight (cost-effective for large
volumes) or air freight (fast delivery for urgent orders);
supported ports: Shanghai, Ningbo, Shenzhen (China) or Rotterdam
(Europe), Houston (USA); delivery time: 7–30 business days (varies
by destination).
- Documentation: Includes Commercial Invoice, Packing List, Material
Test Certificate (MTC, per ASTM B575), and Fumigation Certificate
(if applicable).
Monel 400 Alloy Sheet Plate UNS N04400 Nickel Alloy ASTM B127
