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Hastelloy Alloy C276/Inconel 276/2.4819 Bolts For High-Performance Corrosion Resistance In Harsh Environments

Categories Hastelloy Alloy
Brand Name: Senphus
Model Number: Hastelloy alloy C276/Inconel 276/Inconel 276/2.4819
Certification: ISO9001
Place of Origin: China
MOQ: TBD
Payment Terms: T/T, D/P
Supply Ability: 30 Tons per day
Delivery Time: 7 days
Packaging Details: Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Name: Hastelloy C-276 nut
Place of Orig: China
Type: Hastelloy
Density: 8.9 g/cm³
Melting range: 1325-1370 ℃
Tensile strength Rm: 690 N/mm²
Yield strengthRP 0.2: 283 N/mm²
Elongation A5: 40%
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Hastelloy Alloy C276/Inconel 276/2.4819 Bolts For High-Performance Corrosion Resistance In Harsh Environments

Hastelloy Alloy C276/Inconel 276/2.4819 Bolts for High-Performance Corrosion Resistance in Harsh Environments


Hastelloy C-276 (also known as Inconel 276 or UNS N10276 / 2.4819) bolts are high-performance fasteners designed for extreme environments. Made from a nickel-molybdenum-chromium alloy with added tungsten, they offer excellent corrosion resistance, especially against pitting, crevice corrosion, and stress corrosion cracking. These bolts are widely used in chemical processing, marine, aerospace, and power industries, where exposure to harsh chemicals, acids, and high temperatures is common. They maintain strength and integrity in oxidizing and reducing conditions. Hastelloy C-276 bolts are available in various sizes and specifications, including ASTM B574. Their superior mechanical properties and weldability make them ideal for critical applications requiring durability and longevity.


Trade code

GBISCCOMMERCIAL CODEUNSDIN EN/ DINW-Nr.BS EN/ BS
NS 3304
(NS 334)
(00Cr15Ni60Mo16W5Fe5)
H10276
(H 03304)
Inconel 276
Inconel C-276
N 10276 NiMo16Cr15W 2.4819 NA 45

Chemical Composition Wt.%%NiCrFeCMnSiMoVPSCoW
MinBal.14.54  15    3.0
MaxBal.16.570.011.00.08170.350.040.032.54.5

Physical ConstantsDensity(g/cm³)8.9
Melting Range(℃)1325-1370

Minimum mechanical properties of alloy at room temperatureTypical mechanical propertiesTensile strength Rm N/mm²Yield strength RP 0.2 N/mm²Elongation A5 %
Solution treatment69028340

Category/Typehex bolts
Head typeouter hexagonal
Thread tolerance6G
MaterialHastelloy C-276
Performance level8.8
Thread specificationM6~M100
Head side length10-120(mm)
Head thickness6.6-60(mm)
Total length30~800(mm)

Hastelloy C276 (also known as Inconel 276 or 2.4819) bolts are highly corrosion-resistant fasteners used in extreme environments. Here are their


key features:

1. Corrosion Resistance

  • Excellent resistance to strong oxidizers, reducing agents, and a wide range of chemicals.
  • Superior performance in environments containing chlorides, sulfuric acid, hydrochloric acid, and seawater.
  • Resistant to stress corrosion cracking, crevice corrosion, and pitting.

2. High-Temperature Performance

  • Can withstand high temperatures up to 1,000°C (1,832°F) while maintaining strength and corrosion resistance.
  • Excellent mechanical properties at both high and low temperatures.

3. Mechanical Strength

  • High tensile strength and durability make it suitable for demanding applications.
  • Typical yield strength: 283 MPa (41 ksi)
  • Tensile strength: 690 MPa (100 ksi)

4. Material Composition

  • Nickel (Ni): ~57%, Molybdenum (Mo): 15-17%, Chromium (Cr): 14.5-16.5%, Iron (Fe): 4-7%, and trace amounts of Cobalt (Co), Tungsten (W), and Carbon (C).

5. Standards & Specifications

  • Meets ASTM B574, ASME SB574, DIN 2.4819, and other international standards.
  • Available in hex bolts, stud bolts, socket head bolts, and custom fasteners.

Hastelloy C276 (also known as Inconel 276 or 2.4819) bolts are used in extreme environments due to their outstanding corrosion resistance and mechanical strength. Some key applications include:

1. Chemical Processing

  • Used in reactors, heat exchangers, piping, and fasteners in highly corrosive environments, such as those with hydrochloric acid, sulfuric acid, and chlorine-based solutions.

2. Marine and Offshore Industries

  • Ideal for seawater applications, including desalination plants, shipbuilding, and offshore oil rigs where saltwater corrosion is a concern.

3. Aerospace and Aviation

  • Employed in engine components, exhaust systems, and structural fasteners that must withstand high temperatures and aggressive chemicals.

4. Power Generation

  • Found in nuclear and thermal power plants for heat exchangers, turbines, and flue gas desulfurization (FGD) systems.

5. Pulp and Paper Industry

  • Used in digesters, bleach plants, and fasteners exposed to highly acidic and oxidizing environments.

6. Pharmaceutical and Food Processing

  • Suitable for clean processing environments due to its resistance to contamination and corrosion in sterilization systems.

7. Waste Treatment Facilities

  • Applied in incinerators, scrubbers, and chemical waste treatment plants where strong acids and chlorides are present.


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