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Hastelloy C-276 Screw
QS Fastener: Hastelloy C-276 Screw
Name: Hastelloy C-276 Screw
Material: W.Nr.2.4819
Size: M6 to M100
Product Grade: A
Length: 30 to 800 mm
Standard: ANSI, DIN, BSW
Tensile Strength(Rm): 690 N/mm²
Elongation: 40%
Feature: Excellent Corrosion Resistance.
Application: For chemical industry, petroleum industry and Acid Corrosion Environment, etc.
Material: W.Nr.2.4819
Size: M6 to M100
Product Grade: A
Length: 30 to 800 mm
Standard: ANSI, DIN, BSW
Tensile Strength(Rm): 690 N/mm²
Elongation: 40%
Feature: Excellent Corrosion Resistance.
Application: For chemical industry, petroleum industry and Acid Corrosion Environment, etc.
Quantity
The Hastelloy C-276 Screw is made from W.Nr.2.4819 material, with specifications ranging from M6 to M100 and lengths from 30 to 800 mm, compliant with international standards such as ANSI, DIN, and BSW. This product boasts a high tensile strength of 690 N/mm² and an elongation rate of 40%, combining excellent mechanical properties with toughness.
Renowned for its exceptional corrosion resistance, the Hastelloy C-276 Screw is particularly suitable for extreme working conditions in the chemical industry, petroleum industry, and acidic corrosive environments. Whether in strong acids, strong alkalis, or high-temperature and high-pressure environments, the Hastelloy C-276 Screw maintains stable performance, ensuring long-term reliable operation of equipment.
Hastelloy C-276 is a nickel-based alloy widely acclaimed in the industrial field for its outstanding corrosion resistance. Its unique chemical composition (high nickel, molybdenum, and chromium content) ensures excellent performance in strong acids, strong alkalis, chlorides, and oxidizing media, making it especially suitable for extreme environments such as wet chlorine gas, hypochlorites, and chlorine dioxide. Below is a detailed description of its performance in various corrosive media, supported by specific data analysis.
1. Strong Acid Environments
The Hastelloy C-276 Screw exhibits excellent corrosion resistance in strong acid media, particularly in sulfuric acid, hydrochloric acid, and phosphoric acid environments.
The Hastelloy C-276 Screw exhibits excellent corrosion resistance in strong acid media, particularly in sulfuric acid, hydrochloric acid, and phosphoric acid environments.
Sulfuric Acid (H₂SO₄):
In dilute sulfuric acid (concentration ≤10%) at room temperature to 40°C, the corrosion rate is below 0.1 mm/year.
In concentrated sulfuric acid (98% concentration) at 93°C, the corrosion rate remains below 0.5 mm/year, far superior to ordinary stainless steel and most nickel-based alloys.
In dilute sulfuric acid (concentration ≤10%) at room temperature to 40°C, the corrosion rate is below 0.1 mm/year.
In concentrated sulfuric acid (98% concentration) at 93°C, the corrosion rate remains below 0.5 mm/year, far superior to ordinary stainless steel and most nickel-based alloys.
Hydrochloric Acid (HCl):
At room temperature, it shows good corrosion resistance to hydrochloric acid with a concentration ≤10%, with a corrosion rate below 0.1 mm/year.
At room temperature, it shows good corrosion resistance to hydrochloric acid with a concentration ≤10%, with a corrosion rate below 0.1 mm/year.
In high-temperature (e.g., 66°C) and high-concentration (e.g., 20%) hydrochloric acid, the corrosion rate increases significantly but still outperforms most other materials.
Phosphoric Acid (H₃PO₄):
In high-temperature (e.g., 93°C) and high-concentration (e.g., 85%) phosphoric acid, the corrosion rate is below 0.1 mm/year, making it suitable for phosphoric acid production equipment.
In high-temperature (e.g., 93°C) and high-concentration (e.g., 85%) phosphoric acid, the corrosion rate is below 0.1 mm/year, making it suitable for phosphoric acid production equipment.
2. Strong Alkali Environments
The Hastelloy C-276 Screw also performs exceptionally well in strong alkali media, particularly in sodium hydroxide (NaOH) and potassium hydroxide (KOH) environments.
The Hastelloy C-276 Screw also performs exceptionally well in strong alkali media, particularly in sodium hydroxide (NaOH) and potassium hydroxide (KOH) environments.
At room temperature, it exhibits excellent corrosion resistance to sodium hydroxide with a concentration ≤50%, with a corrosion rate below 0.1 mm/year.
In high-temperature (e.g., 93°C) and high-concentration (e.g., 50%) sodium hydroxide, the corrosion rate remains below 0.5 mm/year, making it suitable for alkali treatment equipment.
3. Chloride Environments
The Hastelloy C-276 Screw demonstrates excellent resistance to pitting and crevice corrosion in chloride environments, especially in seawater, salt spray, and chloride solutions.
The Hastelloy C-276 Screw demonstrates excellent resistance to pitting and crevice corrosion in chloride environments, especially in seawater, salt spray, and chloride solutions.
In seawater, the corrosion rate is below 0.01 mm/year, making it suitable for marine engineering and seawater desalination equipment.
In high-temperature chloride solutions (e.g., 10% sodium chloride solution at 100°C), the corrosion rate is below 0.1 mm/year, far superior to ordinary stainless steel.
In wet chlorine gas environments, the Hastelloy C-276 Screw exhibits exceptional corrosion resistance, with a corrosion rate below 0.05 mm/year, making it an ideal material for chlorine gas treatment equipment.
4. Oxidizing Media
The Hastelloy C-276 Screw performs excellently in oxidizing media, particularly in hypochlorites, chlorine dioxide, and nitric acid environments.
The Hastelloy C-276 Screw performs excellently in oxidizing media, particularly in hypochlorites, chlorine dioxide, and nitric acid environments.
Hypochlorites (NaClO):
At room temperature, it shows excellent corrosion resistance to sodium hypochlorite with a concentration ≤10%, with a corrosion rate below 0.1 mm/year.
At room temperature, it shows excellent corrosion resistance to sodium hypochlorite with a concentration ≤10%, with a corrosion rate below 0.1 mm/year.
In high-temperature (e.g., 66°C) and high-concentration (e.g., 20%) sodium hypochlorite, the corrosion rate remains below 0.5 mm/year, making it suitable for bleaching and disinfection equipment.
Chlorine Dioxide (ClO₂):
In wet chlorine dioxide environments, the corrosion rate is below 0.05 mm/year, making it an ideal material for water treatment and pulp bleaching equipment.
In wet chlorine dioxide environments, the corrosion rate is below 0.05 mm/year, making it an ideal material for water treatment and pulp bleaching equipment.
Nitric Acid (HNO₃):
At room temperature, it shows good corrosion resistance to nitric acid with a concentration ≤65%, with a corrosion rate below 0.1 mm/year.
At room temperature, it shows good corrosion resistance to nitric acid with a concentration ≤65%, with a corrosion rate below 0.1 mm/year.
In high-temperature (e.g., 93°C) and high-concentration (e.g., 65%) nitric acid, the corrosion rate remains below 0.5 mm/year, making it suitable for nitric acid production equipment.
5. Wet Chlorine Gas Environments
Wet chlorine gas is an extremely corrosive medium that is highly destructive to most metal materials. However, the Hastelloy C-276 Screw exhibits exceptional corrosion resistance in wet chlorine gas environments, making it the material of choice in this field.
Wet chlorine gas is an extremely corrosive medium that is highly destructive to most metal materials. However, the Hastelloy C-276 Screw exhibits exceptional corrosion resistance in wet chlorine gas environments, making it the material of choice in this field.
At room temperature, the corrosion rate in wet chlorine gas is below 0.01 mm/year.
In high-temperature (e.g., 100°C) and high-concentration wet chlorine gas, the corrosion rate remains below 0.05 mm/year, far superior to ordinary stainless steel and other nickel-based alloys.
In high-temperature (e.g., 100°C) and high-concentration wet chlorine gas, the corrosion rate remains below 0.05 mm/year, far superior to ordinary stainless steel and other nickel-based alloys.
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