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DIN W.Nr.2.4617 Thread Rod
QS Fastener: DIN W.Nr.2.4617 Thread Rod
Name: DIN W.Nr.2.4617 Thread Rod
Standard: DIN, NF, ANSI
Material: Hatelloy B-2
Product Grade: A
Size: M12
Length: 200 mm
Tensile Strength(Rm): 690 N/mm²
Elongation: 40%
Application: Widely used in Chemical, Petrochemical, Energy Manufacturing and Pollution Control Fields
Feature: Excellent Corrosion Resistance
Standard: DIN, NF, ANSI
Material: Hatelloy B-2
Product Grade: A
Size: M12
Length: 200 mm
Tensile Strength(Rm): 690 N/mm²
Elongation: 40%
Application: Widely used in Chemical, Petrochemical, Energy Manufacturing and Pollution Control Fields
Feature: Excellent Corrosion Resistance
Quantity
The DIN W.Nr.2.4617 Thread Rod is made from Hastelloy B-2 material, compliant with DIN, NF, and ANSI standards. With specifications of M12 × 200 mm, it boasts a tensile strength of 690 N/mm² and an elongation rate of 40%. It exhibits exceptional corrosion resistance, making it particularly suitable for demanding environments such as chemical processing, petrochemicals, energy manufacturing, and pollution control. Its high strength, toughness, and international certifications ensure reliability and longevity under extreme conditions, making it an ideal choice for high-performance fasteners.
The corrosion resistance of DIN W.Nr.2.4617 Thread Rod is validated through rigorous corrosion and intergranular corrosion tests, ensuring its reliability in harsh environments.
1. Corrosion Test
Test Conditions:
Corrosive Medium: 20% hydrochloric acid (HCl) or 50% sulfuric acid (H₂SO₄) solution.
Test Temperature: Room temperature (25°C).
Immersion Time: 24 hours.
Measurement Index: Corrosion rate (typically required to be ≤0.1 mm/year).
Test Conditions:
Corrosive Medium: 20% hydrochloric acid (HCl) or 50% sulfuric acid (H₂SO₄) solution.
Test Temperature: Room temperature (25°C).
Immersion Time: 24 hours.
Measurement Index: Corrosion rate (typically required to be ≤0.1 mm/year).
Test Procedure:
1. Cut the DIN W.Nr.2.4617 Thread Rod sample to standard dimensions and polish the surface to remove oxide layers and impurities.
1. Cut the DIN W.Nr.2.4617 Thread Rod sample to standard dimensions and polish the surface to remove oxide layers and impurities.
2. Fully immerse the sample in 20% HCl or 50% H₂SO₄ solution, ensuring complete coverage of the sample surface.
3. Maintain constant solution concentration and temperature during the 24-hour immersion period, avoiding external interference.
4. After immersion, remove the DIN W.Nr.2.4617 Thread Rod sample, rinse with deionized water, and dry.
4. After immersion, remove the DIN W.Nr.2.4617 Thread Rod sample, rinse with deionized water, and dry.
5. Measure the mass loss using precision instruments (e.g., electronic balance) and calculate the corrosion rate based on the sample surface area and immersion time.
Test Results:
- In 20% HCl solution, the corrosion rate is 0.08 mm/year.
- In 50% H₂SO₄ solution, the corrosion rate is 0.06 mm/year.
- The corrosion rates in both media are ≤0.1 mm/year, meeting industry standards.
- In 20% HCl solution, the corrosion rate is 0.08 mm/year.
- In 50% H₂SO₄ solution, the corrosion rate is 0.06 mm/year.
- The corrosion rates in both media are ≤0.1 mm/year, meeting industry standards.
Data Analysis:
The DIN W.Nr.2.4617 Thread Rod exhibits an extremely low corrosion rate in strong acid media, attributed to its high nickel (Ni) and molybdenum (Mo) content, which forms a stable passive film that effectively resists acid corrosion. This characteristic makes it highly suitable for applications in chemical and petrochemical industries with strong corrosive environments.
The DIN W.Nr.2.4617 Thread Rod exhibits an extremely low corrosion rate in strong acid media, attributed to its high nickel (Ni) and molybdenum (Mo) content, which forms a stable passive film that effectively resists acid corrosion. This characteristic makes it highly suitable for applications in chemical and petrochemical industries with strong corrosive environments.
2. Intergranular Corrosion Test
Test Standard:
Conducted according to ASTM G28 standards to evaluate the material’s susceptibility to intergranular corrosion in high-temperature or corrosive media.
Test Standard:
Conducted according to ASTM G28 standards to evaluate the material’s susceptibility to intergranular corrosion in high-temperature or corrosive media.
Test Conditions:
- Corrosive Medium: Ferric sulfate-sulfuric acid solution (50% H₂SO₄ + 25 g/L Fe₂(SO₄)₃).
- Test Temperature: Boiling state (approximately 120°C).
- Immersion Time: 24 hours.
- Measurement Index: Intergranular corrosion depth and microstructural changes.
- Corrosive Medium: Ferric sulfate-sulfuric acid solution (50% H₂SO₄ + 25 g/L Fe₂(SO₄)₃).
- Test Temperature: Boiling state (approximately 120°C).
- Immersion Time: 24 hours.
- Measurement Index: Intergranular corrosion depth and microstructural changes.
Test Procedure:
1. Cut the DIN W.Nr.2.4617 Thread Rod sample to standard dimensions and polish the surface.
2. Fully immerse the sample in the ferric sulfate-sulfuric acid solution, heat to boiling, and maintain for 24 hours.
3. After immersion, remove the DIN W.Nr.2.4617 Thread Rod sample, rinse with deionized water, and dry.
4. Use a metallographic microscope to observe the sample surface and cross-section, assessing intergranular corrosion depth and grain boundary changes.
1. Cut the DIN W.Nr.2.4617 Thread Rod sample to standard dimensions and polish the surface.
2. Fully immerse the sample in the ferric sulfate-sulfuric acid solution, heat to boiling, and maintain for 24 hours.
3. After immersion, remove the DIN W.Nr.2.4617 Thread Rod sample, rinse with deionized water, and dry.
4. Use a metallographic microscope to observe the sample surface and cross-section, assessing intergranular corrosion depth and grain boundary changes.
Test Results:
- No significant intergranular corrosion cracks or pores are observed on the sample surface.
- Metallographic microscopy reveals clear grain boundaries with no signs of corrosion; the intergranular corrosion depth is 0 μm.
- The material’s microstructure is uniform, showing no tendency for intergranular corrosion.
- No significant intergranular corrosion cracks or pores are observed on the sample surface.
- Metallographic microscopy reveals clear grain boundaries with no signs of corrosion; the intergranular corrosion depth is 0 μm.
- The material’s microstructure is uniform, showing no tendency for intergranular corrosion.
Data Analysis:
The DIN W.Nr.2.4617 Thread Rod shows no intergranular corrosion in high-temperature, strong acid media, indicating that its chemical composition and heat treatment processes are optimized to prevent carbide precipitation at grain boundaries. This ensures structural integrity and reliability during long-term use, particularly in high-temperature, high-pressure, and highly corrosive conditions.
The DIN W.Nr.2.4617 Thread Rod shows no intergranular corrosion in high-temperature, strong acid media, indicating that its chemical composition and heat treatment processes are optimized to prevent carbide precipitation at grain boundaries. This ensures structural integrity and reliability during long-term use, particularly in high-temperature, high-pressure, and highly corrosive conditions.
3. Comprehensive Analysis and Applications
Through corrosion and intergranular corrosion tests, the DIN W.Nr.2.4617 Thread Rod demonstrates exceptional performance in highly corrosive environments:
Low Corrosion Rate: In 20% HCl and 50% H₂SO₄ solutions, the corrosion rate is ≤0.1 mm/year, indicating excellent acid corrosion resistance.
Through corrosion and intergranular corrosion tests, the DIN W.Nr.2.4617 Thread Rod demonstrates exceptional performance in highly corrosive environments:
Low Corrosion Rate: In 20% HCl and 50% H₂SO₄ solutions, the corrosion rate is ≤0.1 mm/year, indicating excellent acid corrosion resistance.
No Intergranular Corrosion Tendency: Tests conducted according to ASTM G28 standards show no intergranular corrosion, confirming stable microstructure and suitability for long-term service.
Application Fields: This material is ideal for chemical equipment, petrochemical pipelines, pollution control systems, and nuclear industries, effectively extending equipment lifespan and reducing maintenance costs.
The DIN W.Nr.2.4617 Thread Rod has proven its superior performance in harsh environments such as strong acids and high temperatures through rigorous corrosion and intergranular corrosion tests. Its low corrosion rate and absence of intergranular corrosion make it an ideal material for highly corrosive conditions, providing reliable solutions for applications in chemical processing, energy manufacturing, and pollution control.
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