Detailed Walkthrough on Fabricated Valves Particularly A105N Steel Valves
The Informed Guide to Forged Steel Valve A105N
Dive into the world of industrial valves with our comprehensive overview of ASTM A105N, a premium choice for high-performance applications.
What's ASTM A105N All About?
ASTM A105N is a special normalization-treated version of ASTM A105, a carbon steel forging suitable for piping systems. Its widespread usage in manufacturing industrial valves, flanges, and fittings, is due to its optimal blend of strength, toughness, and weldability.
Material Performance
- Mechanical Properties: ASTM A105N boasts impressive stats, with yield strengths starting at 36,000 psi, tensile strength of 70,000–95,000 psi, and an elongation of at least 22%.
- Chemical Composition: Typical elemental makeup includes carbon, manganese, silicon, sulfur, phosphorus, chromium, molybdenum, nickel, and copper, among others.
Material Condition and Structure
- Condition: Normalized (indicated by the "N" suffix)
- Structure: Fine grain, typically grade 5 or smaller
- Surface Condition: As-rolled
- Reduction Ratio: Minimum 4:1
Testing and Quality Assurance
- Ultrasonic Examination: Available per ASTM A388/API 6A, upon request for critical applications
Applications in Industrial Valves
- Typical Use Cases: ASTM A105N is ideal for valve bodies, particularly in ball valves, gate valves, and globe valves for oil, gas, water, and petrochemical applications.
- Pressure Classes: Suitable for a variety of pressure classes, commonly found in 150LB, 300LB, and higher service ratings, depending on design specifications.
- Operating Modes: Used in both manual and actuated valve assemblies
Advantages
- Weldability: Superb welding compatibility with other carbon steel piping materials
- Strength and Toughness: Adequate for most industrial valve applications, primarily at ambient and moderate temperatures.
- Cost-Effectiveness: Lower cost compared to alloy or stainless steels, making it suited for general industrial applications.
Limitations
- Temperature Range: Best suited for service temperatures ranging from about -29°C to 425°C. Lower temperatures may require lower-temperature grades or alloy steels.
- Corrosion Resistance: Not suitable for highly corrosive environments. Stainless steels or duplex grades are recommended in such cases.
Key Takeaways
ASTM A105N is an excellent choice for dependable, low-cost performance in industrial valves, providing proper temperature conditions and non-corrosive or mildly corrosive environments.
In the manufacturing industry, ASTM A105N forged steel valves are utilizes due to their cost-effectiveness and impressive mechanical properties, making them suitable for various applications in the oil, gas, water, and petrochemical industries. The financing aspect comes into play as ASTM A105N is comparatively lower in cost compared to alloy or stainless steels, making it a preferred choice for general industrial purposes.
