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A672 Pipe Smo 254
Introduction
A672 Pipe SMO 254 is a high-alloy austenitic stainless steel designed for use in aggressive environments such as seawater, acidic solutions, and chloride-containing environments. This article provides an overview of its material, specifications, key features, and various properties.
Material
A672 Pipe SMO 254 is a grade of stainless steel that contains significant amounts of chromium, nickel, molybdenum, and nitrogen. These elements contribute to its exceptional corrosion resistance and high strength.
Specification
The specifications for A672 Pipe SMO 254 are generally outlined in the ASTM A672/A672M standard. Below are the general specifications:
Standard: ASTM A672/A672M
Grade: SMO 254
Size Range: 1/2" to 36"
Wall Thickness: SCH 5S to SCH XXS
Key Features
High Corrosion Resistance: Exceptional resistance to corrosion in acidic and chloride-containing environments.
High Strength: Good mechanical properties at both ambient and elevated temperatures.
High Weldability: Excellent weldability and formability.
Low Magnetic Permeability: Often used in magnetic-sensitive applications due to its low magnetic permeability.
Chemical Composition
The chemical composition of A672 Pipe SMO 254 is as follows (in weight %):
| Element | C | Mn | Si | P | S | Cr | Ni | Mo | Cu | N |
| Percentage | ≤0.02 | ≤1.00 | ≤0.80 | ≤0.03 | ≤0.01 | 19.5-20.5 | 17.5-18.5 | 6.0-6.5 | ≤0.5 | 0.18-0.22 |
Mechanical Properties
The mechanical properties of A672 Pipe SMO 254 at room temperature are as follows:
| Property | Value |
| Tensile Strength | ≥650 MPa |
| Yield Strength | ≥300 MPa |
| Elongation | ≥35% |
| Hardness | ≤270 HV |
Physical Properties
The physical properties of A672 Pipe SMO 254 are as follows:
| Property | Value |
| Density | 8.0 g/cm³ |
| Melting Point | 1320-1390°C |
| Thermal Conductivity | 12 W/(m·K) |
| Electrical Resistivity | 80 µΩ·cm |
Process Performance
The process performance of A672 Pipe SMO 254 is as follows:
| Property | Value |
| Machinability | Good |
| Weldability | Excellent |
| Formability | Excellent |
| Heat Treatment | Annealing at 1090-1150°C, followed by rapid cooling |
Steel Grade
The steel grade for A672 Pipe SMO 254 is ASTM A312 TP254 SMO or equivalent.
Application
A672 Pipe SMO 254 is widely used in various industries due to its high corrosion resistance and mechanical properties. Some of the common applications include:
Oil and Gas Industry: Offshore and onshore installations
Chemical Processing: Equipment for handling corrosive chemicals
Desalination Plants: Seawater desalination equipment
Pulp and Paper Industry: Bleaching equipment
Possible Alternative Grades
While A672 Pipe SMO 254 offers exceptional properties, there are alternative grades available that can be considered for similar applications:
Austenitic Stainless Steels: 316L, 904L
Duplex Stainless Steels: SAF 2205, SAF 2507
Super Duplex Stainless Steels: Zeron 100, Ferralium 255
Conclusion
A672 Pipe SMO 254 is a high-performance stainless steel grade known for its excellent corrosion resistance, high strength, and weldability. It is widely used in aggressive environments across various industries. Understanding its material properties, specifications, and alternative grades can help in selecting the right material for specific applications.
The company insists on independent innovation, attracts a group of well-known experts in the Large Diameter 254 Smo Stainless Steel Pipe Price List industry, sets up a core R&D team, and devotes itself to designing high-quality products. We cultivate a fine and rigorous working style with strict requirements and meticulous attitude. Our company through the implementation of appropriate customer retention strategy, constantly strengthen customer relationship, continuous willingness, and ultimately establish customer loyalty, so as to achieve long-term stable customer repeat purchase.
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