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ASTM A672 Pipes & Tubes

ASTM A672 Pipes & Tubes

Steel pipes constructed with electric fusion welding and intended for high-pressure duty at standard temperatures are known as ASTM A672 Pipes and Tubes. In industries like power plants, refineries, and chemical plants, where dependable performance and resilience to high-pressure conditions are vital, these pipes are commonly employed. We will give an overview of the main characteristics and uses of ASTM A672 pipes and tubes in this introduction.
Electric fusion welding is used to create ASTM A672 pipes and tubes, ensuring a solid and even bond between the steel plates. The use of electric fusion welding reduces the possibility of leaks or failures in high-pressure applications by producing pipes and tubes with exceptional weld integrity. These pipes have improved mechanical qualities and robustness thanks to the use of high-strength carbon and alloy steel plates.
In continuous use, ASTM A672 pipes and tubes can tolerate temperatures of up to 700°F (371°C), which is a moderate temperature range. They are appropriate for use in power plants, refineries, and chemical plants where there are high temperatures because of their temperature tolerance. These pipes and tubes can endure the high-pressure situations seen in numerous sectors thanks to their high-strength steel construction.
Strict quality guidelines are followed by ASTM A672 Pipes and Tubes to guarantee their dependability and performance. They meet the specifications for electric-fusion-welded steel pipe for high-pressure duty at mild temperatures as set forth in ASTM A672/A672M standard. This standard guarantees that the pipes and tubes meet the dimensional, mechanical, and chemical requirements for the uses for which they are designed.
High-strength carbon and alloy steel is the substance used in ASTM A672 pipes and tubes, and it has various benefits. The pipes and tubes can sustain high pressure thanks to the improved mechanical qualities of these steel plates, which include high tensile and yield strengths. The particular alloying components help the pipes and tubes’ overall strength, toughness, and ability to resist corrosion.
To assure its quality and conformance to standards, ASTM A672 pipes and tubes are put through a battery of tests and inspections. To find any surface or interior flaws, these tests include visual examination, dimensional inspection, mechanical testing, and non-destructive testing. Because of their emphasis on quality and respect to regulations, ASTM A672 pipes and tubes are guaranteed to fulfill the prerequisites for high-pressure service.

ASTM A672 Pipes & Tubes Specifications

DimensionsOuter Diameter (OD): 16 inches to 100 inches
 Wall Thickness: Varies depending on size and application
Material CompositionCarbon Steel:
 – Grade A: C 0.25% max.
 – Grade B, C, and D: C 0.30% max.
Mechanical PropertiesTensile Strength: Varies depending on the grade. Typical range: 415 MPa (60,000 psi) to 690 MPa (100,000 psi)
 Yield Strength: Varies depending on the grade. Typical range: 205 MPa (30,000 psi) to 450 MPa (65,000 psi)
 Elongation: Minimum of 30% for longitudinal strip tests
Heat TreatmentPipes and tubes may be furnished with or without heat treatment.
Welding ProcessElectric fusion welding is used to join the plates and form the pipes and tubes.
ClassesClasses 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, and 73 are available.
Hydrostatic TestEach pipe and tube undergoes a hydrostatic test to ensure it can withstand the specified pressure without leakage.
Surface ConditionPipes and tubes should have a smooth surface finish, free from scale, rust, or imperfections.
StraightnessPipes and tubes should be reasonably straight, with slight deviations permissible as long as they don’t affect suitability.

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