ASTM A1097 Welded Steel Tube Steel Casing Pipe Electric Fusion (Arc) Carbon Welded Steel Tube
Introduction
ASTM A1097 is a specification that covers electric fusion (arc) welded steel tubes used for steel casing pipe applications. This standard provides guidelines for the material, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades.
Material and Specification
The ASTM A1097 specification outlines the requirements for electric fusion (arc) welded steel tubes used for steel casing pipe applications. These tubes are manufactured using carbon steel and are designed to withstand high-pressure environments. The standard specifies the following material and specifications:
- Material: Carbon steel
- Manufacturing Method: Electric fusion (arc) welding
- Size Range: The tubes can be produced in various sizes, ranging from 6 inches to 120 inches in diameter.
Key Features
The key features of ASTM A1097 welded steel tubes include:
- Durability: These tubes are designed to withstand high-pressure environments, making them suitable for steel casing pipe applications.
- Welding Process: The electric fusion (arc) welding method ensures a strong and reliable bond between the steel plates, resulting in a seamless and robust tube.
- Versatility: The tubes can be produced in various sizes, allowing for flexibility in different applications.
- Corrosion Resistance: Carbon steel tubes are known for their resistance to corrosion, ensuring long-lasting performance in various environments.
Chemical Composition
| Element | Composition Range (%) |
| Carbon (C) | 0.20 max |
| Manganese (Mn) | 0.90 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties
| Property | Minimum Value |
| Tensile Strength | 60,000 psi (415 MPa) |
| Yield Strength | 35,000 psi (240 MPa) |
| Elongation in 2" | 30% min |
| Hardness | 80 HRB max |
Steel Grade
ASTM A1097 does not specify a particular steel grade. However, the material used for manufacturing these tubes is carbon steel, which is commonly available and widely used in various industries.
Application
ASTM A1097 welded steel tubes find application in steel casing pipe systems. These tubes are used to protect and support oil and gas wells, water wells, and other underground structures. They provide structural integrity and prevent the collapse of the wellbore.
Possible Alternative Grades
While ASTM A1097 does not specify alternative grades, there are other standards and specifications that cover similar types of welded steel tubes. Some possible alternative grades include ASTM A53, ASTM A500, and ASTM A252. These standards provide guidelines for different types of welded steel tubes used in various applications.
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