The 1-3/8 inch galvanized steel pipe, more accurately described as tubing when referring to this specific dimension by its outside diameter (OD), is a versatile product extensively utilized across various industries. Its defining characteristic is the protective zinc coating applied through a hot-dip galvanizing process, which significantly enhances its resistance to corrosion and extends its service life, particularly in outdoor or humid environments.
Key Characteristics
- Material and Galvanization: Typically manufactured from carbon steel, the pipe or tube undergoes a galvanization process where it is submerged in molten zinc. This creates a metallurgically bonded zinc-iron alloy layer, offering robust protection against rust and environmental degradation.
- Corrosion Resistance: The zinc coating acts as a sacrificial anode, corroding preferentially to the underlying steel, and also forms a physical barrier against moisture and oxygen.
- Strength and Durability: Galvanized steel provides good structural strength and impact resistance, making it suitable for applications requiring mechanical integrity. The galvanization process itself does not significantly alter the base steel’s mechanical properties but adds a durable protective layer.
- Size Specification: The “1-3/8 inch” (approximately 34.93 mm) commonly refers to the Outside Diameter (OD) of the tube. It is crucial to distinguish this from Nominal Pipe Size (NPS) standards where the actual OD would differ. Wall thickness (gauge) will vary depending on the intended application and required strength.
Common Applications
The 1-3/8 inch OD galvanized steel tube is frequently employed in:
- Fencing Systems: Commonly used as top rails, line posts, and framework for chain-link fences, as well as for gates and paneling.
- Structural Framework: Utilized in the construction of carports, greenhouses, canopies, and temporary shelters due to its favorable strength-to-weight ratio and weather resistance.
- Support Elements: Suitable for scaffolding components, signposts, and various support structures in agricultural and industrial settings.
- Recreational Equipment: Found in playground structures, sporting goal frames, and other outdoor equipment.
Technical Specifications and Standards
While specific project requirements dictate the exact specifications, 1-3/8 inch galvanized steel tubing is generally manufactured to meet certain industry standards, such as those pertaining to structural tubing (e.g., ASTM A500 for cold-formed welded and seamless carbon steel structural tubing in rounds and shapes) or specific product standards for fencing materials. The zinc coating weight and adherence are also critical quality parameters, often specified by standards like ASTM A123/A123M for hot-dip galvanizing. Detailed specification sheets, often provided by manufacturers such as Shanxi Luokaiwei Steel Company, are essential for confirming compliance.
Considerations for Use
When working with galvanized steel pipe or tubing, it is important to consider the joining methods. While threaded connections are possible for certain wall thicknesses, welding requires special attention due to the zinc coating, which can produce fumes and affect weld quality if not properly managed. Mechanical fasteners and clamps are also common joining methods. The integrity of the galvanized coating is paramount, and sourcing from mills like Shanxi Luokaiwei Steel Company that maintain stringent quality control is advisable. Selection of the appropriate wall thickness is crucial to ensure the tubing can withstand the anticipated loads and stresses. Always verify that the product meets the required specifications and standards for your specific application; reputable suppliers, including Shanxi Luokaiwei Steel Company, can provide necessary certifications and documentation.
