1. Question: Are your ERW pipes suitable for high-pressure gas transmission lines?
Answer: Yes, absolutely. ERW pipes manufactured to API 5L PSL2 (Product Specification Level 2) standards are specifically designed for high-pressure gas and oil transmission. PSL2 has more stringent chemical composition limits, mandatory impact testing (CVN), and stricter non-destructive testing requirements compared to PSL1. Our mills are qualified to produce PSL2 ERW line pipe for safe and reliable service in high-pressure environments.
2. Question: Can these pipes be used for piling and foundation applications?
Answer: Certainly. ERW pipes are an excellent choice for piling and foundation work. Their high strength-to-weight ratio and uniform shape make them ideal for driven piles or caissons. For piling, we often supply pipes in heavier wall thicknesses and higher strength grades (like ASTM A252 Grade 3) to withstand the high driving stresses and permanent load-bearing requirements of deep foundations.
3. Question: Are these pipes suitable for mechanical applications, like rollers, cylinders, or shafting?
Answer: Yes, for mechanical applications, we recommend our ERW pipes manufactured to ASTM A513 (Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing). This standard is specifically designed for mechanical uses. It offers excellent concentricity, close dimensional tolerances, and a smooth surface finish, making them suitable for machining into parts like hydraulic cylinders, conveyor rollers, and spacers.
4. Question: Do you have pipes specifically for fire protection sprinkler systems?
Answer: Yes, we supply ERW pipes that meet the requirements of fire protection standards. We can provide pipes certified to UL (Underwriters Laboratories) 852 and FM (Factory Mutual) 1630 standards. These pipes are typically hot-dip galvanized or have a red primer coating and are rigorously tested to ensure they can withstand the pressure demands of automatic sprinkler systems.
5. Question: Are your ERW pipes suitable for structural applications like building frames and bridges?
Answer: Yes, they are widely used in structural applications. We supply ERW Hollow Structural Sections (HSS) to standards like ASTM A500 (in the US) or EN 10219 (in Europe). These pipes are available in round, square, and rectangular shapes and are used for columns, trusses, and frameworks where high strength and aesthetic appearance are required.
