Q235 Electric Welded Steel Pipe

Ensuring the quality and traceability of raw materials for Q235 Electric Welded Steel Pipes during manufacturing involves several critical steps. The steel used must meet the chemical composition and mechanical property requirements as specified in relevant standards, such as those outlined in the product description from the provided source . The production process begins with the selection of high-quality carbon structural steel coils as the base material. These coils are then formed into tubes and welded using a high-frequency ERW process, which is known for its efficiency and consistent weld quality.

To guarantee the soundness of the raw material, ultrasonic tests are conducted on the steel plates before welding, and X-ray inspections are performed during and after the welding process to detect any internal defects. The welding procedure is qualified in accordance with the American Welding Society Standard Qualification Procedure or ASME Section IX of the Boiler and Pressure Vessel Code, ensuring the welds are of high quality and free from defects.

Furthermore, each length of pipe undergoes hydrostatic pressure testing to ensure it can withstand the pressures expected in service. Tensile tests are also performed on weld-test specimens to verify that the weld's strength meets the required standards. These comprehensive inspections and tests help ensure that Q235 Electric Welded Steel Pipes meet the high standards necessary for structural integrity and reliability in service.

FAQ:
Q1. How can I get a quotation from you?
A1: You can leave us message, and we will reply every message in time. Or we may talk on line by Trade manager. And you can also find our contact information on contact page.
Q2. Can I get samples before order?
A2: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q3. What is your delivery time?
A3: The time of delivery is usually around 15-20 days. We can send out in 2 days, if it has stock.

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