Latest Updated Price List for API 5L/ASTM A106 Gr.B Carbon Steel Seamless Pipe

Latest Updated Price List for API 5L/ASTM A106 Gr.B Carbon Steel Seamless Pipe


Note: Those Price are for bare pipe, based on EXW Price, not including shippment charge, Negotiate with us if large quantity. The most important is those price are valid in one week. If you have any question, plz don't hesitate to contact us: lily@adtooo.com 




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Seamless Steel Pipe: Annealing and Non-Annealing

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The main difference between   seamless steel pipe   annealing and non-annealing lies in their organizational structure, hardness, machinability, and corrosion resistance. Structural organization and performance transformation: After the seamless steel pipe undergoes annealing treatment, its organizational structure will change. For example, annealing can reduce the hardness of the steel pipe, increase plasticity, enhance machinability, and corrosion resistance. While the steel pipe that has not been annealed may have higher hardness and strength, but it is difficult to process and handle. Annealing types: The annealing of seamless steel pipe includes full annealing, spheroidizing annealing, stress-relief annealing, etc. Full annealing aims to reduce the hardness of seamless steel pipe and eliminate the non-uniform organization and internal stress in the steel. For spheroidizing annealing, the seamless steel pipe needs to be heated to 750 degrees, held for a period of time and ...
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Understanding the Differences Between High-Frequency Welded Pipe and Ordinary Welded Pipe

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In the realm of industrial manufacturing and piping solutions, choosing the right type of pipe is crucial for ensuring efficiency and durability. Two common types of welded pipes are   high-frequency welded pipes   and   ordinary welded pipes . While both serve the same primary applications, they differ significantly in their welding processes, strength, cost, and application fields. This article delves into the key differences between these two types of pipes, with a special focus on ERW steel pipes. Welding Process The most prominent difference between high-frequency welded pipes and ordinary welded pipes lies in their welding techniques.  High-Frequency Welded Pipes: The welding process for high-frequency welded pipes utilizes high-frequency induction heating. This involves the application of high-frequency electric currents that generate heat through skin and proximity effects. The edges of the pipe billets are heated and melted before being fused together under ...
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The Difference Between Hot-Dip Galvanizing and Electro-Galvanizing

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Galvanizing   is a process of zinc coating, with hot-dip galvanizing involving melting zinc and electro-galvanizing using an electrolytic method. While their manufacturing processes differ significantly, the final products may appear similar. So, how can we distinguish between hot-dip galvanizing and electro-galvanizing? Let's delve into it. Firstly, Distinction in Processes: Hot-dip galvanizing involves multiple processing steps, including oil removal, acid pickling, immersion in a flux bath, drying, and finally immersion in a molten zinc bath for a specific duration. On the other hand, electro-galvanizing, also known as zinc electroplating, utilizes an electrolytic process. After oil removal and acid pickling, the workpiece is immersed in a solution containing zinc salts. By connecting to the electrolytic equipment, zinc deposits onto the workpiece via directed movement of current between positive and negative poles. Secondly, Differentiation in Appearance: Hot-dip galvanized coa...
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