从China供应商批发进口Aisi 4140 Steel Pipe — FOB条款

AISI 4140 steel pipe from Big Co., Ltd. is a seamless chromium molybdenum alloy tube conforming to ASTM A29/A519 standards, designed for high-stress industrial use. The pipe is produced from chromium molybdenum steel with a composition tailored for superior tensile strength and fatigue resistance, making it suitable for demanding applications like oil and gas drilling, automotive axles, and power generation components. Available in sizes from 1/2 inch to 24 inch NPS with standard wall thicknesses, it meets the mechanical property requirements of heavy-duty environments.

The material’s chromium and molybdenum content enhances hardenability and wear resistance, while its low alloy composition ensures good machinability and weldability. Typical industry standards for this grade include a tensile strength of 655 MPa minimum and yield strength of 415 MPa minimum in the annealed condition, with Brinell hardness around 197. The seamless construction eliminates weld seams, providing uniform strength and reliability in high-pressure systems.

This pipe is widely adopted in machinery spindles, hydraulic systems, and structural components where durability is critical. Buyers in manufacturing hubs source it for its consistent performance in elevated temperature service and resistance to atmospheric corrosion. Big Co., Ltd. offers custom lengths to match project specifications, with global export experience ensuring compliance with international standards for industrial supply chains.

Big Co., Ltd. is based in Tongzhou District, Beijing, China, with a registered address confirming its operational presence in a key industrial hub. The supplier operates at the harbor trust tier, indicating a verified trade profile for international buyers. While the response rate and average response hours are currently not available, the company’s focus on industrial-grade steel pipes aligns with its positioning as a specialist in high-strength alloy products.

The supplier’s product portfolio centers on chromium molybdenum alloy steel pipes, with a specific emphasis on AISI 4140 grades meeting ASTM standards. Big Co., Ltd. does not advertise additional certifications or historical trade data in its profile, but its adherence to international material specifications suggests a commitment to export-quality supply. Buyers are advised to confirm verification status and technical capabilities directly with the supplier.