Yesterday, Hengtong Petroleum Machinery has successfully completed a batch of high-quality 4140 high-strength alloy steel pipe series products to Iraq. Thank you Iraqi customers for your trust in us!

4140 Uniform Thickness Seamless tube products will be widely used in machinery manufacturing, energy equipment and precision molds, and fully support customers' efficient production needs.

4140 alloy steel pipe is a low-alloy structural steel with chromium (Cr), molybdenum (Mo) and manganese (Mn) as core elements. It is favored by the global high-end manufacturing industry for its high strength, excellent wear resistance and fatigue resistance. This batch of products strictly follows international standards such as ASTM A519 and DIN 1629. It is made by argon arc welding and precision cold drawing. The internal and external surface finish reaches Ra0.8μm, and the tolerance range is controlled within ±0.1mm, which can meet the strict requirements of aerospace, automotive industry and oil drilling equipment for material accuracy.