We uphold the core values of 'creating value for customers, sharing value with employees, and dedicating value to society', and continue to devote ourselves to creating better Hydraulic Cylinder Pipe, Skived And Burnished Tube, Chrome Plated Steel Bar solutions. If you are looking for a supplier with good quality, fast delivery, excellent after-sale service, we will be your best choice. We will establish the enterprise culture of pioneering, innovation and continuous improvement. We warmly welcome mates from all walks of life to hunt mutual cooperation and develop a more good and splendid tomorrow. With continuous innovation and excellent service, we always think about the needs of our customers and build us into a respected company in the industry.
1. Introduction
HENGTONG PETROLIC MACHINERY manufactures 4140 Alloy Steel Tubes and transmission roller steel pipes more than 20 Years.The 4140 Alloy Steel Tubes is much thick hot rolled alloy steel tubes, which goes through boring and milling to make sure uniform thickness.
2. Product Details
Application: Used for drilling, downhole motor, mud motor
Size : ID from 70mm to 300mm
Length : Depends on customer requirement.
Material : 4140 / 42CrMo
Delivery Condition: hot rolled + boring and milling
ID and OD Tolerance : Depends on customer requirement.
Brand : Hengtong

3.Size List


4.Our services
1). Where to buy our products for one year warranty and life long maintenance.
2). 24-hour telephone service.
3). A large stock of components and parts, easily-worn parts.

We are a manufacturer with complete coverage of ASME 4140 High Temperature Alloy Seamless Steel Boiler Tube on the market and have received a excellent reputation for the quality of product. Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. Unity is the basic guiding ideology for the good development of an enterprise, and we always abide by it.
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