The quality control of our Piston Rod Chrome Bar, Hydraulic Chrome Plated Bar, Welding Positioner includes the entire process of receiving logistics, warehousing, production process, packaging, delivery, and after-sales. We will always be your first choice. We actively cooperate with the requirements of customers, try our best to develop and produce new products, meet the needs of customers and provide customers with high-quality and low-cost products.
1. Introduction
4140 seamless cold drawn tube is a new high technology energy-saving product, application of high precision cold drawn precision steel tube to save steel, improve the processing efficiency and save energy High precision cold drawn pipe refers to the inner and outer diameter size accuracy (tolerances) strictly, both inside and outside surface roughness, roundness, straight degree good, fine uniform wall thickness The technology of high precision cold drawn pipe production by the main technical indicators have reached or part of a national standard GB8713 -- more than 88 international standard ISO4394 / I - 1980 (E).
2. Product Details
Application: Used for drilling, down hole motor stator tubes.
Size : ID from 70mm to 250mm
Length : Depends on customer requirement.
Material : 4140
Delivery Condition: Cold drawn / Q+T
ID and OD Tolerance : Depends on customer requirement.
Brand : Hengtong
3. Size List
72*90 | 75*95 | 76*98 | 86*105 | 86*110 | 95*120 |
95*127 | 106*136 | 127*161 | 127*165 | 134*172 | 139.7*177.8 |
140*172 | 147*185 | 158.75*209.55 | 159*197 | 165*203 | 172*210 |
172*228 | 200*245 | 235*288 | 203*120 | 172*103 | 197*120 |
165*106 |
4. Experience and Markets
Our factory has more than 20years working experiences on researching and selling. Products are well sailed all over the world, got many compliments from customers.

5. Our Services
Pre-Sale Services:
1. Providing professional technical support.
2. Send the product catalog and instruction manual.
3. If you have any question PLS contact us online or send us email, we promise we will give you a reply at the first time!
4. Personal call or visit are warmly welcome.
Sale of Services:
1. We promise honest and fair, it's our pleasure to serve you as your purchasing consultant.
2. We guarantee punctuality, quality and quantities strictly implement the terms of contract.
After-Sales Service:
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.
Facing the future, we will always carry forward the spirit of striving for first-class, stand out in the market competition, and create more high-quality Cold Drawn Seamless 4140 4130 Steel Tube. Our company always takes the product quality as the goal, from design, production, installation to after-sales maintenance and repair, so that customers are happy, satisfied and return. We now have strict excellent regulate procedures for each process.
Hot Tags: 4140 seamless cold drawn tube, China, manufacturers, suppliers, factory, price, High Pressure Gas Tube, S45C Cold Drawn Honed Tube, 16Mn Hydraulic Cylinder Tube, Pneumatic Cylinder Tubes, Hydraulic Cylinder Pipes, St52 Cold Drawn Pipe






































