ST52 seamless steel tube is an alloy steel tube. The material of ST52 in China is 16Mn (Q345B), which is a low alloy steel tube. It has the characteristics of high dimensional accuracy and high internal and external surface finish. There is no oxide film on the internal and external surfaces of the steel tube after heat treatment. In addition, ST52 precision steel tube has no cracks when expanded and flattened, no deformation when cold bent, and can withstand high pressure.
ST52 Seamless precision steel tube is mainly used for steel tubes for hydraulic systems, automobiles, ferrules, etc., as well as other fields with high requirements for steel tube accuracy, finish, and mechanical properties.
Products Data
ST52 Cold drawn steel pipes Chemical Composition :
| Grade | C | Si | Mn | P max | S max |
|---|---|---|---|---|---|
| St52 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 |
Mechanical Properties of ST52 Seamless Steel Pipe
| Grade | Thickness | Yield | Tensilmie | Elongation | Impact Energy(KV J) min | ||
| St 52 | mm | Min Mpa | Mpa | Min % | -20° | 0° | +20° |
| ≤ 16 | 355 | 490-630 | 22 | 40 | 47 | 55 | |
| 16> to ≤35 | 355 | 490-630 | 22 | 40 | 47 | 55 | |
| 35> to ≤50 | 345 | 490-630 | 22 | 40 | 47 | 55 | |
| 50> to ≤70 | 325 | 490-630 | 22 | 40 | 47 | 55 | |
| 70> to ≤100 | 315 | 470-610 | 21 | 40 | 47 | 55 | |
| 100> to ≤150 | 295 | 450-590 | 21 | 40 | 47 | 55 | |
Products display
ST52 Seamless Precision Pipe
Why Choose GNEE
GNEE is equipped with a full set of physical and chemical, mechanical properties testing, automatic testing instruments, hydraulic presses and various inspection and testing equipment, and has passed IS09001:2000 quality system certification IS014001 environmental management system certification, APL-5LPLS1, PLS2 certification and CE certification, especially we can meet the special needs of customers!
If you would like to know more about our company or our products, please feel free to contact us. sales@gneetube.com
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FAQ
Q: Do you have quality control system?
A: Yes, we have our own quality control laboratory.Third party testing servicesare also available.
Q: What services do you provide?
A: Customized service for each customer, please feel free to contact us!
Q.What is your lead time?
A. Regular stock is usually 10 days. Depends on the products.
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