Our company is gradually expanding the market and making more new friends with an humbly attitude and steady steps. Based on the principle of mutual benefit, we are sincerely serving all customers in the downhole motor stator tube, Seamless Honed Steel Tube, St52 Honed Pipe industry. 'Meet the real needs of customers and strive to exceed customer expectations' is our guiding ideology for providing products and services to customers. To uphold this belief, we have been working tirelessly. We are full of enthusiasm and look forward to your cooperation to create a better tomorrow! We warmly welcome to establish long-term friendly cooperative relations with like-minded and consistent businessmen to create a better future together!
Hydraulic Srb Pipes Introduction
Hydraulic Srb Pipes are presicion tubes with smooth inside , they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009 , EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose. IF you are looking for seamless cold drawn honed tubes or SRB tubes for hydraulic cylinder pipes or pneumatic cylinder tubes, please contact us without any hesitation.
Hydraulic Srb Pipe technical parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Original: Jiangsu, China
Certification: ISO9001.
Material: SAE1020, 20#, ST45, CK45, ST52, E355
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: packed in bundle, oiled inside, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
Mechanical Properties:
Final Supply | Cold finished | Cold drawn and stress-relieved (BK+S or + SR) | Hardness HB | |||
Parameters | T.S | Elongation | T.S | Y.S | Elongation | |
20# (A106B, ST45, E255) | ≧550 | ≧8 | ≧520 | ≧375 | ≧12 | 175 |
45#(CK45) | ≧650 | ≧5 | / | / | / | 207 |
Q345B(ST52, E355) | ≧640 | ≧5 | ≧600 | ≧520 | ≧15 | 190 |
25Mn | ≧640 | ≧5 | ≧600 | ≧510 | ≧15 | 195 |
27SiMn | ≧840 | ≧5 | ≧800 | ≧720 | ≧10 | 230 |
Quality control
1. We only buy raw material from famous tube factory, and Checking raw material quality before production.
2. We check the tube ID tolerance, OD tolerance and surface after cold drawn one by one.
3. We inspect the honed tube inside tolerance and surface again one by one after honing or skiving.
Our Advantage
1. We has two factories of 40000 square meters and totally 150 employees to promise the Honed Tubes In Stock best quality control;
2. According to the cylinder pressure and inside diameter size ,different hydraulic cylinder honed tube Would be choosed ;
3. Our motivation is --- customers’ satisfaction smile;
4. Our believing is --- pay attention to every detail;
5. Our wish is ----perfect co-operation.

Our Professional Manufacture Seamless Hydraulic Steel Cylinder Pipe has won wide praise and all customers praise, for which we are deeply honored, and will not change the original will continue to struggle for the majority of customers. Service is the foundation of our business, and customer satisfaction is the most important criterion to measure the quality of our work in each department and each employee. Today, our team is committed to innovation, and enlightenment and fusion with constant practice and outstanding wisdom and philosophy, we cater to the market demand for high-end goods, to do experienced products and solutions.
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