We always consider the needs of customers as our quest, and try our best to provide wholeheartedly high-quality St52 Cold Drawn Pipe, Pipe Welding Positioners, Rotary Welding Positioner and first-rate services to customers at home and abroad to create a brighter future. We will provide you with the latest information, choose better products with better cost performance and strive to give you the best service. Innovation is the direction of our work and the yardstick of value evaluation. To achieve customers is to achieve ourselves. Our goal is to provide high-quality products at competitive prices, and offer first-class services to customers all over the world to meet their different needs. We look forward to friendly cooperation with friends from around the world, and jointly develop international markets with excellent quality, reasonable prices and good services.
Pneumatic Honed Tube Introduction
Honed Tubes 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.
Pneumatic Honed Tubes 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 |
Production process
Raw material – annealing for material of 45#, 27SiMn, 25Mn – Acid cleaning – parkerizing & Saponifying – cold drawn – leveling – saw off bad section – stress relieving – leveling –honing or skiving – inspection – oiled plated - packing
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.
Based on our many years of experience, not only learning the advanced level of the industry, but also through our own repeated experiments to compare and improve, we promise that our Honed Tube for Pneumatic Cylinder has the most reliable and stable performance. We win the market with 'integrity', seek development with 'innovation', continuously increase investment in science and technology, expand business areas, and serve our customers with high efficiency and high quality. Our company, is always regarding quality as company' s foundation, seeking for development via high degree of credibility, abiding by iso9000 quality management standard strictly, creating top-ranking company by spirit of progress-marking honesty and optimism.
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