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[China]
Trade Verify
Address: 168 Qiangao Road, Liangxi District, Wuxi,China
Contact name:Ava
WUXI SYLAITH SPECIAL STEEL CO.,LTD |
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Verified Suppliers
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E355 ST52 H8 ST45 1045 DIN 2391 Cold Drawn Seamless Hydraulic Cylinder Honing Pipe
In the standard it is DIN2391-1. The raw materials of the hydraulic steel pipes have undergone precision drawing, non-oxidative bright heat treatment (NBK state), non-destructive testing, the inner holes of the steel pipes have been washed and pickled under high pressure, the inner and outer walls of the steel pipes have been treated with anti-rust oil, and both ends are sealed for dust-proof treatment. . The steel pipe produced has high precision and good finish. There is no oxide layer on the inner and outer walls of the steel pipe. The steel pipe can withstand the high pressure of the liquid flow through it. The steel pipe is cold-bent without deformation, and can be flared and flattened without cracks. Mechanical properties can be bent at any angle without deformation. It is mainly used to prepare steel pipes in the hydraulic system oil circuit, also known as hard piping in hydraulic systems, precision steel pipes for automobiles, and the specifications are generally outer diameter (D) Φ4mm-76mm, wall thickness (S) 0.5mm-6.0mm. The length is 6 meters to length (except custom-made), and the delivery status is NBK (normalizing), GBK (annealing), BKS (stress relief annealing). The main materials are ST35, ST37.4 (10#), ST45 (20#), ST55 (35#), ST52 (16Mn), etc., which can meet the requirements for steel pipes with high precision, high finish, high tensile strength and high mechanical properties. client.
| End Shape | Beveled end, plain end, vanished, or adding plastic caps to protect
the two ends requirements | |
Surface Treatment | Oiled, Galvanized, Phosphate etc | |
| Technique | Cold drawn & cold rolled | |
| Application | 1. Automotive and mechanical pipes | |
| 2. Petroleum cracking pipes | ||
| 3. High Pressure Boiler Pipe | ||
| 4. Low and middle pressure fluid transportation pipeline | ||
| 5. Chemical fertilizer equipment pipes | ||
| 6. Heat exchanger pipes | ||
Delivery Conditions | 1. BK (+C) | No heat treatment after last cold forming process. |
| 2. BKW (+LC) | After last heat treatment there is a light finishing pass (cold drawing) | |
| 3. BKS (+SR) | After the final cold forming process the tubes are stress relieve annealed. | |
| 4. GBK (+A) | After the final cold forming process the tubes are annealed in a controlled atmosphere. | |
| 5. NBK (+N) | After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. | |
| Package | 1. Bundle Packing. | |
| 2. Plain end or vanished as per customer's request. | ||
| 3. Wrapped in waterproof paper. | ||
| 4. Sackcloth with several steel strips. | ||
| 5. Pack in heavy tri-wall boxes. | ||
| able 1- Chemical composition | ||||||
| Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
| E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
| E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 | |
| E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 | |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 | |
| Table 2 - Mechanical properties at room temperature | |||||||||
| Delivery Condition | BK | BKW | GBK | NBK (N) | |||||
| Steel Grade | Rm | A % | Rm | A % | Rm | A % | Rm | ReH | A % |
| Mpa (Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | Mpa(Min) | (Min) | |
| E215 | 430 | 8 | 380 | 12 | 280 | 30 | 290~430 | 215 | 30 |
| E235 | 480 | 6 | 420 | 10 | 315 | 25 | 340~480 | 235 | 25 |
| E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440~570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 450 | 22 | 490~630 | 355 | 22 |
Factory test and other terms
1.Nondestructive Electric Test
2.Heat Treatment: according to Standard
3.Surface Condition:According to Standard.
4.Grain Size:According to standard
5.Sampling:flattening,flaring,grain size,Marking
6.we provide bevel end,plastic cap, varnish coating, oiled or black painted to prevent rustand other packing service.
Competitive Advantage
Welded Cold Drawn Steel tubes are now our new and stable products for automobiles and related industries.
We can produce size range from OD 15mm-60mm, WT 1.5mm-10mm.
Product Photo
Application
Packing & Delivery
Our Factory
FAQ
Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel
pipe and tube since 2010.
We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless
Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded
pipes can also be available
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And
to get free samples, you need to send us you detailed receiving
address (including post code) and your DHL/FedEx/UPS account for
collecting samples, courier cost will be paid in your side.
Q4. CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings
that will be most satisfy you.
Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take
flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every
day 5 flight around noon time).
