Raw material is mainly from some famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc, which are the best and largest raw material manufacturers in China. we have been through ISO9001:2000 international quality system certification. Warranty period for our honed tubes and chrome bars is 2 years. For some special or important customers, the period is 5 years.
2. We own 35 sets honing machines producing tube ID from 38.1mm to 1000mm, at max length of 18m.
3. We own 18 sets of equipment for piston rod in completely production, producing OD from 12mm to 500mm, at max length of 16m.
Plate according to customers different requirements such as Chrome, Nickel, and Ceramic. Thickness is from 10m to 100m.
4. High Precision:
Honed tube (Roughness of tube is 0.2m and straightness is less than 0.15/1000), piston rod (Plating thickness is 10-100 micron. Surface roughness is 0.2m and straightness is also less than 0.15/1000)
5. Product details are completely according to International Standard, chrome rod and honed tube must be cut flatly, and no chrome marks on the surface of rod. (Most of domestic mills dont do this in order to reduce cost)
6. Delivery time is very fast. The average delivery time is 5-30 days after confirming the orders. Production output for honed tubes is about 300tons per month and 200tons for chrome bars per month.
7. Package: our packages are safer than others supplier in China. Packing for rod normally we choose is cardboard that film attached inside, which does not only prevent rods from scratch but also from oil rusting. Tubes are made with caps at both end and painted oil on inside and outside surface. For full container, extra package like parcel at outside will be used.
8. Each product will do full test (include chemical, mechanical, tolerance, roughness, chrome plate thickness, hardness, salt spray, etc). All the test report will be kept 5 years. We will make the Mill test certificate to customer if they need.
We are Chinese manufacturer of seamless cylinder tubes, include cold drawn tubes, honed tubes, skived and burnished tubes.
Material: St52, E355, A106B, CK45 and so on
ID size: from 50 to 400mm
ID tolerance: H8
Roughness: 0.4 Max
Purpose: for hydraulic cylinder or pneumatic cylinder
in bundle, with caps, oiled
65994 Seamless Hone Tube Suppliers
Short on time? Let Seamless Hone Tube sellers contact you.
Established in December 1992, Yantai Xinpeng Steel Pipe Co., Ltd. has been a professional hydraulic cylinder tube manufacturer over 20 years.
What we can provide are seamless steel tube, cold drawn tube, cold drawn steel tube, cold rolled pipe, cold rolled steel pipe, cold drawn pipe, cold drawn steel pipe, cold rolled tube, cold rolled steel tube, honed tube, honed pipe, honed steel tube, honed steel pipe, hydraulic cylinder tube, hydraulic cylinder pipe, hydraulic cylinder steel tube, hydraulic cylinder steel pipe, carbon tube, carbon steel pipe, and so on.
Xinpeng are equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace,strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.Strictly comply with the ISO9001 System, assure the best quality of seamless pipe.
High Precision Steel Pipe for Gas spring Cylinder
Type:Seamless and Welded Steel Tube
Roughness 0.1-0.8ra
Material E195-E235,Q195-Q235,#10,#20,#45,SAE1010,SAE1020
Surface:Black/bright
Standard:DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094-2000, GB/T 8163-1999, JIS G3101
Size :OD 3mm-140mm Thickness 0.5-20mm
Processing :Cold rolled /cold drawn
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
Woven bag / wooden or crate carton/ Bundle Packing/ Plain end or vanished as per customer's request.
Usage: Gas Spring Cylinder
Hollow Section steel Tube is the general name for the steel pipe other than thecircular steel pipe. Such as square, rectangle, oval,elliptical, cone, trapezoidal, spiral, etc. Different steel pipe can more adapt to the particularity of use conditions, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, light textile and boiler manufacturing. The methods of producing different pipes are cold pulling, electric welding, extrusion and hot rolling, etc. Compared with the round tube, the different tubes generally have a larger moment of inertia and cross section modulus, and have a large bending resistance and torsion resistance, which can greatly reduce the structural weight and save steel.
Cast Iron and Ductile Iron tube and fittings PL739
Cast Iron and Ductile Iron tube and fittings can be offered by our comapny to meet different engineering needs.
The difference between ductile iron and gray iron
1. Different chemical composition
Nodular cast iron contains nodular graphite, which can improve its toughness and strength, while reducing brittleness. Gray cast iron contains a lot of carbon, so that its hardness and wear resistance is high, but the toughness is poor.
2. Different organizational structures
The structure of nodular cast iron contains nodular and ferrite, and the distribution of nodular is uniform. While the structure of gray cast iron is mainly ferrite and pearlite, and the distribution of pearlite is uneven.
3. Different performance
Ductile iron has high strength and toughness, and has good corrosion resistance. It is uitable for the manufacture of high load and high pressure parts. The hardness and wear resistance of gray cast iron are high. It is suitable for the manufacture of friction and wear parts.
Application field
Cast iron : because of its low strength and good vibration resistance. It is often used in the production of parts under compressive stress, such as box, base, etc.
Ductile iron : because of its high strength and good toughness. It is often used in the manufacture of parts requiring high strength and toughness, such as crankshaft, connecting rod and so on.
