Active Member
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[China]
Address: Room 1109, Loft Office, Green Land International Plaza, No. 275-8 Guoding East Road, Shanghai 200433, P.R. China. (admin(a)shunitesteel.com)
Contact name:Eric
SHANGHAI UNITE STEEL |
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ASTM 1330 Hydraulic Cylinder Steel Tube For Engineering Mechanical Oil Cylinder
OVERVIEW
Honed tube is well known as hydraulic cylinder tube in industries. As honed tubes are the most important material of manufacturing hydraulic cylinders.
We manufacture the honed pipes using our factory’s “Suitable To Hone” Steel Cold Drawn Seamless Tubes (CDS tubes). In order to produce extremely precise ID dimensions and smoothly ID surface, the honing process involves using abrasive polishing stones and abrasive paper to remove small amounts of material. Besides the honing process, we also use the SRB process (skiving and roller burnishing) to produce honed tubing.
Honed tube is ready to use for hydraulic cylinder applications without further ID processing.
APPLICATIONS
Honed tubing and SRB tubes (skived and roller burnished tubes) are
mostly used as cylinder tube, such as hydraulic cylinder tube and
pneumatic cylinder tubing, which are widely used for manufacturing
and repairing hydraulic cylinders and pneumatic cylinders. As honed
tube usually has very accuracy dimension tolerance and good surface
smoothness, so this product is also used in applications where
precision dimension or high smooth surface is need.
PRODUCTION STANDARDS
Hydraulic cylinder tube is made of our factory’s own cold drawn seamless tube (CDS tube), by honing process or Skiving & Roller Burnishing process. Mean while the tube is usually produced according to norms as DIN 2391, DIN 1630, DIN 1629, EN 10217, A 519, etc on customer’s request.
-DIN 2391: Seamless Precision Steel Tubes
-BS EN 10297-1:2003: Seamless Circular Steel Tubes for Mechanical and General
Engineering Purpose
-BS EN 10305-1:2002: Steel Tubes for Precision Applications
Technical Delivery Conditions Seamless Cold Drawn Tubes;
-ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
STANDARD SPECIFICATIONS
| Process | Seamless |
| Shape | Round |
| Size Range | OD: 30-500mm; WT: 3-50mm |
| Thickness | Upto 50mm |
| Pipe End | Plain / Beveled / Vanished / Plastic Caps |
| Coating | Black / Galvanised / 3LPE / Turned / Peeled / Grinded / Polished / Anti – Corrosion Oil |
| Length | 14 Mtr max, Cut to Length available |
| Heat Treatment | Spheroidizing / Full Annealing / Process Annealing / Isothermal Annealing / Normalizing / Quenching / Martempering (Marquenching) / Quench And Tempering / Austempering |
| Application | Oil & Gas / Hydro Carbon Process / Automotive / Boiler, Heat Exchanger / Plumbing, HVAC & Firefighting / Structural / General Engineering / Railways / Sewage & Waterwell |
| Quality Inspection | Third Party inspection is acceptable (SGS, BV etc.) |
Chemical Requirements, Composition, %
| Steel Grade | Chemical composition(%) | |||||||
| C | Si | Mn | P | S | Cr | Cu | Ni | |
| max | max | max | max | max | max | max | max | |
| ASTM 1330 | 0.28-0.33 | 0.15-0.35 | 1.60-1.90 | 0.035 | 0.040 | 0.30 | 0.30 | 0.30 |
Mechanical Properties
| Standard | Steel Grade | Yield strength MPa (>=) | Tensile strength MPa (>=) | Elongation % (>=) | Reduction of area % (>=) | Hardness Brinell |
| ASTM A519 | 1330 | 821 | 916 | 22 | 41 | 111 |
Quality Assurance
Pipe wall thickness deviation, thickness irregularity, outer diameter deviation and small ellipticity are used in the cylinder.
Through the mandrels, mandrel, furnace temperature control tube surface finish good in vivo and in vitro, can better control the tube pits and macroscopic defects such as scale, better meet customer scraping after tumbling cylinder surface quality requirement.
a. Test for longitudinal imperfections
- Eddy current test - EN10246-3, level E3
- ultrasonic testing - EN10246-7, level U3
b. Leak-tightness
- Non-destructive testing for verification of leak-tightness shall
be carried out in accordance with EN10246-1
ADVANTAGES
Package
In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or upon request
Payment & Delivery
1. Both T/T and L/C will be acceptable
2. Trade Terms: FOB, CIF, CFR
3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties
4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples
Shanghai Unite Steel Trading Co., Ltd
We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer
bases and trading company. We specialized in special
steel which include alloy structural steel and carbon steel
and stainless steel, etc. All material are
with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party,
such as TUV, CE, if you need. Secondly, we have a complete set
of inspection system and every process is checked by QC. Quality is
the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our
warehouse. If the material doesn't have stock, the delivery lead
time is about 5-30 days after receiving your prepayment or
firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you
come to China and arrange our driver to our airport to pick you up
when you come.
