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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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Cold Drawing Galvanized Steel Pipe for Military , BK BKS BKW ST44 Square Steel Tube
Our Steel Pipe Advantange:
1. 100% after-sales quality and quantity assurance.
2. Quick reply within 24 hours.
3. Large Stock for regular sizes.
4. Free sample 20cm high quality.
5. Strong produce capability and capital flow.
| Product Name | Cold Drawing Galvanized Steel Pipe |
| Material | St 44.4 / St45 |
| Standard | DIN 2391 / DIN1630 / EN 10305-4 / EN 10305-1 |
| Outer Diameter | 15mm-1200mm |
| Wall Thickness | SCH10,SCH20,SCH30,STD,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XS,XXS |
| Length | 1m,4m,6m,8m,12m according to buyer's request |
| Surface Treatment | galvanized, |
| Marking | Standard marking,or according to your request.Marking Method:Spray white paint |
| End Treatment | Plain End/Bevelled End/Grooved End/Threaded End With Plastic Caps |
| Technique | Hot Rolled or Cold Rolled ERW |
| Package | Loose package;Packaged in bundles(2Ton Max);bundled pipes with slings at the both end for easy loading and discharging;wooden cases;waterproof woven bag |
| Test | Chemical Component Analysis,Mechanical Properties,Technical Properties,Exterior Size Inspection,hydraulic testing,X-ray Test |
| Application | Liquid delivery,structure pipe,construction,petroleum cracking,oil pipe,gas pipe |
Description:
Dimensions of the galvanized tubes for hydraulic and pneumatic lines:
Outside diameter ranges from 6 to 350 mm and the wall thickness ranges from 0.8 to 30 mm. Precision steel tubes are delivered according to EN 10305-4, DIN 2391-1, STN 42 6711 and 42 6712, ČSN 42 6711 and 42 6712.
Synopsis of Process Routing:
DIN highly accurate cold drawn bright seamless steel tube is used
as the tube to be galvanized, the outer wall is electroplated, caps
are covered at two ends of tube to prevent from the dust.
Main Features:
Different color of zinc such as white, yellow, army-green, black is
evenly distributed in the surface of the tube, good brightness and
antirust and antisepsis could improve after zinc coated.
Length of the galvanized tubes:
in diameter <= 16 mm >=6000 + 100 mm
in diameter >= 16 mm <=24000 + 50 mm
Tolerances of the zinc coated tubes:
-tolerances of the outside diameter:
diameter between 4 - 30 mm | ±0,08 mm |
diameter between 35 - 38 mm | ±0,15 mm |
diameter above 42 mm | ±0,20 mm |
-tolerances of the inside diameter are according to EN 10305-4
-tolerance of the wall thickness ± 10%
The Main Steel grades for the zinc coated tubes:
St 30 Si / St 30 Al / St 35 / St37.4 / St45 / St 52 / St52.4 /
E235, E255,E355
DIN 2391 / EN 10305-1/ EN 10305-4 | |
Precision seamless tube and pipe with European&Germany standard | |
Application: | for Atuo;for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder. |
Size(mm): | O.D.:6mm-350mm ; W.T.:1-30mm; L:max 24000 |
Grade and Chemical Composition(%):
Grade | Chemical Composition(%): | ||||
C max | Si max | Mn | P max | S max | |
St 45 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 30 Si | 0.10 | 0.30 | <=0.55 | 0.025 | 0.025 |
St 30 Al | 0.10 | 0.05 | <=0.55 | 0.025 | 0.025 |
St 52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
Condition on delivery:
Steel Grade | BK | BKW | GBK | NBK | ||||
Code No. | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min | Tensile Strength N/mm2 min | Elongation at rupture N/mm2 min |
St 45 | 540 | 5 | 470 | 8 | 390 | 21 | 440-570 | 21 |
St 35 | 440 | 6 | 370 | 10 | 315 | 25 | 340-470 | 25 |
St30 Si | 400 | 8 | 330 | 12 | 280 | 30 | 290-420 | 30 |
St30 Al | 400 | 8 | 330 | 12 | 280 | 30 | 290-420 | 30 |
St 52 | 590 | 4 | 540 | 7 | 490 | 22 | 490-630 | 22 |
Final supply conditions:
Designation | Symbol | Description |
Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Galvanized tube category and related standard:
Galvanized tube category and related standard | |||
Galvanized tube category | Related Standard | Zinc coating thickness | Salt spray test |
Gr3+ Galvanized tube with blue and white zinc | ASTM B633-07 | 5-25um | 24--72 hours without white rust;48--168 hours without red rust |
Gr3+ Galvanized tube with color zinc | ASTM B633-07 | 5-25um | 48--96 hours without white rust;48--240 hours without red rust |
Gr6+ Galvanized tube with color zinc | ASTM B633-98 | 5-25um | 24--96 hours without white rust;48--124 hours without red rust |
Applications:
Zinc coated precision steel tubes (galvanized tubes) are destined for hydraulic and pneumatic pressure distribution (so called HPL tubes), production of automobile components, utility vehicles as well as for production of machine products such as fittings and joints. Cold drawn precision tubes are used as the semi-finished product and they are made from rolled seamless tubes. Precision tubes HPL types are made from carbon and alloyed steel.
Application areas:
Automotive, military, railway industry, with high requirement of the tubes brightness, cleanness, antirust, and antisepsis.
Product Photo
Factroy Pictures
Pipe & Tube Processing
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Packaging & Shippping
Certificates
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)
