Packaging Details | Exporting package/wooden box package/Or per customers’ requirement |
Delivery Time | 3~10 days |
Payment Terms | 30%T/T in advance or 100% L/C at sight |
Supply Ability | 8000MT/Month |
Application | Machinery|Automobile|Atuo|Oil cylinder tube|Military|Railway industry |
Delivery Condition | Annealed|Normalized|Heat treatment|BK|BKS|BKW|NBK|GBK |
Grade | St45/ St37/ E235/ E355 |
Product | Thin Wall Galvanized Steel Tube |
Surface treatment | Galvanized |
Wall Thickness | 0.8-30mm |
Place of Origin | Jiangsu China (Mainland) |
Brand Name | WUXI SYLAITH |
Certification | SGS ISO ROHS |
Model Number | St45 St37 E235 E355 |
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Product Specification
Packaging Details | Exporting package/wooden box package/Or per customers’ requirement | Delivery Time | 3~10 days |
Payment Terms | 30%T/T in advance or 100% L/C at sight | Supply Ability | 8000MT/Month |
Application | Machinery|Automobile|Atuo|Oil cylinder tube|Military|Railway industry | Delivery Condition | Annealed|Normalized|Heat treatment|BK|BKS|BKW|NBK|GBK |
Grade | St45/ St37/ E235/ E355 | Product | Thin Wall Galvanized Steel Tube |
Surface treatment | Galvanized | Wall Thickness | 0.8-30mm |
Place of Origin | Jiangsu China (Mainland) | Brand Name | WUXI SYLAITH |
Certification | SGS ISO ROHS | Model Number | St45 St37 E235 E355 |
High Light | galvanized steel tubing ,Seamless Steel Tube |
St45 St37 E235 E355 Galvanized Steel Tube Thin Wall Cold Drawn Oil Cylinder Tube ASTM B633-07
Galvanizing can increase the corrosion resistance of steel pipe and prolong its service life. Galvanized pipe USES is very wide, in addition to a general low pressure fluid such as water, gas, oil line pipe, also used as oil industry, especially the ocean oil field oil well pipe, oil pipe, chemical coking equipment of oil heater, the condensing, exchange of coal distillation wash oil cooler for tube, and trestle pile, mining tunnel supporting frame tube, etc.
Standard | ASTM B633-07 |
Out Dimensions | 6mm – 350mm |
Wall Thickness | 0.8mm - 30mm |
Length | Fixed(6m,9m,12,24m) or normal length(5-12m) |
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.
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 35 / St37.4 / St45 / St44.4 / 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 44.4 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 37.4 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
St 52.4 | 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 44.4 | 540 | 5 | 470 | 8 | 390 | 21 | 440-570 | 21 |
St 37.4 | 440 | 6 | 370 | 10 | 315 | 25 | 340-470 | 25 |
St 52.4 | 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
Application
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)
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2010
Total Annual:
180 Million-250 Million
Employee Number:
1200~1300
Ecer Certification:
Verified Supplier
Wuxi Sylaith Special Steel Co.,Ltd Wuxi Sylaith Special Steel Co.,Ltd has 20,000 square meters of indoor storage, more than 20,000 tons of spot inventory. spot product standard involves european standard, american standard, british standard, australian standard, german standar... Wuxi Sylaith Special Steel Co.,Ltd Wuxi Sylaith Special Steel Co.,Ltd has 20,000 square meters of indoor storage, more than 20,000 tons of spot inventory. spot product standard involves european standard, american standard, british standard, australian standard, german standar...
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