Zhangjiagang Hua Dong Energy Technology Co., Ltd.
Sales & Support:
 
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| Place of Origin: | China(Mainland) |
| Brand Name: | HDT |
| Certification: | ASME, ISO9001,ISO14001, PED |
| Model Number: | HDT-CSWT001 |
| Minimum Order Quantity: | 5T |
|---|---|
| Price: | 800 - 9000 USD / ton |
| Packaging Details: | seaworthy packing for exporting |
| Delivery Time: | 60-75days |
| Payment Terms: | L/C, T/T, Western Union |
| Supply Ability: | About 10000 ton / month |
| Material: | Carbon Steel Welded Tube | Finishing: | Annealed, Normalized, Normalized And Tempered |
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| Application: | Boiler&heat Exchanger, Energy, Petrochemical, Mining, Food, Paper, Gas And Fluid Industry | Certificates: | ASME, TUV, SGS, CE, ISO9001, |
| Shape: | Welded Pipe | Technique: | Hot Rolled,ERW,Cold Drawn |
| Highlight: | Galvanized Rhs Rectangular Hollow Section,Galvanized Rhs Pipe |
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Galvanized Cs Carbon Steel Welded Tube Rectangular Hollow Section Steel Pipe
Specification of Thickness of Anti-corrosive Coating
| Products Name | hollow section steel pipes pre-galvanized steel pipe |
| THK | 0.5-2.75mm |
| Length | 5.8m or 6m or as per customer request |
| HS code | 7306309000 |
| Zinc coating | 40-275g/m2 |
| payment | T/T L/C cash |
| Application | Fluid Pipe, Fluid transport and construction |
| MOQ | 1TONS |
| Produce line | 6 lines |
| Advantage | the same quality as hot dip galvanized pipe, but much cheaper than hot dip galvanized pipe |
Pre-Galvanized square pipe.Zinc coating 40-275g/m2
Square 10*10-200*200mm
Rectangular10*20-150*200mm
THK:0.5-2.75mm
Length:5.8m or 6m or as per customer request
HS code:7306309000
Zinc coating:40-120g/m2
Advantage: the same quality as hot dip galvanized pipe, but much cheaper than hot dip galvanized pipe
Roduction Method
The cold drawn welded tube is produced by drawing ERW (electric resistance welded tube).During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.
Main Date
Material: E355
Other Aviliable Material: E155 E195 E235 E275
Outer Diameter Range: 10-50mm
Wall Thickness Range: 1.5-8mm
t/D ≥ 0.2(Normal: t/D=0.1)
Standard: En10305-2
Process: Cold Drawn, Cold Rolling
Typical Specification
| Grade | Welding Typical Specification |
Yield Strength |
|
| 1 | E355 | Φ38×4.5 | 355~450Mpa |
Chemical Component
| Steel Number | Quality Level | Thickness/mm | Deoxidize Method | C(%)≤ | Si(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ |
| E185(Fe310) | 0 | - | - | - | - | - | - | - |
| E235(Fe360) | A B C D |
≤16 >16-25 ≤40 >40 |
N - - E NE NE GF |
0.22 0.17 0.20 0.17 0.20 0.17 0.17 |
- 0.40 0.40 0.40 0.40 0.40 0.40 |
- 1.40 1.40 1.40 1.40 1.40 1.40 |
0.050 0.045 0.045 0.045 0.045 0.040 0.035 |
0.050 0.045 0.045 0.045 0.045 0.040 0.035 |
| E275(Fe430) | A B C D |
≤40 >40 |
- E NE NE GF |
0.24 0.21 0.22 0.20 0.20 |
- 0.40 0.40 0.40 0.40 |
- 1.50 1.50 1.50 1.50 |
0.050 0.045 0.045 0.040 0.035 |
0.050 0.045 0.045 0.040 0.035 |
| E355(Fe510) | C D |
≤30 >30 ≤30 >30 |
NE NE GF GF |
0.20 0.22 0.20 0.22 |
0.55 0.55 0.55 0.55 |
1.60 1.60 1.60 1.60 |
0.040 0.040 0.035 0.035 |
0.040 0.040 0.035 0.035 |
Stength Yield
| Steel Number | Yield Strengh/MPa | |||||||
| ≤16 | >16-40 | >40-63 | >63-80 | >80-100 | >100-150 | >150-200 | ||
| E185(Fe310) | - | 185 | 175 | - | - | - | - | - |
| E235(Fe360) | A B BNF C D |
235 235 235 235 235 |
225 225 225 225 225 |
215 - 215 215 215 |
215 - 215 215 215 |
215 - 215 215 215 |
195 - 195 195 195 |
185 - 185 185 185 |
| E275(Fe430) | A B C D |
275 275 275 275 |
265 265 265 265 |
255 255 255 255 |
245 245 245 245 |
235 235 235 235 |
225 225 225 225 |
215 215 215 215 |
| E355(Fe510) | C D |
355 355 |
345 345 |
335 335 |
325 325 |
315 315 |
295 295 |
285 285 |
Delivery Condition:
1) +C No heat treatment after the final cold drawing process.
2) +LC After the final heat treatment there is a suitable drawing pass.
3) +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.
4) +A After the final cold drawing process the tubes are annealed in a controlled atmosphere.
5) +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
Advantage (compare with seamless cold drawn tube)
Better shape
Improved quality surface
Tight Excentricity and wall thickness tolerances (the eccentric
Tube more safety
Good toughness at low temperature
USA Market: 90% of the cylinder in the USA market are produced with welded tubes
Cost fix Lengths More Cheaper
Advantage of Our Company
Top class of welding line: SG/76 Enhanced High-precise High Frequency Welding Tube Production Line. The tube is of small outer diameter (D) and thick wall thickness (t): t/D≥0.2, and high size precision.
Application
Contact Person: Mrs. Sandy
Tel: 008615151590099
Fax: 86-512-5877-4453
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