Galvanized Steel Pipe Advanced Coating Techniques
Round pipe: 17mm-273mm
Square pipe:15mm x 15mm - 400mm x 400mm
Rectangular pipe: 10mm x 20mm -200mm x 400mm
Wall thickness:
Round pipe: 0.6mm-12mm
Square pipe:0.6mm-20mm
Rectangular pipe: 0.6mm-20mm
Length:2m-5.8m/6m/12m ( We can adjust length according to your request)
Standard:GB/T 3091 Q195/Q215/Q235/Q345, BS 1387, EN 39, EN 1139 S235JR/S275JR, ASTM A53 GR. A/B/C, JIS G3444 STK 400/STK 500
Pipe type:Seamless & Welded Steel Pipe (Round/Square/Rectangular)
End:Square Cut/Threaded, Burr Removed
Zinc Coating: 120~500 g/m2 （30um~70um）
Packing:Steel Strips bundled, Plastic Caps plugged, Waterproof Paper wrapped etc.
Classification :
PRODUCT DETAILS
Description
Galvanized pipes have a wide range of uses. In addition to oil and other low-pressure fluid pipelines, it is also used as oil well pipes in the petroleum industry, especially in offshore oil fields, oil heaters in chemical coking equipment, coal distillation, and oil washing converter pipes, bridges, etc. Pipe pile, mining tunnel support frame with pipe, etc. Developed countries in the world started to develop new pipes and continuously banned galvanized pipes.
Thickness | 1-200mm；or as required | Length: | 2000-16000mm，or as required |
Dimensions | 16-1020mm；(1/2inch~40inch)Dimensions | Technique | Hot Rolled Or Cold Rolle |
Zinc Coating | pre galvanized steel pipe: 60-150g/m2 | Surface treatment | Cold galvanizing，Hot dip galvanized |
Certification: | CE, ISO, SGS，BV，Mill Certificate | Standard: | ASTM，JIS，GB，DIN，EN |
price terms | FOB,CRF,CIF,EXW, CPT | Payment Terms | T/T, L/C at sight,West Union |
Grade | Q195—Grade B, SS330, SPC, S185 | ||
Q215—Grade C,CS Type B, SS330, SPHC， | |||
Q235---Grade D, SS400, S235JR, S235JO, S235J2， | |||
Q345---SS500, ST52，S355JR | |||
Delivery Detail | Standard has Stock; Normal About 3-5days; Custom-made 15-20days；According to order's quantity. | ||
Packing | standard export packing (inside:water proof paper,outside:fumigated wooden box) | ||
Specification&Standard
hot-dip/cold galvanized steel pipe specification
regulation | grid | OD mm | Wall thickness mm | Minimum wall | Welded pipe ( 6 m fixed length) | Galvanized pipe ( 6 m fixed length) | ||
Nominal inner diameter | inch |
| Thick mm | Meter weight kg | Root weight kg | Meter weight kg | Root weight kg | |
DN15 | 1/2 | 21.3 | 2.8 | 2.45 | 1.28 | 7.68 | 1.357 | 8.14 |
DN20 | 3/4 | 26.9 | 2.8 | 2.45 | 1.66 | 9.96 | 1.76 | 10.56 |
DN25 | 1 | 33.7 | 3.2 | 2.8 | 2.41 | 14.46 | 2.554 | 15.32 |
DN32 | 1.25 | 42.4 | 3.5 | 3.06 | 3.36 | 20.16 | 3.56 | 21.36 |
DN40 | 1.5 | 48.3 | 3.5 | 3.06 | 3.87 | 23.22 | 4.1 | 24.6 |
DN50 | 2 | 60.3 | 3.8 | 3.325 | 5.29 | 31.74 | 5.607 | 33.64 |
DN65 | 2.5 | 76.1 | 4 | 3.5 | 7.11 | 42.66 | 7.536 | 45.21 |
DN80 | 3 | 88.9 | 4 |
| 8.38 | 50.28 | 8.88 | 53.28 |
DN100 | 4 | 114.3 | 4 |
| 10.88 | 65.28 | 11.53 | 69.18 |
DN125 | 5 | 140 | 4.5 |
| 15.04 | 90.24 | 15.942 | 98.65 |
DN150 | 6 | 168.3 | 4.5 |
| 18.18 | 109.08 | 19.27 | 115.62 |
DN200 | 8 | 219.1 | 6 (welded pipe) |
| 31.53 | 189.18 |
|
|
DN200 | 8 | 219.1 | 6.5 hot-dip galvanizing |
|
|
| 36.12 | 216.72 |
GB / T 3091-2001 hot-dip galvanized pipe wall thickness deviation
name Weigh | Chinese standard | Enterprise standard | Contrast conclusion | ||||||
Low pressure fluid conveying welded steel pipe | Welded steel pipe | ||||||||
GB/T3091-2001 | Q/YF01-2002 | ||||||||
1 | Steel pipe outer diameter | Steel pipe outer diameter, outer diameter allowable deviation | Better than Chinese standards | ||||||
Outer diameter D/mm | Tube outer diameter deviation mm | Tube outer diameter Deviation mm | Outer diameter D | 8″ | ± 0.60mm | ||||
D< 48.3 | ± 0.5mm |
| 5″-6″ | ± 0.50mm | |||||
48.3<D < 168.3 | ± 1.0% |
| 4″ | ± 0.40mm | |||||
168.3<D < 508 | ± 0.75% | +2.4 -0.8 | 3″-“ | ± 0.30mm | |||||
D>508 | ± 1.0% | +3.0 -0.8 | 2″ or less | ± 0.20mm | |||||
Wall thickness deviation | ± 12.5% | Wall thickness S | 1.8 5.75mm | 5% | |||||
2 | Usual length | Allowable deviation | length | Usual length | Allowable deviation | Better than Chinese standards | |||
4M-12M | +20 -0 | 2 inches or less | 5-0 | ||||||
Double length: 5-10mn ® should be left for each double in the usual length Margin | +20 -0 | 2.5 inches – 4 inches | 5-0 | ||||||
5 inches or more | 15-0 | ||||||||
Special length | 20-0 | ||||||||
Standard: ASTM A53, BS1387-85, GB/T3091-08, DIN2440, JIS-G3444, EN10240, EN10255
Grade: Q195, Q215, Q235, Q345, S235JR, S275JR, STK400, STK500
API SPEC 5L — Specification for Line Pipe
ASTM A53/A53M — Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A500 — Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
BS 1387 — Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads
BS 1139 — Metal scaffolding. Specification for prefabricated mobile access and working towers
EN 39 — Loose steel tubes for tube and coupler scaffolds
EN 10255 — Non-alloy steel tubes suitable for welding and threading
Process
Welded pipe inspection - pickling - washing - coating solvent - aligning - drying - hot galvanizing - external blowing - internal blowing - water cooling - intermediate inspection - passivation - drying - typing - packaging - final inspection
Packing
CUSTOMER VISIT
Its products are exported to over 100 countries and regions, with production, sales, and export volumes consistently ranking among the highest in China.
QUALITY INSPECTION
The company has introduced world-leading equipment for ironmaking, steelmaking, tube rolling, tube processing, heat treatment, and non-destructive testing.
FACTORY WORKSHOP
Its 7 rolling facilities cover all 4 types of seamless piperolling equipment, which are MPM, PQF, ASSEL and REM. Among these rolling facilities, the high precision 3-roll continuous rolling mill – PQF (Premium Quality Finishing).
Factory Workshop
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APPLICATION AREAS
Ship terminal
New Energy
High-rise Buildings
Automobile Manufacturing
Airport construction
Aerospace
FAQ
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Q2:What product information do I need to provide?
Q3:It's my first time to import steel products, can you help me with it?
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Q5:What ports of shipment are there?
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