Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of astm a36 galvanized pipe for durability & corrosion resistance in China. Welcome to consult the quotation and import cheap astm a36 galvanized pipe for durability & corrosion resistance made in China here from our factory.
Pre galvanized Steel Pipe/GI Steel Pipe Material :
1. Raw materials grade : Q195, 235, 235B and Q345...
2. If requested, the zinc coating can customized up to 280 grams.
3. The purity of zinc wire is 99.99% zinc content with high purity.to remain the pipe welded seam antirust.
4. In the passivation process, we have own invention patents - galvanized pipe passivation liquid automatic spraying system to ensure even adhesion, high passivation efficiency, beautiful appearance.
Product Standard
American Standard: ASTM A500
European Standard ：EN 10219
Japanese Standard：JIS G3444
Product Description
| Pre galvanized iron tube | |||||||
| Grade | Outer Diameter | Diameter Tolerance | Wall Thickness | Thickness Tolerance | Length | Length Tolerance | |
| Q195 Q235 Q345 | inch | mm | mm | mm | mm | m | mm |
|
1/2 |
20 | +/-0.5 | 0.6-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 3/4 | 25 | +/-0.5 | 0.6-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 25.4 | +/-0.5 | 0.6-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | ||
| 1 | 32 | +/-0.5 | 0.7-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 38 | +/-0.5 | 0.7-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | ||
| 1-1/4 | 40 | +/-0.5 | 0.7-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 42 | +/-0.5 | 0.7-2.3 | +/-0.05mm | 3.0-12.0 | -0, +20 | ||
| 1-1/2 | 47 | +/-0.5 | 0.7-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 48 | +/-0.5 | 0.7-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | ||
| 2 | 59 | +/-0.5 | 0.8-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 60.3 | +/-0.5 | 0.9-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | ||
| 2-1/2 | 75 | +/-0.5 | 0.9-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 3 | 87 | +/-0.5 | 0.9-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
| 4 |
113 |
+/-0.5 | 0.9-2.5 | +/-0.05mm | 3.0-12.0 | -0, +20 | |
Product Show
Production Processes
Production Application
Building structural frames.
Scaffolding systems.
Greenhouse structures.
Fencing and handrails
Water and gas non-pressure piping
Quality Control
Incoming raw material inspection
Online wall thickness and OD control
Zinc coating thickness testing
Hydrostatic test/ flattening test
Third-Party Inspection-SGS / BV / TUV available upon request
Packing & Delivery
Bundled with steel strips
Plastic caps on pipe ends
Waterproof packing for sea shipment
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