| Customization: | Available |
|---|---|
| After-sales Service: | All Quality Problems of The Goods Are Returned for |
| Warranty: | 1 Month |
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Hot Rolled Smls Q235B Galvanized Steel Pipe Dx51d+Z Gi Steel Round Pipe for Greenhouse Frame ASTM S275jr Steel Tube
Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe base and hot-dip galvanized steel pipe undergo complex physical and chemical anti-galvanizing to form a zinc-iron alloy layer with a tight corrosion-resistant structure.
The alloy layer is formed by combining the pure zinc layer and the steel pipe matrix. Hot dip galvanizing is one of the most excellent electroplating methods for protecting steel substrates. It is the liquid state of zinc. After quite complex physical and chemical action, not only a thick pure zinc layer is plated on the steel, but also a zinc-iron alloy layer is formed. This method not only has the corrosion resistance of galvanizing, but also has strong corrosion resistance unmatched by galvanized due to the zinc-iron alloy layer.
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Product Name
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Hot dip galvanized pipe
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Out Diameter
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Hot dipped galvanized:1/2''-24''(21.3mm-600mm).
Such as 21.3mm, 33.4mm, 42.3mm, 48.3mm, 114.3mm or as customer request.
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Thickness
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Hot dipped galvanized: 0.8- 25mm.
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Zinc coating
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Hot dipped galvanized:35μm-200μm
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Type
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Electronic Resistance Welded (ERW)
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Steel Grade
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Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D
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Standard
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BS1139-1775, EN1039, EN10219, JIS G3444:2004, GB/T3091-2001, BS1387-1985, DIN EN10025, ASTM A53 SCH40/80/STD, BS-EN10255-2004
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Surface Finish
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Pre-galvanized, Hot dipped galvanized, Electro galvanized, Black, Painted, Threaded, Engraved, Socket.
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International Standard
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ISO 9000-2001, CE CERTIFICATE, BV CERTIFICATE
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Packing
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1.Big OD:in bulk
2.Small OD:packed by steel strips
3.woven cloth with 7 slats
4.according to the requirements of customers
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Main Market
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Middle East,Africa, Asia and some Uropean country and South America, Australia
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Country of origin
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China
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Productivity
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5000Tons per month.
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Remark
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1. Payment terms : T/T ,L/C
2. Terms of trade : FOB ,CFR,CIF ,DDP,EXW
3. Minimum order : 1 tons
4. Delivery time : Within 25 days.
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STEEL
GRADE
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CHEMICAL COMPOSITION %
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MECHANIC PROPERTY
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C.B OF COATING
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||||||
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C
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Si
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Mn
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S
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p
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T.S
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Y.S
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E.L
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||
|
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x103
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x103
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x102
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x103
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x103
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Mpa
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Mpa
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%
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d=180
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JIS G3302
SGCC
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12
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30
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41
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31
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21
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480
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300
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13
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OK
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JIS G3302
SGCH
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12
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10
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21
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18
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6
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680
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650
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20
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OK
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ASTM 653
CS.B
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29
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30
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60
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35
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30
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386
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250-380
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20
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OK
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DX51D+Z
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20
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21
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18
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1.8
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11
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355
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245
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38
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OK
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G550
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12
|
6
|
73
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5
|
17
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715
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654
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8
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OK
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Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for steel pipe, and our company also is a very professional a trade company for steel
products.we can also provide a wide range of steel products.
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