Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.
GI pipe,GI tube
galvanized steel pipe (GI PIPE)
O.D. 21.5mm-219mm
THICKNESS:0.8mm-15mm
ZINC COATING: 80g/m2, 320g/m2, 600g/m2
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Hot Dipped Galvanized Steel Pipe |
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O.D |
O.D tolerance |
W.T |
Thickness Tolerance |
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20--219MM |
±0.03 |
0.6--15MM |
±0.02 |
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Length |
2--12M , according to customers' requirements |
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Zinc coating |
80--600g/m2 |
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International Standard |
ISO 9001;2008 |
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Standard |
ASTM A53 / BS 1387-1985/API/JIS/DIN/EN/BS/GB |
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Material |
Q195/Q215/Q235/Q345/SPHC/08AL/08F/HG5/DF08/Q195-Q345/M8 |
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Product Category : |
Metallurgy, Mineral & Energy |
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Technique: |
High-frequency welded |
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Packing |
Package: 1. in bundles 2.waterproof package 3.loose package 4. Seaworthy package at the end of pipes 4.according to customers' requirements |
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Usage |
1.structural scaffolding pipes. 2.For low pressure liquid delivery such as water , gas and oil. 3.For construction , e.g building greenhouse |
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Main market: |
Middle east, Africa, North and South America, East and West Europe, South and southeast Asia Australia |
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Place of Origin |
China |
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HS code: |
7306309000 |
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Productivity |
20000 Ton/Month |
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Processing technology available: |
Threading , coupling and with plastic caps protected |
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Remarks |
1) Payment term : T/T or L/C at sight 2) Trade Terms : FOB / CFR /CIF 3) Minimum quantity of order : 25 MT 4) Delivery period : 10 to 30 Days . |
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Standards:ASTM A53 BS1378 GB/T3091-2001
OD21.3-273.3
Min Order:10MT
FOB Price:US$500-850/ton
-Widely used for green house,fence,etc,structure
-Produced according international standard
-Satisfaction in min order
Description of GI PIPE
-constantly welded by ERW
-water standard
-clean surface with 40micron zinc thickness hot dipped
-portable packing
Standard:BS,GB,ASTM
Thickness:0.75-8mm
OD:21.3-273.1mm
min order:15mt
delivery time:to actual QTY
payment terms:L/C,T/T
chemical composition-Q235:
Q235 made by grade A/B/C/D(GB700-88)
Q235A C0.14~0.22% Mn0.30~0.65 Si≤0.30 S≤0.050 P≤0.045
Q235B C0.12~0.20% Mn0.30~0.670 Si≤0.30 S≤0.045 P≤0.045
Q235C ≤0.18% Mn0.35~0.80 Si≤0.30 S≤0.040 P≤0.040
Q235D≤0.17% Mn0.35~0.80 Si≤0.35 S≤0.040 P≤0.035
mechanical behavior-Q235:
tensile strength:σ/MPa 375-500
tensil strengtn(δ5/%)
>26(a<16mm),>25(a>16-40mm)
>24(a>40-60mm),>23(a>60-100mm)
>22(a>100-150mm),>21(a>150mm)
a=wt or diameter
| nominal size(inch) | out diameter(mm) | thickness(mm) |
| 1/2" | 21.3 | 0.8-2.8 |
| 3/4" | 26.9 | 0.9-2.8 |
| 1" | 33.7 | 1-3.2 |
| 11/4" | 42.4 | 1-3.5 |
| 11/2" | 48.3 | 1.5-3.5 |
| 2" | 60.3 | 1.5-3.5 |
| 21/2" | 76.1 | 1.5-3.75 |
| 3" | 88.9 | 4 |
| 4" | 114.3 | 4 |
| 5" | 139.7 | 4 |
| 6" | 168.3 | 4.5 |
| 8" | 219.1 |
4.0-6.0 |
MATERIAL IN DIFFERENCE OF GI PIPE
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GRADE |
MECHANICAL PROPERTY |
CHEMICAL COMPOSITION |
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Yield strength |
Tensile strength |
elongation |
C |
Si |
Mn |
S |
P |
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MPa |
Kg/mm2 |
MPa |
Kg/mm2 |
min |
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Q215A Q215B |
215 |
22 |
335-410 |
34-42 |
31 |
0.09-0.15 |
0.03 |
0.25-0.55 |
0.05 0.045 |
0.045 |
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Q235A Q235B Q235C Q235D |
235 |
24 |
375-460 |
38-47 |
26 |
0.14-0.22 0.12-0.20 ≤0.18 ≤0.17 |
0.30 |
0.30-0.65 0.30-0.70 0.35-0.80 0.35-0.80 |
0.50 0.45 0.40 0.035 |
0.045 0.045 0.040 0.035 |
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16Mn(Q345B) |
345 |
35 |
510-600 |
51.60 |
22 |
0.12-0.20 |
0.20-0.55 |
1.2-1.6 |
0.045 |
0.045 |
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X42 |
289 |
29.5 |
413 |
42.1 |
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0.28 |
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1.25 |
0.03 |
0.03 |
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X52 |
358 |
36.5 |
455 |
46.4 |
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0.30 |
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1.35 |
0.03 |
0.03 |
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X56 |
386 |
39.4 |
489 |
49.9 |
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0.26 |
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1.35 |
0.03 |
0.03 |
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X60 |
413 |
42.1 |
517 |
52.7 |
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0.26 |
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1.35 |
0.03 |
0.03 |
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X65 |
448 |
45.7 |
530 |
54.0 |
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0.26 |
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1.40 |
0.03 |
0.03 |
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X70 |
482 |
49.2 |
565 |
57.6 |
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0.26 |
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1.40 |
0.03 |
0.03 |
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L245 |
245 |
|
415 |
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21 |
0.26 |
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1.15 |
0.03 |
0.03 |
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L290 |
290 |
|
415 |
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21 |
0.28 |
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1.25 |
0.03 |
0.03 |
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L360 |
360 |
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460 |
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19 |
0.3 |
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1.25 |
0.03 |
0.03 |
.
3 Comments
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