US $650.0015 - 8,000 ton
Paramtents
Technique ERW
Grade 16Mn, A53-A369, ST35-ST52, Q195-Q345
Thickness 0.75 - 8 mm
Outer Diameter 21.3 - 273.1 mm
OD 21.3-273.1mm
Application Fluid Pipe
Packging & Delivery
Min Order15 ton
Briefing
Detailed
GI pipe
thickness: 0.75-8mm
meterial standard GB700-88
color: off white
alloy or not: non
Apply field: Water/Oil/Gas/furniture pipe/scaffolding pipe
price competitive price
.
TOLERANCE | ||||||||
:a) On Specified OD + 0.5mm (Ovality 0.5mm) | ||||||||
:b) The Inside Diameter of ubes shall allow insertion of a guage of 37.7mm dia for a minimum length of 200mm. | ||||||||
:c) On Wall thickness -10% | ||||||||
:d) The mass deviation on a single tube shall not exceed -7.5% of the specified mass. | ||||||||
2. ENDS | ||||||||
: Cut cleanly and nominally square with the axis of the tube and free from excessive burrs | ||||||||
3. PROPERTIES | ||||||||
:a) Chemical (Maximum) C - 0.20%, SI - 0.05%, MN - 1.40%, P - 0.04%, S - 0.045%, AL - Min. 0.02%. | ||||||||
:b) Mechanical = UTS - 340 to 520 N/mm2, YS - 235 N/mm2 (minimum) & %Elongation on 5.65 S0 - 24% (minimum). | ||||||||
4. FLATTENING TEST WELD AT 90 DEGREES (COLD) | ||||||||
a) For weld : Distance between the platens, measured under load is not greater than 75% of the OD of tube. | ||||||||
b) For Material :Distance Between the platens, measured under load is not greater than 60% of the OD of tube. | ||||||||
5. STRAIGHTNESS | ||||||||
: 1 in 500 (In 1 meter it should not exceed 3mm). | ||||||||
6. ZINC COATING | ||||||||
: Minimum local coating thickness on the outside surface 40 microns. | ||||||||
(GALVANIZING) | ||||||||
7. MARKING | ||||||||
: a) We can emboss mill sign "EN 39 UTP 3 or 4." online at every one meter interval over the length of pipe. | ||||||||
b) We can do online stencilling as per customer needs. | ||||||||
8. PACKING | ||||||||
: Hexagonal type. | ||||||||
9. MILL TEST CERTIFICATE | ||||||||
:We can issue a MTC, certifying that the tubes supplied comply with this Standard. |
Hot Dipped Galvanized Steel Pipe Proceed Flow Chart
ND | OD | WT | weight factor | |
MM | MM | MM | ordinary steel pipe | heavy steel pipe |
6 | 10.0 | 2 | 1.064 | 1.059 |
8 | 13.5 | 2.75 | 1.056 | 1.046 |
10 | 17.0 | 3.50 | 1.056 | 1.046 |
15 | 21.3 | 3.15 | 1.047 | 1.039 |
20 | 26.8 | 3.40 | 1.046 | 1.039 |
25 | 33.5 | 4.25 | 1.039 | 1.032 |
32 | 42.3 | 5.15 | 1.039 | 1.032 |
40 | 48.0 | 4.00 | 1.036 | 1.030 |
50 | 60.0 | 5.00 | 1.036 | 1.028 |
65 | 75.5 | 5.25 | 1.034 | 1.028 |
80 | 88.5 | 4.25 | 1.032 | 1.027 |
100 | 114.0 | 7.00 | 1.032 | 1.026 |
125 | 140.0 | 7.50 | 1.028 | 1.023 |
150 | 165.0 | 7.50 | 1.028 | 1.023 |
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