China GI PIPE

GI pipe
Coating with 99% zinc
Good properties of Carbon Steel
Widely application pipe
Verified by ISO90

GI pipe
Coating with 99% zinc
Good properties of Carbon Steel
Widely application pipe
Verified by ISO9001-2008,SGS, BV

Galvanized  pipes/ galvanized steel pipes /scaffolding pipes

1) Outer diameter: 19 ~273mm                                                                                           

2) Wall thickness: 1.2~ 9mm                                                                                               

3) Grade: Q195, Q215, Q235, Q345                                                                                      

4) Standards: ASTM-A53A, BS1387-1985, GB/T3091-2001,EN39-2001                     

5) Application:Used for low pressure liquid delivery, such as water, gas, and oil or construction, fencing use .     

A 10 year established steel pipe manufacturer is seeking for global cooperation.With strong technical force and production capacity ,we are confident to provide you the most competitive price and satisfied after-sale service. 

 We can manufacture scaffolding steel tube at the basis of  En39-2001

Type			Outside Dia. of Black /Galvanized Tube						Weight of Black/ Galvanized Tube
	Size		Minimum		Maximum		Wall thickness		Plain ends		Pieces
	NB(mm)	inches	mm	inches	mm	inches	mm	inches	Kg/ft	Kg/meter	Per bundle
3	40	11/2	47.8	1.882	48.8	1.921	3.2	0.126	1.090	3.56	61
4	40	11/2	47.8	1.882	48.8	1.921	4.0	0.157	1.332	4.37	50

1. 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.