JIS G3452 carbon steel pipe

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JIS G3452 Carbon Steel Pipe

JIS G3452 specifies the requirements for carbon steel pipes used in common piping applications. We offer JIS G 3452 Carbon Steel Pipes in SGP grade. SGP is a commonly used material in the construction of such pipelines.

These pipes are primarily used to transport a variety of fluids including steam, water, oil, gas, and air at relatively low working pressures.

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JIS G3452 Specification

Standard	JIS G 3452
Procedure	SMLS
Dimensions	10.5mm – 508mm
Dimensions	1/8″ – 20″
	DN6 – DN500
Thickness	1.7mm – 7.9mm
Thickness	SCH 10 – SCH 40
Unit Length	6 meters, 12 meters or customized.
Steel Grade	JIS G 3452 SGP
Surface Coating	Black, Hot Dip Galvanizing
End Type	Square cut, Bevelled, Threaded, Grooved
Joint Method	Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

JIS G3452 Dimension

Permissible Specified Outside Diameter and Specified Wall Thickness
Specified Outside Diameter D mm (in.)	Specified Wall Thickness t mm (in.)
Specified Outside Diameter D mm (in.)	Special Light Sizes a	Regular Sizes
≥ 10.3 (0.405) to < 13.7 (0.540)	—	≥ 1.7 (0.068) to ≤ 2.4 (0.094)
≥ 13.7 (0.540) to < 17.1 (0.675)	—	≥ 2.2 (0.088) to ≤ 3.0 (0.118)
≥ 17.1 (0.675) to < 21.3 (0.840)	—	≥ 2.3 (0.091) to ≤ 3.2 (0.125)
≥ 21.3 (0.840) to < 26.7 (1.050)	—	≥ 2.1 (0.083) to ≤ 7.5 (0.294)
≥ 26.7 (1.050) to < 33.4 (1.315)	—	≥ 2.1 (0.083) to ≤ 7.8 (0.308)
≥ 33.4 (1.315) to < 48.3 (1.900)	—	≥ 2.1 (0.083) to ≤ 10.0 (0.394)
≥ 48.3 (1.900) to < 60.3 (2.375)	—	≥ 2.1 (0.083) to ≤ 12.5 (0.492)
≥ 60.3 (2.375) to < 73.0 (2.875)	≥ 2.1 (0.083) to ≤ 3.6 (0.141)	> 3.6 (0.141) to ≤ 14.2 (0.559)
≥ 73.0 (2.875) to < 88.9 (3.500)	≥ 2.1 (0.083) to ≤ 3.6 (0.141)	> 3.6 (0.141) to ≤ 20.0 (0.787)
≥ 88.9 (3.500) to < 101.6 (4.000)	≥ 2.1 (0.083) to ≤ 4.0 (0.156)	> 4.0 (0.156) to ≤ 22.0 (0.866)
≥ 101.6 (4.000) to < 168.3 (6.625)	≥ 2.1 (0.083) to ≤ 4.0 (0.156)	> 4.0 (0.156) to ≤ 25.0 (0.984)
≥ 168.3 (6.625) to < 219.1 (8.625)	≥ 2.1 (0.083) to ≤ 4.0 (0.156)	> 4.0 (0.156) to ≤ 40.0 (1.575)
≥ 219.1 (8.625) to < 273.1 (10.750)	≥ 3.2 (0.125) to ≤ 4.0 (0.156)	> 4.0 (0.156) to ≤ 40.0 (1.575)
≥ 273.1 (10.750) to < 323.9 (12.750)	≥ 3.6 (0.141) to ≤ 5.2 (0.203)	> 5.2 (0.203) to ≤ 45.0 (1.771)
≥ 323.9 (12.750) to < 355.6 (14.000)	≥ 4.0 (0.156) to ≤ 5.6 (0.219)	> 5.6 (0.219) to ≤ 45.0 (1.771)
≥ 355.6 (14.000) to < 457 (18.000)	≥ 4.5 (0.177) to ≤ 7.1 (0.281)	> 7.1 (0.281) to ≤ 45.0 (1.771)
≥ 457 (18.000) to < 559 (22.000)	≥ 4.8 (0.188) to ≤ 7.1 (0.281)	> 7.1 (0.281) to ≤ 45.0 (1.771)
≥ 559 (22.000) to < 711 (28.000)	≥ 5.6 (0.219) to ≤ 7.1 (0.281)	> 7.1 (0.281) to ≤ 45.0 (1.771)
≥ 711 (28.000) to < 864 (34.000)	≥ 5.6 (0.219) to ≤ 7.1 (0.281)	> 7.1 (0.281) to ≤ 52.0 (2.050)
≥ 864 (34.000) to < 965 (38.000)	—	≥ 5.6 (0.219) to ≤ 52.0 (2.050)
≥ 965 (38.000) to < 1422 (56.000)	—	≥ 6.4 (0.250) to ≤ 52.0 (2.050)
≥ 1422 (56.000) to < 1829 (72.000)	—	≥ 9.5 (0.375) to ≤ 52.0 (2.050)
≥ 1829 (72.000) to < 2134 (84.000)	—	≥ 10.3 (0.406) to ≤ 52.0 (2.050)
NOTE Standardized values for specified outside diameter and specified wall thickness of pipe are given in ISO 4200 [7] and ASME B36.10M[8]
a Pipe having the combination of specified outside diameter and specified wall thickness is defined as special light size pipe; other combinations given in this table are defined as regular size pipe.

Chemical Requirement

Designation of Grade	P	S
SGP	0.040 max.	0.040 max.

Mechanical Requirement

Tensile Strength And Elongation
Designation of Symbol	Tensile Strength N/mm2	Elongation %
		Tensile Test Piece	Tensile Test Direction	Wall Thickness
		Tensile Test Piece	Tensile Test Direction	Over 3mm up to and incl.4mm	Over 4mm up to and incl.5mm	Over 5mm up to and incl.6mm	Over 6mm up to and incl.7mm	Over 7mm up to and incl.8mm
SGP	290 min.	No.11 Test Piece	Parallel to the pipe axis	30 min.	30 min.	30 min.	30 min.	30 min.


		No.12 Test Piece	Parallel to the pipe axis	24 min.	26 min.	27 min.	28 min.	30 min.


		No.5 Test Piece	Perpendicular to the pipe axis	19 min.	20 min.	22 min.	24 min.	25 min.


NOTE: 1 N/mm2 =1 MPa

JIS G3452 pipe manufacturing method

According to JIS G3452, the process of manufacturing carbon steel pipes is as follows:

The pipes are mainly manufactured by resistance welding or butt welding. After manufacturing, the pipes are usually delivered in the manufactured state.
The cold-worked pipes need to be annealed after manufacturing. The purpose of this is to release the stress generated during the manufacturing process and improve the ductility and toughness of the pipes.
The ends of the pipes can be threaded or plain. For pipes with a nominal diameter of 350A and above, plain ends are usually used. For pipes with a nominal diameter of 300A and below, threaded or plain ends can be selected. Beveled ends can also be selected if the buyer has special requirements.
If a threaded end is selected, a tapered thread needs to be manufactured in accordance with JIS B 0203. One end of the thread needs to be screwed into a sleeve that complies with JIS B 2301 or JIS B 2302. For the end that is not screwed into the sleeve, a thread protection ring or other appropriate protection method is required.
Before threading the pipes and sockets, galvanizing is required. Galvanizing protects the metal from corrosion and prolongs its service life. The zinc used for galvanizing should be grade 1 distilled zinc ingot specified in JIS H 2107 or at least equivalent. Other general matters of galvanizing should be carried out in accordance with JIS H 8641.
Before galvanizing, the pipes and sockets need to be sandblasted, pickled, etc. This can ensure the adhesion of the galvanized layer and make the pipes more corrosion-resistant.