JIS G3454 Steel Pipe

JIS G3454 SMLS Steel Pipes

JIS G3454 is a standard published by the Japanese Industry Standard for carbon steel tubes designed for pressure services. JIS G3454 standard steel pipes manufactured by Pandapipe can withstand temperatures up to 350 ° C and are suitable for high temperature and pressure environments. Support three-party testing, committed to providing customers with high-quality steel pipes.

JIS G3454 Specification

JIS G3454 standard steel tubing has a comprehensive specification. The standard has made corresponding specifications and requirements for the size parameters of the pipe, the selection of raw materials, the manufacturing process, the chemical composition, and the mechanical properties. Pandapipe manufactures tubes in strict accordance with the standard, but also provides you with a wide range of surface finishes, end types, joint methods and other comprehensive specifications.

Standard	JIS G3454
Appilication	Carbon Steel Pipes for Pressure Service
Steel Grade	STPG370(STPG38), STPG410(STPG42)
Manufacturing	Seamless and ERW
OD Range	15A – 350A or over
WT Range	SCH10,SCH20,SCH30,SCH40,SCH60,SCH80
Chemical Composition	–	C	Si	Mn	P	S
	STPG370	≤0.25	≤0.35	0.3-0.9	≤0.04	≤0.04
	STPG410	≤0.30	≤0.35	0.3-1	≤0.04	≤0.04
Mechanical Properties	–	Tensile Strength(Mpa)		Yield Strength(Mpa)
	STPG370	373		216
	STPG410	412		245
Tolerance	–	Tolerance on Diameter		Tolerance on Wall Thickness
	Hot-finished Seamless	≤40A [0.5mm]		Under 4mm	+0.6mm,-0.5mm
		50A≤OD≤125A [1%]		4mm or over	+15%,-12.5%
		150A [1.6mm]
		200A or over [0.8%]
	Cold-finished Seamless and ERW	25A or under [0.3mm]		under 3mm	+/-0.3mm
		32A or over [0.8%]		3mm or over	+/-10%
Required Test	Chemical Analysis	Tensile Test	Flattening Test	Bending Test	Hydrostatic Test of NDT

Steel Grades in JIS G3454

We offer JIS G3454 Carbon Steel Pipes in two steel grades – STPG 410 and STPG 370. STPG 410 is known for its high tensile strength and yield point, making it suitable for high-pressure applications. On the other hand, STPG 370 offers excellent ductility and toughness, making it ideal for use in machinery and automotive parts.

JIS G3454 STPG370

JIS G3454 STPG370 steel pipe has a minimum tensile strength is 370 MPa.

JIS G3454 STPG410

JIS G3454 STPG410 steel pipe has a minimum tensile strength is 410 MPa.

JIS G3454 Dimension Table

Pandapipe offers JIS G3454 steel pipes in a comprehensive range of sizes. Pandapipe offers JIS G3454 steel pipes in a comprehensive range of sizes. Pandapipe offers JIS G3454 steel pipes in a comprehensive range of sizes. On the other hand, there are professional teams that will carry out flexible personalized customization according to the special needs of your project. Carefully calibrate the size of the pipe to ensure the perfect fit of your project.

JIS G3454 Production Tolerance

JIS G3454 production tolerance standards are mainly for Hot-finished seamless steel pipe and Cold-fnished seamless steel pipe and electric resistance welded The steel pipe. The wall thickness and outside diameter of the pipe are carefully calibrated.

Division	Tolerances on outside diameter	Tolerances on wall thickness
Hot-finished seamless steel pipe	40 A or under ±0,5 mm	Under 4 mm + 0.6mm, -0.5mm 4 mm or over + 15%, -12.5%
	50 A or over up to and incl. 125 A ± 1%
	150 A ± 1.6mm
	200 A or over ±0.8%
	For the pipe of nominal size 350 A or over.the tolerances on outside diameter may be determined by the measurement of the length of circumference.In this case, the tolerances shall be±0.5%
Cold-fnished seamless steel pipe and electric resistance welded steel pipe	25 A or under ± 0.3mm	Under 3 mm ±0.3mm 3 mm or over ±10%
	32 A or over ±0.8%
	For the pipe of nominal size 350 A or over.the tolerances on outside diameter may be determined by the measurement of the length of circumference.In this case, the tolerances shall be±0.5%

Chemica & Mechanical Properties of JIS G3454

Chemical Composition of JIS G3454

Pandapipe strictly controls the proportion and content of elements such as carbon, manganese, phosphorus, sulfur and silicon in accordance with the chemical composition requirements of JIS G3454 standard. Ensure the strength, durability and corrosion resistance of the pipes produced.

Chemical Composition Unit:%
Symbol of Grade	C	Si	Mn	P	S
STPG370	0.25 max.	0.35 max.	0.30 to 0.90	0.040 max.	0.040 max.
STPG410	0.30 max.	0.35 max.	0.30 to 1.00	0.040 max.	0.040 max.
Other alloy elements than those given in this table may be added as required.

Mechanical Requirements of JIS G3454

JIS G3454 pipes manufactured by Pandapipe have excellent mechanical properties such as elongation, yield strength and tensile strength. It can ensure that it can withstand stress without deformation and breakage. Optimize the hardness of the pipe and increase its wear resistance, thus extending its service life.

Tensile Strength，Yield Point Or Proof Stress，And Elongation
Symbol of Grade	Tensile StrengthN/mm2	Yield Point or proof N/mm2	Elongation %
			Test pieces No.11 Test pieces No.12	Test pieces No.5	Test pieces No.4
			Parallel to pipe axis	Perpendicular to pipe axis	Parallel to pipe axis	Perpendicular to pipe axis
STPG370	370 min.	215 min.	30 min.	25 min.	28 min.	23 min.
STPG410	410 min.	245 min.	25 min.	20 min.	24 min.	19 min.
NOTE: 1 N/mm2=1 MPa

Application of JIS G3454

Petrochemical industry: JIS G3454 standard carbon steel pipes have excellent high temperature and high pressure resistance, and are used in the pipeline system of petroleum refining plants for oil transportation.
Energy industry: Often used in nuclear energy, electric energy and other industries. For example, JIS G3454 standard carbon steel tubes are used in cooling water systems for nuclear power plants.
Manufacturing: For example, JIS G3454 standard carbon steel pipes are used for the transport of high temperature gases in fertilizer production plants and pharmaceutical factories.