JIS G3454 Stpg370 Seamless Steel Pipes

• Customization: Available
• Type: Seamless
• Technique: Cold Drawn
• Model NO.: KM-20240809
• Surface Treatment: Varnishing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Machinery Industry, Construction & Decoration
• Section Shape: Round
• Standards: JIS G 3454 JIS G 3455 JIS G 3456
• Grade: Stpg370, Stpg410, Stkm13A, Stkm14A, Sgp, Stk290, S
• Diameter: 21.3mm to 323.9mm
• Thickness: 2~50mm
• Product Usage: for Conveying Oil ,Gas and Other Fluid
• Packaging: in Bundle or Wooden Boxes
• Transport Package: in Bundles or Wooden Boxes
• Specification: 21.3mm to 323.9mm
• Trademark: KINGMETAL
• Origin: China
• HS Code: 7304511090
• Production Capacity: 2000 Tons Per Month

Product Description

JIS G3454 STPG370 Seamless steel pipes
 

JIS G3454 Carbon Steel Pipes for Pressure Service

This japanese Industrial Standard specifies the carbon steel pipes, hereinafter referred to as the "pipes", used for pressure service at an approximate maximunn temperature of 350ºC. The pipes for high pressure sevice shall be in accordance with JIS G 3455. Standard: JIS G 3454  JIS G 3455  JIS G 3456  Japanese Industrial Standard Uses: For conveying oil ,gas and other fluid.

 

Size	21.3mm to 323.9mm
Wall Thickness	2-50mm
Length	max 12000mm
Standard	JIS G3454, JIS G3445, JIS G3452, JIS G3444
Grade	STPG370, STPG410, STKM13A, STKM14A, SGP, STK290, STK400, STK500
Steel grade	STPG 38, STPG 42
Application	Carbon Steel Pipes for Pressure Service

JIS G3454 Carbon Steel Chemical Composition (%):

Standard	Grade	C	Si	Mn	P	S
JIS G3454	STPG 370	≤0.25	≤0.35	0.30-0.90	≤0.040	≤0.040
	STPG 410	≤0.30	≤0.35	0.30-1.00	≤0.040	≤0.040
JIS G3455	STS 370	≤0.25	0.10-0.35	0.30-1.10	≤0.035	≤0.035
	STS410	≤0.30	0.10-0.35	0.30-1.40	≤0.035	≤0.035
	STS480	≤0.33	0.10-0.35	0.30-1.50	≤0.035	≤0.035
JIS G3456	STPT 370	≤0.25	0.10-0.35	0.30-0.90	≤0.035	≤0.035
	STPT 410	≤0.30	0.10-0.35	0.30-1.00	≤0.035	≤0.035
	STPT 480	≤0.33	0.10-0.35	0.30-1.00	≤0.035	≤0.035

JIS G3454 Carbon Steel Mechanical Properties:

 

Standard	Grade	Tensile strength (Mpa)	Yield strength (Mpa)
JIS G 3455	STS 370	≥215	≥370
	STS 410	≥245	≥410
	STS 480	≥275	≥480
JIS G 3456	STPT 370	≥215	≥370
	STPT 410	≥245	≥410
	STPT 480	≥275	≥480

JIS Pipe dimension is slightly different from ASTM Pipes

Nominal size		Outside diameter (mm)	Carbon steel pipes for ordinary piping <SGP> (JIS G3452)	Carbon steel pipes for pressure service <STPG>(JIS G3454)
				Nominal thickness
A	B		Thickness (mm)	Sch10	Sch20	Sch30	Sch40	Sch60	Sch80
6	1/8	10.5	2.0	-	-	-	1.7	2.2	2.4
8	1/4	13.8	2.3	-	-	-	2.2	2.4	3.0
10	3/8	17.3	2.3	-	-	-	2.3	2.8	3.2
15	1/2	21.7	2.8	-	-	-	2.8	3.2	3.7
20	3/4	27.2	2.8	-	-	-	2.9	3.4	3.9
25	1	34.0	3.2	-	-	-	3.4	3.9	4.5
32	1.1/4	42.7	3.5	-	-	-	3.6	4.5	4.9
40	1.1/2	48.6	3.5	-	-	-	3.7	4.5	5.1
50	2	60.5	3.8	-	3.2	-	3.9	4.9	5.5
65	2.1/2	76.3	4.2	-	4.5	-	5.2	6.0	7.0
80	3	89.1	4.2	-	4.5	-	5.5	6.6	7.6
90	3.1/2	101.6	4.2	-	4.5	-	5.7	7.0	8.1
100	4	114.3	4.5	-	4.9	-	6.0	7.1	8.6
125	5	139.8	4.5	-	5.1	-	6.6	8.1	9.5
150	6	165.2	5.0	-	5.5	-	7.1	9.3	11.0
200	8	216.3	5.8	-	6.4	7.0	8.2	10.3	12.7
250	10	267.4	6.6	-	6.4	7.8	9.3	12.7	15.1
300	12	318.5	6.9	-	6.4	8.4	10.3	14.3	17.4
350	14	355.6	7.9	6.4	7.9	9.5	11.1	15.1	19.0
400	16	406.4	7.9	6.4	7.9	9.5	12.7	16.7	21.4

 

Appearance

The JIS G3454 STPG370 Carbon Steel Pipes shall be practically straight, and its both ends shall be at a right angle to its axis.

The inside and outside surfaces of the IS G3454 STPG370 Carbon Steel Pipes shall be well-finished and free form defects that are detrimental to practical use.