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JIS3454 steel pipe

JIS3454 steel pipe is Japanese standard carbon steel pipe. Used for pressure service at an approximate maximum temperature of 350℃. For conveying oil, gas, and other fluid.
Product type: JIS3454 Seamless steel pipe, JIS3454 welded steel pipe, JIS ERW pipe, JIS 3454 Carbon steel pipes
Materials: STPG370, STPG410 etc.
Standard: JIS3454.
Outer diameter: 1/2”-26” SCH10-SCH80
End: Plain End, Beveled End, Treaded Protected With Plastic Cap

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What is the JIS G3454 steel pipe?

This Japanese Industrial Standard specifies the carbon steel pipes, hereinafter referred to as the “pipes”, used for pressure service at an approximate maximum temperature of 350℃. The pipes for high-pressure service shall be by JIS G3454. Standard: JIS G3454, Japanese Industrial Standard Uses: For conveying oil, gas, and other fluid.

Application of JIS G3454 steel pipe

1. Pressure service

2. High-pressure service and high temperature platform

3. Boiler or electric power

4. Machinery

5. Gas tank

6. Chemical engineering

7. Offshore and oil engineering

Mechanical Properties of JIS G3454 steel pipe

Grade	Tensile Property (N/mm2)	Yield Point or Yield Strength (N/mm2)	Elongation (%)
			NO. 11 Sample; NO. 12 Sample	NO. 5 Sample	NO. 4 Sample
			Longitudinal	Transverse	Longitudinal	Transverse
STPG370	≥ 370	≥ 215	≥ 30	≥ 25	≥ 28	≥ 23
STPG410	≥ 410	≥ 245	≥ 25	≥ 20	≥ 24	≥ 19

Note:

For the carbon steel pipes with the thickness of less than 8 mm, we use NO.12 or NO.5 sample for tensile test. The minimum elongation will be reduced by 1.5% from the table value when the thickness reduces 1 mm. The value obtained will be rounded to an integer value according to JIS Z8401 (a rounding method).

Grade	Sample Shape	Elongation differs according to the wall thickness. (%)
Grade	Sample Shape	＞7-＜8	＞6-＜7	＞5-＜6	＞4-＜5	＞3-＜4	＞2-＜3	＞1-＜2
STPG370	NO.12 Sample	30	28	27	26	24	22	21
STPG370	NO.5 Sample	25	24	22	20	19	18	16
STPG410	NO.12 Sample	25	24	22	20	19	18	16
STPG410	NO.5 Sample	20	18	17	16	14	12	11

Chemical Composition of JIS G3454 steel pipe

Grade	C	Si	Mn	P	S
STPG370	≤ 0.25	≤ 0.35	0.30-0.90	≤ 0.040	≤ 0.040
STPG410	≤ 0.30	≤ 0.35	0.30-1.00	≤ 0.040	≤ 0.040

Allowable Deviation of Outer Diameter and Wall Thickness JIS G3454 steel pipe

Type	Allowable Deviation of Outer Diameter		Allowable Deviation of Wall Thickness
Hot-Working Seamless Steel Tube	≤ 40A	± 0.5 mm	＜ 4 mm	﹢0.6mm 0.5
	≥ 30A ≤ 125A	± 1%
	150A	± 1.6 mm
	≥ 200A	± 0.8%	≥ 4mm	﹢15% ﹣12.5%
	For ≥350A ones, we can measure according to the perimeter. The allowable deviation is ± 0.5%.
Cold-Working Seamless Steel Pipe and Electric-Resistance Welded Steel Pipe	≤ 25A	± 0.03 mm	＜ 3 mm ≥ 3 mm	± 0.3 mm ± 10%
	≥ 32A	± 0.8%
	For ≥350A ones, we can measure according to the perimeter. The allowable deviation is ± 0.5%.

JIS3454 steel pipe quality inspection:

● Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate

● Control quality strictly. The first pass is the quality inspection on the production line,The second pass is full inspection of the production quality .

● We have got internationally recognized certificates, ISO, CE, LR,also support third-party testing, as SGS, BV, etc.

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About Us

Cangzhou Shenlong Pipe Manufacturing Co., Ltd. is a company& supplier& manufacturer& factory specialized in the production, processing and sales of various steel pipes, such as seamless pipe, welded pipe, straight seam steel pipe, spiral welded steel pipe, hot galvanized steel pipe, coating steel pipe, stainless steel pipe, and pipe fittings, the production base is located in Cangzhou.

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