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JIS 3454 Seamless Boiler Tubes STPG370 410 Carbon Seamless Pressure Tube

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JIS 3454 Seamless Boiler Tubes STPG370 410 Carbon Seamless Pressure Tube

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Brand Name :	Joyruns
Model Number :	6mm --137mm
Certification :	ISO9000
Price :	Negotiable
Payment Terms :	TT OR LC
Supply Ability :	5000T PER MONTH
Delivery Time :	30DAYS

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JIS 3454 Seamless Boiler Tubes STPG370 410 Carbon Seamless Pressure Tube

JIS3454 / JIS3455 / JIS3456 / JIS3461

JIS G3454 carbon steel pipes are used for pressure conditions at a limited maximum temperature of 350℃. If you require higher pressure pipes shall consider JIS G 3455 standard. JIS G3454 Steel pipe can be manufactured into seamless steel pipe or electric-resistance welded steel tubes, the purchaser may designate the quality requirements on hot finished or cold finished state.

Specifications:

Grade and 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
JIS G3454	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

mechanical property

Standard	Grade	Tensile strength (Mpa)	Yield strength (Mpa)
Standard	Grade	Tensile strength (Mpa)	Yield strength (Mpa)
JIS G3454	STPG 370	≥215	≥370
JIS G3454	STPG 410	≥245	≥410
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

Tolerances on Outside Diameter and Wall Thickness:

Division	Tolerances on outside diameter	Tolerances on wall thickness
Hot-finished seamless steel pipe	40 A or under 0.5mm	Under 4mm
	50A or over up to and incl. 125 A 1%	+0.6mm -0.5mm 4mm or over +15% -12.5%
	150A 1.6mm
	200A 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-finished seamless steel pipe and electric resistance welded steel pipe	25 A or under 0.3mm	Under 3mm 0.3mm 3mm or over 10%
		Under 3mm 0.3mm 3mm or over 10%

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