JIS G3456-Huaqiang Industry

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JIS G3456

Applications JIS G3456 high-pressure carbon steel pipes are extensively used for pressure service, high pressure service and high temperature software. They are typically used your past piping higher working pressure and an issue temperature of below 350℃. This high pressure steel pipe is also utilized in boiler, electric power, machinery, gas tank, chemical engineering, offshore and petroleum engineering, etc.

JIS G 3456 Carbon ERW Steel Pipe :

Manufacture:Electric resistance welded pipe

Size: O.D.: 15.0～660mm W.T.: 2～20mm

Grade: STPT370, STPT410

Length: 6M or specified length as required.

Ends: Plain End, Beveled End.

JIS G 3456 Carbon Seamless Steel Pipe:

Manufacture: seamless pipe (hot finished or cold finished)

Size: O.D.: 15.0～660mm W.T.: 2～50mm

Grade: STPT370, STPT410, STPT480

Length: 6M or specified length as required.

Ends: Plain End, Beveled End.

Outer Diameter and Wall Thickness

Type	Allowable Deviation of Outer Diameter		Allowable Deviation of Wall Thickness
Hot-Working Seamless Steel Pipe	＜50 mm	± 0.5 mm	＜ 4 mm ≥ 4mm	± 0.5 mm ±12.5%	≤ 20% of thickness
	≥ 50mm~＜160mm	± 1%
	≥ 160mm~≤ 200 mm	± 1.6 mm
	≥ 200 mm	± 0.8%
	For ≥350 mm ones, we can measure according to the perimeters. Allowable deviation is ± 0.5%.
Cold-Working Steel Seamless Pipe and Electric-Resistance Welded(ERW) Steel Pipe	≤ 40 mm	± 0.03 mm	＜ 2 mm ≥ 2 mm	± 0.2 mm ± 10%	-

CHEMICAL COMPOSITION

Grade	C	Si	Mn	P	S
JIS G3456 STPT370	≤ 0.25	0.10-0.35	0.30-0.90	≤ 0.035	≤ 0.035
JIS G3456 STPT410	≤ 0.30	0.10-0.35	0.30-1.00	≤ 0.035	≤ 0.035
JIS G3456 STPT480	≤ 0.33	0.10-0.35	0.30-1.00	≤ 0.035	≤ 0.035

MECHANICAL PROPERTIES

de	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
JIS G3456 STPT370	≥ 370	≥ 215	≥ 30	≥ 25	≥ 28	≥ 23
JIS G3456 STPT410	≥ 410	≥ 245	≥ 25	≥ 20	≥ 24	≥ 19
JIS G3456 STPT480	≥ 480	≥ 275	≥ 25	≥ 20	≥ 22	≥ 17

Equivalent Designation

KS		ASTM		JIS		DIN		BS
Standard Number	GRADE	Standard Number	GRADE	Standard Number	GRADE	Standard Number	GRADE	Standard Number	GRADE
D 3570	370 SPHT SPHT 38	A 106	Gr A	G-3456	370 STPT STPT 38	17 175	St 35.8	3602	360 HFS CFS 360 ERW 360 CEW 360
	410 SPHT SPHT 42		Gr B		410 STPT STPT 42	17 175	St 45.8	3602	410 HFS CFS 410 ERW 410 CEW 410
	480 SPHT SPHT 49		Gr C		480 STPT STPT 49	–	–	3602	460 HFS CFS 460 ERW 460 CEW 460

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WhatsApp：+8618866350418

Phone.：+8613734466098

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