JIS G3455 STPG370 Carbon steel pipe

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 350℃. 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

Chemical Composition (%):

Steel grade	Chemical composition,%,max
Steel grade	C	Mn	Si	S	P	Cr	Ni	Cu	V
Carbon steel	0.22	0.65	0.37	0.04	0.035	0.25	0.3	0.3	–
Low alloy steel	0.2	1.65	0.6	0.035	0.033	0.8	0.3	0.3	0.1

Mechanical Properties:

Steel grade	Tensile strength,MPa	Yield strength,MPa	Elongation,%
K34	334	206	24
K38	373	235	22
K42	412	245	21
K50	491	343	20
K52	510	353	20
K55	540	373	20

World standard comparative table

KS		ASTM		JIS		DIN		BS
Grade Number	GRADE	Grade Number	GRADE	Grade Number	GRADE	Grade Number	GRADE	Grade Number	GRADE
D 3562	SPPS 370	A 53	Gr A	G-3454	STPG 370	1626	St 37.0	3601	ERW 360
	SPPS 38	A 135	Gr A		(STPG 38)	1628	St 37.4	778	S 360
						1629	St 37.0		HFS 22
						1630	St 37.4		CDS 22
						17172	StE240.7		ERW 22
	SPPS 410	A 53	Gr B		STPG 410	1626	St 44.0	3601	ERW 360
	SPPS 42	A 135	Gr B		(STPG 42)	1628	St 44.4		S 360
						1629	St 44.0		HFS 27
						1630	St 44.4		CDS 27
						17172	StE290.7		ERW 27

JIS G3455 STPG370 Carbon steel pipe

JIS G3454 Stpg370 Steel Pipes Carbon Steel Pipes