JIS G3462 Alloy Boiler Steel Tube

About JIS G3462 Steel Tube

OD: 6mm-760mm
WT: 1mm-60mm
Length: 5-12m or as required
Application: Boiler pipe, super heater tube, heat exchanger tube.
Supplementary Technology: plastic pipe cap, hot rolled or cold drawn, tension test, hardness test, flattening test, hydrostatic test,
Surface: Bared or painted, galvanized or with oiled or client option.
Delivery state: Hot Rolled, Cold Drawn
Steel Grade: STBA 12, STBA 13, STBA 20, STBA 22, STBA 23, STBA 24, STBA 25

Product Scope:

JIS G3462 specifies the alloy boiler steel tubes used for exchanging heat on the inside and outside of the tube, with 8 steel grades from STBA12-STBA26, it has the similar application as JIS G3461, steel tube of this specification could be supplied as U tube. However, it is not applicable to the steel tubes for heating furnace and those for heat exchangers of low temperature service. For final product, heat treatment of the bent portion is not usually performed. However, if there is a request from the orderer, agreement on heat treatment. ANSON is an experienced boiler and pressure steel tube supplier which can offer you JIS G3462 steel tube of all grade and dimension range.

JIS G3462 Chemical Composition:

JIS G3462 Grade	C≤	Si≤	Mn≤	P≤	S≤	Cr	Mo
STBA 12	0.10 ~0.20	0.10~0.50	0.30~0.80	0.035	0.035	-	0.45~0.65
STBA 13	0.15~0.25	0.10~0.50	0.30~0.80	0.035	0.035	-	0.45~0.65
STBA 20	0.10 ~0.20	0.10~0.50	0.30~0.60	0.035	0.035	0.050~0.080	0.45~0.65
STBA 22	0.15	0.50	0.30~0.60	0.035	0.035	0.80~1.25	0.45~0.65
STBA 23	0.15	0.50~1.00	0.30~0.60	0.030	0.030	1.00~1.50	0.45~0.65
STBA 24	0.15	0.50	0.30~0.60	0.030	0.030	1.90~2.60	0.87~1.13
STBA 25	0.15	0.50	0.30~0.60	0.030	0.030	4.00~6.00	0.45~0.65
STBA 26	0.15	0.25~1.00	0.30~0.60	0.030	0.030	8.00~10.00	0.90~1.10

JIS G3462 Mechanical Property:

JIS G3462 Grade	Tensile Property (N/mm2)	Yield Point or Yield Strength (N/mm2)	Elongation (%)
			OD ≥ 20 mm	10 mm ≤ OD ＜20 mm	OD ＜10 mm
			NO. 12 Sample	NO. 11 Sample	NO. 11 Sample
			Longitudinal	Transverse	Transverse
STBA12	≥ 382	≥ 206	≥ 30	≥ 25	≥ 22
STBA13	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA20	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA22	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA23	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA24	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA25	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22
STBA26	≥ 412	≥ 206	≥ 30	≥ 25	≥ 22

JIS G3462 Equivalent Steel Grade:

KS		ASTM		JIS		DIN		BS
Grade number	GRADE	Grade number	GRADE	Grade number	GRADE	Grade number	GRADE	Grade number
D 3572	STHA12	A161 A209	T1 T1	G 3462	STBA12	17175	15Mo 3	-
STHA13	A209	T1a	STBA13		-	-	-	-
STHA20	A213	T2	STBA20		-	-	-	-
STHA22	A213	T12	STBA22		17175	13Cr Mo 44	3059	S1 620 S2 620 ERW620 CEW620
STHA23	A199 A200 A213	T11 T11 T11	STBA23		-	-	-	-
STHA24	A199 A200 A213	T22 T22 T22	STBA24		17175	10Cr Mo910	3059	S1 622-440 S2 622-440
STHA25	A199 A200 A210	T5 T5 T5	STBA25		-	-	-	-
STHA26	A199 A200 A213	T9 T9 T9	STBA26		-	-	-	-

ANSON can supply JIS G3462 steel tube from stock or from reputed steel mills. We also offer steel fabrication service where steel plates can go through processings like cutting, welding, bending, machining, pre-coating, pre-lined, beveling, or as you require. Our steel mills have fabricating employees that have 5-10 years of working experience. If you are interested in buying JIS G3462 steel tube products, contact us now for the latest price or check the following table for equivalent steel grade of JIS G3462.

JIS G3462 Heat treatment:

Symbol of class	JIS G3462 Heat treatment
STBA 12 STBA 13	Low temperature annealing, isothermal annealing, full annealing, normalizing or normalizing followed by tempering
STBA 20 STBA 22	Low temperature annealing, isothermal annealing, full annealing, normalizing or normalizing followed by tempering
STBA 23 STBA 24 STBA 25 STBA 26	Isothermal annealing, full annealing or normalizing followed by tempering

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