显示标签为“Seamless tubes”的博文。显示所有博文

JIS G3462 boiler tubes

boiler tube, boiler tubes, heat exchanger tubes, JIS G3462, JIS G3462 STB A12, JIS G3462 STB A13, JIS G3462 STB A24, Seamless pipe, Seamless Pipes, seamless steel tubes, Seamless tube, seamless tubes, steel tube

JIS G3462 is a JIS standard refers to alloy steel boiler tubes and heat exchanger tubes. This steel tubes is used in carbon steel pipes for tube heat-exchange inside and outside, such as boiler water steel pipe, superheater tube, condenser tube and more.
However, it is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.

The size range of JIS G3462 boiler tubes(mm):

Outer Dimensions: 19.05mm-168.3mm
Wall Thickness:2.0mm-14 mm
Length: max 19000mm

Application of JIS G346s seamless tubes:

used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superherater tubes, air preheater tubes, etc. of boilers, and heat exchanger industries.
it is not applicable to the steel tubes for heating furnace and those for heat exchangers for low temperature service.

The main products of steel / steel grade:

JIS G3462 STB A12
JIS G3462 STB A13
JIS G3462 STB A24

Corresponding to international standards

ISO 9329-2:1997 Seamless steel tubes for pressure purposes-Technical delivery conditions-Part 2: Unalloyed and alloyed steels with specified elevated temperature properties.
ISO 9330-2:1997 Welded steel tubes for pressure purposes-Technical delivery conditions-Part 2: Electric resistance and induction welded unalloyed and alloyed steel tubes with specified elevated temperature properties.

Delivery Condition:

Heat treatment,Annealed, Normalized, Normalized and Tempered

Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Painting as requested.

Chemical composition of JIS G3462 heat exchanger tubes(%):

Grade	C	Si	Mn	P	S	Cr	Mo
JIS G3462 STB A12	0.10~0.20	0.10~0.50	0.30~0.80	<0 td>	<0 td>	—	0.45~0.65
JIS G3462 STB A13	0.15~0.25	0.10~0.50	0.30~0.80	<0 td>	<0 td>	—	0.45~0.65
JIS G3462 STB A24	<0 td>	<0 td>	0.30~0.60	<0 td>	<0 td>	1.90~2.60	0.87~1.10

Mechanical behavior of JIS G3462 heat exchanger tubes (%):

Grade	tensile strength kgf/mm²{N/mm²}	yield strength kgf/mm²{N/mm²}
JIS G3462 STB A12	<39{382}	<21{206}
JIS G3462 STB A13	<42{412}	<21{206}
JIS G3462 STB A24	<42{412}	<21{206}

Tolerance on Outside Diameter in JIS G3462

O.D.	TOLERANCE ON OUTSIDE DIAMETER
O.D.	HOT ROLLED SEAMLESS PIPES	SEAMLESS PIPES THROUGH QUENCH AND NORMALIZED	COLD DRAWN SEAMLESS PIPES THRONG, THE HOT TREATMENT EXCEPT QUENCH AND NORMALIZED	ELECTRIC WELDED PIPES EXCEPT COLD DRAWN	COLD DRAWN ELECTRIC WELDED PIPES
MM
< td>	+0.4 -0.8	±0.25	±0.10	±0.15	±0.10
<25.40		±0.25	±0.15	±0.20	±0.15
<40-50		±0.25	±0.20	±0.25	±0.20
<50.60		±0.25	±0.25	±0.30	±0.25
<60-80		±0.30	±0.30	±0.40	±0.30
<80.100		±0.40	±0.40	-0.60,+0.40	±0.40
<100-120	+0.4 -1.2	-0.60,+0.40	-0.60,+0.40	-0.80,+0.40	-0.60,+0.40
<120-160	+0.4 -1.2	-0.80,+0.40	-0.80,+0.40	-1.00,+0.40	-0.80,+0.40
<160-200	-1.8,+0.4	-1.20,+0.40	-1.20,+0.40	-1.20,+0.40	-1.20,+0.40
<200	-2.4,+0.4	-1.60,+0.40	-1.60,+0.40	-1.60,+0.40	-1.60,+0.40

Tolerance on Wall Thickness in JIS G3462

WALL THICKNESS (MM)	HOT ROLLED SEAMLESS PIPE		COLD DRAWN SEAMLESS PIPE		ELECTRIC WELDED PIPE
	O.D（MM）		O.D（MM）		O.D（MM）
	< td>	<100	< td>	<40	< td>	<40
	(%)
< td>	-	-	-0,+0.4mm	+22 -0	-0,+0.3mm	+18 0
<2-2.4	-0,+40	-	+20 -,0		+18 -0
<2.4-3.8	-0,+35	-0,+35
<3.8-4.6	-0,+23	-0,+33
<4.6	-0,+28	-0,+28

Tolerance on the Length in JIS G3462

ITEM		TOLERANCE AN LENGTH
OD<50mm td>	<7m td>	-0, +7mm
	<=7m	Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD<=50mm	<7m td>	-0, +10mm
	<=7m	Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD: Outside Diameter

JIS G3455 Seamless tubes for high pressure service

carbon steel pipe, carbon steel pipes, JIS G3455, JIS G3455 STS370, JIS G3455 STS410, JIS G3455 STS480, seamless tubes

JIS G3455 Carbon steel pipes for high pressure service at an approximate maximum temperature of 350^oC.

Standard:

JIS G3454

JIS, Japanese Industrial Standards specifies the standards used for industrial activities in Japan.

Size range of JIS G3454 (mm):

Outer Dimensions: 19.05mm- 114.3mm
Wall Thickness:2.0mm -14 mm
Length: max 16000mm

Application:

Carbon steel pipes for pressure service
High pressure service and high temperature service

Packing:

Be packed in Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
Surface: Varnish coating
Ends: Beveled or Plain ends with Plastic caps
Painting: as requested.

Inspection & Certification:

1) Certification: ISO, API, ASTM, DIN etc.
2) Mill Test Certificate: EN10204/3.1B
3) Third party inspection: SGS, BV, Lloyds etc.

The main products of steel / steel grade:

JIS G3455 STS370
JIS G3455 STS410
JIS G3455 STS480

Chemical Compositions(%) of JIS G3455

Standard / Grade	C	Si	Mn	P	S
JIS G3455 STS370	≤0.25	0.10-0.35	0.30-1.10	≤0.035	≤0.035
JIS G3455 STS410	≤0.30	0.10-0.35	0.30-1.40	≤0.035	≤0.035
JIS G3455 STS480	≤0.33	0.10-0.35	0.30-1.50	≤0.035	≤0.035

Mechanical Properties of JIS G3455

Standard / Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
JIS G3455 STS370	≥216	≥370	≥30
JIS G3455 STS410	≥245	≥410	≥25
JIS G3455 STS480	≥275	≥480	≥25

Tolerance on Outside Diameter and Wall Thickness in JIS G3455

APPLICATION	TOLERANCE ON OUTSIDE DIAMETER		TOLERANCE ON WALL THICKNESS
Hot Rolled Seamless Pipes	< mmtd>	±0.5mm	< mmtd>	±0.5mm
	<50-160mm	±1%	< mmtd>	±0.5mm
	<160-200mm	±1.6mm	<4mm	±12.5%
	<200mm	±0.8%
	More that 350mm, the Tolerance is ±0.5%
Cold Drawn Seamless Pipes and Electric Resistant Welded Pipes	< mmtd>	±0.3mm	< mmtd>	±0.2mm
	<40mm	±0.8%	<2mm	±10%
	More than 350 mm the Tolerance is ±0.5%		<2mm	±10%

JIS G3461 Carbon Steel Boiler and Heat Exchanger Tubes

JIS Carbon Steel Boiler and Heat Exchanger Tubes

JIS G3461 is a JIS standard refers to boiler tubes,heat exchanger tubes, condenser tubes etc. This steel pipe is used in carbon steel pipes for tube heat-exchange inside and outside, such as boiler water steel pipe, superheater tube, condenser tube and more.

However, it is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.

The size range of JIS G3461 boiler tube(mm):

Outer Dimensions: 19.05mm-168.3mm
Wall Thickness:2.0mm- 14 mm
Length: max 19000mm

Application of JIS G3461 seamless tubes:

used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superherater tubes, air preheater tubes, etc. of boilers, and heat exchanger industries.
it is not applicable to the steel tubes for heating furnace and those for heat exchangers for low temperature service.

The main products of steel / steel grade:

JIS G3461 STB340
JIS G3461 STB410
JIS G3461 STB510

JIS G3461 tube Chemical Compositions(%)

Grade	C	Si	Mn	P	S	Cr	Mo
G3461 STB340	≤0.18	≤0.35	0.30-0.60	≤0.035	≤0.035	/	/
G3461 STB410	≤0.32	≤0.35	0.30-0.80	≤0.035	≤0.035	/	/
G3461 STB510	≤0.25	≤0.35	1.00-1.50	≤0.035	≤0.035	/	/

JIS G3461 tube Mechanical Properties

Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
G3461 STB340	≥175	≥340	≥35
G3461 STB410	≥255	≥410	≥25
G3461 STB510	≥295	≥510	≥25