JIS G3461 Seamless Boiler Tube

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Download :JIS G3461 carbon steel boiler and heat exchanger tube

JIS G3461 Carbon Steel Tubes is used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes and air preheater tubes of the boiler, and heat exchanger tubes,condenser tubes and catalyser tubes used in chemical and petroleum industries. It is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.

Grade:G3461 STB340 (STB35), G3461 STB410(STB42), G3461 STB510 (STB52)

Outer Dimensions: 19.05mm – 168.3mm

Wall Thickness:2.0mm – 14 mm

Length: max 19000mm

Chemical composition of JIS G3461:

Grade	C	Si	Mn	P	S
STB35	0.18Max	0.35Max	0.30~0.60	0.035Max	0.035Max
STB42	0.32Max	0.35Max	0.30~0.60	0.035Max	0.035Max
STB52	0.25Max	0.35Max	1.00~1.50	0.035Max	0.035Max

JIS G3461 tube Mechanical Properties:

Grade	Tensile strength N/mm2 {kgf/mm2}	Yield point N/mm2 {kgf/mm2}	Elongation %
			Outside diameter 20mm or over	Outside diameter 10mm or over to and excl. 10mm	Outside diameter under 10mm
			No. 11/12 test piece	No. 11 test piece	No. 11 test piece
STB340	340{35}min.	175{18} min..	35 min.	30 min	27 min.
STB410	410{42} min.	255{26} min	25 min.	20 min	17 min
STB510	510{52} min.	295{30} min	25 min.	20 min.	17 min