20px arial, helvetica, sans-serif; white-space: normal; color: rgb(85,85,85); vertical-align: baseline; border-top: 0px; border-right: 0px; word-spacing: 0px; padding-top: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px\"> 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.

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Outer Dimensions: 19.05mm – 168.3mm

Wall Thickness:2.0mm – 14 mm

Length: max 19000mm

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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.

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JIS G3461 STB340

JIS G3461 STB410

JIS G3461 STB510

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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.

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Heat treatment,Annealed, Normalized, Normalized and Tempered

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Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting

Painting as requested.