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JIS G3461, G3462 Carbon/Alloy steel tubes

Carbon steel/Alloy steel boiler and heat exchanger tubes.

Detailed Description

  • Carbon steel/Alloy steel boiler and heat exchanger tubes.
  • Standard:
    • JIS G3461 Carbon steel boiler and heat exchanger tubes
    • JIS G3462 Alloy steel boiler and heat exchanger tubes
  • Size (mm):
    • Outer Dimensions: 19.05mm ~ 168.3mm
    • Wall Thickness:2.0mm ~ 14 mm
    • Length: max 19000mm
  • Application: 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: G3461(STB340, STB410, STB510), G3462(STBA22, STBA23) .
  • Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers' requirements .
  • Painting: as requested.

Chemical Compositions(%)

Grade C Si Mn P S Cr Mo
STB340 ≤0.18 ≤0.35 0.30-0.60 ≤0.035 ≤0.035 / /
STB410 ≤0.32 ≤0.35 0.30-0.80 ≤0.035 ≤0.035 / /
STB510 ≤0.25 ≤0.35 1.00-1.50 ≤0.035 ≤0.035 / /
STBA22 ≤0.15 ≤0.50 0.30-0.60 ≤0.035 ≤0.035 0.80-1.25 0.45-0.65
STBA23 ≤0.15 0.50-1.00 0.30-0.60 ≤0.030 ≤0.030 1.00-1.50 0.45-0.65

 

Mechanical Properties

Grade Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
STB340 ≥175 ≥340 ≥35
STB410 ≥255 ≥410 ≥25
STB510 ≥295 ≥510 ≥25
STBA22 ≥206 ≥412 ≥30
STBA23 ≥206 ≥412 ≥30

 

Products Photo Gallery

View or download the PDF catalogue of JIS G3461 G3462

 

Related Products

Tubes/pipes for Boilers, Headers and Temperatures Services
Application: construction of boilers, pipelines and equipments for high temperature and pressure services.

 

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