JIS G3461 3462 Boiler and Heat Exchanger Steel Tube
JIS Standards Boiler and Heat Exchanger Steel Tube Standard JIS G3461 JIS G3462 Application It is used for boiler and heat exchanger inside & outside tube. Main Steel Tube Grades STB340, STB410, STB510, STBA12, STBA13, STBA20, STBA22, STBA24 Chemical Composition Standard Steel Grade Chemical Composition % C Si Mn P S Cr Mo JIS G3461 STB340 ≤0.18 ≤0.35 0.30-0.60…
