JIS G3461 Boiler Tube
JIS G3461 standard mainly specifies the technical requirements and specifications of carbon steel pipes for boilers and heat exchangers. This standard applies to seamless steel pipes used in equipment such as boilers and heat exchangers, usually used to transport high-temperature and high-pressure steam, gas or liquid.
Material | Carbon steel |
Outer diameter | 15.9mm - 139.8mm |
Wall thickness | 2.0mm - 15.7mm |
Length | Usually 4m to 12m, or customized as required |
Using temperature | Suitable for high temperature operation |
JIS G3461 Boiler Tube Chemical Composition
JIS G3461 Boiler Tube Chemical Composition | ||||
C | Si | Mn | P | S |
≤ 0.18 | ≤ 0.35 | 0.30 - 0.80 | ≤ 0.030 | ≤ 0.030 |
Mechanical properties
Tension strength | Yield Strength | Elongation |
≥ 340 MPa | ≥ 175 MPa | ≥ 30% (nominal diameter less than 40mm) |
Boiler tubes in the JIS G3461 standard are mainly used in the following fields:
1. Boiler system: used for the transmission of high-temperature and high-pressure steam, such as industrial boilers and power plant boilers.
2. Heat exchangers: used to conduct heat in heat exchangers and are widely used in chemical, petroleum, pharmaceutical and other fields.
