What is SA192 Tube?
ASME SA192 is a specification for seamless carbon steel boiler tubes for high-pressure applications. This specification is suitable for water walls and steam sections in large boilers. SA192 tubes have low carbon levels. This specific chemistry helps them perform in boiler operating conditions. The tubes handle high internal pressure from steam and water while exposed to external combustion heat. Strength for high-pressure service is achieved from the minimum wall thickness. We put every tube through hydrostatic and flattening tests and dimensional checks are conducted too. This ensures consistent quality for critical boiler applications.
ASME SA192 Tube Specifications
The table given below defines the requirements for seamless carbon steel boiler tubes:
| Feature | Detail |
|---|---|
| Standard | ASTM A192 / ASME SA192 |
| OD Range | 12.7mm to 127mm |
| Wall Thickness | MWT (Minimum Wall Thickness) |
| Manufacture | Seamless; hot-finished or cold-finished |
| End Type | Plain or beveled |
Chemical Composition of ASME SA192 Tubes
The chemical composition of SA192 tubes ensures reliable performance in high-pressure boiler service while maintaining adequate weldability. The chemical composition is detailed in the table below:
| Element | % |
|---|---|
| Carbon (C) | 0.06 - 0.18% |
| Manganese (Mn) | 0.27 - 0.63% |
| Phosphorus (P) | 0.035% max |
| Sulphur (S) | 0.035% max |
Mechanical Properties of ASME SA192 Tubes
SA192 tubes meet the mechanical property requirements suited for high-pressure boiler applications:
| Property | Value |
|---|---|
| Tensile Strength | 325 MPa (47,000 psi) minimum |
| Yield Strength | 180 MPa (26,000 psi) minimum |
| Elongation | 35% minimum in 2 inches |
| Hardness | 72 HRB maximum |
SA192 vs SA179
SA192 and SA179 are both specifications for low-carbon steel tubes, but they are used for different applications. Knowing what makes them different can help you choose the right tube for your needs.
| Property | SA179 | SA192 |
|---|---|---|
| Application | Heat exchangers, any | High-pressure boiler |
| Testing | Standard testing | More rigorous testing requirements |
| Service | General heat transfer | Boiler water walls, economizers |
Choose SA179 for general heat exchanger service. Select SA192 when tubes will operate in high-pressure boiler environments where rigorous quality assurance is required.
Applications
ASTM A192 tube is essential for steam generation equipment. The tubes perform in high-pressure, high-temperature environments where reliability is essential.