Description
ASTM A192 Tube
ASTM A192 is a standard specification developed by ASTM International for seamless carbon steel boiler tubes. These tubes are used in high-pressure service applications, such as boilers, superheaters, and heat exchangers in thermal power plants and industries.
Key Features of ASTM A192:
- Material Type: Seamless carbon steel
- Application: High-pressure boilers and heat exchangers
- Manufacturing Process: Cold-drawn or hot-finished
- Outer Diameter: Typically up to 3 inches (76.2 mm)
- Wall Thickness: Custom as per application
- Standard Number: ASTM A192/A192M
ASTM A192 Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.18 |
| Manganese (Mn) | 0.27 – 0.63 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
ASTM A192 Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa (47 ksi) |
| Yield Strength | ≥ 180 MPa (26 ksi) |
| Elongation | ≥ 35% (for small sizes) |
ASTM A192 Equivalent
| Standard | Equivalent Grade | Description |
|---|---|---|
| DIN (Germany) | St 35.8 / St 45.8 | Seamless carbon steel boiler tube |
| EN (Europe) | P235GH / P265GH | Non-alloy steel for pressure purposes |
| JIS (Japan) | STB340 / STB410 | Carbon steel boiler and heat exchanger tubes |
| BS (UK) | 3601 Grade 3 / 4 | Carbon steel boiler tubes |
| GOST (Russia) | 20 / 20A | Seamless steel pipes for boilers |
| ISO | Fe410 / Fe450 | Carbon steel for pressure vessels |
Testing Requirements
- Hydrostatic Test
- Flattening Test
- Flaring Test
- Hardness Test
- Nondestructive electric test (optional)
Applications
- High-pressure boilers
- Superheaters
- Heat exchangers
- Steam pipelines in power plants and refineries
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