ASTM A106 Gr.B Pipes
ASTM A106 Gr.B pipes are seamless pipes known for their seamless construction and pressure capabilities.
ASTM A209/A209M Standard Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes.
ASTM A209/A209M specification covers seamless carbon-molybdenum alloy-steel boiler and superheater tubes. As a steel making practice, the steel material shall be killed. The required chemical composition for steel is given. The mechanical property requirements include tensile requirements and hardness requirements. Different test procedure shall be performed on the material presented, one tension test shall be made on a specimen for lots of not more than 50 tubes, one flattening test shall be made on specimens from each end of one finished tube, one flaring test shall be made on specimens from each end of one finished tube, and Brinell or Rockwell hardness tests shall be made from two tubes from each lot.
ASTM A209/A209M is the standard specification for seamless carbon-molybdenum alloy-steel boiler and superheater tubes. These tubes are designed for high-pressure, high-temperature environments, offering superior strength and corrosion resistance, making them ideal for industrial applications such as boilers, superheaters, and heat exchangers.
ASTM A209/A209M tubes offer excellent performance in high-temperature, high-pressure applications, such as boilers, superheaters, and heat exchangers. Their carbon-molybdenum alloy composition ensures strength, durability, and corrosion resistance, making them an ideal solution for industries that operate in extreme conditions.
Based on the search results, it seems that there is no specific "209 material specification" that is widely recognized or referenced. The term "209" appears in various contexts, including aggregate specifications for construction materials, granular backfill, compression tests of metallic materials, and even elevating devices.
Without more specific information or context, it is difficult to provide a definitive answer regarding a "209 material specification." It is recommended to provide additional details or clarify the specific industry or application you are referring to in order to receive a more accurate response.
1.1 This specification2 covers several grades of minimum-wall-thickness, seamless, carbon-molybdenum alloy-steel, boiler and superheater tubes.
1.2 This specification covers tubes 1/2 to 5 in. [12.7 to 127 mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness.
1.3 An optional supplementary requirement is provided and, when desired, shall be so stated in the order.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| Grade | C | Si | Mn | P | S | Mo | Cr |
|---|---|---|---|---|---|---|---|
| ASTM A209 Gr T1 | 0.10-0.20 | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
| ASTM A209 Gr T1a | 0.15-0.25 | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
| ASTM A209 Gr T1b | 0.14max | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
| Grade | Tensile | Yield | Elongation | Hardness |
|---|---|---|---|---|
| Strength (Mpa) | Strength (Mpa) | (%) | (HRB) | |
| ASTM A209 Gr T1 | ≥380 | ≥205 | ≥30 | ≤80 |
| ASTM A209 Gr T1a | ≥365 | ≥195 | ≥30 | ≤81 |
| ASTM A209 Gr T1b | ≥415 | ≥220 | ≥30 | ≤77 |
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