| A106 Grade B | Seamless carbon steel pipe for high-temperature service. | Oil and gas pipelines, pressure vessels. | Good high-temperature resistance. | Limited to high-temperature applications. |
| A53 Grade B | Black or hot-dipped galvanized seamless steel pipe. | Structural steel applications, plumbing. | Versatile and widely used. | Corrosion concerns if not galvanized. |
| A500 Grade C | Structural pipe suitable for welded or seamless applications. | Building frames, poles, and fences. | High strength and easy to weld. | Not suitable for high-temperature service. |
| A106 Grade C | Seamless carbon pipe for higher temperatures than Grade B. | Power plants, chemical plants. | Excellent high-temperature performance. | Higher cost compared to lower grades. |
| A252 Grade 3 | Pipe intended for piling applications. | Foundation support, marine applications. | High durability and impact resistance. | Usually not used for other applications. |