P235GH is a European standard pressure vessel steel grade that is similar to other steel grades with elevated temperature properties, such as ASTM A516 Grade 60 and ASME SA516 Grade 60. Here are some of the differences between P235GH and other similar steels:
1. Chemical composition: P235GH has a different chemical composition compared to other similar steels. For example, ASTM A516 Grade 60 and ASME SA516 Grade 60 contain higher amounts of carbon and manganese, which provide greater strength and toughness.
2. Yield strength: The minimum yield strength of P235GH is 235 MPa, while the minimum yield strength of ASTM A516 Grade 60 and ASME SA516 Grade 60 is 220 MPa. This means that P235GH has a slightly higher yield strength than the other two steel grades.
3. Heat treatment: The heat treatment process for P235GH is different from that of other similar steels. P235GH is typically normalized, while ASTM A516 Grade 60 and ASME SA516 Grade 60 are typically normalized and tempered.
4. Application: P235GH is primarily used in Europe, while ASTM A516 Grade 60 and ASME SA516 Grade 60 are used more widely in the United States and other countries. P235GH is commonly used in the fabrication of boilers, pressure vessels, and heat exchangers, while ASTM A516 Grade 60 and ASME SA516 Grade 60 are used in a wide range of applications, including oil and gas, chemical processing, and power generation.
Overall, while these steel grades have some similarities, they also have some differences in their chemical composition, properties, and applications. The choice of which steel grade to use depends on factors such as the specific application, the required properties, and the manufacturing standards and regulations.
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