1. **Is P235GH carbon steel?**
Yes, P235GH is a carbon steel. Specifically, it is a non-alloy quality steel designed for pressure vessel applications. The "P" stands for pressure purposes, and it is classified under the European EN 10028-2 standard.
2. **What is S235JR steel?**
S235JR is a non-alloy structural carbon steel grade according to the European EN 10025-2 standard. The "S" stands for structural steel, "235" indicates a minimum yield strength of 235 MPa, and "JR" designates that it has a minimum Charpy V-notch impact energy of 27 Joules at room temperature (+20°C).
3. **What is P295GH equivalent to ASTM material?**
The European material P295GH (from EN 10028-2) is most closely equivalent to **ASTM A516 Grade 70** in the ASTM standard. Both are carbon steel plates for pressure vessels with similar mechanical properties and chemical composition.
4. **What is ss316 as per ASTM?**
SS316 (Stainless Steel 316) is most commonly specified under the ASTM A240 standard for chromium and chromium-nickel stainless steel plate, sheet, and strip. Therefore, its standard ASTM designation is **ASTM A240/A240M Type 316**. It is an austenitic stainless steel known for its excellent corrosion resistance, particularly to chlorides and acids, due to the addition of molybdenum.
5. **What is API 2H GR 50 material?**
API 2H Grade 50 is a carbon manganese steel plate specification from the American Petroleum Institute (API) for offshore structures. It is a high-strength, low-alloy (HSLA) steel with a minimum yield strength of 50 ksi (345 MPa). A common equivalent material in the ASTM standard is **ASTM A572 Grade 50**.
