CCS Grade DH36 is a type of shipbuilding steel that is certified by the China Classification Society (CCS). Here are its key features and composition:
Key Features:
1. High strength: CCS Grade DH36 has a minimum yield strength of 355 MPa (megapascals) and a tensile strength of 490-620 MPa, making it suitable for use in high-stress applications.
2. Good toughness: It exhibits good toughness and impact resistance, enabling it to withstand harsh marine environments.
3. Weldability: CCS Grade DH36 can be easily welded using common welding methods, such as arc welding, gas welding, and resistance welding.
4. Corrosion resistance: It offers good resistance to corrosion from seawater and other aggressive media found in marine environments.
5. Low temperature performance: This steel grade maintains its mechanical properties even at low temperatures, which is important for shipbuilding in cold regions.
Composition (%):
The composition of CCS Grade DH36 shipbuilding steel typically includes the following elements:
- Carbon (C): 0.18%
- Manganese (Mn): 0.90-1.60%
- Silicon (Si): 0.10-0.50%
- Phosphorus (P): 0.035%
- Sulfur (S): 0.035%
- Nickel (Ni): 0.40%
- Chromium (Cr): 0.20%
- Molybdenum (Mo): 0.08%
- Vanadium (V): 0.05%
- Aluminum (Al): 0.015%
- Nitrogen (N): 0.009%
Please note that these composition values may slightly vary depending on the specific production requirements and manufacturer specifications.
