CCS Grade DH36 is a type of shipbuilding steel that conforms to the China Classification Society (CCS) standards. It is commonly used in the construction of ships and offshore structures. Here are some key mechanical and chemical properties of CCS Grade DH36 shipbuilding steel:
1. Mechanical Properties:
- Yield Strength: The minimum yield strength of CCS Grade DH36 shipbuilding steel is 355 MPa (mega pascals).
- Tensile Strength: The ultimate tensile strength of CCS Grade DH36 shipbuilding steel ranges from 490 to 620 MPa.
- Elongation: The average elongation at break for CCS Grade DH36 shipbuilding steel is around 21%.
2. Chemical Composition:
The chemical composition of CCS Grade DH36 shipbuilding steel generally meets the following requirements (percentage by weight):
- Carbon (C): 0.18 max
- Manganese (Mn): 0.90-1.60
- Silicon (Si): 0.10-0.50
- Phosphorus (P): 0.035 max
- Sulfur (S): 0.035 max
- Nickel (Ni): 0.40 max
- Chromium (Cr): 0.20 max
- Molybdenum (Mo): 0.08 max
Note: These values are approximate and may vary slightly depending on specific manufacturing processes and requirements.
It's important to note that shipbuilding steels like CCS Grade DH36 shipbuilding steel are designed to have good weldability, high strength, and excellent toughness to withstand harsh marine environments. They undergo stringent quality control measures to ensure they meet industry standards for reliability and safety.
