16MnDG

16MnDG is a type of Chinese steel that is used for pressure vessels and boilers.

16MnDG is made up of a combination of 16% manganese, 0.8% -1.6% silicon, 0.60% - 0.90% carbon, 0.035% phosphorus, 0.035% sulfur, and less than 0.25% of other elements. The "DG" in the name stands for "low temperature impact resistance," indicating that this steel has been specifically designed to withstand impact at low temperatures.

The chemical composition of 16MnDG may vary slightly depending on the manufacturer or supplier. However, the following are the typical chemical composition ranges:

• Carbon (C): 0.14%-0.20%
• Silicon (Si): 0.20%-0.55%
• Manganese (Mn): 1.20%-1.60%
• Phosphorus (P): ≤0.025%
• Sulfur (S): ≤0.015%
• Chromium (Cr): ≤0.30%
• Nickel (Ni): ≤0.30%
• Copper (Cu): ≤0.30%
• Titanium (Ti): ≤0.20%
• Vanadium (V): ≤0.10%

Note that the exact composition of 16MnDG may vary depending on the specific requirements or standards of the application. It is important to consult the manufacturer or supplier for detailed information about the chemical composition, mechanical properties, and other specifications of this material.

16MnDG steel pipe is a low-temperature steel pipe. 16MnDG steel pipe is suitable for -45℃～195℃ low-temperature pressure vessel pipes and low-temperature heat exchanger pipes. 16MnDG steel pipe has good comprehensive mechanical properties and process properties. The content of phosphorus is slightly lower than that of common 16Mn steel. In addition to the requirement of higher tensile strength and elongation than common 16Mn steel, impact toughness is also required.