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L80-13Cr is a type of steel used for oil well pipes, belonging to martensitic stainless steel. It has good resistance to carbon dioxide and seawater corrosion and is widely used in offshore oil and gas extraction.

Ingredients and characteristics

The main components of L80-13Cr include carbon (C), chromium (Cr), nickel (Ni), iron (Fe), manganese (Mn), silicon (Si), copper (Cu), phosphorus (P), sulfur (S), etc. The chemical composition requirements are as follows:

Carbon (C): 0.15-0.22%

Chromium (Cr): 12-14%

Nickel (Ni): ≤ 0.5%

Iron (Fe): Excess

Manganese (Mn): 0.25-1%

Silicon (Si): ≤ 1%

Copper (Cu): ≤ 0.25%

Phosphorus (P): ≤ 0.02%

Sulfur (S): ≤ 0.01%

L80-13Cr has excellent resistance to carbon dioxide corrosion and seawater corrosion, which makes it perform well in humid carbon dioxide environments and become a commonly used steel in offshore oil and gas extraction. In addition, it also has good mechanical properties, such as a yield strength of 80 ksi, a tensile strength of 95 ksi, an elongation of 95%, and a hardness of 23 HRC.

application area 

L80-13Cr is widely used in the petroleum and natural gas industry, especially in the following fields:

Oil well tubing

bushing

Pipeline

Base pipe is used for sand control screen pipe

Expandable tube

Landing joint

Extension tube

Shield

Manufacturing connectors

Vertical wellbore isolation pipe