Carbon steel tee, also known as pipe fitting tee or tee fitting, is a connector used at the branching point of a pipeline to achieve branching of the pipeline system by changing the direction of the fluid. According to the structure, it can be divided into equal diameter tees (with the same port diameter) and reducing tees (with branch pipes having a diameter smaller than the main pipe), with two types of shapes: T-shaped and Y-shaped.
The chemical composition of carbon steel tees is mainly based on carbon steel, with core elements including iron (Fe) and carbon (C), and may also contain small amounts of impurities such as silicon (Si), manganese (Mn), sulfur (S), and phosphorus (P).
Main chemical components
Iron (Fe): a basic metallic element with the highest proportion.
Carbon (C): determines the strength and hardness of steel, with a content typically ranging from 0.05% to 2.1%.
Silicon (Si): As a deoxidizer added, its content generally does not exceed 0.5%.
Manganese (Mn): improves strength and toughness, with a content typically between 0.25% and 0.8%.
Sulfur (S), phosphorus (P): Impurity elements, the content needs to be strictly controlled (such as ordinary carbon steel S ≤ 0.055%, P ≤ 0.045%).
GOST 12820 Steel Plate Flanges
DIN2573 PN6 Plate Flange
GOST 12836 Blind Flange Dimensions PN40 4.0Mpa