Api 5l Gr B

API 5L GR.B is a kind of pipeline steel commonly used in oil and gas industry. The following is its detailed introduction:
standard specification
API 5L is a pipeline specification formulated by api gravity (API), and GR.B is a steel grade in this standard.
chemical composition
PSL1: carbon (C) content ≤0.28%, manganese (Mn) content ≤ 1.20%, phosphorus (P) content ≤0.030% and sulfur (S) content ≤0.030%.
PSL2: carbon (C) content ≤0.24%, manganese (Mn) content ≤ 1.20%, phosphorus (P) content ≤0.025% and sulfur (S) content ≤0.015%.
mechanical property
PSL1: tensile strength ≥415MPa, yield strength ≥ 245MPa.
PSL2: the tensile strength is 415-655MPa, and the yield strength is 245-450MPa.
Product features
High strength: it can bear large pressure and load, and can ensure that the pipeline can resist internal fluid pressure and external environmental pressure in the process of oil and natural gas transportation.
Good plasticity: it is convenient for bending, welding and other processing operations at room temperature, which is conducive to the installation and laying of pipelines.
Corrosion resistance: after special anti-corrosion treatment, it can effectively resist the corrosion of various corrosive media that may exist in oil and natural gas and prolong the service life of pipelines.
High reliability: after strict quality control in the production process, each steel pipe must meet the standard requirements, ensuring the safe and stable operation of the pipeline system.