Introduction of ISO 3183 PSL1 L175 Steel Pipe

ISO 3183 is a standard for the delivery conditions of oil and gas pipelines formulated by the International Organization for Standardization. The standard specifies the technical requirements for oil and gas pipelines in detail, including its chemical composition, mechanical properties, manufacturing process, inspection methods and other aspects. Among them, PSL1 is a product specification level in the standard, representing the pipeline steel pipe of standard quality level.
Regarding ISO 3183 PSL1 L175, we can introduce it in detail from the following aspects:

1. Standard Overview
Standard Name: ISO 3183
Product Specification Level: PSL1
Steel Grade: L175
L175 is a steel grade defined in the ISO 3183 standard, which represents the minimum yield strength of the steel pipe of 175MPa (according to the ISO standard, the number after L represents the minimum yield strength in MPa). This steel grade is usually used for oil and gas pipelines with relatively low strength requirements.

2. Technical Requirements
Chemical Composition: ISO 3183 has clear provisions on the chemical composition of steel pipes to ensure that the steel pipes have sufficient strength and toughness. L175 steel grade steel pipes must meet the specific requirements for chemical composition in the standard.
Mechanical properties: including key indicators such as yield strength, tensile strength, and elongation. The yield strength of L175 steel pipes should not be less than 175MPa, and other mechanical properties such as tensile strength and elongation must be met.
Manufacturing process: ISO 3183 also has detailed provisions for the manufacturing process of steel pipes, including quality control requirements for hot rolling, cold working, welding and other processes.

3. Inspection and acceptance
Inspection methods: ISO 3183 specifies a variety of inspection methods to verify whether steel pipes meet the standard requirements. These inspection methods include chemical composition analysis, mechanical properties testing, non-destructive testing, etc.
Acceptance criteria: Steel pipes must pass all specified inspection items and meet the corresponding acceptance criteria before they can be identified as qualified products.

In summary, ISO 3183 PSL1 L175 is a pipeline steel pipe that meets the delivery conditions of oil and gas transmission steel pipes of the International Organization for Standardization, has a standard quality level, and has a minimum yield strength of 175MPa. It is widely used in the field of oil and gas transportation and is of great significance to ensure the safe operation of oil and gas pipelines.