Large diameter seamless steel pipe is a type of seamless steel pipe with a larger diameter ranging from 325mm to 1220mm,a wall thickness of up to 10mm to 200mm,and a typical length of about 12m.This type of steel pipe is mainly used for steel production,and its materials include but are not limited to 10#,20#,35#,45#,16Mn,etc.The production process of large diameter seamless steel pipe mainly includes hot-rolled large diameter seamless steel pipe and hot expansion large diameter seamless steel pipe.The production process of hot expansion seamless steel pipe can thicken the pipes in a short period of time,with low cost and high production efficiency.It can produce non-standard and special types of seamless pipes,which is the development trend in the international pipe rolling field.
Production process
The production process of large diameter seamless steel pipe mainly includes hot-rolled large diameter seamless steel pipe and hot expansion large diameter seamless steel pipe.
Feature
1. With a large diameter and wall thickness, it can withstand enormous pressure and weight, making it perform well in industrial applications that require high pressure and high temperature
2. High production efficiency and low cost, capable of thickening steel pipes in a short period of time, suitable for producing non-standard and special types of seamless pipes, is the development trend in the international pipe rolling field
3. It has good impact toughness and strength, including tensile strength, compressive strength, bending strength, shear strength, etc
4. Can be applied in multiple fields, including but not limited to pipelines for transporting oil, natural gas, coal gas, water, and certain solid materials, as well as building supports, steel structures, pile foundations, etc.
Application
The applications of large diameter seamless steel tube include the petrochemical industry, nature gas industry, coal industry,structural engineering,tap water transportation and high pressure pipelines
Petrochemical industry:Used for transporting crude oil,refined oil,petrochemical raw materials and finished products in pipelines and oilfield pipelines.
Natural gas industry:Suitable for long-distance pipelines on the seabed and land,gas receiving stations and pipelines,as well as gas fields and urban natural gas pipelines.
Coal industry:Used for the transportation of coal,coal water slurry,etc.
