Press Releases from Permanent Steel Manufacturing Co.,Ltd (38 total)
Seamless Pipes for Energy Equipment
Seamless pipes play an extremely important role in energy equipment, especially in systems that need to withstand harsh working conditions such as high temperature, high…
Can Galvanized Steel Pipes be Painted?
Galvanized steel pipe is a common metal pipe, which is widely used in construction, water supply, HVAC and other fields due to its excellent anti-corrosion…
How to Remove Weld Spots from 304 Stainless Steel Pipes?
Welded pipes are made by welding, and the welds of 304 stainless steel pipes will leave more or less orange, blue, and black weld spots…
How to Store Stainless Steel Elbows？
Stainless steel elbows are elbows made of stainless steel. The Stainless steel elbow is a kind of elbow fittings. Because of the material, they can…
What Indicators should be Considered when Purchasing Galvanized Steel Pipes?
Galvanized steel pipe is a welded steel pipe with hot-dip or electroplated zinc layer on the surface. Galvanizing can increase the corrosion resistance of steel…
What should We Pay Attention to when Installing Seamless Steel Pipes?
Generally, seamless steel pipes are made by hot rolling or cold rolling of 10, 20, 30, 35, 45 carbon steel, 16Mn, 5MnV and other low…
Carbon Steel Rectangular Tube
Carbon steel rectangular tubes are widely used in various industries due to their strength, versatility, and cost-effectiveness. They are manufactured by forming a rectangular cross-section…
How to Store Galvanized Seamless Steel Pipes?
What is the galvanized seamless steel pipe?
Galvanized seamless steel pipe is a type of SMLS steel pipe that has been coated with zinc to protect…
Application and Development Trend of Spiral Welded Steel Pipes in Shipbuilding
Shipbuilding is a complex and demanding industry that has extremely high requirements for the quality and performance of materials. The performance, durability, safety and other…
Is the Welded Pipe Hot Rolled or Cold Rolled?
Welded pipe production process:
Welded pipe, also known as welded steel pipe, is a steel pipe made by applying welding technology to roll steel plate or…
How to Choose the Right Square and Rectangular Tube?
What is a square and rectangular tube?
Square tube or rectangular tube is a tube with a square or rectangular cross-section. Common materials include ordinary carbon…
Explanation of Common Defects in ERW Welded Pipes
Explanation of common defects in ERW welded pipes:
Undercut
Undercut is a groove that appears along the centerline of the weld in the transition area between the…
Carbon Steel Pipe vs Stainless Steel Pipe: Material Difference and Applicable Sc …
In today's industrial field, carbon steel pipe and stainless steel pipe are one of the most commonly used piping products. Although they are both used…
Three Surface Treatment Processes for Seamless Pipes - Pickling, Passivation and …
Seamless pipe (SMLS) pickling process:
1. Definition of pickling: Acids use chemical methods to remove oxide scale according to a certain concentration, temperature, and speed, which…
Characteristics and Application of Low Temperature Seamless Steel Pipe
Low temperature resistant seamless steel pipe is a steel pipe product used in special environments. The main requirement is that the finished steel pipe has…
Identification Method of Welded Steel Pipe and Seamless Steel Pipe
Common steel pipes mainly include welded pipes and seamless pipes (SMLS). In the process of engineering construction, appropriate steel pipes will be selected in combination…
Quality Defects and Prevention of Oil Well Pipe
The quality defects of oil well pipes mainly come from three aspects:
The first is the quality defect of the oil well pipe body itself,…
Analysis and Comparison of Eddy Current Testing and Magnetic Flux Leakage Testin …
Analysis and comparison of eddy current testing (ET) and magnetic flux leakage testing (MFL) of seamless tube(SMLS):
With the development of the national economy, all kinds…
Submerged Arc Welding - the Most Practical Steel Pipe Welding Technology
Submerged arc welding (SAW) is one of the most efficient mechanized welding methods today. Its full name is automatic submerged arc welding, also known as…
Innovation of Cold Drawing Process of Seamless Steel Pipe and its Existing Probl …
Speeding up and strengthening the drawing process of seamless steel pipes, improving the quality of pipe making, and improving the intermediate process are the keys…
Ten Ways to Remove Burrs from Steel Pipes
Burrs are ubiquitous in the metalworking process. No matter how advanced and sophisticated equipment you use, it will be born with the product. It is…
Tension Adjustment of Sizing Section of High Frequency Straight Seam Welded Pipe
In order to ensure that "tube pulling" and "tube stacking" do not occur in the forming section, welding section and sizing section, according to the…
The Advantages and Selection Criteria of Seamless Steel Pipes
The advantages of seamless steel pipes are high pressure resistance, good toughness, long pipe sections and few joints. The disadvantage is that it is expensive,…
Performance Comparison of ERW and Spiral Steel Pipe
Performance comparison of carbon ERW steel pipe and spiral steel pipe:
1. Overview
The welding of ERW steel pipe is the skin effect and proximity effect of…
Difference Between 304 and 316 Stainless Steel
I believe that many people now have stainless steel containers in their homes. Why are stainless steel containers favored by so many people because they…
Seamless Black Steel Pipe Manufacturer and Suppiler in China
Seamless Black Pipe, Black Steel Pipe Schedule 40 Seamless, Black Steel Pipe Schedule 80 Exporter
What are black steel pipes?
Black steel pipe is made up of…
The Basic Process of High-frequency Welded Pipe Sizing
The sizing of high-frequency straight seam welded pipes (ERW welded pipe) refers to the rolling of welded pipes after welding by rollers of a specific…
Causes of Well Casing Pipe Damage and Repairing Technology
How to prevent well casing pipe damage? How to repair well casing to restore its production? These are important questions in the development of oil…
High Frequency Welded (HFW) Pipe
The straight seam high frequency welded (HFW) pipe has the characteristics of simple production process and fast continuous production. It has a wide range of…
The Significance of Studying the Heat-Affected Zone of Welded Pipe Welding
Welding heat-affected zone（HAZ) is different from welding seam. Welding seam guarantees performance requirements through chemical composition adjustment, redistribution and proper welding process, while the performance…
Carbon Seamless Steel Pipe for Fluid Transportation
Fluid pipes are pipes specially used for conveying media with fluid properties.
Medium with fluid properties, in addition to liquid media such as water, oil, and…
Application of Electric Resistance Welding in Industrial Production
Electric resistance welding (ERW) was invented at the end of the 19th century. It is a method of welding by applying pressure to the assembled…
Comparison of ERW Welded Pipe and Seamless Steel Pipe (tested by PetroChina Pipe …
1. Outer diameter tolerance
ERW steel pipe: It is cold-formed and sizing is completed by reducing the diameter by 0.6%. The process temperature is basically constant…
What Corrosion Phenomena Will Occur in Thick-walled Steel Pipes in the Construct …
Metals can react with oxygen in the atmosphere to form an oxide film on the surface. The iron oxide formed on ordinary carbon steel will…
Non-destructive Testing of A53 ERW Welded Pipe
In order to protect the quality of the ERW welded pipe we produce, we will conduct quality inspection on each welded pipe produced. So what…
Application of Seamless Steel Tube in Automobile Manufacturing Industry
Seamless steel pipes have a hollow section and are used in large quantities as pipelines for conveying fluids, such as pipelines for conveying oil, natural…
Specific Application of 40Cr Seamless Steel Pipe in Bridge Engineering
40Cr seamless steel pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanized and electro-galvanized. The hot-dip galvanized layer is thick…
Oil and Gas Storage and Transportation Projects Promote the Use of ERW Steel Pip …
The operation conditions of oil storage and transportation system in petrochemical enterprises are relatively "mild" compared with production equipment. Its working pressure is generally below…
Go To Page:
