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Analysis and Comparison of Stainless Steel 304, 304L, and 316

Stainless Steel Overview Stainless Steel: A type of steel known for its corrosion resistance and non-rusting properties, containing at least 10.5% chromium and a maximum of 1.2% carbon. Stainless steel is a material widely used across various industries, renowned for its corrosion resistance... Read More

Formula for Theoretical Weight of Steel Pipe

Weight (kg) per piece of steel pipe The theoretical weight of a steel pipe can be calculated using the formula: Weight = (Outside Diameter – Wall Thickness) * Wall Thickness * 0.02466 * Length Outside Diameter is the outer diameter of the pipe Wall Thickness is the thickness of the pipe wal... Read More

The difference between seamless pipes and welded steel pipes

1. Different materials: *Welded steel pipe: Welded steel pipe refers to a steel pipe with surface seams that is formed by bending and deforming steel strips or steel plates into circular, square, or other shapes, and then welding. The billet used for welded steel pipe is steel plate or strip stee... Read More

API 5L Product Specification Level PSL1 and PSL 2

API 5L steel pipes are suitable for use in conveying gas, water, and oil in both the oil and natural gas industries. Api 5L specification covers seamless and welded steel line pipe. It includes plain-end, threaded-end, and belled-end pipe. PRODUCT SPECIFICATION LEVEL (PSL) PSL: Abbreviation... Read More

Which kinds of thread galvanized steel pipe Youfa supply ?

BSP (British Standard Pipe) threads and NPT (National Pipe Thread) threads are two common pipe thread standards, with some key differences: Regional and National Standards BSP Threads: These are British standards, formulated and managed by the British Standards Institution (BSI). They have a th... Read More

ASTM A53 A795 API 5L Schedule 80 carbon steel pipe

Schedule 40 carbon steel pipes are categorized based on a combination of factors including the diameter-to-wall thickness ratio, material strength, outer diameter, wall thickness, and pressure capacity. The schedule designation, such as Schedule 40, reflects a specific combination of these factor... Read More

ASTM A53 A795 API 5L Schedule 40 carbon steel pipe

Schedule 40 carbon steel pipes are categorized based on a combination of factors including the diameter-to-wall thickness ratio, material strength, outer diameter, wall thickness, and pressure capacity. The schedule designation, such as Schedule 40, reflects a specific combination of these factor... Read More

What is the difference between stainless steel 304 and 316 ?

Stainless steel 304 and 316 are both popular grades of stainless steel with distinct differences. Stainless steel 304 contains 18% chromium and 8% nickel, while stainless steel 316 contains 16% chromium, 10% nickel, and 2% molybdenum. The addition of molybdenum in stainless steel 316 provides bet... Read More

How to choose a steel pipe coupling ?

A steel pipe coupling is a fitting that connects two pipes together in a straight line. It is used to extend or repair a pipeline, allowing for easy and secure connections of pipes. Steel pipe couplings are commonly used in a variety of industries, including oil and gas, construction, plumbing, a... Read More

Performance inspection methods for 304/304L stainless steel seamless pipes

304/304L stainless seamless steel pipe is one of the very important raw materials in the manufacture of stainless steel pipe fittings. 304/304L stainless steel is a common chromium-nickel alloy stainless steel with good corrosion resistance and high temperature resistance, which is very suitable ... Read More

Storing galvanized steel products properly during the rainy season is important to prevent any damage or corrosion.

In the summer, there is a lot of rain, and after the rain, the weather is hot and humid. In this state, the surface of galvanized steel products is easy to be alkalization (commonly known as white rust), and the interior (especially 1/2inch to 1-1/4inch galvanized pipes) is prone to produce black... Read More

Steel Gauge Conversion Chart

These dimensions may vary slightly depending on the specific material being used, such as stainless steel or aluminum. Here is the table that shows the actual thickness of sheet steel in millimetres and inches compared to gauge size: Gauge No Inch Metric 1 0.300″ 7.6mm 2 0.276R... Read More
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