@Larrychase

@larrychase · 2 years ago

Common defects of hot-rolled seamless steel pipes

Hot-rolled seamless steel pipe production base deformation process can be summarized as three stages: perforation, extension and finishing. a. Inner surface defects An inner flap: presenting a strai...

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@larrychase · 2 years ago

The difference between seamless pipe and welded pipe

Seamless steel pipe is a round, square and rectangular steel with a hollow section and no joints on the periphery. Seamless steel pipes are made of steel ingots or solid tube billets through perforati...

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@larrychase · 2 years ago

Characteristics and storage requirements of cold drawn seamless pipes

Seamless steel pipes are divided into cold-drawn seamless pipes and hot-rolled seamless pipes according to the production process. Cold drawn seamless pipes are seamless steel pipes with a circular cr...

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@larrychase · 2 years ago

How is the hydraulic test of the steel pipe done?

Hydraulic test is an indispensable link in the production process of steel pipes. Its function is to test the anti-leakage performance of the steel pipe under standard test pressure and stable voltage...

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@larrychase · 2 years ago

Product deep processing characteristics of Carbon steel Carbon steel seamless pipe

The total surface area of the Carbon steel seamless pipe after air drawing is increased, while the area of the inner surface layer is reduced. Therefore, a neutralized layer will appear between the in...

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@larrychase · 2 years ago

The universality of buried pipeline epoxy coal tar anticorrosive steel pipe

The epoxy coal tar pitch anti-corrosion coating in the epoxy coal tar pitch anticorrosive steel pipe is composed of two main components: epoxy and coal tar pitch. It is a two-component coating of meth...

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@larrychase · 2 years ago

Do you know steel pipe welding technology?

With the progress and development of advanced technology, welded pipe technology has achieved leapfrog development in the past ten years of this century, directly driving the production efficiency of...

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@larrychase · 3 years ago

Submerged arc welding process and performance of Q345B seamless steel pipe

Q345B seamless steel pipe belongs to hot rolled and normalized steel, and its main structure is ferrite + pearlite. This kind of steel has high hardness, strength, low plasticity and toughness, and ha...

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@larrychase · 3 years ago

What are the requirements for 16Mn seamless steel pipes during production?

First, the model classification and storage of 16Mn seamless steel pipe, However, for different good-quality 16Mn seamless steel pipes, they must be classified and stored, otherwise the 16Mn seamless...

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@larrychase · 3 years ago

What problems should be paid attention to when welding 16Mn seamless steel pipes?

The process of 16Mn seamless steel pipe processing is a more important step, and in many cases it is a series of complete steps. Because 16Mn seamless steel pipe is a useful type of steel, there are...

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@larrychase · 3 years ago

Why are seamless steel pipes suitable for building safe buildings?

With the advancement of urbanization, more and more high-rise buildings are being built, but have you noticed that there is a bracket on the outside of the high-rise building, which is used to ensure...

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@larrychase · 3 years ago

How to connect two seamless steel pipes?

There are many ways to connect two seamless steel pipes (eg: ASTM A106 steel pipe )together, but generally speaking, there are two major ways: one is detachable connection, the other is non detachable...

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@larrychase · 3 years ago

What are the advantages of using longitudinally welded pipes to transport fluids?

At present, the proportion of oil and gas transported by longitudinally welded pipes(eg: ERW steel pipe ) in the world is increasing, accounting for about 75%-95% of the total oil and gas.The scope of...

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@larrychase · 3 years ago

Research and development of Chinese standard and American ASTM standard cryogenic seamless pipe

Low-temperature seamless steel pipes are mainly used in the production of ethylene, propylene, urea, synthetic ammonia, compound fertilizers, and other process equipment such as washing, purificatio...

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@larrychase · 3 years ago

The role of thermal insulation steel pipes in converting coal to electricity

Coal-to-electricity conversion refers to the conversion of coal-fueled boilers and other tools used for heating to electric heating. Under current environmental protection requirements, it can only be...

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@larrychase · 3 years ago

Common seamless steel pipe heat treatment process, use and function

Heat treatment is a seamless steel pipe thermal processing technology that heats, heats, and cools seamless steel pipe in a certain medium, and controls its performance by changing the surface or inte...

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@larrychase · 3 years ago

Analysis on how to choose material for steel supporting structure steel pipe

Regarding the selection of steel supporting structure steel pipe, which material is better for straight seam steel pipe and spiral steel pipe? The following analysis gives an introduction from the...

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@larrychase · 3 years ago

What is the insulation effect of polyurethane insulation steel pipe?

Polyurethane insulation steel pipe is a kind of insulation steel pipe product widely used at low pressure, mainly suitable for transporting hot and cold water, etc. However, the insulation effect of p...

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@larrychase · 3 years ago

Why do 16Mn seamless steel pipes need to be tested repeatedly in production?

The process of 16Mn seamless steel pipes from production to use is continuously tested repeatedly. Without a good test process, it is impossible to produce a more qualified product. 16Mn seamless st...

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@larrychase · 3 years ago

Method for analyzing chemical composition of seamless steel pipe with carbon and sulfur analyzer

Steps of carbon and sulfur analyzer to analyze chemical composition of seamless steel pipe The carbon-sulfur analyzer analyzes the chemical composition of seamless steel pipes. The principle is tha...

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@larrychase · 3 years ago

The effect of pickling, passivation and phosphating in the production of seamless steel pipes

In the process of production, machining, welding, testing and heat treatment of seamless steel pipes , the surface area of seamless steel pipes (carbon copper pipes, stainless steel pipes) will accum...

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@larrychase · 3 years ago

Causes of seamless steel pipe cooling cracks

When the seamless steel pipe is in the sound field, heat treatment is required to eliminate the stress inside the steel pipe. If the stress treatment is not thorough, it will cause certain damage to...

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@larrychase · 3 years ago

Why do ordinary seamless steel pipes need to be pickled?

In the rolling of seamless steel pipes , especially in the production process of precision seamless steel pipes, how does the pickling process work? Today’s article will reveal for you. Overview...

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@larrychase · 3 years ago

How to control the heat preservation time of seamless steel pipes?

Seamless steel pipe occupies an important position in the national social economy. Perhaps our friends do not understand it very well, but it has been widely used in petroleum and chemical management...

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@larrychase · 3 years ago

Inspection standard of seamless steel pipe

Steel pipe geometry and shape inspection: ① Inspection of steel pipe wall thickness: micrometer, ultrasonic thickness gauge, no less than 8 points at both ends and record. ②Examination of steel pipe...

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