2023-11-22 After the oil casing adopts this heat treatment method, it can effectively improve the impact toughness, tensile strength, and anti-destructive performance of the oil casing, ensuring good value in use. Petroleum casing is a necessary pipe material for drilling oil and natural gas, and it needs to h
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2023-11-21 Different working environments require different surface treatment methods for seamless pipes to ensure the performance and service life of the steel pipe. 1. Indoor use: Seamless steel pipes for indoor use can choose surface treatment methods such as spray painting, coating or electroplating. 2
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2023-11-21 1. If the buyer has special requirements for the packaging material and packaging method of the spiral steel pipe, it should be indicated in the contract; if not specified, the packaging material and packaging method can be selected by the supplier. 2. Packaging materials should comply with relevant
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2023-11-20 Basic introduction to carbon steel round tubes and square tubes:
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2023-11-20 1. The principal requirement of spiral steel pipe stacking is to stack according to varieties and specifications under the premise of stable stacking and ensuring safety. Different types of materials should be stacked separately to prevent muddling and mutual erosion;2. It is forbidden to store item
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2023-11-17 Standard length range of seamless pipes (SMLS):
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2023-11-17 A. Hot metal pretreatment.To ensure the low-sulfur content of pipeline steel, hot metal pretreatment is required before steelmaking. This is a convenient and economical method to obtain low-sulfur hot metal. Usually, spraying, stirring and other hot metal desulfurization methods are used to spray ca
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2023-11-16 1. Different pressure capacity:Seam steel pipes generally can withstand operating pressure in 20 kg, which is the safest range of use. It is generally used for low-pressure fluids such as water, gas, and compressed air; seamless steel pipes can withstand ultra-high pressure, of course, the wall thic
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