SPV355 steel is a kind of Japanese standard steel for medium temperature pressure vessels. The executive technical standard of SPV355 steel is JIS G3115. SPV355 steel is widely used in petroleum, chemical industry, power station, boiler and other industries. SPV355 steel is used to make reactor, quenched and tempered GL-E40 hull steel plate heat exchanger, separator, spherical tank, oil and gas tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, liquefied petroleum cylinder, high-pressure water pipe of hydropower station, turbine volute and other equipment and components.
20G steel is boiler steel, which is similar to No. 20 carbon steel. The difference is that 20G steel has higher and stricter inspection standards than quenched and tempered GL-E40 hull steel plate, No. 20 carbon steel for harmful impurities and internal defects. That is to say, 20G steel is specially produced for boiler pressure vessels. It is special purpose "No. 20 carbon steel". The use of 20G steel to make boilers is not because it is more resistant to burning than other steels such as quenched and tempered GL-E40 hull steel plate, but because of its strength, toughness, ductility, weldability, temperature influence, fatigue fracture, price and cost, etc. 20G steel is most suitable for use in medium and low pressure boilers.
The steel plate cutting and processing instructions are as follows: steel plate cutting and steel plate cutting processing, as well as quenched and tempered GL-E40 hull steel plate steel plate zero cutting processing. There are semi-automatic flame cutting, fully automatic CNC cutting, laser cutting and water cutting. The thickness range of steel plate that can be cut is 20650mm. In terms of quenched and tempered GL-E40 hull steel plate steel plate cutting types, there are Q235B common plate, Q345B low alloy plate and 45 carbon bonded plate.
The company has sufficient stocks and complete specifications. The common carbon steel plates, marine plates, quenched and tempered GL-E40 hull steel plate and storage tank steel plates sold are all produced by large state-owned steel companies such as Shougang, Hegang, Taiyuan Iron and Steel, with quality assurance and worry-free after-sales. The company develops and grows under the concept of seeking innovation in stability and advancing with the times for development. After a short period of development, it has begun to take shape.
Our company will accept the product quality objection registration record, pass it to the quenched and tempered GL-E40 hull steel plate production unit and relevant departments, and timely coordinate the supervision of product quenched and tempered GL-E40 hull steel plate quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.
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