Shandong 42crmo seamless steel pipe is now called

Shandong 42crmo seamless steel pipe is now known as Shandong Q345B seamless steel pipe
42crmo is a material in steel. A name for steel in the past. The current name is Q345B, and the similar materials are Q345a, Q345c, and Q345e. The quality level symbol ABCDE indicates that the impact test is not required. The impact test temperature is +20 degrees 0 degrees - 20 degrees 40 degrees ABCD indicates the quality level Q235 quality The grade is divided into A, B, C, D four levels, from A to D that the quality from low to high. The requirements for different quality grades are as follows: A—Provide chemical composition of S, P, C, Mn, Si and fu, fy, and δ5 (δ10). According to the buyer’s needs, 1800 cold bending test can be provided, but there is no impact energy requirement, and carbon content is included. And the amount of manganese is not as a delivery condition. B—Provides S, P, C, Mn, Si chemical composition and fu, fy, δ5 (δ10), cold bend 180′ test. Also provides +200C impact energy Ak ≥ 27J C - in addition to the same as the B-level requirements, but also provide 00C impact power Ak ≥ 27J. D - In addition to the same requirements as Class B, it also provides impact work Ak -27J E at -200C - in addition to Class B requirements, it also provides impact work Ak -27J at -400C.
Shandong seamless steel pipe plant Liaocheng Wanlihong Steel Pipe Factory is a professional manufacturer of seamless steel pipe, high quality and low price, spot supply of Shandong Seamless Steel Tube Factory Wanlihong Steel Pipe welcomes friends from all walks of life come to order negotiations, the hotline:.
The application of 42crmo seamless steel pipe: The special steel used for bridges is “42crmo”, the special steel for automobile girders is “42CRmo”, and the special steel for pressure vessels is “42Crmo”. This kind of steel is to improve the mechanical properties of steel by adjusting the amount of carbon (C). Therefore, according to the level of carbon content, such steels can be further divided into: low-carbon steels - carbon content is generally less than 0.25%, such as 10, 20 steel, etc.; Medium carbon steel - carbon content is generally between 0.25 ~ 0.60%, such as 35,45 steel, etc.; high carbon steel - carbon content is generally greater than 0.60%. This type of steel is generally not used to make steel pipes.
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