Chemical elements of JIS SM570 steel plate

The company adheres to the business philosophy of "excellent quality and integrity", aims to create a first-class enterprise in the JIS SM570 steel plate industry, takes circular economy and resource reuse as the main line, takes energy conservation, emission reduction and sustainable development as the purpose, relies on advanced equipment, perfect transportation infrastructure and good reputation, and strives to become a leading enterprise in the JIS SM570 steel plate industry with scientific management, high quality, first-class service and harmonious development

Q345qCNH grade is a weather-resistant structural steel for bridges. Bridge steel grade is Q345qC. It is produced by the standard GB / T714-2014. Weather-resistant bridge plate Q345qCNH is a kind of structural steel plate for bridge. Add a certain amount of alloy elements, such as P, Cr, Ni, Cu, Mo, etc. to the steel to form a protective layer on the surface of the metal substrate to improve the atmospheric resistance corrosive steel.

20G steel is a common carbon steel used to manufacture boilers. The performance of 20G steel is basically the same as that of 20# steel. The requirements for impact toughness, strain aging impact value and cold bending of 20G steel are increased. The yield ratio of 20G steel is slightly higher, and certain fatigue and corrosion resistance are required for JIS SM570 steel plate steel to ensure the safe operation of boilers. 20G steel is suitable for manufacturing marine boilers, steam boilers and other boiler accessories with pressure less than 6Mpa and wall temperature less than 450 ℃.

The main applications of normalizing are as follows:① For low carbon steel, JIS SM570 steel plate. The hardness of low carbon steel after normalizing is slightly higher than that after annealing, and the toughness is also better, so normalizing can be used as the pretreatment of cutting.② For medium carbon steel, normalizing can be used as the final heat treatment instead of quenching and tempering treatment, or as the preparation treatment before surface quenching by induction heating.③ Normalizing can be used in tool steel, bearing steel, carburizing steel and so on, which can eliminate or inhibit the formation of network carbide, thus obtaining the good microstructure needed for spheroidizing annealing.④ Normalizing can refine the cast structure and improve the machinability of steel castings.

Seamless pipes material and specification
API 5L Gr.B, JIS SM570 steel plate A106 Gr.B, ASTM A53 Gr.B, ST37.0, ST35.8, St37.2, St35.4/8,St42,St45,St52,St52.4, STP G38, STP G42, STS42STPT49STS49
Sizes(mm): 0.12-2.0mm*600-1250mm
Wall Thickness(mm):1.2mm-40mm
Certificates: API5L ISO 9001:2008 TUV SGS BV etc
Surface: Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE

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