Introduction of a carbon steel plate for Modern industry

Carbon steel plate refers to carbon steel with carbon content below 0.8%, including high carbon steel, medium carbon steel and low carbon steel. Compared with carbon structural steel, the steel contains less sulfur, phosphorus and non-metallic inclusions, and has better mechanical properties. The width of the plate is generally 500~ 1500mm. The width of the thickness is 600~ 3000mm. Common steel plate to implement the standard grade ASTMA36 ASTMA283-C ASTMA283-D ASTMA285-C ASTMA515. Carbon steel is the earliest and largest base material used in modern industry. At present, the output of carbon steel in the total production of steel accounted for about 80%, it is used in construction, Bridges, railways, vehicles, ships and a variety of machinery manufacturing, as well as modern petrochemical industry, marine development and other aspects. Widely exported to Japan, Hong Kong, Southeast Asia, the Middle East and other countries and regions.

    carbon steel plate for Modern industry welding matters needing attention

In many metal materials, the weldability of carbon steel plate is relatively good, the welding parameter range is wide.Because carbon steel plate welding performance is good, in the plate is not thick, and the welding requirements are not too high, the use of AC spot welder can achieve the welding requirements.

• If the equipment cost allows, try to choose medium frequency inverter spot welding machine to spot welding low carbon steel plate, the welding effect is better, the core and solder spot will be more perfect.Carbon steel plate has cold rolled steel plate and hot rolled steel plate, cold rolled steel plate before welding without special cleaning, hot rolled steel plate must be removed on the surface of the oxide layer, rust, oil and other impurities.

• If the capacity of the spot welder allows, HDT Tubing Co.,Ltd still recommends a hard specification welding to reduce the effect of heat diffusion on the product and to reduce deformation.For the electrode head material, we suggest to choose medium conductivity and medium strength electrode material, such as Cr-Cu or Cr-Zr-Cu alloy electrode.When the surface cleaning quality is poor or the stamping accuracy is poor and the stiffness is large, amplitude-modulated current can be considered to solve the spatter problem.

 Notes for delivery and acceptance

1. Review of quality certification:

The steel factory will deliver the goods according to the requirements of users and provide the original quality certificate. The certificate must contain Specification requirements, quality record number and certificate number, batch number of furnace, technical grade, chemical composition and mechanical properties.

2. Material review:

For the delivery of Marine steel, there should be factory marks,classification society recognition mark ,use paint frame or paste marks, technical parameters etc. The appearance is smooth and without defects.on the physical objects.  

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