Popular p355gh steel welding process material hardness

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The basic phases of P355GH steel welding process, structural steel in the annealed state are ferrite and carbide. The alloy elements are dissolved in ferrite to form alloy ferrite, which depends on solid solution strengthening to increase strength and hardness, but at the same time reduce plasticity and toughness. The addition of alloying elements reduces the carbon content of the eutectoid point, which increases the proportion of pearlite in the structure and reduces the distance of the pearlite layer. This also increases the strength of the steel and reduces the plasticity.

In March, the daily output of key iron and steel enterprises fell on a month on month basis, while the overall inventory of p355gh steel welding process and so on steel materials was lower but still at a high level. In terms of production, in March, according to the key statistics, the cumulative average daily output of pig iron, crude steel and steel for iron and steel enterprises was 1.824 million tons, 1.695 million tons and 1.766 million tons respectively, down 2.1%, 3.1% and 1.7% on a month on month basis.

The toughness of steel such as p355gh steel welding process is the ability of steel to absorb energy in the process of plastic deformation and fracture, and also the ability of steel to resist impact load. It is related to and different from the plasticity of steel. It is the comprehensive performance of strength and plasticity. The strength plasticity index of steel is obtained by static tensile test. When these indexes are used to bear the dynamic load structure, there are obvious limitations.

SA387 Gr.12 Cl.2 steel has the ability to prevent hydrogen embrittlement, hydrogen corrosion, hydrogen stripping, and sulfide corrosion in a medium temperature (350 - 480℃) hydrogen environment. At the same time, p355gh steel welding process, SA387 Gr.12 Cl.2 has good low temper embrittlement and is widely used in fertilizers, petrochemicals, and the manufacture of thermal power plant equipment, such as ammonia synthesis reactor, coal gasifier, shift furnace and hydrogenation reactor.