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The difference between H13 forging round steel and other steel

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The difference between H13 forging round steel and other steel

Release date:2016-06-19 00:00 source:http://www.zjmjg.com Click:

    




H13 forging round steel and other steel difference: 1 appearance is not the same, round steel exterior circle of light, no lines without ribs, and other steel surface appearance has a groove or a rib, thus causing the cohesive force of small round steel and concrete, and the other the cohesive force of steel bar and reinforced concrete. 2 ingredients are different, round steel (level 1) steel belong to the normal low carbon steel, more than other reinforcement for alloy steel. 

Carbon content less than 1.35%, with the exception of iron, carbon and limited within the silicon, manganese, phosphorus, sulfur and other impurities, excluding other alloying elements of steel. Carbon steel depends mainly on the performance of carbon content. Higher carbon content increasing, the strength of steel, hardness, plasticity, toughness and weldability. Compared with other steel, carbon steel used in the earliest, low cost, wide range of performance, and the consumption is the largest. Applicable to the nominal pressure PN 32.0 MPa, or less temperature for 30-425 ℃ water, steam, air, hydrogen, ammonia, nitrogen and oil products such as medium. 

With the accumulation of social scrap steel resources, the development of direct reduction technology, the development of electric power industry, electric arc furnace steelmaking technology (large capacity electric furnace, ultra high power electric furnace, etc.) and the rapid development of refining outside the furnace technology, especially the electric furnace tapping time shorten, can match well with continuous casting time and make even more furnace casting, electric furnace steel mills are increasingly common steel products, and more and more special steel smelting converter steelworks. 

H13 die steel has high thermal crack resistance and thermal fatigue resistance, in the workplace can be water-cooled mold undergo chill shock hot difficult to form the crack formation and crack extension, avoid mould invalidation. 

2, h13 die steel has high thermal softening resistance and high temperature wear resistance, carburizing or nitriding process can be used to improve its surface hardness, but slightly lower thermal cracking ability, is to maintain a certain mold high temperature strength and dimensional stability. 




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