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20号- 55号

2019-10-31
20号- 55号
详细介绍:

常用于制造无缝钢管,模具,优质碳素钢板,槽钢,工字钢等钢材。


碳素钢的分类


钢中可分为低碳钢、中碳钢和高碳钢。

低碳钢--含碳量一般小于0.25%;

中碳钢--含碳量一般在0.25~0.60%之间;

高碳钢--含碳量一般大于0.60%。

钢中除含有碳(C)元素和为脱氧而含有一定量硅(Si)(一般不超过0.40%),锰(Mn)(一般不超过0.80%,较高可到1.20%)合金元素外,不含其他合金元素(残余元素除外)。

钢中含碳量低于2.1%为钢,含碳量高于2.1%为铁。

钢中含碳量越高其韧性越差,钢中含铁量越高其韧性越好。


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ommonly used in the manufacture of seamless steel tubes, molds, high-quality carbon steel, channel steel, I-beam and other steel.


Classification of carbon steel


Steel can be divided into low carbon steel, medium carbon steel and high carbon steel.


Low carbon steel - the carbon content is generally less than 0.25%;


Medium carbon steel - the carbon content is generally between 0.25 and 0.60%;


High carbon steel - carbon content is generally greater than 0.60%.


In addition to carbon (C) elements and containing a certain amount of silicon (Si) (generally not more than 0.40%), manganese (Mn) (generally not more than 0.80%, up to 1.20% higher) alloying elements, Contains no other alloying elements (except for residual elements).


The carbon content of the steel is less than 2.1% for steel, and the carbon content is higher than 2.1% for iron.


The higher the carbon content of the steel, the worse the toughness. The higher the iron content in the steel, the better the toughness.

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