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合兴钢结构浅谈不同的元素对钢材性能的影响

发布时间:2015-9-7 9:21:44 浏览次数:489
1.钒:能细化钢的晶粒组织,进步钢的强度,韧性和耐磨性.当它在高温熔进奥氏体时,可增加钢的淬透性;反之,当它在碳化物形态存在时,就会降低它的淬透性.
2.碳:含碳量越高,刚的硬度就越高,但是它的可塑性和韧性就越差.
3.钨:能进步钢的红硬性和热强性,并能进步钢的耐磨性.
4.硫:是钢中的有害杂物,含硫较高的钢在高温进行压力加工时,轻易脆裂,通常叫作热脆性.
5.镍:能进步钢的强度和韧性,进步淬透性.含量高时,可明显改变钢和合金的一些物理性能,进步钢的抗腐蚀能力.
6.磷:能使钢的可塑性及韧性明显下降,特别的在低温下更为严重,这种现象叫作冷脆性.在优质钢中,硫和磷要严格控制.但从另方面看,在低碳钢中含有较高的硫和磷,能使其切削易断,对改善钢的可切削性是有利的.
7.钼:可明显的进步钢的淬透性和热强性,防止回火脆性,进步剩磁和娇顽力.
8.铜:它的突出作用是改善普通低合金钢的抗大气腐蚀性能,特别是和磷配合使用时更为明显.
9.铬:能进步钢的淬透性和耐磨性,能改善钢的抗腐蚀能力和抗氧化作用.
10.硼:当钢中含有微量的(0.001-0.005%)硼时,钢的淬透性可以成倍的进步.
11.锰:能进步钢的强度,能消弱和消除硫的不良影响,并能进步钢的淬透性,含锰量很高的高合金钢(高锰钢)具有良好的耐磨性和其它的物理性能.
12.)铝:能细化钢的晶粒组织,阻抑低碳钢的时效.进步钢在低温下的韧性,还能进步钢的抗氧化性,进步钢的耐磨性和疲惫强度等.
13.钛:能细化钢的晶粒组织,从而进步钢的强度和韧性.在不锈钢中,钛能消除或减轻钢的晶间腐蚀现象.

14.硅:它可以进步钢的硬度,但是可塑性和韧性下降,电工用的钢中含有一定量的硅,能改善软磁性能.



1. V: can refining steel grain organization, progress of steel strength, toughness and wear resistance. When it is in the high temperature melting into austenite, can increase the hardenability of steel; Conversely, when it is in the carbide form, will reduce its hardenability.

2. Carbon: the higher the carbon content, just of the higher hardness, but its plasticity and toughness is worse.

3. W: can you improve steel red hardness and heat intensity, and can you improve the wear resistance of steel.

4. S: is the harmful impurities in steel, high sulfur steel under high temperature pressure process, easy embrittlement, usually called hot brittleness.

5. Nickel: can you improve strength and toughness of steel, progress hardenability. Content is high, can obviously change some physical properties of steel and alloy, steel corrosion resistance.

6. P: can you make the plasticity and toughness of steel decreases significantly, especially in low temperature is more serious, the phenomenon is called cold brittleness. In the high-quality steel, sulfur and phosphorus to strictly control. But on the other side, in the low carbon steel containing high sulfur and phosphorus, can make its cutting brittle, can be to improve machinability is good.

7. Molybdenum: can obviously the progress of steel hardenability and hot strong sex, prevent the temper brittleness, remanence and charming coercivity progress.

The prominent role of 8 copper: it is to improve the ordinary atmospheric corrosion resistance of low alloy steel, especially more obvious when using with phosphorus.

9. Chrome: can you improve steel hardenability and abrasion resistance, can improve the corrosion resistance of steel and antioxidant effect.

10. B: when the steel contains trace amounts of boron (0.001 0.005%), the progress of steel hardenability can be multiplied.

11. Manganese: can you improve the strength of the steel, can weaken and eliminate the bad effects of sulfur, and can you improve steel hardenability, high manganese content in high alloy steel, high manganese steel has good wear resistance and other physical properties.

12.) : aluminum can refining steel grain organization, aging resistance minimizing carbon steel. Steel under low temperature toughness, also can you improve the oxidation resistance of steel, improvement of wear resistance and fatigue strength of steel.

13. Titanium: can refine steel grain group, strength and toughness of steel to progress. In stainless steel, titanium can eliminate or reduce steel intergranular corrosion phenomena.

14. Silicon: it can progress the hardness of steel, but the plasticity and toughness, electrotechnical steel containing a certain amount of silicon, can improve soft magnetic properties.




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