GuangZhou Cgoodsteel Co., LTD
Add;326-328(4th Floor),Ping Kang Rd, Sha Xu I,Shi Qiao Str. PanYu Dist,GZ CHINA
Ph: + 86 20 84815871 Ext 8018
Fax: +86 20 84815872
Aileen: Mb/Wechat/Whatsapp: +8613543460072
www.gdgwsteel.com
Quenching is a process of cooling a metal very quickly. This is most often done to produce a martensite transformation. In ferrous alloys, this will often produce a harder metal.
To harden by quenching, a metal must be heated above the upper critical temperature and then quickly cooled. Depending on the alloy and other considerations (such as concern for maximum hardness vs. cracking and distortion), cooling may be done with forced air or other gases, Liquids may be used, due to their better thermal conductivity, such as oil, water, a polymer dissolved in water, or a brine. Upon being rapidly cooled, a portion of austenite (dependent on alloy composition) will transform to martensite, a hard, brittle crystalline structure. The quenched hardness of a metal depends on its chemical composition and quenching method. Cooling speeds, from fastest to slowest, go from polymer , brine, fresh water, oil, and forced air. However, quenching a certain steel too fast can result in cracking, which is why high-tensile steels such as AISI 4140 should be quenched in oil, tool steels such as ISO 1.2767 or H13 hot work tool steel should be quenched in forced air, and low alloy or medium-tensile steels such as XK1320 or AISI 1040 should be quenched in brine.
Steel strip Alloy steel strip Spring steel strip Stainless steel strip High carbon steel strip Spheroidized steel strip Fully annealed steel strip Hardened and tempered steel strip carbon steel strips
Copyright @2003-2012 GuangZhou cgood Steel Co.,Ltd Mail: aileen@cgoodsteel.com 粤ICP备15063552号
Tel:+86208481587 Ext 8018 Fax:+862084815872 Addess:326-328(4th Floor), Ping Kang Rd, Sha Xu I, Shi Qiao Str, PanYu Dist, GZ CHINA