麻豆人妻无码性色AV专区,亚洲AV极品无码专区在线观看,18禁美女黄网站色大片在线,秋霞无码久久久精品,宅男噜噜噜66网站在线观看,真人无码作爱免费视频网站,中国亚州女人69内射少妇,丝袜美腿亚洲一区二区,少妇高潮无套内谢麻豆传,国产精品无码AV片在线观看播

<center id="ojlzu"></center>
<rt id="ojlzu"></rt>
    <rt id="ojlzu"></rt>
  1. <rt id="ojlzu"></rt>
      1. Wuxi Gotele Metal Products Co., Ltd : CN EN
        Home >>News >>News of Metal Industry

        What Kind of Steel is Alloy Spring Steel?

        Alloy spring steel is based on carbon steel, by adding one or several alloying elements to improve the mechanical properties, hardenability and other properties of steel to meet the steel required for the production of various springs.




        The basic composition series of alloy spring steel includes silicon manganese spring steel, silicon chrome spring steel, chromium manganese spring steel, chromium vanadium spring steel, tungsten chromium vanadium spring steel and the like. Based on these series, there are some grades that incorporate alloying elements such as molybdenum, vanadium or boron in order to improve their performance in some aspects.

        In addition, some steel grades, such as high-quality carbon structural steel, carbon tool steel, high-speed tool steel, and stainless steel, are selected as spring steels.


        2. Classified according to production and processing methods
        (1) Hot rolling (forging) Steels include hot rolled round bars, square steel, flat steel, steel plates, forged round steel and square steel.

        (2) Cold drawing (rolling) Steel includes steel wire, steel strip and cold drawn steel (cold drawn round steel).


        3. Classified according to steel delivery status
        (1) Hot rolling (forging) steel
        A. Delivery in hot rolled (wrought) condition The steel is thermoformed into a spring and then quenched and tempered.
        B. Delivery in an annealed condition The steel is cold formed into a spring and then quenched and tempered.
        All of the above should meet the requirements of the corresponding delivery state hardness.

        (2) cold drawing (rolling) steel


        For our full list of products that we offer check out our website here. Be sure to join the conversation in our LinkedIn groupFacebookTwitter . Try also our WeChat by scanning the QR code below.


        Susan F.//SMC Editor

        HomeTelProductsContact
        CN EN
        伊人国产在线观看一区二区| 亚洲中文字幕综合一区| 欧美精品中文字幕亚洲综合| 国产av巨作久久婷婷| 国产精品丝袜美女在线观看| 国产毛片三区二区一区| 亚洲综合网一区二区三区| 扒开双腿操女人逼的免费视频| 免费国产白丝喷水娇喘视频| 又粗又硬又大免费AV| 亚洲国产精品黄色av| 欧美中文字幕在线观看一区| 美女被射视频在线观看91| 精品白丝一区二区三区| 国产精品成人不卡乱码| 国产欧美一区二区三区在线播放| 亚洲粉嫩av一区二区黑人| 四虎在线播放亚洲成人| 天堂蜜桃一区二区三区| 精品一区二区三区激情| 亚洲AV18????在线观看| 国产午夜视频看看果冻| av在线天堂成人av| 午夜精品成人一区二区视频| 黑人巨大亚洲一区二区久| 精品人妻伦一二三区久久| 色午夜av男人的天堂| 制服丝袜在线中文字幕人妻| 国产a级三级三级三级视频| 日韩人妻免费在线视频| 久草精品手机视频在线观看| 中文字幕无线观看不卡网站| 中文字幕有码在线播放| 久久迷青品着产亚洲av网站| av成人天堂在线观看| 国产精品无码一区二区在线| 国产高清在线不卡一区| 欧美一区二区三区午夜亚洲| 国产美女口爆在线观看| 日本一区二区三区在线播放| 激性欧美激情在线|