日本色wwwcom.,caoporn超碰最新地址进入,97视频国产自在自线2020,亚州,国产精品无码视频

  • <center id="t5vsh"></center>

    <center id="t5vsh"><em id="t5vsh"></em></center><tr id="t5vsh"></tr>

  • <tr id="t5vsh"></tr>
  • <object id="t5vsh"><sup id="t5vsh"><sub id="t5vsh"></sub></sup></object>

  • Spring steel strip
    Position:Home >> Products >> Spring steel strip
    SK2 carbon tool steel
    Public Time:2011年10月18日 | Sort:Spring steel strip | Hits:1506

    SK2 carbon tool steel

    Japanese carbon tool steel, the steel has high strength, good wear resistance, toughness and good enough durability, with good machinability characteristics. Simple shapes for manufacturing small tool and die. Implementation of standards
    Japan JIS G4401
    Supplier hardness
    Soft-state, semi-hard, hard state (thermal material)
    Surface color
    Cold white, blue, golden, heat color
    SK2 chemical composition
    Carbon (C) 1.10 ~ 1.30 Manganese (Mn) ≤ 0.50 silicon (Si) ≤ 0.35 Phosphorus (P) ≤ 0.030 Sulfur (S) ≤ 0.030
    Characterization
    The Japanese steel is carbon tool steel, high strength, wear resistance, toughness and durability of sufficient, good machinability, no deformation of the poor quenching, tempering poor stability.
    Starting temperature of thermal processing specification 1000 ~ 1050 ℃.
    Quenching temperature quenching specification 750 ~ 780 ℃, quenching, tempering hardness 63HRC.
    【Close】
    All rights reserved: Shanghai Zhilian steel trade Co., LTD.
    Copyrigh @ 2010 2011 Shanghai Zhilian steel trade Co., LTD. All rights reserved
  • <center id="t5vsh"></center>

    <center id="t5vsh"><em id="t5vsh"></em></center><tr id="t5vsh"></tr>

  • <tr id="t5vsh"></tr>
  • <object id="t5vsh"><sup id="t5vsh"><sub id="t5vsh"></sub></sup></object>

  • 日本色wwwcom.,caoporn超碰最新地址进入,97视频国产自在自线2020,亚州,国产精品无码视频

    品牌简介

    {转码主词}