<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:14.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550船舶及海洋工程用结构钢*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">一、*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">钢板简介:*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">是*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">制造远洋、沿海和内河航区航行船舶、渔船及海洋工程结构用厚度不大于*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">150mm的钢板,有Z向要求的钢板在后缀加Z25、Z35,用途为超高强度船舶及海洋工程用结构钢。*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">二、*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">船板*n>AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">尺寸、外形、重量及允许偏差*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">钢板的尺寸、外形、重量及允许偏差应符合*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">GAH550/T709的规定,厚度下偏差为-0.3mm.*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"> 3.1*n>*n>*n>*n> <*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"> <*n style="font-family:宋体">钢板通常以*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">调质、正火、热机械轧制*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">+回火*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">状态交货*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">3.2 钢板应以剪切或用火焰切割交货*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">四、*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">化学成分*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"> <*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">钢的化学成分(熔炼分析)应符合下表的规定(%)。表*n>1 *n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">化学成分要求*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">C*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">Si*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">Mn*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">P*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">S*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">N*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤0.*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">21*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤0.*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">55*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">1.7*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤0.0*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">3*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤0.0*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">3*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≤*n>*n>*n>*n><*n style="font-size:7.5000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">0.02*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">添加的合金化元素及细化晶粒元素*n>Al,Nb,V,Ti应符合船级社认可或公认的有关标准规定*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">应采用公式计算裂纹敏感系数*n>Pcm代替碳当量,其值应符合船级社认可的标准*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">五*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">、*n>*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">机械性能*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"> <*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">的力学性能和工艺性能能应符合下表规定:*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">力学性能要求*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">牌号*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">拉伸试验*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">V型冲击试验*n>*n>*n>*n>*n>*n> |
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<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">上屈服强度*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">*拉强度*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">断后伸长率*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">试验温度*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">以下厚度冲击吸收能量*n>*n>*n>*n>*n>*n> |
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<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">纵向*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">横向*n>*n>*n>*n>*n>*n> |
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<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">AH550*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≥*n>*n>*n>*n><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">550*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">670-830*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">≥*n>*n>*n>*n><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">16*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">0*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">55*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:9.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">37*n>*n>*n>*n>*n>*n> |
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">Z向钢板应进行超声波探伤,探伤级别应在合同中注明*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">根据需方要求,经供需双方协议,其他钢板也可进行无损检测*n>*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">ABS、BV、CCS、DNV、GL、KR、LR、NK、RINA、ZY中各国船级社都可生产,认证ABS-AH550、BV-AH550、CCS-AH550、DNV-AH550、GL-AH550、KR-AH550、LR-AH550、NK-AH550、RINA-AH550、ZY-AH550*n>*n>*n>*n>*n>*n>
<*n style="font-size:12pt"><*n style="font-family:Calibri"><*n style="font-size:10.0000pt"><*n style="background-color:#ffffff"><*n style="font-family:宋体"><*n style="color:#000000">*n>*n>*n>*n>*n>*n>