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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 34px;">4Cr10Si2Mo</span></h1>
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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 24px; line-height: 24px;">特性及适用范围</span></h2>
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有较高的热强性,作内燃机进气阀,轻负荷发动机的排气阀等。</div>
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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 16px; line-height: 24px; background-color: rgb(81, 156, 234); color: rgb(255, 255, 255);">3</span><span style="margin: 0px; padding: 0px; outline: 0px; font-size: 24px; line-height: 24px;">化学成分</span></h2>
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碳 C :0.35~0.45硅 Si:1.90~2.60</div>
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锰 Mn:≤0.70</div>
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硫 S :≤0.030</div>
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磷 P :≤0.035</div>
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铬 Cr:9.00~10.50</div>
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镍 Ni:≤0.60</div>
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钼 Mo:0.70~0.90</div>
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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 16px; line-height: 24px; background-color: rgb(81, 156, 234); color: rgb(255, 255, 255);">4</span><span style="margin: 0px; padding: 0px; outline: 0px; font-size: 24px; line-height: 24px;">力学性能</span></h2>
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抗拉强度 σb (MPa):淬火回火,≥885</div>
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条件屈服强度 σ0.2 (MPa):淬火回火,≥685</div>
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伸长率 δ5 (%):淬火回火,≥10</div>
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断面收缩率 ψ (%):淬火回火,≥35</div>
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硬度 :退火,≤269</div>
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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 16px; line-height: 24px; background-color: rgb(81, 156, 234); color: rgb(255, 255, 255);">5</span><span style="margin: 0px; padding: 0px; outline: 0px; font-size: 24px; line-height: 24px;">热处理规范及金相组织</span></h2>
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热处理规范:1)淬火,1010~1040℃油冷;2)回火,120~160℃空冷。</div>
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金相组织:组织特征为马氏体型。</div>