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15CrMn,是中國國家標(biāo)準(zhǔn)規(guī)定的一種合金結(jié)構(gòu)鋼的牌號。統(tǒng)一數(shù)字代號:A22152。<br style="margin: 0px; padding: 0px;" />
標(biāo)準(zhǔn):GB/T 3077-1988 <br style="margin: 0px; padding: 0px;" />
JIS G4053:2003<br style="margin: 0px; padding: 0px;" />
A29M:2005<br style="margin: 0px; padding: 0px;" />
ISO 683-18:1996<br style="margin: 0px; padding: 0px;" />
化學(xué)成分質(zhì)量分?jǐn)?shù)(%):<br style="margin: 0px; padding: 0px;" />
碳 C :0.12~0.18 <br style="margin: 0px; padding: 0px;" />
硅 Si:0.17~0.37 <br style="margin: 0px; padding: 0px;" />
錳 Mn:1.10~1.40 <br style="margin: 0px; padding: 0px;" />
硫 S :允許殘余含量≤0.035 <br style="margin: 0px; padding: 0px;" />
磷 P :允許殘余含量≤0.035 <br style="margin: 0px; padding: 0px;" />
鉻 Cr:0.40~0.70 <br style="margin: 0px; padding: 0px;" />
鎳 Ni:允許殘余含量≤0.030 <br style="margin: 0px; padding: 0px;" />
銅 Cu:允許殘余含量≤0.030</div>
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<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 20px; color: rgb(34, 34, 34); font-family: 'microsoft yahei', Arial, Helvetica, sans-serif;">力學(xué)性能</span>折疊<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; line-height: 16px;">編輯本段</span></h2>
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【試樣毛坯尺寸】<br style="margin: 0px; padding: 0px;" />
15mm<br style="margin: 0px; padding: 0px;" />
【熱處理】<br style="margin: 0px; padding: 0px;" />
淬火加熱溫度(℃):880;冷卻劑:油<br style="margin: 0px; padding: 0px;" />
回火加熱溫度(℃):200;冷卻劑:水、空<br style="margin: 0px; padding: 0px;" />
【力學(xué)性能】<br style="margin: 0px; padding: 0px;" />
抗拉強度 σb (MPa):≥785(80) <br style="margin: 0px; padding: 0px;" />
屈服強度 σs (MPa):≥590(60) <br style="margin: 0px; padding: 0px;" />
伸長率 δ5 (%):≥12 <br style="margin: 0px; padding: 0px;" />
斷面收縮率 ψ (%):≥50 <br style="margin: 0px; padding: 0px;" />
沖擊功 Akv (J):≥47 <br style="margin: 0px; padding: 0px;" />
沖擊韌性值 αkv (J/cm2):≥59(6) <br style="margin: 0px; padding: 0px;" />
布氏硬度(HBS100/3000)(退火或高溫回火狀態(tài)):≦179</div>
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