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12CRMO合金圓鋼-合金結(jié)構(gòu)鋼
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合金結(jié)構(gòu)鋼對應(yīng)國外標(biāo)準(zhǔn)：JIS（日本） G4053：2003 A29M（美國）：2005 ISO 683-18：1996對應(yīng)德國牌號：4(1.7201)；對應(yīng)英國牌號：1501-620Gr·27；對應(yīng)法國牌號：12CD4熱處理規(guī)范及金相組織：交貨狀態(tài)：以熱處理（正火、退火或高溫回火）或不熱處理狀態(tài)交貨，交貨狀態(tài)應(yīng)在合同中注明。化學(xué)成分播報編輯12Crmo鋼板●化學(xué)成份：碳 C ：0.10～0.15硅 Si：≤0.30錳 Mn：0.60-0.90硫 S ：≤0.025磷 P ：≤0.025鉻 Cr：0.40-0.70 [1]銅 Cu：≤0.25鉬 Mo：0.15～0.25鎳 Ni：≤0.025力學(xué)性能播報編輯抗拉強度 σb (MPa)：≥410(42)鋼板屈服強度 σs (MPa)：≥265(27)伸長率 δ5 (%)：≥24斷面收縮率 ψ (%)：≥60沖擊功 Akv (J)：≥110沖擊韌性值 αkv (J/cm2)：≥137(14)硬度 ：≤179HB試樣尺寸：試樣毛坯尺寸為30mm表示方法播報編輯① 鋼號開頭的兩位數(shù)字表示鋼的碳含量，以平均碳含量的萬分之幾表示，如40Cr、25Cr2MoVA合金管②鋼中主要合金元素，除個別微合金元素外，一般以百分之幾表示。當(dāng)平均合金含量＜1.5%時，鋼號中一般只標(biāo)出元素符號，而不標(biāo)明含量，但在特殊情況下易致混淆者，在元素符號后亦可標(biāo)以數(shù)字"1"，例如鋼號"V"和"12Cr1MoV"，前者鉻含量為0.4-0.6%，后者為0.9-1.2%，其余成分全部相同。當(dāng)合金元素平均含量≥1.5%、≥2.5%、≥3.5%……時，在元素符號后面應(yīng)標(biāo)明含量，可相應(yīng)表示為2、3、4……等。例如18Cr2Ni4WA。③鋼中的釩V、鈦Ti、鋁AL、硼B(yǎng)、稀土RE等合金元素，均屬微合金元素，雖然含量很低，仍應(yīng)在鋼號中標(biāo)出。例如20MnVB鋼中。釩為0.07-0.12%，硼為0.001-0.005%。④高級優(yōu)質(zhì)鋼應(yīng)在鋼號最后加"A"，以區(qū)別于一般優(yōu)質(zhì)鋼。⑤專門用途的合金結(jié)構(gòu)鋼，鋼號冠以（或后綴）代表該鋼種用途的符號。例如鉚螺專用的30CrMnSi鋼，鋼號表示為ML30CrMnSi。新手上路成長任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權(quán)信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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683-18:1996對應(yīng)德國牌號:12CrMo4(1.7201);對應(yīng)英國牌號:1501-620Gr·27;對應(yīng)法國牌號:12CD4熱處理規(guī)范及金相組織:交貨狀態(tài):以熱處理(正火、退火或高溫回火)或不熱處理狀態(tài)交貨，交貨狀態(tài)應(yīng)在合同中注明。折疊編輯本段化學(xué)成分●化學(xué)成份:碳 C :0.10~0.15硅 Si:≤0.30錳 Mn:0.60-0.90硫 S :≤0.025磷 P :≤0.025鉻 Cr:0.90-1.20銅 Cu:≤0.25鉬 Mo:0.15~0.25折疊編輯本段力學(xué)性能抗拉強度 σb (MPa):≥410(42)12CrMo鋼板12CrMo鋼板屈服強度 σs (MPa):≥265(27)伸長率 δ5 (%):≥24斷面收縮率 ψ (%):≥60沖擊功 Akv (J):≥110沖擊韌性值 αkv (J/cm²):≥137(14)硬度 :≤179HB試樣尺寸:試樣毛坯尺寸為30mm
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