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30#碳素鋼特種鋼板-碳素鋼/模具鋼系列
專業(yè)為您提供碳素鋼/模具鋼系列牌號(hào)，材質(zhì)單，在線報(bào)價(jià)單 歡迎選購
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.index-module_wrapperBg__OKK1h{background-image:url(https://baikebcs.bdimg.com/baike-common/sdks/drawer_bg_new.png);background-position:top;background-repeat:no-repeat;background-size:cover;height:871px;left:0;position:absolute;top:0;width:100%}.index-module_drawerHand__aRhcO{align-items:center;background-image:url(https://baikebcs.bdimg.com/baike-common/sdks/drawer_hand_bg.png);background-position:50%;background-repeat:no-repeat;background-size:contain;cursor:pointer;display:flex;height:72px;justify-content:center;position:fixed;right:0;top:50%;transform:translateY(-36px);transition:all .2s ease-in;width:20px}.index-module_drawerHand__aRhcO .index-module_taskLogo__71Tj5{height:66px;position:absolute;right:30px;top:0;width:66px}.index-module_drawerHand__aRhcO.index-module_open__qMl5O{right:480px}.index-module_reverse__OKr6k{transform:rotate(180deg)}網(wǎng)頁新聞貼吧知道網(wǎng)盤圖片視頻地圖文庫資訊采購百科百度首頁登錄注冊(cè)進(jìn)入詞條全站搜索幫助首頁秒懂百科特色百科知識(shí)專題加入百科百科團(tuán)隊(duì)權(quán)威合作個(gè)人中心30播報(bào)討論上傳視頻自然數(shù)之一展開7個(gè)同名詞條收藏查看我的收藏0有用+1030（三十）是29與31之間的自然數(shù)、正整數(shù)，是一個(gè)偶數(shù)，也是一個(gè)有理數(shù)。30=2*3*5。中文名三十（卅）外文名thirty大 寫叁拾因數(shù)分解2×3×5羅馬數(shù)字XXX二進(jìn)制11110三進(jìn)制1010四進(jìn)制132八進(jìn)制36十二進(jìn)制26十六進(jìn)制1E目錄1數(shù)學(xué)性2在人類文化中3在其它領(lǐng)域中4在科學(xué)中數(shù)學(xué)性播報(bào)編輯1.語言進(jìn)制信息表二進(jìn)制：11110八進(jìn)制：36十六進(jìn)制：1E羅馬數(shù)字：XXX2.是29與31之間的自然數(shù)。 是一個(gè)阿拉伯?dāng)?shù)字。3.分解質(zhì)因數(shù) 2×3×54.第19個(gè)合數(shù)，正約數(shù)有1、2、3、5、6、10、15和30。前一個(gè)為28、下一個(gè)為32。5.最小的可以擁有3種質(zhì)因數(shù)的數(shù)。6.屬于有形數(shù)1.首4個(gè)平方數(shù)的和2.第4個(gè)正方錐數(shù)7.正十二面體和正二十面體都有30條棱8.第5個(gè)過剩數(shù)，真約數(shù)和為42，盈度為12。前一個(gè)為24、下一個(gè)為36。1.第7個(gè)半完全數(shù)，和為本身的其中一組約數(shù)為1、3、5、6、15。前一個(gè)為28、下一個(gè)為36。9.半完全數(shù)：5+10+15=3010.哈沙德數(shù)（尼云數(shù)）：最小的可擁有8個(gè)正整約數(shù)的數(shù)。11.30±1為孿生質(zhì)數(shù)。12.第4個(gè)佩服數(shù)，相減后為本身的約數(shù)為6。前一個(gè)為24、下一個(gè)為40。13.第19個(gè)無平方數(shù)因數(shù)的數(shù)。前一個(gè)為29、下一個(gè)為31。14.第1個(gè)楔形數(shù)。下一個(gè)為42。15.第6個(gè)普洛尼克數(shù)，為5與6的乘積。前一個(gè)為20、下一個(gè)為42。16.第3個(gè)素?cái)?shù)階乘，即前3個(gè)素?cái)?shù)的乘積。前一個(gè)為6、下一個(gè)為210。17.第17個(gè)十進(jìn)制的哈沙德數(shù)。前一個(gè)為27、下一個(gè)為36。18.第12個(gè)十進(jìn)制的奢侈數(shù)。前一個(gè)為28、下一個(gè)為33。19.正三十邊形為第13個(gè)可作圖多邊形。前一個(gè)為24、下一個(gè)為32。20.一對(duì)相容數(shù)之一（30、40）21.素?cái)?shù)階乘22.最大的數(shù)使得與它互素且比其小之自然數(shù)除了1均為素?cái)?shù)23.第3個(gè)十一邊形數(shù)在人類文化中播報(bào)編輯1.論語中記載孔子三十歲時(shí)，因之前十五年的經(jīng)驗(yàn)，已經(jīng)滿足他在世上立足的目的，自稱“三十而立” 。 [1]2.陽歷其中4個(gè)月有30日 （4、6、9、11月）。3.農(nóng)歷中大月的天數(shù)4.論語中記載孔子自稱“三十而立”5.農(nóng)歷中年三十晚是除夕（農(nóng)歷十二月是小月的年份則在二十九）6.饑餓三十7.NBA、NHL、MLB各有30支球隊(duì)。在地理學(xué)中30為中低緯度的分界，在經(jīng)度中為東、西二時(shí)區(qū)的中央經(jīng)線的經(jīng)度數(shù)。在其它領(lǐng)域中播報(bào)編輯澄海3C中英雄到了30級(jí)可以學(xué)習(xí)的終極技能。英雄聯(lián)盟中30級(jí)可以參加排位比賽的。是DOTA、DOTA2中裝備道具"凈魂之刃"的簡稱。在科學(xué)中播報(bào)編輯鋅的原子序數(shù)。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(bào)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(tái)?|?京ICP證030173號(hào)?京公網(wǎng)安備11000002000001號(hào)window.PAGE_DATA= 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30號(hào)鋼用作熱鍛和熱沖壓的機(jī)械零件、冷拉絲，重型和一般機(jī)械用的軸、拉桿、套環(huán) 、以及機(jī)械上用的鑄件，如汽缸、汽輪機(jī)機(jī)架、軋鋼機(jī)機(jī)架和零件、機(jī)床機(jī)架及飛輪等。與低碳鋼相比，強(qiáng)度、硬度均較高，具有較好的韌性、焊接性，此鋼大多在正火狀態(tài)下使用，也可進(jìn)行調(diào)質(zhì)處理。用途：適用于采用熱鍛、熱壓及切削加式方法，制造截面較小，受力不大工作溫度≤150℃的零件，如絲桿、拉桿、軸鍵、吊環(huán)、齒輪、套筒等；切削性能良好，廣泛應(yīng)用于自動(dòng)機(jī)床上加工的螺栓、螺釘?shù)?；也適用于制造需冷頂鍛零件及焊接件；還可用作滲碳、碳氮共滲等零件。力學(xué)性能30號(hào)鋼力學(xué)性能：抗拉強(qiáng)度 σb (MPa)≥49,屈服強(qiáng)度 σs (MPa)≥295,伸長率 δ5 (%)≥21,斷面收縮率 ψ (%)≥50,沖擊功 Akv (J)≥63,硬度:未熱處理≤179HB,試樣毛坯尺寸:25mm熱處理工藝：880℃正火、860℃淬火、600℃回火。焊接性能30號(hào)鋼和45號(hào)鋼它們唯一接合性較好之中硬度鋼焊條，適用于空冷鋼、鑄鋼：如ICD5、7CrSiMnMoV…等等。汽車板金覆蓋件模具及大型五金板金沖壓模具之拉延、拉伸部位修補(bǔ)，也可用于硬面制作。 另外在使用時(shí)也有一些需要注意的：于潮濕場地施工前，焊條先以150-200°C烘干30-50分鐘。2. 通常施以200°C以上預(yù)熱，焊接后空冷，可能的話最好實(shí)施應(yīng)力消除。3. 需多層堆焊處，以CMC-E30N打底，可得到較好的焊接效果。硬度 HRC 48-52主要成份 Cr Si Mn C適用電流范圍：直徑及長度m/m 3.2*350mm 4.0*350mm電流范圍（Amp） 70-100 130-150化學(xué)成分30號(hào)鋼化學(xué)成分：含碳(C)0.27～0.34,錳(Mn)0.50～0.80,鎳(Ni)≤0.30,硅(Si)0.17～0.37,磷(P)≤0.035,硫(S)≤0.035,鉻(Cr)≤0.25,銅(Cu)≤0.25價(jià)格標(biāo)準(zhǔn)判斷鋼材價(jià)格的標(biāo)準(zhǔn)是看雜質(zhì)元素的含量的 也就是硫（S）和磷（P）的含量多少來看的按鋼的質(zhì)量分類（根據(jù)鋼中有害雜質(zhì)硫、磷含量的多少可分為：①普通碳素鋼 S≤0.055% P≤0.045%②優(yōu)質(zhì)碳素鋼 S≤0.035% P≤0.035%③高級(jí)優(yōu)質(zhì)鋼 S≤0.025% P≤0.025%④特級(jí)質(zhì)量鋼 S≤0.015% P≤0.015%
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