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1.10%～1.50%）用于低沖擊件，ZGMn13—2（C1.00%～1.40%）用于普通件，ZGMn13—3（C0.90%～1.30%）用于復雜件，ZGMn13-4（C0.90%~1.20%）用于高沖擊件。中文名簡 稱Mn13鋼板別名 Mn13軋制鋼板目錄1化學成分2材料性能3適用范圍化學成分播報編輯這類鋼含錳10%～15%，碳含量較高，一般為0.90%～1.50%，大部分在1．0%以上。其化學成分為(%)：C0．90～1.50Mn10.0～15.0Si0．30～1.0S≤0.05P≤0.10這類高錳鋼的用量最多，常用來制作挖掘機的鏟齒、圓錐式破碎機的軋面壁和破碎壁、顎式破碎機岔板、球磨機襯板、鐵路轍岔、板錘、錘頭等。上述成分的高錳鋼的鑄態(tài)組織通常是由奧氏體、碳化物和珠光體所組成，有時還含有少量的磷共晶。碳化物數(shù)量多時，常在晶界上呈網(wǎng)狀出現(xiàn)。因此鑄態(tài)組織的高錳鋼很脆，無法使用，需要進行固溶處理。通常使用的熱處理方法是固溶處理，即將鋼加熱到1050～1100℃，保溫消除鑄態(tài)組織，得到單相奧氏體組織，然后水淬，使此種組織保持到常溫。熱處理后鋼的強度、塑性和韌性均大幅度提高，所以此種熱處理方法也常稱為水韌處理。熱處理后力學性能為：σb615～1275MPa σ 0.2340～470MPa ζ15%～85% ψ15%～45% aKl96～294J/cm2 HBl80～225 高錳鋼經(jīng)過固溶處理后還會有少量的碳化物未溶解，當其數(shù)量較少符合檢驗標準時，仍可使用。 奧氏體組織的高錳鋼受到?jīng)_擊載荷時，金屬表面發(fā)生塑性變形。形變強化的結(jié)果，在變形層內(nèi)有明顯的加工硬化現(xiàn)象，表層硬度大幅度提高。低沖擊載荷時，可以達到HB300～400，高沖擊載荷時，可以達到HB500～800。隨沖擊載荷的不同，表面硬化層深度可達10～20mm。高硬度的硬化層可以抵抗沖擊磨料磨損。材料性能播報編輯高錳鋼在強沖擊磨料磨損條件下，有優(yōu)異的抗磨性能，故常用于礦山、建材、火電等機械設備中，制作耐磨件。在低沖擊工況條件下，因加工硬化效果不明顯，高錳鋼不能發(fā)揮材料的特性。 中國常用的高錳鋼的牌號及其適用范圍是：ZGMn13—1(C 1.10%～1.50%)用于低沖擊件，ZGMn13—2(C1.00%～1.40%)用于普通件，ZGMn13—3(C0.90%～1.30%)用于復雜件，ZGMn13-4(C0.90%~1.20%)用于高沖擊件。以上4種牌號鋼的錳含量均為11.0%～14.0%。 在沖擊載荷作用的冷變形過程中，由于位錯密度大量增加，位錯的交割、位錯的塞積及位錯和溶質(zhì)原子的交互作用使鋼得到強化。這是加工硬化的重要原因。另一個重要原因則是高錳奧氏體的層錯能低，形變時容易出現(xiàn)堆垛層錯，從而為ε馬氏體的形成和形變孿晶的產(chǎn)生創(chuàng)造了條件。常規(guī)成分的高錳鋼的形變硬化層中常可以看到高密度位錯、位錯塞積和纏結(jié)。ε馬氏體和形變孿晶的出現(xiàn)使鋼難以變形，尤其是后者的作用更大。上述各種因素都使高錳鋼的硬化層得到很高程度的強化，硬度大幅度提高。 高錳鋼極易加工硬化，因而很難加工，絕大多數(shù)是鑄件，極少量用鍛壓方法加工。高錳鋼的鑄造性能較好。鋼的熔點低(約為14()()℃)，鋼的液、固相線溫度間隔較小，(約為50℃)，鋼的導熱性低，因此鋼水流動性好，易于澆注成型。高錳鋼的線膨脹系數(shù)為純鐵的1．5倍，為碳素鋼的2倍，故鑄造時體積收縮和線收縮率均較大，容易出現(xiàn)應力和裂紋。為提高高錳鋼的性能進行過很多合金化、微合金化、碳錳含量調(diào)整和沉淀強化處理等方面的研究，并在生產(chǎn)實踐中得到應用。介穩(wěn)奧氏體錳鋼的出現(xiàn)則可較局gao大幅度降低鋼中碳、錳含量并使鋼的形變強化速度提高，可適用于高和中低沖擊載荷的工況條件，這是高錳鋼的新發(fā)展。適用范圍播報編輯具有高的抗拉強度、塑性和韌性以及無磁性，即使零件磨損到很薄， 仍能承受較大的沖擊載荷而不致破裂，可用于鑄造各種耐沖擊的磨損件， 如球磨機襯板、挖掘機斗齒、破碎機牙板等。一般用于結(jié)構(gòu)簡單， 要求以耐磨為主的低沖擊鑄件，如襯板、齒板、破碎壁、軋臼壁、輥套和鏟齒。新手上路成長任務編輯入門編輯規(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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碳素結(jié)構(gòu)鋼和低合金結(jié)構(gòu)鋼熱軋厚鋼板和鋼帶GB/T247 鋼板驗收、包裝、標志及質(zhì)量證明書的一般規(guī)定 3 尺寸、外形及允許偏差3.1 Mn13高錳鋼成品規(guī)格 3.0～40.0×900上×L（mm）3.2 Mn13鋼板力保不平度≤10mm/m，但不作為判定依據(jù)。尺寸允許偏差執(zhí)行GB/T709規(guī)定。 4 技術(shù)要求4.1 Mn13化學成分 牌號CMnSPSiMn130.90～1.2011.00～14.00≤0.030≤0.0350.3～0.8注：1)成分允許偏差執(zhí)行GB/T222規(guī)定。2)鋼中可添加其他化學元素。4.2 軋制Mn13成品力學和工藝性能成品以Rm及HB值為判定依據(jù)，其結(jié)果應符合下表規(guī)定。同時提供延伸率A、常溫Akv及冷彎(90°，B=2a，d＝2a)的實測值。牌號厚度（mm）Rm(MPa)HBMn133.0～40.0≥700≥170 注：拉伸、冷彎及沖擊試驗均取橫向試樣。 4.3 交貨條件 鋼板以熱處理狀態(tài)交貨4.4 表面質(zhì)量執(zhí)行GB3274規(guī)定。 5 檢驗規(guī)則執(zhí)行GB3274規(guī)定。 6 試驗方法見下表 序號項目取樣方法試驗方法1化學成分GB/T222GB/T2232拉伸試驗GB/T2975GB/T2283彎曲試驗GB/T2975GB/T2324常溫沖擊GB/T2975GB/T2295布氏硬度
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