常用滲氮鋼種及滲氮的工藝參數(shù)

常用滲氮鋼種類別鋼號滲氮厚的主要性能主要用途及備注低碳鋼08,08Al,10,15,20,A3,20Mn,30,35抗大氣與水的腐蝕螺栓、螺帽、銷釘、把手等零件中碳鋼及中碳低合金鋼40,45,50,40Cr,50V提高耐磨與抗疲勞性能或提高耐大氣及水的腐蝕性能曲軸，階梯軸，低檔齒輪等零件低碳合金鋼18Cr2Ni4WA18CrNiWA,20Cr20CrMnTi,25CrNiWA,25CrNiWA,25Cr2MoVA耐磨、抗疲勞性能優(yōu)良且心部韌性高，可在受沖擊條件下工作輕負荷齒輪、齒圈等中、高檔精密零件中碳合金鋼38CrMoAlA,38Cr2MoAlA35CrMo,35CrNiMoA,42CrMo,40CrNiMoA,30Cr3WA,30CrMnSiA,30Cr2Ni2WVA,40Cr,38CrWVAlA,50CrVA耐磨性抗疲勞性能優(yōu)良，心部強韌好，38CrMoAlA及38Cr2MoAlA滲氮后硬度很機床主軸，鏜桿坦克及飛機發(fā)動高耐磨性優(yōu)良，抗疲勞性較好，但不宜機主軸等受沖擊模具鋼Crl2,Crl2Mo,Crl2MoV,3Cr2W8,3Cr2W8V,4Cr5MoVSi,4Cr5W2VSi,5CrNiMo5CrMnMo耐磨，抗熱疲勞，紅硬性良好，有一定冷沖模，拉伸模，落料模，非鐵的抗沖擊疲勞性能 金屬壓鑄模等模具工具鋼W18Cr4V,W6Mo5Cr4V2,W18Cr4VCo5耐磨性及紅硬性優(yōu)良高速鋼銑刀等多種刃具鐵素體型、奧4Crl3,2Crl3,3Crl34Crl3,15CrllMoV,15Crl2MoV,氏體型及馬氏lCrl8Ni9Ti,45Crl4Ni,14W2Mo,25Crl8Ni8W2,17Crl8Ni9,體時效硬化型40Crl4Ni9Cr3AlV2,lCrl4Nil4W2Mo,lCrl7Nil3Mo2Nb,鋼 3Crl9Ni9MoWNbTi耐磨性，紅硬性及高溫強度優(yōu)良，能在紡紗機走絲槽，在腐蝕介質(zhì)中工500?600°C服役,經(jīng)滲氮后耐蝕性有不作的泵軸，葉輪、中殼等液壓件同程度地降低，但在許多介質(zhì)中仍有較以及在500?600C環(huán)境中工作好的耐蝕性 且要求耐磨的零件高鈦滲氮專用鋼30CrTi2,30CrTi2Ni3Al耐磨性優(yōu)良，紅硬性及抗疲勞性能好承受劇烈的磨粒磨損且不承受沖擊的零件幾種鋼在氨中滲氮的工藝參數(shù)鋼號滲氮工藝滲氮層厚度(mm)表面層硬度(HV10)典型工件階段溫度(C)時間(h)氨分解率％38CrMoAlA510±103520?400.30?0.351000?1100鏜桿活塞桿38CrMoAlA510±108030?500.50?0.60±1000鏜桿活塞桿38CrMoAlA535±103530?500.45?0.55950?1100鏜桿活塞桿38CrMoAlA1515±102518?250.40?0.60850?1000十字銷卡塊大齒圈螺桿38CrMoAlA2550±104550?600.40?0.60850?1000十字銷卡塊大齒圈螺桿38CrMoAlA1510±1010?1215?300.50?0.80280HR30N十字銷卡塊大齒圈螺桿38CrMoAlA2550±1048?5835?650.50?0.80280HR30N十字銷卡塊大齒圈螺桿38CrMoAlA1510±108?1015?350.30?0.40>700齒輪38CrMoAlA2550±1012?1435?650.30?0.40>700齒輪38CrMoAlA3550±103>900.30?0.40>700齒輪38CrMoAlA510±1035?5520?400.30?0.55850-950曲軸38CrMoAlA500±105015?300.45?0.50550-650曲軸40CrNiMoA520±102525?350.35?0.55268HR30N曲軸40CrNiMoA1520±102025?350.40?0.70283HR15N曲軸40CrNiMoA2545±1010?1535?500.40?0.70283HR15N曲軸25CrNi4WA1520±101025?350.25?0.40±73HRA受沖擊或重載零件

30Cr3WA2520±104025?400.40?0.6060?70HRC曲軸等35CrNi3WA1505±104015?35三0.7>45HRC曲軸等35CrNi3WA2525±105040?60三0.7>45HRC曲軸等35CrMo520±1060?7050?600.6?0.7560?650曲軸等35CrMo1505±102518?300.6?0.7560?650曲軸等35CrMo2520±102530?500.5?0.6650?700曲軸等50CrVA460±1015?2010?200.15?0.25彈簧50CrVA480±107?915?350.15?0.25彈簧40Cr490±102415?350.20?0.30±550齒輪40Cr1520±1010?1525?350.20?0.30±550齒輪40Cr2540±105235?500.50?0.70±50HRC齒輪18CrNiWA490±103025?300.20?0.30±600軸18Cr2Ni4A500±103515?300.25?0.30650?750軸1Cr13510±105520?400.15?0.25950?1050要求耐磨，抗疲勞抗蝕的零件1Cr13550±104825?400.25?0.30900?950要求耐磨，抗疲勞抗蝕的零件2Cr13500±104815?250.10?0.121000?1050要求耐磨，抗疲勞抗蝕的零件2Cr13550±105040?450.25?0.35850?950要求耐磨，抗疲勞抗蝕的零件15CrllMoV1530±101030?350.30?0.40900?950要求耐磨，抗疲勞抗蝕的零件15Crl2WMoV2580±102050?650.30?0.40900?950要求耐磨，抗疲勞抗蝕的零件4Cr14Ni14W2-Mo510±103518?230.04?0.0680?85HR要求耐磨，抗疲勞抗蝕的零件4Cr14Ni14W2-Mo560±106025?400.10?0.1215N800?900要求耐磨，抗疲勞抗蝕的零件4Cr14Ni14W2-Mo630±104050?800.08?0.14±80HR15N要求耐磨，抗疲勞抗蝕的零件25Cr18Ni18W2550±105540?550.15?0.22850?1000要求耐磨，抗疲勞抗蝕的零件25Cr18Ni18W2600±102435?500.12?0.16850?950要求耐磨，抗疲勞抗蝕的零件4Cr14Ni2W255±105540?550.18?0.25900?1000要求耐磨，抗疲勞抗蝕的零件4Cr14Ni2W2570±105545?600.20?0.30800?900要求耐磨，抗疲勞抗蝕的零件Cr10Si2Mo590±1035?3730?700.20?0.3084HR15N要求耐磨，抗疲勞抗蝕的零件lCrl8Ni9Ti570±108035?550.20?0.30900?1000要求耐磨，抗疲勞抗蝕的零件lCrl8Ni9Ti1545±103025?400.20?0.30±900模具1Cr18Ni9Ti2565±104535?600.20?0.30±900模具3Cr2W8V535±1012?1625?400.15?0.201000?1100模具4Cr5W2VSi560±105520?450.45?0.55700?750模具Crl2,Crl2Mo1480±101814?27W0.20700?800模具Cr12MoV2530±102230?60W0.20700?800模具500±1030Cr3WA400.40?0.60160?70HRC15?2525CrNi4WA25CrNi4WA30Cr2Ni2WVA30Cr2Ni2WA30CrMnSiA550±10500±10520±10500±10500±101012355525?3045?6550?7015?3015?3020?300.25?0.400.25?0.400.2525CrNi4WA25CrNi4WA30Cr2Ni2WVA30Cr2Ni2WA30CrMnSiA550±10500±10520±10500±10500±101012355525?3045?6550?7015?3015?3020?300.25?0.400.25?0.40