牌号：35与30号钢的性能相似，有好的塑性和适当的强度，多在正火状态和调质状态下使用，一般不用于焊接，焊接性能一般，焊前需预热，焊后回火处理；可表面淬火，表面淬火硬度一般为HRC35-45，用于制造热锻和热冲压的机械零件，冷拉和冷顶锻用钢材，无缝钢管，机械制造用的零件，如转轴、曲轴、轴销、杠杆、连杆、横梁、星轮、套筒、轮圈、钩环、垫圈、螺钉、飞轮、机身、法兰等；在锅炉制造中用作温度不高于425℃的螺栓和不高于450℃的螺母。生产品种圆钢、方钢、六角钢、扁钢、热轧厚钢板和宽带钢、热轧和冷轧薄钢板和钢带、线材、钢丝、钢管。牌号：40具有较高的强度，加工性能良好，冷变形时塑性中等。可焊接，但焊前需预热，焊后应热处理。用这种钢制造的零件一般需经淬火和回火。表面可淬火，表面淬火硬度一般为HRC38-48。用于制造机器的运动零件；心部强度要求不高表面耐磨性好的淬火零件及截面尺寸较小、负截较大的调质零件；应力不大的大型正火件，如辊子、轴、曲轴、传动轴、活塞轴、连杆、齿轮、圆盘，以及火车轴等。生产品种圆钢、方钢、六角钢、扁钢、热轧厚钢板和宽带钢、热轧和冷轧薄钢板和钢带、线材、钢丝。低合金铸钢:GS-16MN51.1131GS-20MN51.1120GS-8MN71.5015GS-8MNMO741.5430GS-13MNNI641.6221GS-24Mn61.1118GS-24Mn41.1136GS-215Mn51.1138GS-Ck161.1142GS-CK241.1156GS-CK251.1155GS-CK451.1191GS-46Mn41.1159GS-30Mn51.1165GS36Mn51.1167GS-40Mn51.1168GS-40CrMnMoV71.2311GS-48CrMoV6-71.2323GS-80CrVw431.2590GS-55NiCrMoV61.2713GS-20MoNi33-131.2778GS-34CoCrMoV19-121.2887GS-20CoCrWMo10-91.2888GS-38MnSi41.5120GS-46MnSi41.5121GS-37MnSi51.5122GS-20mOv8-41.5406GS-20MnMo531.5418GS-12MnMo741.5431GS-20MnNb51.5475GS-20MnNiTi531.5485GS-10Ni61.5621GS-24Ni81.5633GS-10Ni141.5638GS10Ni141.5681GS-15CrNi61.5919GS-22MnNi51.6219GS-20MnMoNi551.6309GS-36CrNiMo41.6511GS-25CrNiMo41.6515GS-24CrNiMo3-251.6552GS-30NiCrMo851.6570GS-34CrNiMo61.6582GS-33NiCrMo7441.6740GS-38NiCrMo8441.6741GS-40NiCrMo6561.6748GS-20NiMoCr371.6750GS-18NiMoCr361.6759GS-18NiMoCr361.6759GS-22NiMoCr561.6760GS-14NiCrMo1061.6779GS-18NiCrMo1261.6781GS-19NiCrMo1261.6783GS-12MnCrNiMo531.6916GS-16MnCr51.7131GS-20MnCr51.7147GS-25CrMo41.7218GS-26CrMo41.7219GS-34CrMo41.7220GS-42CrMo41.7225GS-20CrMo41.7228GS-34CrMo441.7341GS-22CrMo541.7354GS-17CrMnMo551.7355GS-12CrMo1951.7363GS-17CrMo9101.7377GS-12CrMo9101.7380GS-19CrMo9101.7382GS-30CrMoV641.7725GS-35CrMoV1041.7755GS-36CrMoV1041.7756GS-18MnCrMo631.7903GS-19MnCrMo631.7906GS-20MnCrMo631.7909GS-50CrV41.8159我厂一贯秉承"******，顾客至上"的宗旨，热情为你提供优质服务，热诚地欢迎您的光临)