碳素钢是近代工业中使用***早、用量***大的基本材料。世界各工业***，在努力增加低合金高强度钢和合金钢产量的同时,也非常注意改进碳素钢质量,扩大品种和使用范围。目前碳素钢的产量在各国钢总产量中的比重,约保持在80％左右,它不仅广泛应用于建筑、桥梁、铁道、车辆、船舶和各种机械制造工业，而且在近代的石油化学工业、海洋开发等方面，也得到大量使用。碳素钢按化学成分（即以含碳量）可分为低碳钢、中碳钢和高碳钢。(1)低碳钢又称软钢,含碳量从0.10％至0.30%低碳钢易于接受各种加工如锻造,焊接和切削,常用於制造链条,铆钉,螺栓,轴等。(2)中碳钢碳量0.25％～0.60％的碳素钢。有***钢、半***钢、沸腾钢等多种产品。除碳外还可含有少量锰(0.70％～1.20％)。按产品质量分为普通碳素结构钢和优质碳素结构钢。热加工及切削性能良好，焊接性能较差。强度、硬度比低碳钢高，而塑性和韧性低于低碳钢。可不经热处理，直接使用热轧材、冷拉材，亦可经热处理后使用。淬火、回火后的中碳钢具有良好的综合力学性能。能够达到的***高硬度约为HRC55(HB538)，σb为600～1100MPa。所以在中等强度水平的各种用途中，中碳钢得到***广泛的应用，除作为建筑材料外，还大量用于制造各种机械零件。（3）高碳钢常称工具钢,含碳量从0.60%至1.70%,可以淬硬和回火。锤,撬棍等由含碳量0.75%的钢制造;切削工具如钻头,丝攻,铰刀等由含碳量0.90%至1.00%的钢制造。用途用于制造承载较小的零件、铁丝、铁圈、垫铁、开口销、拉杆、冲压件以及焊接件等。用于制造拉杆、套圈、垫圈、渗圈、渗碳零件以及焊接件等。用于制造金属结构件、心部强度要求不高的渗碳件或碳氮共渗件、拉杆、连杆、吊钩、车钩、螺栓、螺母、套筒、轴以及接件；C、D级用于制造重要的焊接结构件。用于制造转轴、心轴、吊钩、拉杆、摇杆、楔等强度要求不高的零件。此负焊接性尚可。用于制造轴类、链轮、齿轮、吊钩等强度要求高的零件。不锈钢：1Cr18Mn8Ni5NSUS202AISI202S20200284S16X12CrNi177Z12CN17.071Cr17Ni7SUS301AISI301S30100301S21X12CrNi188Z10CN18.091Cr18Ni9SUS302AISI302S30200302S25X5CrNi189Z6CN18.090Cr18Ni9SUS304AISI304S30300304S15X2CrNi189Z2CN18.0900Cr19Ni10SUS304LAISI304LS30403304S12Z5CN18.09A20Cr19Ni9NSUS304N1AISI304NS30451X2CrNiN1810Z2CN18.10N00Cr18Ni10NSUS304LNX5CrNi1911Z8CN18.121Cr18Ni12SUS305AISI305S30500305S190Cr23Ni13SUS309SAISI309SS309080Cr25Ni20SUS310SAISI310SS31008X5CrNiMo1812Z6CND17.120Cr17Ni12Mo2SUS316AISI316S3160316S16X2CrNiMo1812Z2CND17.1200Cr17Ni14Mo2SUS316LAISI316LS31603316S120Cr17Ni12Mo2NSUS316NAISI316NS3165100Cr18Ni14Mo2Cu2SUS316JlL0Cr19Ni13Mo3SUS317AISI317S31700317S16X2CrNiMo1816Z2CN19.1500Cr19Ni13Mo3SUS317LAISI317LS31703317S12X10CrNiTi1891Cr18Ni9Ti0Cr19Ni10TiSUS321AISI321S32100321S12321S20X10CrTi189Z6NT18.100Cr18Ni11NbSUS347AISI347S34700347S17X10CrNiNb189Z6NNb18.100Cr13AlSUS405AISI405S40500405S17X71CrAl13Z6CA131Cr17SUS430AISI430S43000430S15X8Cr17Z8C1700Cr27MoSUSXM27AISIXM27S44625Z01CD26.11Cr12SUS403AISI403S40300403S171Cr13SUS410AISI410S41000410S21X10Cr13Z12C130Cr13SUS410SAISI410S403S17X7Cr13Z6C131Cr13MoSUS410J12Cr13SUS420J1AISI420S42000420S37X20Cr13Z20C133Cr13SUS420J2420S45Z15CN16.021Cr17Ni2SUS431AISI431S43100431S29X22CrNi177Cr17SUS440AAISI440S440028Cr17SUS440BAISI440AS44003Z100CD179Cr18SUS440CAISI440CX105CrMo17Z6CNU17.040Cr17Ni4Cu4NbSUS630AISI630S17400Z8CNA17.70Cr17Ni7AlSUS631AISI631S17700X7CrNiAl177合结钢：20MN2SAE1320150M19***N42020MN530MN2SAE1330150M28***N433H30MN535MN2SAE1335150M36***N43836MN540MN2SAE1340***N44340M45MN2SAE1345***N44346MN750MN220MNV20MNV635SIMN37MNSI542SIMN46MNSI440MNBSAE14***14B3550B4045MNBSAE50B4415MNV15CRSAE5115523M15SCR41515CR320CRSAE5120527A19SCR42020CR430CRSAE5130530A30SCR43028cr435CRSAE5132530A36SCR430H34CR440CRSAE5140520M40SCR44041CR445CRSAE51455147SCR445534A9938CRSI12CRMO13CRMO441.7335SAE411912CRMOV15CRMO16CRMO4415CRMO51.726220CRMOSAE411820CRMO4420CRMO51.726425CRMOSAE412525CRMO41.7218SS222530CRMOSAE4130SCM42030CD435CRMOSAE4135SCM43534CRMO41.722042CRMOSAE4140708A4242CD442CRMO41.722512CR1MOV13CRMOV4225CR2MO1VA25CR2MOVA24CRMOV551.773320CRVSAE612022CRV41.751040CRVSAE614042CRV630CRMNSIA50CRVASAE6150735A30SUP1050CRV41.8159SS223015CRMNSAE5115G5115016MNCR51.7131SS251120CRMNSAE51525120***N***2020MNCR51.714740CRNISAE3140640M40SNCM23640NICR61.571120CRNI3SAE331620CRNI1430CRNI3SAE3435653M31SNCM83620MNMOBSAE80B20SCM42138CRMOAL905M39SACM64541CRALMO740CRNIMOSAE4340SNCM43936CRNIMO41.651140CRNIMOASAE4340871M4040NICRMO2230CRMNSI20CRMNMOSCM421SAE411940CRMNMOSCM44042CRMO41.722520CRMNTI30MNCRTI41.840130CRMNTI20CRNIMOSNCM220SAE8620弹簧钢：60SAE1060080A62S58CC60ECK6065SUP2SAE1065G10650CK671.1231SS177070SAE1070SS1778070A72CK751.1248SAE107885CK851.1269060A86SAE1086SUP365MNSAE1066080A6755SI2MNSAE9255250A53SUP655SI760SI2MNSUP660SI71.090950CRVASUP10SAE615050CRV41.815955SICRASUP12SAE925454SICR61.710255CRMNASUP9SAE515555CR31.717660CRMNASUP9ASAE5160SUP760CRMNMOASUP13SAE416051CRMOV41.770160CRMNBASUP11ASAE51B6058CRMNB4轴承钢：GCR6SAE50100100CR21.3501GCR9SUJ1AISIE51100105CR41.3503GCR9SIMNSUJ3A485CR1100CRMNSI4-4B2GCR15SUJ2AISIE52100100CR61.3505GCR15SIMN100CRMN61.35029CR18SUS440C9CR18MOSUS440CX108CRMO17X102CRMO171.3543易车铁：Y12SUM21SAEB111210S201.0721Y15SUM32SAE111511***N28Y20SAE112022S201.0724Y30SAE113035S201.0726Y40MNSUM42SAE114144***N28Y15PBSUM22LSAE12L1311***NPB281.071812l14121511449***NPB369***N361.07371.073611***NPB3711***N3711***NPB3011***N309***NPB28冷镦钢：ML08ALSWRCH8ASAE1010QST34-3C7C1.0213ML10SWRCH10KSAE1012QST36-3C11C1.0214ML15SWRCH15KSAE1015CQ15C15C1.02341.1132ML20SWRCH20KSAE1020CQ22C22C1.1152ML25SWRCH25KSAE1025ML30SWRCH30KSAE1030ML35SWRCH35KSAE1034CQ35C35CML40SWRCH40KSAE1040ML45SWRCH45KSAE1044ML25MNSWRCH27KSAE1026ML30MNSWRCH30KSWRCH33KSAE1030ML35MNSWRCH35KSWRCH38KSAE1034ML15CRSAE511515CR21.7015ML20CRSAE5120ML40CRSAE514041CR41.7035ML15MNBSWRCH8620SAE1518ML30CRMOSAE413025CRMO41.7218ML35CRMOSAE413534CRMO41.7220ML42CRMOSAE414042CRMO41.7225碳素工具钢：T7SK7SK6SK70C70W21.1620C70UT8SK80SK6SK5C80W21.1625C80UT8AC80W1T8MNSK85SK5C85WS1.1830T10SK95SK4SK3C105W21.1645T12SK2SK120C125W21.1663T12AT13SK1SK140C130W21.1673合金工具钢：8MNSISKS95C75W1.17509SICR90CRSI51.2108CR2SUJ2102CR61.2067CR06SKS8140CR31.20089CR290CR31.2056WSKS21120W41.2414CR12SKD1D3X210CR121.2080CR12MOVSKD11X165CRMOV121.26019MN2VO290MNCRV81.28429CRWMNSKS3100MNCRW41.2510CRWMNSKS31105WCR61.24193CR2W8VSKD5X30WCRV9-31.25815CRMNMO40CRMNMO71.23115CRNIMOSKT4L655NICRMOV61.27134CR5MOSIVSKD6H11X38CRMOV5-11.23434CRW2SISKS415CRW2SIS145WCRV71.2542高速工具钢：W18CR4VSKH2T1HS18-0-1S18-0-11.33552750W6MO5CR4V2SKH51M2S6-5-21.33392722W18CR4VCO5SKH3T4S18-1-2-51.3255W2MO9CR4VCO8SKH59M42M41S2-10-1-81.32472716模具钢：PXZPX4PX5NAK55NAK80S-STARG-STARYK30DC11DC53DHA1DH21DH31-SDH2FDH42GFAMH51MH55MH8SGTGOADEX20DEX40DEX60PD613SUS420S50CH3100PX88PAK90QCM8MH85HPM1HPM2HPM7HPM38HPM50HPM75HPM77G20Cr2Ni4ACENA1DACSKD4SKD5SKD7SKD8SKT4SK3SK4SK5SKS3SKD11YEMYEM-KDA***5SKD61SKD62FDACDAC10DAC55SLDSLD8SLD10ARK1SGTYXM1YXM4YXR3YXR33SKH-9SKH-51SKH-55SKH-57SKH-59HAP10HAP40SUS420J2HAP72NP8NP9YSSYHD28YHD3K100DF-2XW-10XW-5XW-41618618H718718HS136S136H840284078416QRO-90HSP-41ASP23ASP30ASP60VANADIS-4VANADIS-10HOTVAR168S635ASSAB88ELMAXXW-42V-4S-7EM2VANCRON40RAMAX2POLMAXUNIMAXNIMAXMM40MMXLELMXXDIEVARP20231127382316208327674125234423672379284223632436251033433207TSP46582722512931285YE2311YE2738YE2083YE2316YE23441.85191.85501.32431.32471.21011.15451.20801.23121.27341.28401.28421.28851.26011.26061.27141.12101.71471.65231.65821.59191.5752M202M238M300M310M340M330W302W303W321K100K110K340K460S390PMS590PMS690PMS790PMS500S705A903W500K105K305N100N320N540N350E200E220E230E400F300F530V320V155V800V82042060617075D2D3H11H13OlO2M2M4L6M35M42A26F7T4243404140A345#50#Crl2Crl2MOVS200CS50C9CrSiH133Cr2W8VW18Cr4VT8AT10A40Cr35CrMO40CrMO654242CrMo40CrNiMo42CrNiMo5CrNiMo1Cr132Cr133Cr134Cr1320CrMnTi30CrMnTi38CrMoALW18W9Y35CAY12Y15Y20Y30Y40)