1、第三章日本工具鋼與硬質合金牌號及化學成分第一節JISG4401-2001碳素工具鋼鋼材熱軋和鍛制碳素工具鋼的生產品種有圓鋼、鋼板和鋼帶，以及其他鋼材。通常鋼材的鍛壓比應不小于4S(1)尺寸、形狀及允許偏差1)熱軋圓鋼的直徑為10mm-150mm。圓鋼直徑允許偏差和不圓度應符合表6-3-1的規定。表6-3-1公稱直徑直徑允許偏差/、圓度10-<16+0.6-0.3不大于直徑公差的70%16-<30+0.7-0.33-150+25%-1.0%注：圓鋼直徑小于10mm和大于150mm的直徑允許偏差按供需雙方協議。2）熱軋鋼板和鋼帶熱軋鋼板和鋼帶的標準厚度、寬度和長度應符合JISG3193

2、熱軋鋼板和鋼帶的尺寸、形狀、重量及其允許偏差的規定。熱軋鋼板和鋼帶的尺寸，形狀及其允許偏差應符合JISG3193的規定。厚度允許偏差適用于厚度小于160mm，厚度不小于160mm,由供需雙方協議。熱軋鋼板的不平度：厚度小于160mm的鋼板應符合表6-3-2的規定；厚度不小于160mm的鋼板由供需雙方快議。表6-3-2mm/、平度厚度寬度V12501250-V16001600-<20002000-<25002500-V3000>3000<1.602730-1.60-<4.00242730-4.00-<6.302124273338426.30-<10.01

3、8212430363910.0-<25.015182124273025.0-<63.012151821242763.0-<160121215182124注：表中的值不適用于經矯直機矯直的鋼板。表中的值適用于任意4000mm長度，長度小于4000mm時，適用于總長度不平度是用變形的最大值減去鋼板厚度，用于鋼板的上表面。表的值不適用于軋制狀態（軋制邊）的鋼板。測量不平度通常在平板上進行。3）除1）和2）以外的鋼材，其尺寸、形狀及其允許偏差應由供需雙方協議。（2）交貨狀態鋼材通常以退火狀態交貨，鋼板和鋼帶也可以軋制狀態交貨。（3）牌號和化學成分鋼的牌號化學成分（熔煉分析）應符合表6

4、-3-3的規定。表6-3-3牌號化學成分（質量分數）/%CSiMnP取大SCSK140(SK1)1.30-1.500.10-0.350.10-0.500.0300.030SK120(SK2)(C120U)1.15-1.250.10-0.350.10-0.500.0300.030SK105(SK3)(C105U)1.00-1.100.10-0.350.10-0.500.10-0.500.0300.030SK95(SK4)0.90-1.000.10-0.350.0300.030SK90(C90U)0.85-0.950.10-0.350.10-0.500.0300.030SK850.80-0.900

5、.10-0.350.10-0.500.0300.030(SK5)SK80(C80U)0.75-0.850.10-0.350.10-0.500.0300.030SK75(SK6)0.70-0.800.10-0.350.10-0.500.0300.030SK70(C70U)0.64-0.750.10-0.350.10-0.500.0300.030SK65(SK7)0.60-0.700.10-0.350.10-0.500.0300.030SK600.56-0.650.10-0.350.10-0.500.0300.030注：殘余元素（質量分數）銅下大于0.25%、銘不大于0.30%、鍥不大于0.25%

6、SK75和SK65預定5年后取消牌號欄中（SK*）為原標準牌號，（C*U）為對應的ISO4975工具鋼的牌號（4）退火硬度鋼材的退火硬度應符合表6-3-4的規定。如果采用布氏硬度測定有困難，可采用洛氏硬度（B標尺）或維氏硬度測定，其硬度值應由供需雙方協方。表6-3-4牌號退火溫度/C退火硬度HBS最大SK140750-780慢冷217SK120750-780慢冷217SK105750-780慢冷212SK95740-760慢冷207SK90740-760慢冷207SK85730-760慢冷207SK80730-760慢冷192SK75730-760慢冷192SK70730-760慢冷183SK

7、65730-760慢冷183SK60730-760慢冷183注：熱軋鋼板和鋼帶的軋制狀態和退火狀態硬度由供需雙方協議。(5)淬火和回火硬度鋼材試樣應按表6-3-5進行熱處理，其淬火和回火硬度應符合表6-3-5的規定。表6-3-5牌號熱處理溫度/C(土10)淬火和回火硬度HRC最小淬火回火SK140780水冷180空冷63SK120780水冷180空冷62SK105780水冷180空冷61SK95780水冷180空冷61SK90780水冷180空冷60SK85780水冷180空冷59SK80790水冷180空冷58SK75790水冷180空冷57SK70800水冷180空冷57SK65800水冷

8、180空冷56SK60810水冷180空冷55注：沒有經退火處理的鋼材，應先按照表6-3-4進行退火處理后再進行淬火和回火處理。(6)脫碳層熱軋圓鋼的脫碳層允許深度應符合表6-3-6的規定。表6-3-6mm公稱直徑允許深度<1515-<250.300.5025-<500.8050-<751.1075-<1001.40100-<1301.80130-<1352.00注：鋼板和鋼帶的脫碳層允許深度應按供需雙方協議。(7)表面質量JISG3193的規定熱軋圓鋼表面應具有良好的加工，不應有對使用有害的缺陷。熱軋鋼板和鋼帶的表面質量，應符合第二節JISG4404

9、-2000合金工具鋼鋼材熱軋和鍛制合金工具鋼的生產品種有圓鋼、鋼板和鋼帶，以及其他鋼材。通常鋼材的鍛壓比應不小于4S.鋼的牌號和種類如表6-3-7所示：表6-3-7牌號種類SKS11SKS2SKS21SKS5主要用于切削工具SKS51SKS7SKS81SKS8主要用于耐沖擊工具主要用于冷作模具SKS4SKS41SKS43(105V)SKS44SKS3SKS31SKS93SKS94SKS95SKD1(X210Cr12)SKD2(X210CrW12)SKD10(X153CrMoV12)SKD11SKD12(100CrMoV5)SKD4SKD5(X30WCrV9-3)SKD6SKD61(X40CrW

10、MoV5-1)SKD62(X35CrWMoV5)主要用于熱作模具SKD7(32CrMoV3-3)SKD8(X38CrCoWV4-4-4)SKT3SKT4(55NiCrMoV7)SKT6(45NiCrMo16)注：牌號欄中括號內的牌號為對應的ISO4957工具鋼的牌號，具化學成分相同。(1)尺寸、形狀及其允許偏差1)熱軋圓鋼的直徑為10mm-15mm,圓鋼直徑允許偏差和不圓度應符合表6-3-8的規定:表6-3-8mm公稱直徑直徑允許偏差/、圓度+0.6-0.310-<16+0.7不大于直徑16-<30-0.3公差的70%30-150+2.5%-1.0%注：圓鋼直徑小于10mm和大于1

11、50mm的直徑允許偏差由供需雙方協議。2)熱軋圓鋼以外的鋼材，其尺寸、允許偏差由供需雙方協議。(2)交貨狀態鋼材通常以退火狀態交貨。(3)牌號和化學成分鋼的牌號和化學成分(熔煉分析)，切削工具用鋼應符合表6-3-9、耐沖擊工具鋼用鋼應符合表6-3-10冷作模具用鋼應符合表6-3-11熱作模具用鋼應符合表6-3-12的規定表6-3-9牌號化學成分（質量分數）/%CSiMnP取大SNiCrWVSKS111.201.300.350.500.0300.030-0.200.503.004.000.100.30SKS21.001.100.350.800.0300.030-0.501.001.001.50S

12、KK211.001.100.350.500.0300.030-0.200.500.501.000.100.25SKS50.750.850.350.500.0300.0300.701.300.200.50-SKS510.750.850.350.500.0300.0301.302.000.200.50-SKS71.10-0.350.500.0300.030-0.20-2.00-1.200.502.50SKK811.101.300.350.500.0300.030-0.200.50-SKS81.301.500.350.500.0300.030-0.200.50-注：殘余元素（質量分數）鍥不大于0.2

13、5%（SKS5和SKS51除外）、銅不大于0.25%SKS2和SKS7可加入不大于0.20%（質量分數）的鈾。表6-3-10牌號化學成分（質量分數）/%CSiMnP取大SCrWVSKS40.45-0.55工0.35工0.500.0300.0300.50-1.000.50-1.00-SKS410.35-0.45工0.35工0.500.0300.0301.00-1.501.00-1.50-SKS431.00-1.100.10-0.300.10-0.400.0300.030-0.10-0.20SKS440.80-0.90<0.25<0.300.0300.030-0.10-0.25注：殘余

14、元素（質量分數）鍥不大于0.25%、銅不大于0.25%SKS43和SKS44殘余元素（質量分數）銘不大于0.20%.表6-3-11牌號化學成分（質量分數）/%CSiMnPSCrMoWVSKS30.901.00<0.350.901.200.0300.0300.501.00-0.501.00-SKS310.951.05<0.350.901.200.0300.0300.801.20-1.001.50-SKS931.001.10<0.500.801.100.0300.0300.200.60-SKS940.901.00<0.500.800.100.0300.0300.200.60

15、-SKS950.800.90<0.500.800.100.0300.0300.200.60-SKD11.90-0.10-0.20-0.0300.03011.00-2.200.600.6013.002.00-0.10-0.30-11.00-0.60-SKD22.300.400.600.0300.03013.00-0.80-1.45-0.10-0.20-11.00-0.70-0.70-SKD101.600.600.600.0300.03013.001.00-1.001.40-11.00-0.80-0.20-SKD111.60<0.40<0.600.0300.03013.001.2

16、0-0.500.95-0.10-0.40-4.80-0.90-0.15-SKD121.050.400.800.0300.0305.501.20-0.35SKD1可加入不大于0.30%（質量分數）的鈾表6-3-12牌號化學成分（質量分數）/%CSiMnP取大SNiCrMoWVCoSKD40.250.3500.40<0.600.0300.020-2.003.00-5.006.000.300.50-SKD50.250.350.100.400.150.450.0300.020-2.503.20-8.509.500.300.50-0.32-0.80-4.50-1.00-0.30-SKD60.421

17、.20工0.500.0300.020-5.501.50-0.50-0.35-0.80-0.25-4.80-1.00-0.80-SKD610.421.200.500.0300.020-5.501.50-1.15-0.32-0.80-0.20-4.75-1.00-1.00-0.20-SKD620.401.200.500.0300.020-5.501.601.600.50-0.28-0.10-0.15-2.70-2.50-0.40-SKD70.350.400.150.0300.020-3.203.00-0.70-0.35-0.15-0.20-4.00-0.30-3.80-1.70-4.00-SKD8

18、0.450.500.500.0300.020-4.700.504.502.104.500.50-0.25-0.90-0.30-SKT30.60工0.35<0.600.0300.0200.601.200.50-SKT40.50-0.10-0.60-0.0300.0201.50-0.80-0.35-0.05-0.600.400.901.801.200.550.15SKT60.400.500.100.400.200.500.0300.0203.804.301.201.500.150.35-SKT3可加入不大于0.20%(質量分數)的鈾(4)退火硬度鋼材的退火硬度應符合表6-3-13的規定。如果

19、采用布氏硬度測定有困難，可采用洛氏硬度或維氏硬度測定,其硬度值應由供需雙方協議。種類牌號退火溫度/C退火硬度HBS最大SKS11780-850慢冷241SKS2750-800慢冷217SKS21750-800慢冷217切削工具用SKS5750-800慢冷207SKS51750-800慢冷207SKS7750-800慢冷217SKS81750-800慢冷212SKS8750-800慢冷217SKS4740-780慢冷201耐沖擊工具用SKS41SKS43(105V)760-820750-800慢冷慢冷217212SKS44730-780慢冷207SKS3750-800慢冷217SKS31750-

20、800慢冷217SKS93750-780慢冷217SKS94740-760慢冷212冷作模具用SKS95730-760慢冷212SKD1(X210Cr12)830-880慢冷248SKD2(X210CrW12)830-880慢冷255SKD10(X153CrMoV12)830-880慢冷255SKD11830-880慢冷255SKD12(100CrMoV5)830-880慢冷241SKD4800-850慢冷235SKD5(X30WCrV9-3)800-850慢冷241SKD6820-870慢冷229SKD61(X40CrWMoV5-1)820-870慢冷229SKD62(X35CrWMoV5)

21、820-870慢冷229熱作模具用SKD7(32CrMoV3-3)820-870慢冷229SKD8(X38CrCoWV4-4-4)820-870慢冷262SKT3760-810慢冷235SKT4(55NiCrMoV7)740-800慢冷248SKT6(45NiCrMo16)720-780慢冷285注：熱軋鋼板和鋼帶的退火硬度按供需雙方協議。(5)淬火和回火硬度鋼材試樣應按表6-3-14進行熱處理，其淬火和回火硬度應符合表6-3-14的規定表6-3-14種類牌號熱處理溫度/C(±10)淬火和回火硬度HRC最小淬火回火SKS11790水冷180空冷62SKS2860油冷180空冷61SK

22、S21800水冷180空冷61SKS5830油冷420空冷45切削工具用SKS51830油冷420空冷45SKS7860油冷180空冷62SKS81790水冷180空冷63SKS8810水冷180空冷63SKS4800水冷180空冷56耐沖擊工具用SKS41880油冷180空冷53SKS43(105V)SKS44790水冷790水冷180空冷180空冷6360SKS3830油冷180空冷60SKS31830油冷180空冷61SKS93820油冷180空冷63SKS94820油冷180空冷61冷作模具用SKS95820油冷180空冷59SKD1970水冷180空冷62SKD2970水冷180空冷

23、62SKD10)1020水冷180空冷61SKD111030水冷180空冷58SKD12970水冷180空冷60熱作模具用SKD41080油冷600空冷42SKD51150油冷600空冷48SKD61050空冷550空冷48SKD611020空冷550空冷50SKD621020空冷550空冷48SKD71040空冷550空冷46SKD81120油冷600空冷48SKT3850油冷500空冷42SKT4850油冷500空冷42SKT6850油冷180空冷52注：沒有經退火處理的鋼材。應先按照表6-3-13進行退火處理后再進行淬火和回火處理(6)脫碳層熱軋圓鋼的脫碳層允許深度應符合表6-3-15的

24、規定。表6-3-15公稱直徑允許深度公稱直徑允許深度<150.3075-<1001.4015-<250.50100-<1301.8025-<500.80130-<1352.0050-<751.10注：鋼板和鋼帶的脫碳層允許深度應由供需雙方協議。(7)表面質量鋼材表面應具有良好的加工，不應有對使用有害的缺陷。第三節JISG4403-2000高速工具鋼鋼材熱軋和鍛制高速工具鋼的生產品種有圓鋼及其他鋼材。通常鋼材的鍛壓比應不小于6S鋼的牌號和種類如表6-3-16所示。表6-3-16牌號種類SKH2(HS18-0-1)鴇系高速工具鋼SKH3SKH4SKH10S

25、KH40(HS6-5-3-8)鋁系粉末高速工具鋼SKH50(HS1-8-1)SKH51(HS6-5-2)SKH52(HS6-6-2)SKH53(HS6-5-3)SKH54(HS6-5-4)鋁系高速工具鋼SKH55(HS6-5-2-5)SKH56SKH57(HS10-4-3-10)SKKH58(HS2-9-2)SKH59(HS2-9-1-8)注:牌號欄中括號內的牌號為對應的ISO4957工具鋼的牌號。(1)尺寸、形狀及其允許偏差熱軋圓鋼的直徑為10mm-70mm,圓鋼直徑允許偏差和不圓度應符合表6-3-17的規定表6-3-17公稱直徑直徑允許偏差小圓度10-<16+0.6-0.316-&l

26、t;30+0.7-0.3大于直徑公差的70%30-150+2.5%-1.0%注：圓鋼直徑小于10mm和大于150mm的直徑允許偏差按供需雙方協議。2)熱軋圓鋼以外的鋼材，其尺寸、允許偏差按供需雙方協議。(2)交貨狀態鋼材通常以退火狀態交貨。（3）牌號和化學成分鋼的牌號和化學成分（熔煉分析）應符合表6-3-18的規定表6-3-18牌號化學成分（質量分數）/%CSiMnPSCrMoWVCoSKH20.730.830.73-0.450.400.0300.0303.804.503.80-17.2018.7017.0-1.001.200.80-4.50-SKH30.830.450.400.0300.03

27、04.50-19.01.205.50SKH40.73-0.450.400.0300.0303.80-17.0-1.00-9.00-SKH100.830.450.400.0300.0304.50-19.01.5011.001.451.603.804.5011.5013.504.205.204.205.20SKH401.231.330.450.400.0300.0303.804.504.705.305.706.702.703.208.008.800.77-3.50-8.0-1.40-1.00-SKH500.870.700.400.0300.0304.509.002.001.40-SKH510.80

28、-0.450.400.0300.0303.80-4.70-5.90-1.70-SKH520.880.450.400.0300.0304.505.206.702.10-SKH531.00-0.450.400.0300.0303.80-5.50-5.90-2.30-SKH541.100.450.400.0300.0304.506.506.702.604.50-SKH551.15-0.450.400.0300.0303.80-4.70-5.90-2.70-5.00SKH561.250.450.400.0300.0304.505.206.703.207.00-SKH571.25-0.450.400.0

29、300.0303.80-4.20-5.20-3.70-9.00SKKH581.400.700.400.0300.0304.505.006.004.209.50-SKH590.87-0.700.400.0300.0303.80-4.70-5.90-1.70-10.500.950.85-4.503.80-5.204.70-6.705.90-2.101.70-7.50-0.954.505.206.702.108.501.20-3.80-3.20-9.00-3.00-1.354.503.9010.003.500.95-3.80-8.20-1.50-1.70-1.054.509.202.102.201.

30、05-3.80-9.00-1.20-0.90-1.154.5010.001.901.30注：殘余元素(質量分數)銅不大于0.25%(4)退火硬度鋼材的退火硬度應符合表6-3-19的規定。如果采用布氏硬度測定有困難，可采用洛氏硬度或維氏硬度測定,其硬度值應由供需雙方協議。表6-3-19牌號退火溫度/C退火硬度HBS最大SKH2820-880慢冷269SKH3840-900慢冷269SKH4850-910慢冷285SKH10820-900慢冷285SKH40800-880慢冷302SKH50800-880慢冷262SKH51800-880慢冷262SKH52800-880慢冷262SKH53800

31、-880慢冷269SKH54800-880慢冷269SKH55800-880慢冷269SKH56800-880慢冷285SKH57800-880慢冷293SKKH58800-880慢冷269SKH59800-880慢冷277(5)淬火和回火硬度鋼材試樣應按表6-3-20進行熱處理，其淬火和回火硬度應符合表6-3-20的規定。表6-3-20牌號熱處理溫度/C(土10C)淬火和回火硬度HRC最小淬火回火SKH21260油冷560空冷63SKH31270油冷560空冷64SKH41270油冷560空冷64SKH101230油冷560空冷64SKH401180油冷560空冷65SKH501190油冷560空冷63SKH511220油冷560空冷64SKH521200油冷560