公差对照表

根据国际标准，以下为基本尺寸0-500mm,4-18级精度标准公差表基本尺寸公差值IT4IT5IT6IT7IT8IT9IT10IT11IT12IT13IT14IT15IT16IT17IT18大于到mmm-334610142540600.100.140.250.400.601.01.43645812183048750.120.180.300.480.751.21.861046915223658900.150.220.360.580.901.52.210185811182743701100.180.270.430.701.101.82.718306913213352841300.210.330.520.841.302.13.33050711162539621001600.250.390.621.001.602.53.95080813193046741201900.300.460.741.201.903.04.6801201015223554871402200.350.540.871.402.203.55.412018012182540631001602500.400.631.001.602.504.06.318025014202946721151852900.460.721.151.852.904.67.225031516233252811302103200.520.811.302.103.205.28.131540018253657891402303600.570.891.402.303.605.78.940050020274063971552504000.630.971.552.504.006.39.7注：基本尺寸小于1mm时，无IT14至IT18。根据国际标准，以下线性尺寸未注公差的公差表。这个线性尺寸未注公差适用于金属切削加工的尺寸，也适用于一般的冲压加工尺寸。这些极限偏差适用于非配合尺寸表1线性尺寸的极限偏差数值公差等级尺寸分段0.5~3>3~6>6~30>30~120>120~400>400~1000>1000~2000>2000~4000f（精密级）+0.05+0.05+0.1+0.15+0.2+0.3+0.5-m（中等级）+0.1+0.1+0.2+0.3+0.5+0.8+1.2+2c（粗糙级）+0.2+0.3+0.5+0.8+1.2+2+3+4v（最粗级）-+0.5+1+1.5+2.5+4+6+8表2倒圆半径与倒角高度尺寸的极限偏差数值公差等级尺寸分段0.5~3>3~6>6~30>30f（精密级）+0.2+0.5+1+2m（中等级）c（粗糙级）±0.4+1+2+4v（最粗级）根据德国标准DIN50150,以下是常用范围的钢材抗拉强度与维氏硬度、布氏硬度、洛氏硬度的对照表。如果您要查的抗拉强度＞1000N/mm2,或者维氏硬度＞310HV,或者布氏硬度＞300HB,或者洛氏硬度＞32HRC,请查本表第二页抗拉强度RmN/mm2维氏硬度HV布氏硬度HB洛氏硬度HRC2508076.0-2708580.7-2859085.2-3059590.2-32010095.0-33510599.8-350110105-370115109-380120114-400125119-415130124-430135128-450140133-465145138-480150143-490155147-510160152-530165156-545170162-560175166-575180171-595185176-610190181-625195185-640200190-660205195-675210199-690215204-705220209-720225214-740230219-755235223-77024022820.378524523321.380025023822.282025524223.183526024724.085026525224.886527025725.688027526126.490028026627.191528527127.893029027628.595029528029.296530028529.899531029531.0如果您要查的抗拉强度＜1000N/mm2,或者维氏硬度＜310HV,或者布氏硬度＜300HB,或者洛氏硬度＜32HRC,请查本表第一页抗拉强度维氏硬度布氏硬度洛氏硬度RmN/mm2HVHBHRC103032030432.2106033031433.3109534032334.4112535033335.5111536034236.6119037035237.7122038036138.8125539037139.8129040038040.8132041039041.8135042039942.7138543040943.6142044041844.5145545042845.3148546043746.1152047044746.91555480(456)47.71595490(466)48.41630500(475)49.11665510(485)49.81700520(494)50.51740530(504)51.11775540(513)51.71810550(523)52.31845560(532)53.01880570(542)53.61920580(551)54.11955590(561)54.71995600(570)55.22030610(580)55.72070620(589)56.32105630(599)56.82145640(608)57.32180650(618)57.866058.367058.868059.269059.770060.172061.074061.876062.578063.380064.082064.784065.386065.988066.490067.092067.594068.0模具钢、工具钢规格特性对照钢韩国美国德国瑞典日本出厂硬度化学成分(%)淬火温回火后硬种HJAISIDINASSABJIS（交货基准）CSiMnNiCrMo特性度C度HRC用途HP-1A1050优化-760S55C优化预硬化表面HS28-330.50-0.550.15-0.350.70-0.9<0.5--良好的加工性和大为减少的加工时间一般杂货的型板玩具，精密部件的基材空料度HP-4A4140优化2311HOLDEXSCM440优化预硬化表面0.36-0.440.15-0.350.85-0.95<0.50.90-1.10.25-0.35良好的加工性和抗磨损830-860大型模具的型板汽车保险具钢HS38-44性，加工变形微小杠，电视机后盖HP-4MAP20优化2738718SNCM优化预硬化表面0.33-0.370.15-0.350.80-10.40-0.51.65-1.750.40-0.5良好的加工性和抗磨损840-870大型模具的型板高表面HS41-47性，硬度分布均一要求家用电器HAM-70P21优化--DAIDONAK80预硬化表面HSC37-410.05-0.250.10-0.71.00-22.00-4-0.20-0.5良好的加工性和表面光洁度，硬度分布均一840-870汽车顶灯，冰箱蔬菜盒照明灯等透明件HEMS-1A420优化2083ESRS-136-S-136HSUS420J2优化退火HRC23-550.25-0.30.50-0.550.70-0.8<0.312.0-12.5<0.5良好的抗腐蚀性和精加工，高精度1000-1050200-500CHRC50-55彩色显像管玻壳模具CD、透镜、PVC底盘热作工STD-61H1323448407SKD61退火HB<2290.36-0.40.80-1.20.30-0.5<0.254.50-5.51.00-1.5高清净度，结构均匀，良好高温强度和韧性1000-1050空冷，油冷550-680CHRC<53压铸模具，热压模挤压模具钢HDS-1H13优化2344优化-SKD61优化退火HB<229专利进行中良好的韧性，热均裂性和软化抵抗性及硬化性1000-1050真空，煤气550-680CHRC<53压铸模具，热压模冷作工具钢STD-11D2优化2379XW42SKD11优化退火HB<2251.40-1.60.15-0.350.25-0.5-11.0-130.80-1.2高清净度，结构硬度均匀抗磨损，1000-1050空冷，油冷550-680CHRC>58修边模，成型模冲模，热压模高强度毅避用工具钢STF-4M6F2优化--SKT4优化预硬化HRC42-480.49-0.540.20-0.30.95-1.051.95-2.10.95-1.10.45-0.55高清净度，良好的抗热冲击性和抗磨损性锻模热压模火焰更化钢HFH-1---HITACHIHMD5退火HB<2250.70-0.80.90-1.050.70-0.8<0.151.00-1.10.20-0.25火焰表面硬化处理，良好的抗磨损性和加工性875-950空冷，油冷150-200CHRC>61冲压模，修边模