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
关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf
。基本尺寸公差值IT4IT5IT6IT7IT8IT9IT10IT11IT12IT13IT14IT15IT16IT17IT18大于到µmmm-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HYPERLINK"http://e-cuttech.com/Rm2HRC-2.html"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HYPERLINK"http://e-cuttech.com/Rm2HRC.html"第一页抗拉强度RmN/mm2维氏硬度HV布氏硬度HB洛氏硬度HRC103032030432.2106033031433.3109534032334.4112535033335.5111536034236.6119037035237.7122038036138.8125539037139.8129040038040.8132041039041.8135042039942.7138543040943.6142044041844.5145545042845.3148546043746.1152047044746.91555480(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)57.8 660 58.3 670 58.8 680 59.2 690 59.7 700 60.1 720 61.0 740 61.8 760 62.5 780 63.3 800 64.0 820 64.7 840 65.3 860 65.9 880 66.4 900 67.0 920 67.5 940 68.0模具钢、工具钢规格特性对照钢种韩国HJ美国AISI德国DIN瑞典ASSAB日本JIS出厂硬度(交货基准)化学成分(%)特性淬火温度℃回火后硬度HRC用途CSiMnNiCrMo塑料模具钢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HP-4A4140优化2311HOLDEXSCM440优化预硬化表面HS38-440.36-0.440.15-0.350.85-0.95≤0.50.90-1.10.25-0.35良好的加工性和抗磨损性,加工变形微小830-860 大型模具的型板汽车保险杠,电视机后盖HP-4MAP20优化2738718SNCM优化预硬化表面HS41-470.33-0.370.15-0.350.80-10.40-0.51.65-1.750.40-0.5良好的加工性和抗磨损性,硬度分布均一840-870 大型模具的型板高表面要求家用电器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1000-1050200-500℃HRC50-55彩色显像管玻壳模具CD、透镜、PVC底盘热作工具钢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550-680℃HRC≤53压铸模具,热压模挤压模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550-680℃HRC≤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,高强度1000-1050空冷,油冷550-680℃HRC≥58修边模,成型模冲模,热压模锻造用工具钢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 锻模热压模火焰硬化钢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150-200℃HRC≥61冲压模,修边模