机械五金行业常用尺寸公差表.docx

1、机械五金行业常用尺寸公差表塑料件尺寸公差表（摘自 GB/T14486-93）公差 等 级公差 种 类基 本 尺 寸03366101014141818242430304040505065658080100100120120140MT1A0.070.080.090.100.110.120.140.160.180.200.230.260.290.32B0.140.160.180.200.210.220.240.260.280.300.330.360.390.42MT2A0.100.120.140.160.180.200.220.240.260.300.340.380.420.46B0.200.220

2、.240.260.280.300.320.340.360.400.440.480.520.56MT3A0.120.140.160.180.200.240.280.320.360.400.460.520.580.64B0.320.340.360.380.400.440.480.520.560.600.660.720.780.84MT4A0.160.180.200.240.280.320.360.420.480.560.640.720.820.92B0.360.380.400.440.480.520.560.620.680.760.840.921.021.12MT5A0.200.240.280.3

3、20.380.440.500.560.640.740.861.001.141.28B0.400.440.480.520.580.640.700.760.840.941.061.201.341.48MT6A0.260.320.380.460.540.620.700.800.941.101.281.481.722.00B0.460.520.580.680.740.820.901.001.141.301.481.681.922.20MT7A0.380.480.580.680.780.881.001.141.321.541.802.102.402.70B0.580.680.780.880.981.08

4、1.201.341.521.742.002.302.603.10（续 上表） 塑料件尺寸公差表（摘自 GB/T14486-93）公差_公基本尺寸等级差种140160180200225250280315355400450类160180200225250280315355400450500MT1A0.360.400.440.480.520.560.600.640.700.780.86B0.460.500.540.580.620.660.700.740.800.880.96MT2A0.500.540.600.660.720.760.840.921.001.101.20B0.600.640.700.7

5、60.820.860.941.021.101.201.30MT3A0.700.780.860.921.001.101.201.301.401.601.74B0.900.981.061.121.201.301.401.501.641.801.94MT4A1.021.121.241.361.481.621.802.002.202.402.60B1.221.321.441.561.681.822.002.202.402.602.80MT5A1.441.601.761.922.102.302.502.803.103.503.90B1.641.801.962.122.302.502.703.003.30

6、3.704.10MT6A2.202.402.602.903.203.503.804.304.705.306.00B2.402.602.803.103.403.704.004.504.905.506.20MT7A3.003.303.704.104.504.905.406.006.707.408.20B3.203.503.904.304.705.105.606.206.907.608.40注：1 ）、A为不受模具活动部分影响的尺寸公差值； B为受模具活动部分影响的尺寸公差值;2 ）、公差等级按下页常用材料模塑件公差等级选用表确定。常用材料模塑件公差等级选用表（摘自 GB/T14486-93）塑料代

7、号模 塑 材 料公差等级备注未注公差尺寸未注公差尺寸高精度一般精度ABS丙烯晴丁一烯本乙烯共聚物MT2MT3MT5AS丙烯晴苯乙烯共聚物MT2MT3MT5制透明罩、外壳CA醋酸纤维素塑料MT3MT4MT6EP环氧树脂MT2MT3MT5PAPA6 PA66（尼龙类塑料）PA46聚酰氨均聚物无填料填充MT3MT4MT6玻璃纤维填充MT2MT3MT5PC聚碳酸脂（PC5509透明、耐电弧）MT2MT3MT5（耐连续高温120 C）PDAP聚邻苯二甲酸二烯脂MT2MT3MT5PE聚乙烯MT5MT6MT7PESL聚醚砜MT2MT3MT5PBTPET聚对苯二甲酸丁二醇脂 （PET为影视胶片、带材料）无填料

8、填充MT3MT4MT6作绝缘件、外壳玻璃纤维填充MT2MT3MT5PF酚醛塑料无机填料填充MT2MT3MT5有机填料填充MT3MT4MT4PMMA聚甲基丙烯酸甲脂MT2MT3MT5POM聚甲醛模塑料（自润滑性好） （耐连续高温85 C） 150mmMT4MT5MT7PP聚丙烯无填料填充MT3MT4MT6无机填料填充MT2MT3MT5PPO聚苯醚（耐连续高温 110 C）MT2MT3MT5PPS聚苯硫醚（耐连续高温 250 C）（作牵引杆）MT2MT3MT5制件需高温处理PS聚苯乙烯（透明）MT2MT3MT5制透明罩、外壳PSF聚砜（耐热、高强度、低翘曲）MT2MT3MT5（耐连续高温120 C

9、）RPVC硬质聚氯乙烯（无强塑料）MT2MT3MT5SPVC软质聚氯乙烯MT5MT6MT7VF/MF氨基酸料和氨基酚醛塑料（热固性模塑料）无机填料填充MT2MT3MT5脲甲醛（VF）,三聚氰胺脲甲醛（MF有机填料填充MT3MT4MT6DMC-3不饱和聚脂玻璃纤维模塑料玻璃纤维填充MT2MT3MT5耐电弧DF553热固性模塑料MT2MT3MT5耐电弧SMC-1热固性模塑料MT2MT3MT5耐电弧DF551热固性模塑料MT2MT3MT5耐电弧平冲压件尺寸公差表（摘自 GB/T13914-1992） 冲裁基本尺寸材料厚度公差 等 级（注：公差等级按平冲压件尺寸公差等级选用表 确定。）大于至大于至ST

10、1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11-1-0.50.0080.0100.0150.0200.0300.0400.0600.0800.120.16-0.510.010.0150.020.030.040.060.080.120.160.24-11.50.0150.020.030.040.060.080.120.160.240.34-13-0.50.0120.0180.0260.0360.050.070.100.140.200.280.400.510.0180.0260.0360.050.070.100.140.200.280.400.56130.0260.0360.0

11、50.070.100.140.200.280.400.560.78340.0340.050.070.090.130.180.260.360.500.700.98310-0.50.0180.0260.0360.050.0700.100.140.200.280.400.560.510.0260.0360.050.070.100.10.0.200.280.400.560.78130.0360.050.070.100.140.200.280.400.560.781.10360.0460.060.090.130.180.260.360.480.680.981.4060.060.080.110.160.2

12、20.300.420.600.841.201.601025-0.50.0260.0360.050.070.100.140.200.280.400.560.780.510.0360.050.070.100.140.200.280.400.560.781.10130.050.070.100.140.200.280.400.560.781.101.50360.060.090.130.180.260.360.500.701.001.402.0060.080.120.160.220.320.440.600.881.201.602.402563-0.50.0360.050.070.100.140.200.

13、280.400.560.781.100.510.050.070.100.140.200.280.400.560.781.101.50130.070.100.140.200.280.400.560.781.101.502.10360.090.120.180.260.360.500.700.981.402.002.8060.110.160.220.300.440.600.861.201.602.203.0063160-0.50.040.060.090.120.180.260.360.500.700.981.400.510.060.090.120.180.260.360.500.700.981.40

14、2.00130.090.120.180.260.360.500.700.981.402.002.80360.120.160.240.320.460.640.901.301.802.503.6060.140.200.280.400.560.781.101.502.102.904.20160400-0.50.060.090.120.180.260.360.500.700.981.402.000.510.090.120.180.260.360.500.700.981.402.002.80130.120.180.260.360.500.701.001.402.002.804.00360.160.240

15、.320.460.640.901.301.802.603.604.8060.200.280.400.560.781.101.502.102.904.205.604001000-0.50.090.120.180.240.340.480.660.941.301.802.600.510.180.240.340.480.660.941.301.802.603.60130.240.340.480.660.941.301.802.603.605.00360.320.450.620.881.201.602.403.404.606.6060.340.480.701.001.402.002.804.005.60

16、7.80成形冲压件尺寸公差表（摘自 GB/T13914-1992） 弯形基本尺寸板材厚度公 差 等 级大于至大于至FT1FT2FT3FT4FT5FT6FT7FT8FT9FT10一1一0.50.010.0160.0260.040.060.100.160.260.400.600.510.0140.0220.0340.050.090.140.220.340.500.9011.50.020.030.050.080.120.200.320.500.901.4013一0.50.0160.0260.040.070.110.180.280.440.701.000.510.0220.0360.060.090.1

17、40.240.380.600.901.40130.0320.050.080.120.200.340.540.861.202.00340.040.070.110.180.280.440.701.101.802.80310一0.50.0220.0360.060.090.140.240.380.600.961.400.510.0320.050.080.120.200.340.540.861.402.20130.050.070.110.180.300.480.761.202.003.20360.060.090.140.240.380.601.001.602.604.0060.070.110.180.2

18、80.440.701.101.802.804.401025一0.50.030.050.080.120.200.320.500.801.202.000.510.040.070.110.180.280.460.721.101.802.80130.060.100.160.260.400.641.001.602.604.00360.080.120.200.320.500.801.202.003.205.0060.100.140.240.400.621.001.602.604.006.402563一0.50.040.060.100.160.260.400.641.001.602.600.510.060.

19、090.140.220.360.580.901.402.203.60130.080.120.200.320.500.801.202.003.205.00360.100.160.260.400.661.001.602.604.006.4060.110.180.280.460.761.202.003.205.008.0063160一0.50.050.080.140.220.360.560.901.402.203.600.510.070.120.190.300.480.781.202.003.205.00130.100.160.260.420.681.101.3020804.407.00360.14

20、0.220.340.540.881.402.203.405.609.0060.150.240.380.621.001.602.604.006.6010.00160400一0.5一0.0100.160.260.420.701.101.802.804.400.51一0.140.240.380.621.001.602.604.006.4013一0.220.340.540.881.402.203.405.609.0036一0.280.440.701.101.802.804.407.0011.006一0.340.540.881.402.203.405.609.0014.004001000一0.5一一0.240.380.621.001.602.604.006.600.510.340.540.881.402.203.405.609.0013一一0.440.701.101.802.804.407.0011.00360.560.901.402.203.405.609.0014.0060.621.001.602.604.006.4010.0016.00注：公差等级按成形冲压件公差等级选用表确定平冲压件尺寸公差等级选用表（摘自 GB/T13914-1992） 冲裁加工方法