|
Standard
Specifications for Metal Casting
Tolerances - ISO 8062, ISO 286, ANSI
B4.1, ISO 2768
These standards provide
guidance for
metal
casting linear dimension
tolerances where no other requirements
exist for form, fit or function (general
tolerances). We made a comparison table
for
ISO 8062, SFSA 2003, ISO
286-2,
ISO 2768 and ANSI B4.1.
Table 1. Comparison of
Metal Casting General Tolerance Systems
(mm)
Basic Dimension
mm |
ISO 8062:2007, ISO 8062:1994 and SFSA 2003,
mm |
ICI
mm |
ISO 286-2
Standard Tolerance, mm |
ISO 286-2 External
Dimension Tolerances, mm |
ANSI B4,1-1967(R1999)
Standard Tolerances, mm |
ISO 2768-1,mm |
Over |
Up to and
including |
DCTG-1
CT-1 |
DCTG-2
CT-2 |
DCTG-3
CT-3 |
DCTG-4
CT-4 |
DCTG-5
CT-5 |
DCTG-6
CT6 |
DCTG-7
CT7 |
- |
IT11 |
IT12 |
IT13 |
IT14 |
JS-13 |
JS-14 |
JS-15 |
Gr.8 |
Gr.9 |
Gr.10 |
Gr.11 |
Gr.12 |
Gr.13 |
f |
m |
c |
0 |
0.5 |
0.045 |
0.065 |
0.09 |
0.13 |
0.18 |
0.26 |
0.37 |
0.25 |
0.06 |
0.1 |
0.1 |
0.25 |
0.1 |
0.125 |
0.2 |
0.015 |
0.025 |
0.040 |
0.065 |
0.100 |
0.15 |
- |
- |
- |
0.5 |
3 |
0.045 |
0.065 |
0.09 |
0.13 |
0.18 |
0.26 |
0.37 |
0.25 |
0.06 |
0.1 |
0.1 |
0.25 |
0.1 |
0.125 |
0.2 |
0.015 |
0.025 |
0.040 |
0.065 |
0.100 |
0.15 |
0.05 |
0.1 |
0.2 |
3 |
6 |
0.045 |
0.065 |
0.09 |
0.13 |
0.18 |
0.26 |
0.37 |
0.25 |
0.075 |
0.12 |
0.18 |
0.3 |
0.1 |
0.15 |
0.24 |
0.020 |
0.030 |
0.045 |
0.075 |
0.125 |
0.18 |
0.05 |
0.1 |
0.3 |
6 |
10 |
0.045 |
0.065 |
0.09 |
0.13 |
0.18 |
0.26 |
0.37 |
0.25 |
0.09 |
0.15 |
0.22 |
0.36 |
0.11 |
0.18 |
0.29 |
0.025 |
0.035 |
0.055 |
0.09 |
0.15 |
0.23 |
0.1 |
0.2 |
0.5 |
10 |
16 |
0.05 |
0.07 |
0.1 |
0.14 |
0.19 |
0.27 |
0.39 |
0.25 |
0.11 |
0.18 |
0.27 |
0.43 |
0.135 |
0.215 |
0.35 |
0.03 |
0.04 |
0.07 |
0.10 |
0.18 |
0.26 |
0.1 |
0.2 |
0.5 |
16 |
18 |
0.055 |
0.075 |
0.11 |
0.15 |
0.21 |
0.29 |
0.41 |
0.25 |
0.11 |
0.18 |
0.27 |
0.43 |
0.135 |
0.215 |
0.35 |
0.03 |
0.04 |
0.07 |
0.10 |
0.18 |
0.26 |
0.1 |
0.2 |
0.5 |
18 |
25 |
0.055 |
0.075 |
0.11 |
0.15 |
0.21 |
0.29 |
0.41 |
0.25 |
0.13 |
0.21 |
0.33 |
0.52 |
0.165 |
0.26 |
0.37 |
0.03 |
0.05 |
0.09 |
0.13 |
0.21 |
0.31 |
0.1 |
0.2 |
0.5 |
25 |
30 |
0.06 |
0.085 |
0.12 |
0.16 |
0.23 |
0.32 |
0.45 |
0.33 |
0.13 |
0.21 |
0.33 |
0.52 |
0.165 |
0.26 |
0.37 |
0.03 |
0.05 |
0.09 |
0.13 |
0.21 |
0.31 |
0.1 |
0.2 |
0.5 |
30 |
40 |
0.06 |
0.085 |
0.12 |
0.16 |
0.23 |
0.32 |
0.45 |
0.33 |
0.16 |
0.25 |
0.39 |
0.62 |
0.195 |
0.31 |
0.5 |
0.04 |
0.07 |
0.10 |
0.15 |
0.26 |
0.41 |
0.15 |
0.3 |
0.8 |
40 |
50 |
0.065 |
0.09 |
0.13 |
0.18 |
0.25 |
0.35 |
0.5 |
0.33 |
0.16 |
0.25 |
0.39 |
0.62 |
0.195 |
0.31 |
0.5 |
0.04 |
0.07 |
0.10 |
0.15 |
0.26 |
0.41 |
0.15 |
0.3 |
0.8 |
50 |
63 |
0.065 |
0.09 |
0.13 |
0.18 |
0.25 |
0.35 |
0.5 |
0.41 |
0.19 |
0.3 |
0.46 |
0.74 |
0.23 |
0.37 |
0.6 |
0.05 |
0.08 |
0.12 |
0.18 |
0.31 |
0.46 |
0.15 |
0.3 |
0.8 |
63 |
80 |
0.07 |
0.1 |
0.14 |
0.2 |
0.28 |
0.39 |
0.55 |
0.41 |
0.19 |
0.3 |
0.46 |
0.74 |
0.23 |
0.37 |
0.6 |
0.05 |
0.08 |
0.12 |
0.18 |
0.31 |
0.46 |
0.15 |
0.3 |
0.8 |
80 |
100 |
0.07 |
0.1 |
0.14 |
0.2 |
0.28 |
0.39 |
0.55 |
0.48 |
0.22 |
0.35 |
0.54 |
0.87 |
0.27 |
0.435 |
0.7 |
0.06 |
0.09 |
0.13 |
0.23 |
0.36 |
0.56 |
0.15 |
0.3 |
0.8 |
100 |
120 |
0.075 |
0.11 |
0.15 |
0.22 |
0.31 |
0.44 |
0.6 |
0.56 |
0.22 |
0.35 |
0.54 |
0.87 |
0.27 |
0.435 |
0.7 |
0.06 |
0.09 |
0.13 |
0.23 |
0.36 |
0.56 |
0.15 |
0.3 |
0.8 |
120 |
160 |
0.075 |
0.11 |
0.15 |
0.22 |
0.31 |
0.44 |
0.6 |
0.64 |
0.25 |
0.4 |
0.63 |
1 |
0.315 |
0.5 |
0.8 |
0.07 |
0.10 |
0.15 |
0.26 |
0.41 |
0.64 |
0.2 |
0.5 |
1.2 |
160 |
180 |
- |
0.12 |
0.17 |
0.25 |
0.35 |
0.5 |
0.7 |
0.79 |
0.25 |
0.4 |
0.63 |
1 |
0.315 |
0.5 |
0.8 |
0.07 |
0.10 |
0.15 |
0.26 |
0.41 |
0.64 |
0.2 |
0.5 |
1.2 |
180 |
250 |
- |
0.12 |
0.17 |
0.25 |
0.35 |
0.5 |
0.7 |
0.94 |
0.29 |
0.46 |
0.72 |
1.15 |
0.36 |
0.575 |
0.925 |
0.07 |
0.12 |
0.18 |
0.31 |
0.46 |
0.71 |
0.2 |
0.5 |
1.2 |
Table 2. Comparison of Metal
Casting General Tolerance Systems (inch)
Basic Dimension,
inch |
ISO 8062-1994 and SFSA 2003, inch |
ICI, inch |
ISO 286-2
Standard Tolerance, inch |
ISO 286-2 External
Dimension Tolerances, inch |
ANSI B4.1-1967(R1999)
Standard Tolerances, inch |
ISO 2768-1, inch |
- |
Up to and
including |
DCTG-1
CT-1 |
DCTG-2
CT-2 |
DCTG-3
CT-3 |
DCTG-4
CT-4 |
DCTG-5
CT-5 |
DCTG-6
CT6 |
DCTG-7
CT7 |
- |
IT11 |
IT12 |
IT13 |
IT14 |
JS-13 |
JS-14 |
JS-15 |
Gr.8 |
Gr.9 |
Gr.10 |
Gr.11 |
Gr.12 |
Gr.13 |
f |
m |
c |
0.00 |
0.02 |
0.002 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.015 |
0.010 |
0.002 |
0.004 |
0.004 |
0.01 |
0.004 |
0.005 |
0.008 |
0.0006 |
0.0010 |
0.0016 |
0.0025 |
0.0040 |
0.0060 |
- |
- |
- |
0.02 |
0.12 |
0.002 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.015 |
0.010 |
0.002 |
0.004 |
0.004 |
0.01 |
0.004 |
0.005 |
0.008 |
0.0006 |
0.0010 |
0.0016 |
0.0025 |
0.0040 |
0.0060 |
0.002 |
0.004 |
0.008 |
0.12 |
0.24 |
0.002 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.015 |
0.010 |
0.003 |
0.005 |
0.007 |
0.012 |
0.004 |
0.006 |
0.009 |
0.0007 |
0.0012 |
0.0018 |
0.0030 |
0.0050 |
0.0070 |
0.002 |
0.004 |
0.012 |
0.24 |
0.40 |
0.002 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.015 |
0.010 |
0.004 |
0.006 |
0.009 |
0.014 |
0.004 |
0.007 |
0.011 |
0.0009 |
0.0014 |
0.0022 |
0.0035 |
0.0060 |
0.0090 |
0.004 |
0.008 |
0.02 |
0.40 |
0.63 |
0.002 |
0.003 |
0.004 |
0.006 |
0.007 |
0.011 |
0.015 |
0.010 |
0.004 |
0.007 |
0.011 |
0.017 |
0.005 |
0.008 |
0.014 |
0.0010 |
0.0016 |
0.0028 |
0.0040 |
0.0070 |
0.0100 |
0.004 |
0.008 |
0.02 |
0.63 |
0.71 |
0.002 |
0.003 |
0.004 |
0.006 |
0.008 |
0.011 |
0.016 |
0.010 |
0.004 |
0.007 |
0.011 |
0.017 |
0.005 |
0.008 |
0.014 |
0.0010 |
0.0016 |
0.0028 |
0.0040 |
0.0070 |
0.0100 |
0.004 |
0.008 |
0.02 |
0.71 |
1.00 |
0.002 |
0.003 |
0.004 |
0.006 |
0.008 |
0.011 |
0.016 |
0.010 |
0.005 |
0.008 |
0.013 |
0.02 |
0.006 |
0.01 |
0.015 |
0.0012 |
0.0020 |
0.0035 |
0.0050 |
0.0080 |
0.0120 |
0.004 |
0.008 |
0.02 |
1.00 |
1.19 |
0.002 |
0.003 |
0.005 |
0.006 |
0.009 |
0.013 |
0.018 |
0.013 |
0.005 |
0.008 |
0.013 |
0.02 |
0.006 |
0.01 |
0.015 |
0.0012 |
0.0020 |
0.0035 |
0.0050 |
0.0080 |
0.0120 |
0.004 |
0.008 |
0.02 |
1.19 |
1.60 |
0.002 |
0.003 |
0.005 |
0.006 |
0.009 |
0.013 |
0.018 |
0.013 |
0.006 |
0.01 |
0.015 |
0.024 |
0.008 |
0.012 |
0.02 |
0.0016 |
0.0023 |
0.0040 |
0.0060 |
0.0100 |
0.0160 |
0.006 |
0.012 |
0.031 |
1.60 |
1.97 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.014 |
0.02 |
0.013 |
0.006 |
0.01 |
0.015 |
0.024 |
0.008 |
0.012 |
0.02 |
0.0016 |
0.0023 |
0.0040 |
0.0060 |
0.0100 |
0.0160 |
0.006 |
0.012 |
0.031 |
1.97 |
2.50 |
0.003 |
0.004 |
0.005 |
0.007 |
0.01 |
0.014 |
0.02 |
0.016 |
0.007 |
0.012 |
0.018 |
0.029 |
0.009 |
0.015 |
0.024 |
0.0018 |
0.0030 |
0.0045 |
0.0070 |
0.0120 |
0.0180 |
0.006 |
0.012 |
0.031 |
2.50 |
3.15 |
0.003 |
0.004 |
0.006 |
0.008 |
0.011 |
0.015 |
0.022 |
0.016 |
0.007 |
0.012 |
0.018 |
0.029 |
0.009 |
0.015 |
0.024 |
0.0018 |
0.0030 |
0.0045 |
0.0070 |
0.0120 |
0.0180 |
0.006 |
0.012 |
0.031 |
3.15 |
4.00 |
0.003 |
0.004 |
0.006 |
0.008 |
0.011 |
0.015 |
0.022 |
0.019 |
0.009 |
0.014 |
0.021 |
0.034 |
0.011 |
0.017 |
0.028 |
0.0022 |
0.0035 |
0.0050 |
0.0090 |
0.0140 |
0.0220 |
0.006 |
0.012 |
0.031 |
4.00 |
4.73 |
0.003 |
0.004 |
0.006 |
0.009 |
0.012 |
0.017 |
0.024 |
0.022 |
0.009 |
0.014 |
0.021 |
0.034 |
0.011 |
0.017 |
0.028 |
0.0022 |
0.0035 |
0.0050 |
0.0090 |
0.0140 |
0.0220 |
0.006 |
0.012 |
0.031 |
4.73 |
6.30 |
0.003 |
0.004 |
0.006 |
0.009 |
0.012 |
0.017 |
0.024 |
0.025 |
0.01 |
0.016 |
0.025 |
0.039 |
0.012 |
0.02 |
0.031 |
0.0025 |
0.0040 |
0.0060 |
0.0100 |
0.0160 |
0.0250 |
0.008 |
0.02 |
0.047 |
6.30 |
7.09 |
- |
0.005 |
0.007 |
0.01 |
0.014 |
0.02 |
0.028 |
0.037 |
0.01 |
0.016 |
0.025 |
0.039 |
0.012 |
0.02 |
0.031 |
0.0025 |
0.0040 |
0.0060 |
0.0100 |
0.0160 |
0.0250 |
0.008 |
0.02 |
0.047 |
7.09 |
9.85 |
- |
0.005 |
0.007 |
0.01 |
0.014 |
0.02 |
0.028 |
0.037 |
0.011 |
0.018 |
0.028 |
0.045 |
0.014 |
0.023 |
0.036 |
0.0028 |
0.0045 |
0.0070 |
0.0120 |
0.0180 |
0.0280 |
0.008 |
0.02 |
0.047 |
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