HomeLost wax casting linear tolerance
Lost wax casting linear tolerance
- Tolerance standard for investment casting is in according to VDG-merkblatt P-690 D1 to D3
- The tolerance belows are the recommended minimum for functional details. For non-funtional dimension, wider tolerances should be considered which will result in more enconomic designs
- Experience indicates that wider tolerances must be allowed for distances between centres of pins and holes.
- For dimension in excess of stated range or for special tolerance requirements please contact our sales department or engineering department
- D1 is Hua Xing's general acceptd dimension tolerance. any tolerance requesst over D1 either need to agree by our engineer or extra extra rectify cost may apply to acheived for the requirement.
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METRIC - Millimeters
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Tolerance grades (DCTG) material group D
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Apply on
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Free size
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Tolerenced
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Agreed
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Nominal
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D1
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D2
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D3
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size
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general dimensions
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some functional dimensions
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specific dimensions
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up to 6
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±0.15
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±0.12
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±0.10
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over 6 up to 10
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±0.18
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±0.14
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±0.11
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over 10 up to 18
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±0.22
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±0.17
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±0.14
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over 18 up to 30
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±0.26
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±0.20
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±0.17
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over 30 up to 50
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±0.40
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±0.31
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±0.25
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over 50 up to 80
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±0.45
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±0.37
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±0.30
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over 80 up to 120
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±0.55
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±0.44
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±0.35
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over 120 up to 180
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±0.80
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±0.65
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±0.50
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over 180 up to 250
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±1.20
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±0.95
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±0.75
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over 250 up to 315
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±1.30
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±1.10
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±0.80
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over 315 up to 400
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±1.80
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±1.40
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over 400 up to 500
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±2.00
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±1.60
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over 630 up to 800
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±2.70
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±2.20
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over 800 up to 1000
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±3.10
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±2.50
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over 1000 up to 1250
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±3.60
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