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The Capability Of Dimensional Accuracy Control


Casting Linear Dimensional Tolerance Class


Size Range mmGeneral Tolerance mmEquivalent Standard Equivalent Standard Special ToleranceEquivalent standardEquivalent standard
// ISO8062-3
(2007)
VDG P690
(1999)
/ ISO8062-3
(2007)
VDG P690
(1999)
0-10 ±0.26 DCTG6D2 ±0.13 DCTG4 D3
10-16 ±0.27 DCTG6D1 ±0.14 DCTG4 D2
16-25 ±0.28 DCTG6D1 ±0.15 DCTG4 D2
25-40 ±0.32 DCTG6D2 ±0.23 DCTG5 D2
40-63 ±0.35 DCTG6D2 ±0.25 DCTG5 D2
63-100 ±0.55 DCTG7D1 ±0.39 DCTG6 D2
100-160 ±0.90 DCTG8D1 ±0.60 DCTG7 D2
160-250 ±1.40 DCTG9D1 ±1.00 DCTG8 D2
250-400 ±2.20 DCTG10D1 ±1.60 DCTG9 D2
>400 ±0.8% DCTG11D1 ±0.5% DCTG9 D2

Casting Geometric Tolerance Class


1.Casting Straightness Tolerance

Size Range mm General Tolerance mm Equivalent Standard Equivalent Standard Special Tolerance
ISO8062-3
(2007)
VDG P690
(1999)
ISO8062-3
(2007)
VDG P690
(1999)
0-≤100.18GCTG4D10.12GCTG3D2
>10-≤300.27GCTG4D10.18GCTG3D2
>30-≤1000.6GCTG5D10.4GCTG4D2
>100-≤3001.4GCTG6D20.6GCTG4D3
>300-≤5003GCTG7D11.4GCTG5D2

2.Casting Flatness Tolerance

Size Range mm General Tolerance mm Equivalent Standard Special Tolerance Equivalent Standard
ISO8062-3
(2007)
VDG P690
(1999)
ISO8062-3
(2007)
VDG P690
(1999)
0-≤100.27GCTG4D10.18GCTG3D2
>10-≤300.4GCTG4D10.27GCTG3D2
>30-≤1000.6GCTG4D10.4GCTG3D2
>100-≤3001.4GCTG5                   D10.9GCTG4D2
>300-≤5002GCTG6                   D21.4GCTG4D3

3.Casting Roundness, Parallelism, Squareness, Symmetry Tolerances

Size Range mmGeneral Tolerance mmEquivalent StandardSpecial ToleranceEquivalent Standard
ISO8062-3
(2007)
VDG P690
(1999)
ISO8062-3
(2007)
VDG P690
(1999)
0-≤100.27GCTG3D20.27GCTG3D2
>10-≤300.4GCTG3D20.4GCTG3D2
>30-≤1000.6GCTG3D10.6GCTG3D2
>100-≤3001.4GCTG4D10.9GCTG3D2
>300-≤5003GCTG5D22GCTG4D3

4.Casting Concentricity Tolerance

Size Range mm General Tolerance mm Equivalent Standard Special Tolerance Equivalent Standard
ISO8062-3
(2007)
VDG P690
(1999)
ISO8062-3
(2007)
VDG P690
(1999)
0-≤100.4GCTG3D10.27GCTG2D2
>10-≤300.6GCTG3D10.4GCTG2D2
>30-≤1000.9GCTG3D10.6GCTG2D2
>100-≤3002GCTG4D11.4GCTG3D2
>300-≤5003GCTG4D22GCTG3D3
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China Foundry is advance investment casting foundry for various metal components in 1995. Our lost wax casting process provides a large freedom in both design and material choice for your desired parts.What’s more, our engineering departement will give you a complete casting proposal about product design, material choice, machining details, etc for your reference. Our business core is to provide quality precision castings with high working performance.

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