Investment Casting Tolerance & Specifications - Creation Technocast

CREATION Group of Company

Way above others

Creation Technocast is an ISO 9001:2015 certified manufacturer and exporter of precision investment castings, sand castings, forgings and precision machined components.

Contact Info

Tolerance & Specifications

Creation Technocast maintains strict dimensional tolerances for investment casting, conforming to international standards.

**Linear Tolerances**
Nominal Size (mm)	D1 - General Engineering Dimensions	D2 - Functional Dimensions
0 to 6	±0.15	±0.12
6 to 10	±0.18	±0.14
10 to 18	±0.22	±0.17
18 to 30	±0.26	±0.20
30 to 50	±0.40	±0.31
50 to 80	±0.45	±0.37
80 to 120	±0.55	±0.44
120 to 180	±0.80	±0.65
180 to 250	±1.20	±0.95
250 to 315	±1.30	±1.10
315 to 400	±1.80	±1.40

**Straightness, Flatness, Parallelism, Shape**
Precision Class	Length ≤25mm	Length 25-50mm	Percentage
D1	0.15 mm	0.25 mm	0.6%
D2	0.10 mm	0.20 mm	0.4%

**Angle Values and Right Angles**
Precision Class	≤30mm	30-100mm	100-200mm	>200mm
D1 Deviation	30 min	30 min	30 min	20 min
D1 mm/100mm	0.87	0.87	0.87	0.58
D2 Deviation	30 min	20 min	15 min	15 min
D2 mm/100mm	0.87	0.58	0.44	0.44

**Surface Quality (ISO R 468, DIN 4769, VSM10321)**
Ra	Rz	Rt	Grade
6.3	23-32	25-38	N9

Need custom tolerances for your project? Consult our engineers.