INVESTMENT CASTING
Tolerance Materials Process Machining Quality Products

TOLERANCE
Dimensions Normal Tolerance Premium Tolerance
Dimensional tolerance
Up to 5mm ±0.15mm ±0.10mm
5-25mm ±0.25mm ±0.15mm
25-50mm ±0.40mm ±0.30mm
50-75mm ±0.50mm ±0.40mm
75-100mm ±0.70mm ±0.50mm
100mm-150mm ±0.90mm ±0.60mm
150mm and over ±1% ±1%
Roundness tolerance
13mm ±0.13mm ±0.10mm
25mm ±0.25mm ±0.15mm
38mm ±0.30mm ±0.20mm
50mm ±0.38mm ±0.25mm
Angle tolerance
Up to 45° ±0.5° ±0.5°
45° -90° ±1° ±1°
1±1° . ±1°
Surface Roughness
Ra1.6-3.2µm