铸造公差

Dimension
尺寸

Normal
一般要求

Premium
特殊要求

General Dimension
尺寸公差

< 25mm
25 ~ 50mm
50 ~ 75mm
75 ~ 100mm
100 ~ 150mm
> 150mm

± 0.25
± 0.4
± 0.5
± 0.7
± 0.8%
± 1.0%

± 0.15
± 0.30
± 0.40
± 0.50
± 0.65
± 0.8%

Straightness
真直度公差

< 50mm
50 ~ 100mm
100 ~ 150mm
> 150mm

± 0.25
± 0.38
± 0.5
± 0.76

± 0.13
± 0.25
± 0.30
± 0.37

Flatness
真平度公差

< 25mm
25 ~ 50mm
50 ~ 100mm
100 ~ 150mm

± 0.2
± 0.4
± 0.64
± 0.76

± 0.1
± 0.15
± 0.25
± 0.38

Flatness
真平度公差

< 25mm
25 ~ 50mm
50 ~ 100mm
100 ~ 150mm

± 0.2
± 0.4
± 0.64
± 0.76

± 0.1
± 0.15
± 0.25
± 0.38

Concentricity
同心度公差

(Wall Thickness 6mm)
壁厚 6mm
(Wall Thickness 12mm)
壁厚12mm

± 0.2

± 0.3

± 0.1

± 0.2

Radius
半径公差

< 50mm
> 50mm

± 0.4
± 0.8%

± 0.13
± 0.6%

Roundness
真圆度公差

13 mm
25 mm
38 mm
50 mm

± 0.13
± 0.25
± 0.3
± 0.38

± 0.1
± 0.15
± 0.20
± 0.25

Roughness
表面光度

Carbon Steel 碳钢
(300 Series S. S.)
300 系不锈钢
(400 Series S. S.)
400 系不锈钢

90 ~ 125RMS

90 ~ 125RMS

100 ~ 125RMS

60 ~ 90RMS

60 ~ 90RMS

60 ~ 100RMS

Minimum Wall Thickness
最小壁厚

Carbon Steel 碳钢
Stainless Steel 不锈钢

1.5mm

1.0mm

Weight Limit
重量限制

5g ~ 25kg

5g ~ 35kg

Dimension Limit
尺寸限制

(below 300 * 300 * 300mm)
300 * 300* 300以内

(below 350 * 350 *350mm)
350 * 350* 350mm以内

W

>= 2.5

4

6

8

10

16

20

24

L,D

<=5

8

20

32

46

80

120

150

D

Tmax

T,max

3-5

5-10

5

> 5-10

> 10-30

> 5-15

> 10-20

> 30-60

> 15-25

> 20-40

> 60-120

> 25-50

> 40-60

> 120-200

> 50-80

> 60-100

> 200-300

> 80-100

> 100

> 300-350

> 100-120

Angle Type
角度形式

± 1°

± 2°

± 2°

Premium 
特別公差

±0.5°

± 1°

± 1°

Avoid the quick changes of casting structure, use fillet radiuson intemal angle when possible, which is no less than R0.3mm
铸件结构应避免急剧变化，尽可能避免尖角，圆角应达到R0.3mm以上。