精度等级 1：适用于所有未规定公差的尺寸
精度等级 2：适用于需要公差限定的重要尺寸
精度等级 3：只有某些尺寸可以达到该精度要求，必须与制造厂家达成协议，可能产生额外工艺要求和特殊工装夹具的费用。
注释：1 GTA 是铸造通用公差；与 DIN 1680，第二部分，相同
2 生产中，公差的离散范围受到材料性能的影响。出于此原因，不同的公差系列适用于不同的材质范畴：
D 组材质： 精度等级
铁基合金，镍基合金，钴基合金，铜基合金 D1 到 D3
A 组材质：
铝基和镁基合金 A1 到 A3
T 组材质：
钛基合金 T1 到 T3
1 线性公差（尺寸：毫米）
| 公称尺寸 | D1 | D2 | D3 | A1 | A2 | A3 | T1 | T2 | T3 |
| 公差范围 | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA | Feld | GTA |
| Up to 6 | 0.3 | 14 | 0.24 | 13.5 | 0.2 | 13 | 0.3 | 14 | 0.24 | 13.5 | 0.2 | 13 | 0.5 | 15 | 0.4 | 14.5 | 0.4 | 14 |
| Over 6 to 10 | 0.36 | 0.28 | 0.22 | 0.36 | 0.28 | 0.22 | 0.6 | 0.4 | 0.4 |
| Over 10 to18 | 0.44 | 0.34 | 0.28 | 0.44 | 0.34 | 0.28 | 0.7 | 0.5 | 0.44 |
| Over 18 to 30 | 0.52 | 04 | 0.34 | 0.52 | 0.40 | 0.34 | 0.8 | 0.7 | 0.52 |
| Over 30 to 50 | 0.8 | 14.5 | 0.62 | 14 | 0.5 | 13.5 | 0.8 | 14.5 | 0.62 | 14 | 0.5 | 13.5 | 1.0 | 0.8 | 0.62 |
| Over 50 to 80 | 0.9 | 0.74 | 0.6 | 0.9 | 0.74 | 0.6 | 1.5 | 15.5 | 1.2 | 15 | 0.9 | 14.5 |
| Over 80 to 120 | 1.1 | 0.88 | 0.7 | 1.1 | 0.88 | 0.7 | 1.7 | 1.4 | 1.1 |
| Over 120 to 180 | 1.6 | 15 | 1.3 | 14.5 | 1.0 | 14 | 1.6 | 15 | 1.3 | 14.5 | 1.0 | 14 | 2.0 | 1.6 | 1.3 |
| Over 180 to 250 | 2.4 | 15.5 | 1.9 | 15 | 1.5 | 14.5 | 1.9 | 1.5 | 1.2 | 2.4 | 1.9 | 1.5 |
| Over 250 to 315 | 2.6 | 2.2 | 1.6 | 2.6 | 15.5 | 2.2 | 15 | 1.6 | 14.5 | 3.2 | 16 | 2.6 | 15.5 |
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| Over 315 to 400 | 3.6 | 16 | 2.8 | 15.5 |
| 2.8 | 2.4 | 1.7 | 3.6 | 2.8 |
| Over 400 to 500 | 4.0 | 3.2 | 3.2 | 2.6 | 1.9 | 4.0 | 3.2 |
| Over 500 to 630 | 5.4 | 16.5 | 4.4 | 16 | 4.4 | 16 | 3.4 | 15.5 |
| 5.4 | 16.5 | 4.4 | 16 |
| Over 630 to 800 | 5.2 | 5.0 | 5.0 | 4.0 | 6.2 | 5.0 |
| Over 800 to 1000 | 7.2 |
| 5.6 | 4.6 | 7.2 |
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| Over 1000 to 1250 |
| 8.8 |
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2 形位公差
1）直线度和线性形状
| 公称尺寸 | D1 | D2 | D3 | A1 | A2 | A3 |
| 公差范围 | Feld. | Fled. | Fled. | Fled. | Fled. | Fled. |
| Up to 6 | 0.15 | 0.12 | 0.10 | 0.20 | 0.18 | 0.15 |
| Over 6 to 10 | 0.18 | 0.14 | 0.12 | 0.20 | 0.18 | 0.15 |
| Over 10 to 18 | 0.25 | 0.20 | 0.15 | 0.20 | 0.18 | 0.15 |
| Over 18 to 30 | 0.30 | 0.25 | 0.20 | 0.20 | 0.18 | 0.15 |
| Over 30 to 50 | 0.40 | 0.35 | 0.25 | 0.30 | 0.25 | 0.20 |
| Over 50 to 80 | 0.60 | 0.45 | 0.30 | 0.35 | 0.30 | 0.25 |
| Over 80 to 120 | 0.80 | 0.60 | 0.45 | 0.50 | 0.40 | 0.30 |
| Over 120 to 180 | 1.10 | 0.80 | 0.60 | 0.70 | 0.50 | 0.40 |
| Over 180 to 250 | 1.50 | 1.15 | 0.90 | 0.90 | 0.70 | 0.55 |
| Over 250 to 315 | 1.90 | 1.40 | 1.12 | 1.10 | 0.90 | 0.70 |
| Over 315 to 400 | 2.40 | 1.80 | 1.50 | 1.35 | 1.10 | 0.90 |
| Over 400 to 500 | 3.00 | 2.20 | 1.80 | 1.60 | 1.30 | 1.10 |
| Over 500 to 630 |
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| 1.80 | 1.50 | 1.30 |
| Over 630 to 800 |
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| 2.00 | 1.70 | 1.50 |
| Over 800 to 1000 |
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| 2.20 | 1.90 | 1.70 |
2）平面度，表面形状，圆度
| 公称尺寸 | D1 | D2 | D3 | A1 | A2 | A3 |
| 公差范围 | Feld. | Feld. | Feld | Feld | Feld | Feld |
| Up to 6 | 0.20 | 0.15 | 0.12 | 0.20 | 0.18 | 0.15 |
| Over 6 to 10 | 0.25 | 0.20 | 0.15 | 0.20 | 0.18 | 0.15 |
| Over 10 to 18 | 0.40 | 0.30 | 0.20 | 0.25 | 0.22 | 0.18 |
| Over 18 to 30 | 0.50 | 0.40 | 0.30 | 0.30 | 0.25 | 0.20 |
| Over 30 to 50 | 0.60 | 0.50 | 0.40 | 0.40 | 0.30 | 0.25 |
| Over 50 to 80 | 0.80 | 0.65 | 0.50 | 0.50 | 0.40 | 0.30 |
| Over 80 to 120 | 1.00 | 0.80 | 0.65 | 0.65 | 0.50 | 0.40 |
| Over 120 to 180 | 1.30 | 1.10 | 0.85 | 0.90 | 0.70 | 0.55 |
| Over 180 to 250 | 1.80 | 1.15 | 1.20 | 1.15 | 0.90 | 0.75 |
| Over 250 to 315 | 2.30 | 1.80 | 1.50 | 1.35 | 1.10 | 0.90 |
| Over 315 to 400 | 2.90 | 2.30 | 1.85 | 1.60 | 1.35 | 1.10 |
| Over 400 to 500 | 3.40 | 2.80 | 2.20 | 1.80 | 1.55 | 1.30 |
| Over 500 to 630 |
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| 2.00 | 1.80 | 1.50 |
| Over 630 to 800 |
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| 2.25 | 2.00 | 1.70 |
| Over 800 to 1000 |
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| 2.50 | 2.00 | 1.90 |
3）同轴度，圆柱度
| 公称尺寸 | D1 | D2 | D3 | A1 | A2 | A3 |
| 公差范围 | Feld. | Feld. | Feld | Feld | Feld | Feld |
| Up to 6 | 0.30 | 0.25 | 0.20 | 0.25 | 0.20 | 0.18 |
| Over 6 to 10 | 0.35 | 0.30 | 0.25 | 0.25 | 0.20 | 0.18 |
| Over 10 to 18 | 0.50 | 0.40 | 0.30 | 0.30 | 0.25 | 0.20 |
| Over 18 to 30 | 0.60 | 0.50 | 0.40 | 0.40 | 0.30 | 0.25 |
| Over 30 to 50 | 0.80 | 0.60 | 0.50 | 0.60 | 0.45 | 0.30 |
| Over 50 to 80 | 1.10 | 0.80 | 0.60 | 0.80 | 0.70 | 0.45 |
| Over 80 to 120 | 1.30 | 1.00 | 0.80 | 1.10 | 0.90 | 0.65 |
| Over 120 to 180 | 1.80 | 1.40 | 1.10 | 1.15 | 1.30 | 0.90 |
| Over 180 to 250 | 2.40 | 1.90 | 1.60 | 2.00 | 1.60 | 1.30 |
| Over 250 to 315 | 3.00 | 2.50 | 2.00 | 2.40 | 2.00 | 1.60 |
| Over 315 to 400 | 3.80 | 3.20 | 2.50 | 2.90 | 2.40 | 2.00 |
| Over 400 to 500 | 4.40 | 3.70 | 3.00 | 3.50 | 3.00 | 2.50 |
| Over 500 to 630 |
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| Over 630 to 800 |
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| Over 800 to 1000 |
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4） 平行度，对称度
| 公称尺寸 | D1 | D2 | D3 | A1 | A2 | A3 |
| 公差范围 | Feld. | Feld. | Feld | Feld | Feld | Feld |
| 小于 6 | 0.25 | 0.20 | 0.15 | 0.20 | 0.18 | 0.15 |
| 6 ～ 10 | 0.30 | 0.25 | 0.20 | 0.20 | 0.18 | 0.15 |
| 10 ～ 18 | 0.40 | 0.30 | 0.25 | 0.25 | 0.20 | 0.18 |
| 18 ～ 30 | 0.50 | 0.40 | 0.30 | 0.35 | 0.25 | 0.20 |
| 30 ～ 50 | 0.70 | 0.60 | 0.50 | 0.45 | 0.30 | 0.25 |
| 50 ～ 80 | 1.00 | 0.80 | 0.65 | 0.55 | 0.40 | 0.30 |
| 80 ～ 120 | 1.30 | 1.10 | 0.90 | 0.70 | 0.50 | 0.45 |
| 120 ～ 180 | 1.80 | 1.15 | 1.20 | 0.90 | 0.75 | 0.60 |
| 180 ～ 250 | 2.50 | 2.00 | 1.60 | 1.20 | 1.00 | 0.80 |
| 250 ～ 315 | 3.15 | 2.60 | 2.00 | 1.50 | 1.20 | 1.00 |
| 315 ～ 400 | 3.80 | 3.20 | 2.50 | 1.90 | 1.60 | 1.30 |
| 400 ～ 500 | 4.40 | 3.80 | 3.20 | 2.40 | 2.00 | 1.60 |
| 500 ～ 630 |
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| 3.00 | 2.50 | 2.00 |
| 630 ～ 800 |
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| 3.80 | 3.15 | 2.50 |
| 800 ～ 1000 |
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| 4.80 | 4.00 | 3.20 |
3 角度公差
公称尺寸
范围 | 精度等级 |
| 1 | 2 | 3 |
| 最大尺寸偏差 |
| 角度（分） | mm/100mm | 角度（分） | mm/100mm | 角度（分） | mm/100mm |
| Up to 30 | 21
30 | 0.87 | 21
30 | 0.87 | 21
20 | 0.58 |
| Over 30 to 100 | 21
30 | 0.87 | 21
20 | 0.58 | 21
15 | 0.44 |
| Over 100 to 200 | 21
30 | 0.87 | 21
15 | 0.44 | 21
10 | 0.29 |
| over 200 | 21
20 | 0.58 | 21
15 | 0.44 | 21
10 | 0.29 |
注释：1）公称尺寸范围是由短边长度决定的
2）角度偏差可能出现在两个方向上
4 曲线半径公差值
| 公称尺寸 | 精度等级 |
| 1 | 2 | 3 |
| Up to 5 | ±0.30 | ±0.20 | ±0.15 |
| Over 5 to 10 | ±0.45 | ±0.35 | ±0.25 |
| Over 10 to 120 | ±0.70 | ±0.50 | ±0.40 |
| over 120 | Linear |
5 壁厚的公差
| 给定面积最小边的长度毫米 | D 组材质
| A 组材质
| T 组材质
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| Up to 50 | ±0.25 | ±0.25 | ±0.30 |
| Over 50 to 100 | ±0.30 | ±0.30 | ±0.40 |
| Over 100 to 180 | ±0.40 | ±0.40 | ±0.50 |
| Over 180 to 315 | ±0.50 | ±0.50 | ±0.60 |
| over 315 | ±0.60 | ±0.60 | ±0.70 |
6 表面粗糙度
表面质量
要求标准
| .D 组材质 | A 组材质 | T 组材质 |
| CLA.(uich) | RA(um) | CLA(uich) | RA(um) | CLA(uich) | RA(un) |
| N7 | 63 | 1.6 |
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| N8 | 125 | 3.2 | 125 | 3.2 |
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| N9 | 250 | 6.3 | 250 | 6.3 | 250 | 6.3 |
公差 N7，N8 和特殊表面经过双方同意，并在图纸上标明；除非另有规定，否则，N9，喷丸处理后的表面状态，是通常的交货条件；
7 铸造孔，盲孔的尺寸
| Φ或□ d(mm) | 最大长度或深度 |
| 通孔 | 盲孔 |
| 2 to 4 | =1×d | =0.6×d |
| Over 2 to 6 | =2×d | =1.0×d |
| Over 6 to 10 | =3×d | =1.6×d |
| over 10 | =4×d | =2.0×d |
8 槽，或密封沟槽的尺寸
| 宽度 | 最大深度. |
| 开式 | 闭式 |
| 2 ～ 4 | =1×d | =0.6×d |
| 2 ～ 6 | =2×d | =1.0×d |
| 6 ～ 10 | =3×d | =1.6×d |
| over 10 | =4×d | =2.0×d |
9 ISO8062
| 铸件基本尺寸 | 公 差 等 级 |
| 大于 | 至 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| — | 3 | 0.14 | 0.20 | 0.28 | 0.40 | 0.56 | 0.80 | 1.2 | 1.6 | 1.6 | 1.6 | 2.3 | — | — | — |
| 3 | 6 | 0.16 | 0.24 | 0.32 | 0.48 | 0.64 | 0.90 | 1.3 | 1.8 | 2.5 | 2.5 | 2.5 | — | — | — |
| 6 | 10 | 0.18 | 0.26 | 0.36 | 0.52 | 0.74 | 1.0 | 1.5 | 2.0 | 2.8 | 4.2 | 4.2 | — | — | — |
| 10 | 16 | 0.20 | 0.28 | 0.38 | 0.54 | 0.78 | 1.1 | 1.6 | 2.2 | 3.0 | 4.4 | 5.0 | — | — | — |
| 16 | 25 | 0.22 | 0.30 | 0.42 | 0.58 | 0.82 | 1.2 | 1.7 | 2.4 | 3.2 | 4.6 | 6.0 | 8 | 10 | 12 |
| 25 | 40 | 0.24 | 0.32 | 0.46 | 0.64 | 0.90 | 1.3 | 1.8 | 2.6 | 3.6 | 5.0 | 7.0 | 9 | 11 | 14 |
| 40 | 63 | 0.26 | 0.36 | 0.50 | 0.70 | 1.0 | 1.4 | 2.0 | 2.8 | 4.0 | 5.6 | 8.0 | 10 | 12 | 16 |
| 63 | 100 | 0.28 | 0.40 | 0.56 | 0.78 | 1.1 | 1.6 | 2.2 | 3.2 | 4.4 | 6.0 | 9.0 | 11 | 14 | 18 |
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