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1、热轧钢板（钢带）的理论质量（GB/T709-2006）
|
厚度/mm |
理论质量/(kg/m2) |
厚度/mm |
理论质量/(kg/m2) |
厚度/mm |
理论质量/(kg/m2) |
|
0.35 |
2.748 |
0.9 |
7.065 |
2 |
15.7 |
|
0.5 |
3.925 |
1 |
7.85 |
2.2 |
17.27 |
|
0.55 |
4.318 |
1.2 |
9.42 |
2.5 |
19.625 |
|
0.6 |
4.71 |
1.3 |
10.205 |
2.8 |
21.98 |
|
0.65 |
5.103 |
1.4 |
10.99 |
3 |
23.55 |
|
0.7 |
5.495 |
1.5 |
11.775 |
3.2 |
25.12 |
|
0.75 |
5.888 |
1.6 |
12.56 |
3.5 |
27.475 |
|
0.8 |
6.28 |
1.8 |
14.13 |
3.8 |
29.83 |
|
3.9 |
30.615 |
25 |
196.25 |
90 |
706.5 |
|
4 |
31.4 |
26 |
204.1 |
95 |
745.75 |
|
4.5 |
35.325 |
28 |
219.8 |
100 |
785 |
|
5 |
39.25 |
30 |
235.5 |
105 |
824.25 |
|
6 |
47.1 |
32 |
251.2 |
110 |
863.5 |
|
7 |
54.95 |
34 |
266.9 |
120 |
942 |
|
8 |
62.8 |
36 |
282.6 |
125 |
981.25 |
|
9 |
70.65 |
38 |
298.8 |
130 |
1020.5 |
|
10 |
78.5 |
40 |
314 |
140 |
1099 |
|
11 |
86.35 |
42 |
329.7 |
150 |
1177.5 |
|
12 |
94.2 |
45 |
353.25 |
160 |
1256 |
|
13 |
102.05 |
48 |
376.8 |
165 |
1295.25 |
|
14 |
109.9 |
50 |
392.5 |
170 |
1334.5 |
|
15 |
117.75 |
52 |
408.2 |
180 |
1413 |
|
16 |
125.6 |
55 |
431.75 |
185 |
1452.25 |
|
17 |
133.45 |
60 |
471 |
190 |
1491.5 |
|
18 |
141.3 |
65 |
510.25 |
195 |
1530.75 |
|
19 |
149.15 |
70 |
549.5 |
200 |
1570 |
|
20 |
157 |
75 |
588.75 |
300 |
2355 |
|
21 |
164.85 |
80 |
628 |
400 |
3140 |
|
22 |
172.7 |
85 |
667.25 |
|
|
单轧钢板的厚度允许偏差（N类） （单位：mm）
|
公称厚度 |
下列公称宽度的厚度允许偏差 |
|||
|
≤1500 |
＞1500~2500 |
＞2500~4000 |
＞4000~4800 |
|
|
3.00~5.00 |
±0.45 |
±0.55 |
±0.65 |
— |
|
＞5.00~8.00 |
±0.50 |
±0.60 |
±0.75 |
— |
|
＞8.00~15.0 |
±0.55 |
±0.65 |
±0.80 |
±0.90 |
|
＞15.0~25.0 |
±0.65 |
±0.75 |
±0.90 |
±1.10 |
|
＞25.0~40.0 |
±0.70 |
±0.80 |
±1.00 |
±1.20 |
|
＞40.0~60.0 |
±0.80 |
±0.90 |
±1.10 |
±1.30 |
|
＞60.0~100 |
±0.90 |
±1.10 |
±1.30 |
±1.50 |
|
＞100~150 |
±1.20 |
±1.40 |
±1.60 |
±1.80 |
|
＞150~200 |
±1.40 |
±1.60 |
±1.80 |
±1.90 |
|
＞200~250 |
±1.60 |
±1.80 |
±2.00 |
±2.20 |
|
＞250~300 |
±1.80 |
±2.00 |
±2.20 |
±2.40 |
|
＞300~400 |
±2.00 |
±2.20 |
±2.40 |
±2.60 |
2、冷轧钢板（钢带）的理论质量（GB/T708-2006）
|
厚度/mm |
理论质量/(kg/m2) |
厚度/mm |
理论质量/(kg/m2) |
厚度/mm |
理论质量/(kg/m2) |
|
0.2 |
1.57 |
0.8 |
6.28 |
2 |
15.7 |
|
0.25 |
1.936 |
0.9 |
7.065 |
2.2 |
17.27 |
|
0.3 |
2.355 |
1 |
7.85 |
2.5 |
19.625 |
|
0.35 |
2.748 |
1.1 |
8.635 |
2.8 |
21.98 |
|
0.4 |
3.14 |
1.2 |
9.42 |
3 |
23.55 |
|
0.45 |
3.533 |
1.3 |
10.205 |
3.2 |
25.12 |
|
0.55 |
4.318 |
1.4 |
10.99 |
3.5 |
27.475 |
|
0.6 |
4.71 |
1.5 |
11.775 |
3.8 |
29.83 |
|
0.65 |
5.103 |
1.6 |
12.56 |
3.9 |
30.615 |
|
0.7 |
5.495 |
1.7 |
13.345 |
4 |
31.4 |
|
0.75 |
5.888 |
1.8 |
14.13 |
|
|
冷轧钢板和钢带的厚度允许偏差 （单位：mm）
|
公称厚度 |
厚度允许偏差① |
|||||
|
普通精度 PT.A |
较高精度 PT.B |
|||||
|
公称宽度 |
公称宽度 |
|||||
|
≤1200 |
＞1200~1500 |
＞1500 |
≤1200 |
＞1200~1500 |
＞1500 |
|
|
≤0.40 |
±0.04 |
±0.05 |
±0.06 |
±0.025 |
±0.035 |
±0.045 |
|
＞0.40~0.60 |
±0.05 |
±0.06 |
±0.07 |
±0.035 |
±0.045 |
±0.050 |
|
＞0.60~0.80 |
±0.06 |
±0.07 |
±0.08 |
±0.040 |
±0.050 |
±0.050 |
|
＞0.80~1.00 |
±0.07 |
±0.08 |
±0.09 |
±0.045 |
±0.060 |
±0.060 |
|
＞1.00~1.20 |
±0.08 |
±0.09 |
±0.10 |
±0.055 |
±0.070 |
±0.070 |
|
＞1.20~1.60 |
±0.10 |
±0.11 |
±0.11 |
±0.070 |
±0.080 |
±0.080 |
|
＞1.60~2.00 |
±0.12 |
±0.13 |
±0.13 |
±0.080 |
±0.090 |
±0.090 |
|
＞2.00~2.50 |
±0.14 |
±0.15 |
±0.15 |
±0.100 |
±0.110 |
±0.110 |
|
＞2.50~3.00 |
±0.16 |
±0.17 |
±0.17 |
±0.110 |
±0.120 |
±0.120 |
|
＞3.00~4.00 |
±0.17 |
±0.19 |
±0.19 |
±0.140 |
±0.150 |
±0.150 |
注：规定的最小屈服强度为280MPa~＜360Mpa的钢板和钢带的厚度允许偏差比表中规定值增加20%；规定的最小屈服强度为不小于360Mpa的钢板和钢带的厚度允许偏差比表规定值增加40%。
① 距钢带焊缝处15m内的厚度允许偏差比表中规定值增加60%；距钢带两端各15m内的厚度允许偏差比表中规定值增加60%；
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