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Standard Cutting Tolerance:

Unless otherwise specified, Qinghe's standard shearing tolerance is ±3.2 mm 

 

Width Tolerance:

Sheet Thickness

Widths

Tolerances

16 gauge and heavier

Up to and including 1525 mm.

12.7 mm

Between 1525 and 1825 mm.

19.0 mm

17 gauge and lighter

Up to and including 915 mm.

12.7 mm

Between 915 and 1525 mm.

19.0 mm

Over 1525 mm.

25.4 mm

 

 

Length Tolerance:

-0.10m for length in coils

 

Panel Size Tolerance:

-Panel size(mm) x 0.5%

 

Hole  Size & Pitch Tolerance: 

 ±0.05 mm (for hole size&pitch below 2.5 mm)

 ±0.10 mm (for hole size&pitch above 2.5 mm to 5.0 mm)

 ±0.25 mm (for hole size&pitch above 5.0 mm to 12.7 mm)

 ±0.50 mm (for hole size&pitch above 12.7 mm to 50.0 mm)

 ±1.27 mm (for hole size&pitch above 50.0 mm)        

 

Standard Thickness Tolerance:

 

Gauge No. Plain (Carbon) Steel Stainless Steel Aluminum
Decimal Tolerance Decimal Tolerance Decimal Tolerance
mm mm mm mm mm mm
30 0.3048 0.3556 0.3175 N/A 0.2540 N/A
0.2540
28 0.3785 0.4318 0.3962 0.4216 0.3048 N/A
0.3302 0.3454
26 0.4572 0.5080 0.4521 0.4902 0.4064 0.4445
0.4064 0.4140 0.3683
24 0.6071 0.6858 0.5969 0.6312 0.5080 0.5588
0.5334 0.5325 0.4572
22 0.7595 0.8382 0.7442 0.7950 0.6350 0.6858
0.6858 0.6934 0.5842
20 0.9119 0.9906 0.9017 0.9525 0.8128 0.8636
0.8382 0.8409 0.7620
18 1.2141 1.3208 1.2192 1.2954 1.0160 1.0795
1.1176 1.1230 0.9525
16 1.5189 1.6510 1.5113 1.5861 1.2700 1.3462
1.3970 1.4135 1.1938
14 1.8974 2.0752 1.9837 2.0853 1.6002 1.6764
1.7196 1.8821 1.5240
12 2.6568 2.9108 2.7788 2.9058 2.0320 2.1209
2.4028 2.6518 1.9431
11 3.0378 3.2918 3.1750 3.3020 2.2860 2.3749
2.7838 3.0480 2.1971
10 3.4163 3.4315 3.5712 3.7236 2.5400 2.6416
3.3524 3.4188 2.5298
8 4.1758 4.3517 4.1910 4.3688 3.1750 3.2893
4.0578 4.0132 3.0607
3/16 Inch 4.7625 5.2070 N/A N/A N/A N/A
4.5212
1/4 Inch 6.3500 6.8580 N/A N/A N/A N/A
6.0960
5/16 Inch 7.9375 8.4582 N/A N/A N/A N/A
7.6962
3/8 Inch 9.5250 10.1092 N/A N/A N/A N/A
9.2710

 

Standard Squareness Tolerance:

Unless otherwise specified, Qinghe's standard squareness tolerance is ±3.2 mm 

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