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COLD DRAWN TOLERANCES | |||||||||||||||||
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Tolerance Class by the End Status | EN 10278 | ||||||||||||||||
Final Status | h 6 | h 7 | h 8 | h 9 | h 10 | h 11 | h 12 | ||||||||||
Drawn | R | R | R,S,H | R,S,H | |||||||||||||
Turned | R | R | R | R | |||||||||||||
Ground | R | R | R | R | R | R | R | ||||||||||
Polished | R | R | R | R | R | R | R | ||||||||||
R = Round , S = Square , H = Hexagon |
Tolerance Classes | EN 10278 | ||||||
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Dimension mm | h 6 | h 7 | h 8 | h 9 | h 10 | h 11 | h 12 |
> 1 - ≤ 3 | 0.006 | 0.010 | 0.014 | 0.025 | 0.040 | 0.060 | 0.100 |
> 3 - ≤ 6 | 0.008 | 0.012 | 0.018 | 0.030 | 0.048 | 0.075 | 0.120 |
> 6 - ≤ 10 | 0.009 | 0.015 | 0.022 | 0.036 | 0.058 | 0.090 | 0.150 |
> 10 - ≤ 18 | 0.011 | 0.018 | 0.027 | 0.043 | 0.070 | 0.110 | 0.180 |
> 18 - ≤ 30 | 0.013 | 0.021 | 0.033 | 0.052 | 0.084 | 0.130 | 0.210 |
> 30 - ≤ 50 | 0.016 | 0.025 | 0.039 | 0.062 | 0.100 | 0.160 | 0.250 |
> 50 - ≤ 80 | 0.019 | 0.030 | 0.046 | 0.074 | 0.120 | 0.190 | 0.300 |
> 80 - ≤ 120 | 0.022 | 0.035 | 0.054 | 0.087 | 0.140 | 0.220 | 0.350 |
> 120 - ≤ 180 | 0.025 | 0.040 | 0.063 | 0.100 | 0.160 | 0.250 | 0.400 |
> 180 - ≤ 200 | 0.029 | 0.046 | 0.072 | 0.115 | 0.185 | 0.290 | 0.460 |
Tolerances for Cold Drawn Flats | EN 10278 | ||
---|---|---|---|
Width (mm) | Deviation (mm) | Class | |
≤ 18 | + 0 | - 0.11 | h 11 |
> 18 - ≤ 30 | + 0 | - 0.13 | h 11 |
>30 - ≤ 50 | + 0 | - 0.16 | h 11 |
> 50 - ≤ 80 | + 0 | - 0.19 | h 11 |
> 80 - ≤ 100 | + 0 | - 0.22 | h 11 |
>100 - ≤ 150 | + 0.50 | - 0.50 | |
> 150 - ≤ 200 | + 1.00 | - 1.00 | |
> 200 - ≤ 300 | + 2.00 | - 2.00 | |
> 300 - ≤ 400 | + 2.50 | - 2.50 |
Tolerances for Cold Drawn Flats | EN 10278 | |
---|---|---|
Thickness (mm) | Deviation (mm) | Class |
> 3 - ≤ 6 | - 0.075 | h 11 |
> 6 - ≤ 10 | - 0.090 | h 11 |
> 10 - ≤ 18 | - 0.110 | h 11 |
> 18 - ≤ 30 | - 0.130 | h 11 |
> 30 - ≤ 50 | - 0.160 | h 11 |
> 50 - ≤ 60 | - 0.190 | h 11 |
> 60 - ≤ 80 | - 0.300 | h 12 |
> 80 - ≤ 100 | - 0.350 | h 12 |
Tolerance for Deviation from Linearity | EN 10278 | ||
---|---|---|---|
Product Type | Steel Group | Nominal Dimension | Maximum Deviation (mm) |
Round | 0.25 % C | 1.0 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 1.5 | ||
Stainless Steels, Bearing Steels, Tool Steels | 1.0 | ||
Square and Hexagon | < 0.25 % C | d < 75 mm | 1.0 |
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.0 | ||
Stainless Steels, Bearing Steels, Tool Steels | 1.0 | ||
< 0.25 % C | 1.5 | ||
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.5 | ||
Stainless Steels, Bearing Steels, Tool Steels | 1.5 | ||
Flats | From Width | ||
< 0.25 % C | w < 120 mm | 1.5 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 1.5 | ||
Stainless Steels, Bearing Steels, Tool Steels | 1.5 | ||
From Thickness | |||
< 0.25 % C | w < 120 mm | 1.5 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.0 | ||
Stainless Steels, Bearing Steels, Tool Steels | 2.0 | ||
From Width | |||
< 0.25 % C | w < 120 mm | 1.5 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.0 | ||
Stainless Steels, Bearing Steels, Tool Steels | 2.0 | ||
From Thickness | |||
< 0.25 % C | w ≥ 120 mm b / t <10 : 1 | 2.0 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.5 | ||
Stainless Steels, Bearing Steels, Tool Steels | 2.5 | ||
From Width | |||
< 0.25 % C | w ≥ 120 mm w / t ≥10 : 1 | 2.0 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 2.5 | ||
Stainless Steels, Bearing Steels, Tool Steels | 2.5 | ||
From Thickness | |||
< 0.25 % C | w ≥ 120 mm w / t ≥10 : 1 | 2.5 | |
0.25 % C, Alloy Steels, Heat Treatable Steels | 3.0 | ||
Stainless Steels, Bearing Steels, Tool Steels | 3.0 |
Length Types and Tolerances | EN 10278 | ||
---|---|---|---|
Length Type | Length (mm) | Length Tolerance (mm) | Specification at the Time of Order |
Production Length | 3000 - 9000 | ± 500 | Length |
Supply Length | 3000 veya 6000 | + 200 | Example: Stock 6000 |
Trimmed Length | Up to 9000 | Conforms to Specification within ±5 | Length and Tolerance |