Bright Bars

Bright Bars

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COLD DRAWN +C

Section Dimension (mm) Dimension (inches) Tolerances
Flat bars, width from 40 to 125 from 1-9/16″ to 4-15/16″ h11
Flat bars, thickness from 16 to 25 from 5/8″ to 1″ h11
Square bars from 16 to 60 from 5/8″ to 2-3/8″ h11
Round bars from 5 to 65 from 3/16″ to 2-9/16″ h9
Hexagonal bars from 17 to 55 from 11/16″ to 2-3/16″ h11
Octagon bars from 12 to 55 from 1/2″ to 2-3/16″ h11

PEELED/REELED +SH

Section Dimension (mm) Dimension (inches) Tolerances
Round bars from 19 to 150 from 3/4″ to 5-15/16″ h11, h13, k10, k11, k12, k13

GROUND + SL

Section Dimension (mm) Dimension (inches) Tolerances
Round bars from 6 to 110 from 1/4″ to 4-5/16″ h6, h7, h8, h9, f7, f8, f9

POLISHED (Smoothened) +PL

Section Dimension (mm) Dimension (inches) Tolerances
Round bars from 6 to 110 from 1/4″ to 4-5/16″ h6, h7, h8, h9

CHAMFERING

Section Dimension (mm) Dimension (inches) Degree
Square bars from 6 to 60 from 1/4″ to 2-3/8″ 30⁰, 45⁰
Round bars from 6 to 60 from 1/4″ to 2-3/8″ 30⁰, 45⁰, 60⁰
Hexagonal bars from 17 to 55 from 11/16″ to 2-3/16″ 30⁰, 45⁰
Octagon bars from 12 to 55 from 1/2” to 2-3/16″ 30⁰, 45⁰

Dimension Tolerances For Bright Bar classes – Rounds

ISO f – Tolerances

  f6 f7 f8  f9 
Diameter (mm) Upper / Lower Upper / Lower  Upper Lower   Upper Lower 
Over 6 to 10 -0.013 / -0.022 -0.013 / -0.028 -0.013 -0.035 -0.013  -0.049
Over 10 to 18 -0.016 / -0.027 -0.016 / -0.034 -0.016  -0.043 -0.016  -0.059
Over 18 to 30 -0.020 / -0.033 -0.020 / -0.041 -0.02  -0.053 -0.020  -0.072
Over 30 to 50 -0.025 / -0.041 -0.025 / -0.050 -0.025 -0.064 -0.025  -0.087
Over 50 to 80 -0.030 / -0.049 -0.030 / -0.060 -0.03  -0.076 -0.03  -0.104
Over 80 to 120 -0.036 / -0.058 -0.036 / -0.071 -0.036  -0.090 -0.036  -0.123
Over 120 to 180 -0.043 / -0.068 -0.043 / -0.083 -0.043  -0.106 -0.043  -0.143

ISO h – Tolerances

Diameter (mm) h6 h7 h8 h9 h10 h11
6 < 10 -0.009/+0 -0.015/+0 -0.022/+0 -0.036/+0 -0.058/+0 -0.090/+0
10 < 18 -0.011/+0 -0.018/+0 -0.027/+0 -0.043/+0 -0.070/+0 -0.110/+0
18 < 30 -0.013/+0 -0.021/+0 -0.033/+0 -0.052/+0 -0.084/+0 -0.130/+0
30 < 50 -0.016/+0 -0.025/+0 -0.039/+0 -0.062/+0 -0.100/+0 -0.160/+0
50 < 80 -0.019/+0 -0.030/+0 -0.046/+0 -0.072/+0 -0.120/+0 -0.190/+0
80 < 120 -0.022/+0 -0.035/+0 -0.054/+0 -0.087/+0 -0.140/+0 -0.220/+0
120 < 180 -0.025/+0 -0.040/+0 -0.063/+0 -0.100/+0 -0.160/+0 -0.250/+0

ISO k – Tolerances

Diameter (mm) k6 k7 k8 k9 k10 k11
6 < 10 +0.010/+0.001 +0.016/+0.001 +0.022/-0 +0.036/-0 +0.058/-0 +0.090/-0
10 < 18 +0.012/+0.001 +0.019/+0.001 +0.027/-0 +0.043/-0 +0.070/-0 +0.110/-0
18 < 30 +0.015/+0.002 +0.023/+0.002 +0.033/-0 +0.052/-0 +0.084/-0 +0.130/-0
30 < 50 +0.018/+0.002 +0.027/+0.002 +0.039/-0 +0.062/-0 +0.100/-0 +0.160/-0
50 < 80 +0.021/+0.002 +0.032/+0.002 +0.046/-0 +0.072/-0 +0.120/-0 +0.190/-0
80 < 120 +0.025/+0.003 +0.038/+0.003 +0.054/-0 +0.087/-0 +0.140/-0 +0.220/-0
120 < 180 +0.028/+0.003 +0.043/+0.003 +0.063/-0 +0.100/-0 +0.160/-0 +0.250/-0

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