Tolerances

Round Bar Tolerances

Peeled Bar Cold Drawn - Peeled & Reeled Bar Bright Ground Bar
Metric
mm
Imp
inch
-0 / plus tol. +0 / minus tol. +0 / minus tol.
ISO k13 ISO k12 ISO h11 ISO h10 ISO h9 ISO h8 ISO h7
ISO h6
mm in mm in mm in mm in mm in mm in mm in mm in
1 < 3 1/32 < 1/8
-
-
-
-
.060
.0024
.040
.0016
.025
.001
.014
.0006
.010
.0004
.006
.00025
3 < 6 1/8 < 15/64 - - - - .075 .0030 .048 .0019 .03 .0012 .018 .0007 .012 .0005 .008 .0003
6 < 10 15/64 25/64 - - .15 .0059 .090 .0035 .058 .0023 .036 .0014 .022 .0009 .015 .0006 .009 .0004
10 < 18 25/64 < 45/64 - - .18 .0071 .110 .0043 .070 .0027 .043 .0016 .027 .0010 .018 .0007 .011 .0004
18 < 30 45/64 < 1-3/16 .33 .013 .21 .0083 .130 .0051 .084 .0033 .052 .0020 .033 .0012 .021 .0008 .013 .0005
30 < 50 1-3/16 < 2 .39 .0154 .25 .0098 .160 .0063 .100 .0039 .062 .0025 .039 .0016 .025 .001 .016 .0006
50 < 80 2 < 3-1/8 .46 .0182 .30 .0118 .190 .0075 .120 .0047 .074 .003 .046 .0018 .030 .0012 .019 .0007
80 < 120 3-1/8 < 4-3/4 .54 .0215 .35 .0138 .220 .0087 .140 .0055 .087 .0035 .054 .0022 .35 .0014 .022 .0009
120 < 180 4-3/4 < 7-3/32 .63 .0248 .40 .0157 .250 .0098 .160 .0063 .100 .0039 .063 .0025 - - - -
180 < 250 7-1/4 < 10 .72 .0284 .48 .0189 .290 .0114 .185 .0073 .115 .0045 .072 .0028 - - - -
250 < 275 10 < 10-7/8 .81 .0319 .52 .0205 .320 .0126 .210 .0083 .130 .0051 .081 .0031 - - - -

 

Round Bar Tolerances (DIN 1013)

DIN 1013
Diameter
Tolerance
mm
mm
8.0 - 15.0
±0.40
16.0 - 25.0
±0.50
26.0 - 35.0
±0.60
36.0 - 50.0
±0.80
51.0 - 80.0
±1.00
81.0 - 100.0
±1.30
101.0 - 120.0
±1.50
121.0 - 160.0
±2.00
161.0 - 200.0
±2.50

 

Round Bar Tolerances (ASTM A484/A 484M)

ASTM A484/A 484M
Diameter
Tolerance
> mm
mm
8.0 - 11.0
±0.15

11.0 - 15.5

±0.18
15.5 - 22.0
±0.20
22.0 - 25.0
±0.23
25.0 - 28.0
±0.25
28.0 - 31.5
±0.28
31.5 - 34.5
±0.30
34.5 - 38.0
±0.35
38.0 - 50.0
+0.40 / -0
50.0 - 63.0 +0.80 / -0
63.0 - 90.0 +1.20 / -0
90.0 - 115.0 +1.60 / -0
115 - 140 +2.00 / -0
140 - 165 +3.00 / -0
165 - 200 +4.00 / -0
200 - 300 +4.80 / -0
300 - 400 +5.50 / -0
400 - 625 +6.50 / -0