Minimum hook, bend and radius allowances for steel bars that comply with SANS 920: 2005
High Yield Stress Steel Bars
Bends that form end anchorages - Shape code 42
Semi circular hooks - Shape Code 72
Cutting length of bar equals L + n
Cutting length of bar equals L + h
Nominal size of bar
d
10
12
16
20
25
32
40
Hook allowance
h
180
210
240
280
340
400
480
Bend allowance
n
130
130
150
170
190
220
250
Radius
r
30
36
48
60
75
96
120
Minimum hook, bend and radius allowances for steel bars that comply with SANS 920: 2005
Hot-Rolled Mild Steel Bars
Bends that form end anchorages - Shape code 42
Semi circular hooks - Shape Code 72
Cutting length of bar equals L + n
Cutting length of bar equals L + h
Nominal size of bar
d
8
10
12
16
20
25
32
40
Hook allowance
h
100
140
170
190
210
240
290
360
Bend allowance
n
100
100
100
120
130
150
180
200
Radius
r
16
20
24
32
40
50
64
80


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