Fields of application
Round steel bars are used on a wide scale in the industry and everyday life, due to its' specific characteristics and utility. Using them as semifabricates results in numerous situation in a shortening of production times and costs (for examle in the production of screws).
Aspects
The bars must be straight without bends of the axis; the deviation from rectilinearity should not surpass 0,25-0,4 % of the bar length.
The bars must be cut without the bending of the endings and without the strain of the section. The burrs resulting from the cutting must not surpass 8 mm.
A deviation from the round form of maximum 0,3-3 mm is allowed.
Delivery conditions
Round bars are delivered in rolled state, in bars or bundles between 300-3000 kg, with lengths of 3-6m.
Mechanical properties
|
SE EN 10060 |
State |
Thickness |
Rm N/mm2 |
Rp 0,2 |
A5 (%) |
Weldability |
|
S235JR |
<16 |
360-510 |
235 |
26 |
excellent |
|
|
16-40 |
360-510 |
225 |
26 |
excellent |
||
|
40-63 |
360-510 |
215 |
25 |
excellent |
||
|
63-80 |
360-510 |
215 |
24 |
excellent |
||
|
80-100 |
360-510 |
215 |
24 |
excellent |
||
|
100-125 |
350-500 |
195 |
22 |
excellent |
Chemical composition
|
Standard |
State |
C % |
Mn % |
P % |
S % |
N % |
Cu % |
CEV % |
|
SE EN 10060 |
S235JR |
max 20 |
max 1.4 |
max 0.04 |
max 0.04 |
max 0.012 |
max 0.55 |
max 0.38 |