Whatever the tolerance
Parkside Steel are pleased to offer a range of precision ground bar from stock however if we don’t stock what you are after contact one of our sales teams and see if we can help source what you are looking for.
Below we give a useful extract from BSEN 10278 concerning the tolerances on Bright Steels. Generally a drawn round bar will be to h10 or h9 tolerance; tighter tolerances will normally be available through Centreless Grinding. We are pleased to offer this as an additional service to our customers, and can offer bars ground to any of the tolerances below as well as to any bespoke requirements you may have.
Additionally, we also carry in our Tool Steels range Silver Steel and Ground Flat Stock (GFS), both of which are precision ground products.
BSEN 10278: 1999 - Dimensions and Tolerances of Bright Steel Products
Tolerance on Drawn Rounds, Squares & Hexagons
|Nominal Dimension||Tolerance Class to ISO 268-2|
|>1 to <3||0.006||0.010||0.014||0.025||0.040||0.060||0.100|
|>3 to <6||0.008||0.012||0.018||0.030||0.048||0.075||0.120|
|>6 to <10||0.009||0.015||0.022||0.036||0.058||0.090||0.150|
|>10 to <18||0.011||0.018||0.027||0.043||0.070||0.110||0.180|
|>18 to <30||0.013||0.021||0.033||0.052||0.084||0.130||0.210|
|>30 to <50||0.016||0.025||0.039||0.062||0.100||0.160||0.250|
|>50 to <80||0.019||0.030||0.046||0.074||0.120||0.190||0.300|
|>80 to <120||0.022||0.035||0.054||0.087||0.140||0.220||0.350|
|>120 to <180||0.025||0.040||0.063||0.100||0.160||0.250||0.400|
|>180 to <200||0.029||0.046||0.072||0.115||0.185||0.290||0.460|
- All Values are +0/-n
- Standard production Drawn Rounds are h10
- Standard production Drawn Hexagons <=80mm is h11, >80 is h12
- Drawn roundbars in Quenched & Tempered condition are h11
Tolerance on Drawn Flats
|Width||Deviation||ISO 286-2 Class|
|Thickness||Deviation||ISO 286-2 Class|