Stainless Steel 304
from P&P Non Ferrous Ltd



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Tolerances


Tolerances on diameter, for general purposes.

 

Round Bar:

Between 10mm and 15mm= +/- 0.4mm

Between 16mm and 25mm= +/- 0.5mm

Between 26mm and 35mm= +/- 0.6mm

Between 36mm and 50mm= +/- 0.8mm

Between 52mm and 80mm= +/- 1.0mm

Between 85mm and 100mm= +/- 1.3mm

Between 105mm and 120mm= +/- 1.5mm

Between 125mm and 160mm= +/- 2.0mm

 

 

Tolerances on diameter, for precision purposes.

 

Round bar:

Between 10mm and 12mm= +/- 0.15mm

Between 13mm and 22mm= +/- 0.20mm

Between 24mm and 30mm= +/- 0.25mm

Between 32mm and 40mm= +/- 0.30mm

Between 42mm and 52mm= +/- 0.40mm

Between 55mm and 75mm= +/- 0.50mm

 

Tolerances on flat bar:

 

Width:

Between 10mm and 40mm= +/- 0.75mm

Over 40mm up to 80mm= +/- 1.0mm

Over 80mm up to 100mm= +/- 1.5mm

Over 100mm up to 120mm= +/- 2mm

Over 120mm up to 150mm= +/- 2.5mm

 

Thickness:

Up to 20mm= +/- 0.5mm

Over 20mm up to 40mm= +/- 1.0mm

Over 40mm up to 80mm= +/- 1.5mm

 

 

Straightness:

Below 1000mm2= a tolerance in the plane of below 0.4% of measuring length.

1000mm2 and above= a tolerance in the plane below 0.25% of measuring length.

Out-of-section:

Between 10mm and 25mm= 0.5mm

Over 25mm up to 40mm= 1mm

Over 40mm up to 80mm= 1.5mm

 

 

Tolerances on hexagons:

 

Width across flats:

 Between 13mm and 15mm= +/- 0.4mm

Between 16mm and 23.5mm= +/- 0.5mm

Between 25.5mm and 33.5mm= +/- 0.6mm

Between 35.5mm and 47.5mm= +/- 0.8mm

Between 52mm and 78mm= +/- 1.0mm

Between 83mm and 98mm= +/- 1.3mm

103mm= +/- 1.5mm

 

 

Corner Radius:

Below 20.0mm= up to a 1.5mm radius.

Over 20.0mm to 28.5mm= up to 2.0mm radius.

Over 28.5mm to 48.0mm= up to 2.5mm radius

Over 48.0mm to 83.0mm = up to 3mm radius

Over 83.0mm to 103.0mm= up to 3.5mm radius

 

Straightness:

Below 39.5mm= not fixed tolerance in the plane.

 

Between 39.5mm and 83.0mm= q up to 0.004 x L tolerance in the plane.

 

Between 83.0mm and 103.0mm= q up to 0.0025 x L tolerance in the plane.



Click here to see the full range of Stainless Steel 304 stock sizes