5mm x 75mm x 500mm Metric Gauge Plate AISI O1 (W1.2510)

5mm x 75mm x 500mm Metric Gauge Plate AISI O1 (W1.2510)

£14.74  £22.43 (Exc. 20% VAT)  

Part Number:  GPM5x75x500
Length:  500mm
Thickness:  5mm
Width:  75mm
Material:  AISI O1 (W1.2510)


In stock, immediate despatch  

In stock, immediate despatch

Thickness Width Length
5mm 75mm 500mm


About our Gauge Plate / Ground Flat Stock
Gauge plate/ground flat stock is a tool steel of high quality (grade 01) supplied in an annealed state. The material is ground on its thickness and width to a fine tolerance. While the material in its supplied state is soft enough to machine it has the ability to be wear resistant and reach very high levels of hardness (maximum of 62 degrees Rockwell) with hardly any movement. This allows the material to be used in a wide diversity of engineering applications.


For Technical Data please click the specifications tab above.


Material Spec
AISI O1 (W1.2510) ground flat stock and gauge plate in both metric and imperial sizes. The material is a medium alloyed oil hardening tool steel. It is supplied in a de-carb free annealed condition with precise tolerances to reduce machining time. The material is supplied to the following average chemical analysis:-

  • C – 0.9 - 1.00%
  • Si – 0.4%
  • Mn – 1.00 - 1.20%
  • Cr – 0.5 - 0.7%
  • W – 0.5 - 0.7%
  • Va – 0.05 - 0.25%
  • Hardness – 229 Brinell Maximum

Our main focus is on quality of all our products we supply, which is why we will only use steel supplied by reputable mills within the European Union. All of our products are fully traceable and can be supplied with cast certificates from the supplying mill. In addition to steel quality, we also focus on tolerance quality. Throughout the manufacturing process our material is 100% inspected ensuring that we only supply items that meet our high standards. Our standard tolerances are:-


  • Thickness: -0.001" /+0.001"
  • Width: -0/+0.005"
  • Length: Nominal
  • Flatness: 0.005" per 18"
  • Stocked from 1/32" thick up to 2" as standard
  • Stocked from 3/8" wide up to 12" as standard

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