Technical Data

For your assistance we have provided the information below regarding the specifications of the metals and alloys we use in our manufacturing processes. Please contact us for individual requirements as these will vary dependant on your product and chosen material.

Metal specifications

To open the document below please click on the icon or the link next to it. Each document will open in a new browser window as a PDF file. You may need to install Adobe Reader if so you can download the PDF reader here.

Alloy Steels Nickel Cobalt Alloys pdfStainless Alloy steels, Nickel and Cobalt alloys - Ferrous metals

 

Carbon and low alloy steels pdfCarbon and Low Alloy Steels - Ferrous metals

 

Internal Link to open the Aluminium, Copper and Zinc pdfAluminium, Copper and Zinc - Non-ferrous metals

  

Size and Weight

We are able to supply products in the UK up to half a cubic metre, and to a weight of 20kg for ferrous metals and 10kg for non-ferrous metals.  Our partner foundry in China is able to produce parts up to one cubic metre, and up to 120kg for ferrous and 40kg for non-ferrous metals.

Tolerances

Lestercast General Casting Tolerance (in accordance with VDG P690)  

Click here to view the current Investment Casting Tolerance Table - VDG P690

Nominal Value Range (mm)

0  -  6

±0.15

6  -  10

±0.18

10  -  18

±0.22

18  -  30

±0.26

30  -  50

±0.40

50  -  80

±0.45

80 - 120

±0.55

120 - 180

±0.80

180 - 250

±1.20

250 - 315

±1.30 

Special or selected dimensions can be reviewed independently, but the feasibility of such requests will need to be discussed with Lestercast at time of quotation.

Prototype tolerance

Castings will be supplied within general casting tolerance of:

± 0.25 mm per 25 mm and an angular tolerance of ± 30’

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