Lamineries Matthey
A unit of NOTZ METAL SA
Montagu 38
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CH-2520 LA NEUVEVILLE

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Precision cold rolled strip and foil

Dimensional tolerances

Precision cold-rolling technology is a core competence of Lamineries MATTHEY and our guaranteed dimensional tolerance limits are often tighter than stipulated in the respective European standards.

    Definitions

    Camber, edgewise curvature

    The guaranteed camber is usually indicated in mm/m and is dependent on the thickness and width of the strips. Other guaranteed cambers can be calculated for other gauge lengthes (see edgewise curvature of non-ferrous strips or edgewise curvature of steels and maraging steels).

    Flatness

    Evenness

    Dimensional tolerances of non-ferrous strips

    Width

    Standard tolerances for slit edge strips of Lamineries MATTHEY are + 0.2, -0 (or ± 0.1mm on request) for all widths of < 125 mm and thicknesses of < 1.00 mm. Tighter tolerances are possible on request.

    Camber, edgewise curvature

    For standard tolerances, the following requirements are met (reference length 1000 mm). High precision tolerances are possible on request.

    Width [mm]
    Camber, edgwise curvature, d [mm/m]
      
    LMSA standard
    LMSA precision
    > 0.5 mm> 0.5 mm 0.5 mm> 0.5 mm
    3612-6-
    61081045
    10204623
    202502311.5

    Other guaranteed cambers can be calculated for other gauge lengthes using the following equation:

         d  = guaranteed camber, given in the table for a gauge, l0, of 1m.
         d2 = calculated edgewise curvature in mm for a gauge, l2.

         d2 [mm/m] =  d [mm]  x (l2 [mm] / 1000)2

     

    Thickness

    The standard tolerances of Lamineries MATTHEY correspond with the tightest tolerances (precision) prescribed in European standards. The precision and extremely tight tolerances (on request) allow the production of premium quality parts. The dimensional tolerances listed in the table below refer, among others, to all copper, aluminium and nickel alloys, except for  NiCr20, NiMo16Cr15W, NiMo28.

    Width (mm)
    EN Standards
    Lamineries Matthey SA
    <10140 precision10258 precisionLMSA standardLMSA precisionLMSA extrem
    0.025----± 0.001
    0.0250.050--± 0.003± 0.002± 0.0015
    0.0500.065-± 0.003± 0.003± 0.0025± 0.002
    0.0650.100-± 0.004± 0.004± 0.0035± 0.003
    0.1000.125± 0.005± 0.006± 0.005± 0.004± 0.003
    0.1250.150± 0.005± 0.006± 0.005± 0.005± 0.004
    0.1500.250± 0.010± 0.008± 0.008± 0.006± 0.004
    0.2500.300± 0.010± 0.009± 0.009± 0.007± 0.005
    0.3000.400± 0.010± 0.010± 0.010± 0.007± 0.005
    0.4000.500± 0.015± 0.012± 0.012± 0.008± 0.006
    0.5000.600± 0.015± 0.014± 0.014± 0.010± 0.007
    0.6000.800± 0.015± 0.015± 0.015± 0.010± 0.007
    0.8001.000± 0.015± 0.018± 0.018± 0.012± 0.009
    1.0001.200± 0.020± 0.020± 0.020± 0.015± 0.012
    1.2001.250± 0.020± 0.020± 0.020± 0.015± 0.012
    1.2501.500± 0.020± 0.020± 0.020± 0.015± 0.014


    Dimensional tolerances of unalloyed-, stainless- and maraging steels

    Width

    Standard tolerances for slit edge strips of Lamineries MATTHEY are + 0.2, -0 (or ± 0.1mm on request) for all widths of < 125 mm and thicknesses of < 1.00 mm. Tighter tolerances are possible on request.

    Camber, edgwise curvature

    For standard tolerances, the following requirements are met (reference length 1000 mm). High precision tolerances are possible on request.

    Width [mm]
    Camber, edgwise curvature,  [mm/m]
      
    LMSA standard
    LMSA extrem
    >0.5 mm> 0.5 mm 0.5 mm> 0.5 mm
    3612-6-
    61081045
    10204623
    202502311.5

    Other guaranteed cambers can be calculated for other gauge lengthes using the following equation:

         d  = guaranteed camber, given in the table for a gauge, l0, of 1m.
         d2 = calculated edgewise curvature in mm for a gauge, l2.

         d2 [mm/m] =  d [mm]  x (l2 [mm] / 1000)2

    Thickness

    The standard tolerances of Lamineries MATTHEY correspond with the tightest tolerances (precision) prescribed in the respective European standards. The precision and extremely tight tolerances (on request) allow the production of parts of premium quality. The dimensional tolerances listed in the table below refer, among others, to all unalloyed steels, stainless steels, maraging steels and Phynox, as well as certain special products.

    Thickness (mm)
    EN Standards
    Lamineries Matthey SA
    <10140 precision10258 precisionLMSA standardLMSA precision±LMSA extrem
    0.025----± 0.001
    0.0250.050--± 0.003± 0.002± 0.0015
    0.0500.065-± 0.003± 0.004± 0.003± 0.002
    0.0650.100-± 0.004± 0.006± 0.004± 0.003
    0.1000.125± 0.005± 0.006± 0.008± 0.006± 0.003
    0.1250.150± 0.005± 0.006± 0.008± 0.006± 0.004
    0.1500.250± 0.010± 0.008± 0.010± 0.008± 0.004
    0.2500.300± 0.010± 0.009± 0.012± 0.008± 0.005
    0.3000.400± 0.010± 0.010± 0.012± 0.009± 0.005
    0.4000.500± 0.015± 0.012± 0.015± 0.010± 0.006
    0.5000.600± 0.015± 0.014± 0.020± 0.012± 0.007
    0.6000.800± 0.015± 0.015± 0.020± 0.014± 0.007
    0.8001.000± 0.015± 0.018± 0.025± 0.015± 0.009
    1.0001.200± 0.020± 0.020± 0.025± 0.018± 0.012
    1.2001.250± 0.020± 0.020± 0.030± 0.020± 0.012
    1.2501.500± 0.020± 0.020± 0.035± 0.025± 0.014


    Dimensional tolerances (rods and wires)

    Diameter

    Usual tolerances
    Special tolerances
    3.0 mmh8+ 0 / - 14 µm
    On request, rods and wires can be delivered with lower tolerances (h6, h5, h7) by means of additional drawing or grinding processes.
    > 3.0 et 6.0mmh8+ 0 / - 18 µm
    > 10.0 et 10.5mmh8+ 0 / - 22 µm
    > 10.5 et 18.0mmh9+ 0 / - 43 µm
    > 18.0 et 30.0mmh9+ 0 / - 52 µm

    The heat-treated, non-ground bars are available with tolerances h9 for diameters ≤ 10.5 mm.

    ISO Tolerances for rods and wires: click here.

    Out-of-roundness

    Maximum equals half of the tolerance value of the diameter. Rods and wires with tigther tolerances are available on request.

    Length

    The standard length of the rods is 3 m.

    Usual values
    Ø < 6.5 mm+/- 3.3mm
    Ø 6.5 mm+/- 6.5mm

    Chamfer

    Standard rods of diameter larger than 2mm are delivered pointed and chamfered.

    Straightness

    Straightness of the delivered rods complies with standard EN 12164.

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