Strip and sheets

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  • Products Portfolio

    B Mason manufactures copper, brass, nickel silver, bronze and high performance CuNiSn strip alloys.

    Copper based alloys are cast in our foundry and rolled into coil form with a variety of thicknesses and widths. A wide range of semi-finished metal products are produced with ‘post mill’ operations including slitting, traverse winding, multi-coiling and cutting to length.

    High-performance niche alloys and small batches are our main areas of expertise.

    The below list is not exhaustive. We also produce additional special alloys and special tempers.

    Please contact us for enquiries.

    High Performance CuNiSn Alloys

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    AEM400 AEM400 CuNi9Sn6* - CuNi9Sn6** - C72700 -
    GM96 GM96 CuNi9Sn6* - CuNi9Sn6** - C72700 -
    L49 L49 CuNi9Sn2 2.0875 CuNi9Sn2 CW351H C72500 -
    * Material not standardised in DIN ** Material not standardised in EN

    Free Machining Nickel Silver

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    LN13 - - - CuNi12Zn25Pb1 CW404J C79200 C7920
    N41 - - - CuNi7Zn38Pb1** - - -
    ** Material not standardised in EN

    Phosphor Bronze

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    B14 B14 CuSn4 2.1016 CuSn4 CW450K C51100 C5111
    B15 B15 CuSn5* - CuSn5 CW451K C51000 C5102
    B16 B16 CuSn6 2.1020 CuSn6 CW452K C51900 C5191
    B18 B18 CuSn8 2.1020 CuSn8 CW453K C52100 C5212
    B20-Supralloy B20 CuSn10 - CuSn10 - C52400 C5240
    * Material not standardised in DIN

    Nickel Silver

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    N12 N12 CuNi12Zn24 2.0730 CuNi12Zn24 CW403J C75700 -
    N17 N17 CuNi18Zn27 2.0742 CuNi18Zn27 CW4103J C77000 C7701
    N18 N18 CuNi18Zn20 2.0740 CuNi18Zn20 CW409J C76400 -
    NA4 - CuNi18Zn10* 2.0790 CuNi18Zn10** - C73500 C7351
    NB3 NB3 CuNi10Zn27* - CuNi10Zn27 CW401J C74500 C7451
    * Material not standardised in DIN ** Material not standardised in EN

    Copper

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No JIS-No.
    C101 K32 E-Cu58 2.0065 Cu-ETP CW004A C11000 C1100
    C103 K12 SE-Cu57 2.0070 Cu-HCP CW021A C10300 -
    C103 K14 SE-Cu58 2.0070 Cu-PHC CW020A C10300 -
    C106 K19 SF-Cu 2.0090 Cu-DHP CW024A C12200 C1220

    High Performance Copper Alloys

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    K65 K65 CuFe2P 2.1310 CuFe2P CW107C C19400 -
    K80 K80 CuFe0,1P* - CuFe0,1P** - C19210 -
    L10 L10 CuNi10Fe1Mn 2.0872 CuNi10Fe1Mn CW352H C70600 C7060
    * Material not standardised in DIN ** Material not standardised in EN

    Brass

    Mason Wieland DIN EN ASTM JIS
    Designation Designation Material Code No. Material Code No. UNS-No. JIS-No.
    M10 M10 CuZn10 2.0230 CuZn10 CW501L C22000 C2200
    M15 M15 CuZn15 2.0240 CuZn15 CW5021L C23000 C2300
    M30 M30 CuZn30 2.0265 CuZn30 CW505L C26000 C2600
    M36 M36 CuZn36 2.0335 CuZn36 CW507L C27000 C2700
    M37 M37 CuZn37 2.0321 CuZn37 CW508L C27200 C2720
    M38 M38 CuZn37 2.0321 CuZn37 CW508L C27200 C2720

    The Wieland Group of Companies offers a wide variety of copper based alloys and solutions.

    Please find more information here.

  • AEM400 - High Performance Alloy as an Alternative to CuBe

    With its combination of high tensile strength, good conductivity and excellent formability, AEM400 is the alloy of choice when considering alternatives to copper beryllium.

    Due to environmental and safety concerns associated with CuBe, alternative Be-free alloys are desirable. As a high-performance CuNiSn alloy, AEM400 offers this alternative. Using the AEM400 alloy alleviates concerns associated with CuBe and in turn offers potential for streamlined waste processing, improved recyclability and a more favourable scrap value.

    As a high-performance alloy, AEM400 can be supplied in either a rolled (TD) or mill age hardened (TM) condition. The final properties of the alloy can be tailored to individual customers’ requirements. For material in the rolled (TD) condition, appropriate age hardening parameters can be advised to achieve the required post-forming properties. Further details regarding AEM400 are available on request.

    Click here for the AEM400 data sheet.

  • Applications

    B Mason offers an extensive portfolio of copper and copper alloys in strip or sheet form, from which our customers manufacture components and products used in various sectors such as the automotive industry, consumable electronics, communication and data technology, construction, electrical engineering, architecture and metal goods. Typical applications include the following:

    High Performance CuNiSn Alloys

    Spectacle frames and components, switches & relays, micro motors, smart phone connectors, other high strength applications, etc.

    Free Machining Nickel Silver

    Keys for automotive and high security industries, musical instruments, spectacle frames, etc.

    Phosphor Bronze

    Consumer electronics, contact springs, stamped parts, connectors, relay springs, etc.

    Nickel Silver

    Deep drawn parts, tableware & cutlery, connectors, contact springs, etc.

    Copper

    General electronic applications, stamped parts, connectors, cable strip, heat sinks, etc.

    Brass

    Jewellery and metal goods, deep drawn parts, components for the electronic industry, musical instruments, connectors, etc.

    To view our alloy list and data sheets, please click here.

  • Delivery Formats
    Strip in coil form Strip in coil form

    Strip in coil form

    Coils are the simplest and therefore most common delivery format of strip material. Coils are typically packaged horizontally on square or round pallets whose size is matched to the outer diameter of the coils.

    For a given inner diameter, the outer diameter of the coil depends on the alloy, width and weight. These parameters can be specified as part of any order in coil-form.

    You can determine the most important parameters of the coils yourself, such as the outer diameter, the weight of the coils, the strip length or even the specific coil weight (coil weight per mm strip width) using our coil calculator.

    Traverse-wound strip

    Traverse-wound strip consists of coils which are welded together and then wound onto a drum or core. Depending on the strip width, considerably longer strip lengths can be achieved than with individual coils. The excellent quality of the welds allows the operator to continuously run the strip through the stamping tools without causing disruption, thus reducing time. Depending on the design, the stamped parts located at the weld seam may not be fully suitable for the intended function, therefore the welds can be marked in colour, if required.

    We draw a distinction between drums with side flanges and those without. The flangeless drums are least expensive, since the drum centres are made from cardboard. This is particularly environmentally friendly, since they can be returned together with the stamping scrap.

    Multi-coil strip

    A Multi-coil is created when coils are welded together at the strip ends (alternate welding of strips’ ends at inner diameter and outer diameter) and stacked on pallets.

    The uncoiling of a Multi-coil is done from the ring inside to the outside. It is necessary to position a so called uncoil assistance in the center of the annular stack, which prevents, together with the inserted cardboard between the rings, that the turns fall into the center of the stack.

    Cut-to-length strip

    Strip can be supplied as cut lengths, with our bespoke processing able to produce a range of lengths. Cut lengths are packed and delivered in suitably sized boxes or on boards.