Our product range

From strip for terminals and connectors through to stamped parts, our wide range of differing materials and surface finishes is appreciated all over the world and used by the main connector manufacturers in Europe, America and Asia. We guarantee always to provide you with user-oriented solutions tailored to your specific requirements. Building on our main cornerstones of function, appearance and reliability, we have proven ourselves and achieved absolute customer satisfaction year after year via exceptional conductivity, excellent corrosion resistance and good workability.

 

Chief advantages of KMD high-performance alloys:

 

  • High electrical conductivity
  • Good relaxation resistance – even at operating temperatures reaching 200°C
  • High mechanical strength combined with good formability
  • Good tooling life
  • Good recyclability of stamping scraps, a valuable contribution to protecting the environment and reducing waste
  • Materials with tensile strength up to 900 MPa
     

Download

Our technical handout can be found here.

Plain Strip


Use our plain strip as the basis for electrical and electronic applications in the automotive industry, as well as for communications and power supply.

STOL® high-performance alloys offer an unparalleled combination of electrical conductivity with strength and formability. The corson alloys STOL® 76, STOL® 76M and STOL® 94 also have particularly high resistance to stress relaxation.

Strip dimensions

Tolerances

Strip Thickness

We offer strip in two differing classes of thickness tolerance, up to a maximum width of 330 mm.

 

Strip Thickness (mm)StandardPrecision
0.08 – 0.20± 0.005± 0.004
0.21 – 0.30± 0.007± 0.005
0.31 – 0.40± 0.015± 0.006
0.41 – 0.50± 0.015± 0.008
0.51 – 0.60± 0.017± 0.010
0.61 – 0.70± 0.020± 0.010
0.71 – 0.85± 0.022± 0.012
0.86 – 1.20± 0.025± 0.015

Strip Width

We offer standard and precision tolerances on strip width too.

 

Strip Thickness (mm)10 – 5051 – 100101 – 200201 – 330
Standard
0.08 – 1.00+ 0.20+ 0.30+ 0.40+ 0.60
1.01 – 1.20+ 0.30+ 0.40+ 0.50+ 1.00
Precision
0.08 – 1.00+ 0.10+ 0.20+ 0.30+ 0.40
1.01 – 1.20+ 0.20+ 0.20+ 0.40+ 0.60

Alloys

For many years, we have produced differing high-performance semi-finished products for our customers in highly diverse industries, such as automotive, communications and electronics. Following our guiding principles, top quality has always remained our highest priority. This has helped us grow into a major global supplier of high-quality precision strip.

STOL® High Performance Alloys

Medium to high electrical conductivity, high strength, good formability and good to excellent resistance to stress relaxation.

Copper

Best electrical conductivity coupled with medium to low strength.

Brass

Most economical material for connectors, low electrical conductivity, medium strength and good workability.

Phosphor Bronze

Medium electrical conductivity, with good spring properties, but more expensive metal than copper and brass.

  • Segment A
    Basic applications
    = Low conductivity, medium to exceptional strength

  • Segment B
    Electronics applications
    = Medium conductivity, Medium to high strength

  • Segment C
    Automotive applications
    = Medium conductivity, Medium strength

  • Segment D
    Electric vehicles and high-voltage applications
    = Low to medium strength, high conductivity

Brass

DIN-ENCENASTMJISBSConductivity **
CuZn5CuZn5CW500LC21000C 2100CZ125MS/m ≥ 33IACS(%) ≥ 56Details & Downloads

CuZn5

    Material designations

  • DIN-EN: CuZn5
  • CEN: CW500L
  • ASTM: C21000
  • JIS: C 2100
  • BS: CZ125

    Conductivity **

  • MS/m ≥ 33
  • IACS(%) ≥ 56

Downloads

Datasheets

CuZn10CuZn10CW501LC22000C2200CZ101MS/m ≥ 25IACS(%) ≥ 43Details & Downloads

CuZn10

    Material designations

  • DIN-EN: CuZn10
  • CEN: CW501L
  • ASTM: C22000
  • JIS: C2200
  • BS: CZ101

    Conductivity **

  • MS/m ≥ 25
  • IACS(%) ≥ 43

Downloads

Datasheets

CuZn15CuZn15CW 502 LC23000C2300CZ102MS/m ≥ 20IACS(%) ≥ 34Details & Downloads

CuZn15

    Material designations

  • DIN-EN: CuZn15
  • CEN: CW 502 L
  • ASTM: C23000
  • JIS: C2300
  • BS: CZ102

    Conductivity **

  • MS/m ≥ 20
  • IACS(%) ≥ 34

Downloads

Datasheets

CuZn30CuZn30CW505LC26000C2600CZ106MS/m ≥ 16IACS(%) ≥ 28Details & Downloads

CuZn30

    Material designations

  • DIN-EN: CuZn30
  • CEN: CW505L
  • ASTM: C26000
  • JIS: C2600
  • BS: CZ106

    Conductivity **

  • MS/m ≥ 16
  • IACS(%) ≥ 28

Downloads

Datasheets

CuZn33CuZn33CW506LC26800C2680-MS/m ≥ 15IACS(%) ≥ 26Details & Downloads

CuZn33

    Material designations

  • DIN-EN: CuZn33
  • CEN: CW506L
  • ASTM: C26800
  • JIS: C2680
  • BS: -

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 26

Downloads

Datasheets

CuZn36CuZn36CW507LC27000C2700CZ108MS/m ≥ 14IACS(%) ≥ 24Details & Downloads

CuZn36

    Material designations

  • DIN-EN: CuZn36
  • CEN: CW507L
  • ASTM: C27000
  • JIS: C2700
  • BS: CZ108

    Conductivity **

  • MS/m ≥ 14
  • IACS(%) ≥ 24

Downloads

Datasheets

CuZn37CuZn37CW508LC27200C2720CZ107MS/m ≥ 14IACS(%) ≥ 24Details & Downloads

CuZn37

    Material designations

  • DIN-EN: CuZn37
  • CEN: CW508L
  • ASTM: C27200
  • JIS: C2720
  • BS: CZ107

    Conductivity **

  • MS/m ≥ 14
  • IACS(%) ≥ 24

Downloads

Datasheets

Bronze

DIN-ENCENASTMJISBSConductivity **
CuSn4CuSn4CW450KC51100C5111PB101MS/m ≥ 12IACS(%) ≥ 21Details & Downloads

CuSn4

    Material designations

  • DIN-EN: CuSn4
  • CEN: CW450K
  • ASTM: C51100
  • JIS: C5111
  • BS: PB101

    Conductivity **

  • MS/m ≥ 12
  • IACS(%) ≥ 21

Downloads

Datasheets

CuSn5CuSn5CW451KC51000C5102PB102MS/m ≥ 10IACS(%) ≥ 17Details & Downloads

CuSn5

    Material designations

  • DIN-EN: CuSn5
  • CEN: CW451K
  • ASTM: C51000
  • JIS: C5102
  • BS: PB102

    Conductivity **

  • MS/m ≥ 10
  • IACS(%) ≥ 17

Downloads

Datasheets

CuSn6CuSn6CW452KC51900C5191PB103MS/m ≥ 8IACS(%) ≥ 13Details & Downloads

CuSn6

    Material designations

  • DIN-EN: CuSn6
  • CEN: CW452K
  • ASTM: C51900
  • JIS: C5191
  • BS: PB103

    Conductivity **

  • MS/m ≥ 8
  • IACS(%) ≥ 13

Downloads

Datasheets

CuSn8CuSn8CW453KC52100C5210PB104MS/m ≥ 6IACS(%) ≥ 11Details & Downloads

CuSn8

    Material designations

  • DIN-EN: CuSn8
  • CEN: CW453K
  • ASTM: C52100
  • JIS: C5210
  • BS: PB104

    Conductivity **

  • MS/m ≥ 6
  • IACS(%) ≥ 11

Downloads

Datasheets

Copper

DIN-ENCENASTMJISBSConductivity **
Cu-ETPCu-ETPCW004AC11000C1100C101MS/m ≥ 58IACS(%) ≥ 100Details & Downloads

Cu-ETP

    Material designations

  • DIN-EN: Cu-ETP
  • CEN: CW004A
  • ASTM: C11000
  • JIS: C1100
  • BS: C101

    Conductivity **

  • MS/m ≥ 58
  • IACS(%) ≥ 100

Downloads

Datasheets

Cu-HCP Cu-HCP (SE-Cu)CW021AC10300--MS/m ≥ 57IACS(%) ≥ 98Details & Downloads

Cu-HCP

    Material designations

  • DIN-EN: Cu-HCP (SE-Cu)
  • CEN: CW021A
  • ASTM: C10300
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 57
  • IACS(%) ≥ 98

Downloads

Datasheets

Cu-PHCCu-PHC (SE-Cu)CW020AC10300C10300-MS/m ≥ 58IACS(%) ≥ 100Details & Downloads

Cu-PHC

    Material designations

  • DIN-EN: Cu-PHC (SE-Cu)
  • CEN: CW020A
  • ASTM: C10300
  • JIS: C10300
  • BS: -

    Conductivity **

  • MS/m ≥ 58
  • IACS(%) ≥ 100

Downloads

Datasheets

Cu-DLPCu-DLPCW023AC12000--MS/m ≥ 55IACS(%) ≥ 95Details & Downloads

Cu-DLP

    Material designations

  • DIN-EN: Cu-DLP
  • CEN: CW023A
  • ASTM: C12000
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 55
  • IACS(%) ≥ 95

Downloads

Datasheets

Cu-DHPCu-DHPCW024AC12200C1220-MS/m ≥ 47IACS(%) ≥ 81Details & Downloads

Cu-DHP

    Material designations

  • DIN-EN: Cu-DHP
  • CEN: CW024A
  • ASTM: C12200
  • JIS: C1220
  • BS: -

    Conductivity **

  • MS/m ≥ 47
  • IACS(%) ≥ 81

Downloads

Datasheets

Cu-OFECu-OFECW009AC10100C1010-MS/m ≥ 58IACS(%) ≥ 101Details & Downloads

Cu-OFE

    Material designations

  • DIN-EN: Cu-OFE
  • CEN: CW009A
  • ASTM: C10100
  • JIS: C1010
  • BS: -

    Conductivity **

  • MS/m ≥ 58
  • IACS(%) ≥ 101

Downloads

Datasheets

High Performance Alloys (HPA)*

DIN-ENCENASTMJISBSConductivity **
STOL®75--C18070--MS/m ≥ 45IACS(%) ≥ 78Details & Downloads

STOL®75

    Material designations

  • DIN-EN: -
  • CEN: -
  • ASTM: C18070
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 45
  • IACS(%) ≥ 78

Downloads

Datasheets

STOL®76--C19010--MS/m ≥ 35IACS(%) ≥ 60Details & Downloads

STOL®76

    Material designations

  • DIN-EN: -
  • CEN: -
  • ASTM: C19010
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 35
  • IACS(%) ≥ 60

Downloads

Datasheets

STOL®76M-CW109CC19005--MS/m ≥ 33IACS(%) ≥ 57Details & Downloads

STOL®76M

    Material designations

  • DIN-EN: -
  • CEN: CW109C
  • ASTM: C19005
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 33
  • IACS(%) ≥ 57

Downloads

Datasheets

STOL®78--C18665--MS/m ≥ 36IACS(%) ≥ 62Details & Downloads

STOL®78

    Material designations

  • DIN-EN: -
  • CEN: -
  • ASTM: C18665
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 36
  • IACS(%) ≥ 62

Downloads

Datasheets

STOL®80-CW177CC14410--MS/m ≥ 44IACS(%) ≥ 76Details & Downloads

STOL®80

    Material designations

  • DIN-EN: -
  • CEN: CW177C
  • ASTM: C14410
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 44
  • IACS(%) ≥ 76

Downloads

Datasheets

STOL®94--C70310--MS/m ≥ 25IACS(%) ≥ 43Details & Downloads

STOL®94

    Material designations

  • DIN-EN: -
  • CEN: -
  • ASTM: C70310
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 25
  • IACS(%) ≥ 43

Downloads

Datasheets

STOL®95-CW106CC18160--MS/m ≥ 50IACS(%) ≥ 86Details & Downloads

STOL®95

    Material designations

  • DIN-EN: -
  • CEN: CW106C
  • ASTM: C18160
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 50
  • IACS(%) ≥ 86

Downloads

Datasheets

C15500-CW106C---MS/m ≥ 50IACS(%) ≥ 86Details & Downloads

C15500

    Material designations

  • DIN-EN: -
  • CEN: CW106C
  • ASTM: -
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 50
  • IACS(%) ≥ 86

Downloads

Datasheets

STOL®194-CW107CC19400--MS/m ≥ 35IACS(%) ≥ 60Details & Downloads

STOL®194

    Material designations

  • DIN-EN: -
  • CEN: CW107C
  • ASTM: C19400
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 35
  • IACS(%) ≥ 60

Downloads

Datasheets

Special alloys

DIN-ENCENASTMJISBSConductivity **
CuNi3SiCuNi3SiC70250--MS/m ≥ 23IACS(%) ≥ 40Details & Downloads

CuNi3Si

    Material designations

  • DIN-EN: CuNi3Si
  • CEN:
  • ASTM: C70250
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 23
  • IACS(%) ≥ 40

Downloads

Datasheets

CuSn3Zn9/CuSn2Zn10CuSn3Zn9/CuSn2Zn10CW454KC42500--MS/m ≥ 15IACS(%) ≥ 25Details & Downloads

CuSn3Zn9/CuSn2Zn10

    Material designations

  • DIN-EN: CuSn3Zn9/CuSn2Zn10
  • CEN: CW454K
  • ASTM: C42500
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 25

Downloads

Datasheets

Hot-Dip Tinning

Cost-effective protection against corrosion and reduced mating / unmating force of contacts – this is what our hot-dip tinned finishes offer you. Furthermore, we can adjust the tinned surface to yield additional specific desirable properties.

Tinned strip

Ever-more exacting reliability requirements mean that electro-mechanical components are increasingly made from pre-tinned strip. Especially in the automotive industry, hot-dip tinning has proven itself time and time again to be the preferred option for corrosion protection and contact surfaces. Special tinning processes have been developed to permit higher operating temperatures, reduce mating / unmating forces, and minimise fretting corrosion.

Tin-Silver coating

Tin-silver coatings typically offer greater temperature stability and hardness than pure tin coatings. Tin-silver coatings on STOL® 76M or STOL® 94 alloys are suitable for applications hotter than 130°C. This is an entirely lead-free solution that significantly reduces whisker formation and allows soldering for up to six months.

KMD Coatings Beyond Tin-Silver

The table below gives an overview of the differing STOL® coating solutions for hot-dip tinned strip and the particular properties of each special tin coating.

Hot-Dip Tinning / Coating Types

STOL® Sn10 – Pure Tin
Standard coating with IMP*
Coating thickness determines advantages

STOL® Sn11 – Thin layer
Reduced mating and unmating forces, less prone to fretting corrosion,
IMP*: Sn = 1 : 1

STOL® Sn13 – Thermal Tin
Lowest mating and unmating forces, wear resistant

STOL® Sn14
More mating cycles possible, due to thicker IMP and pure-tin top layer
IMP*: Sn = 1 : 1

STOL® Sn28M – Tin-Silver
Operating temperatures up to 150°C possible, depending on coating combination


Hot-Dip Tinning

We can supply rolled strips with hot-dip tinned coatings that meet DIN EN 13148.

KMD's hot-dip tinned coatings are compliant with the EU RoHS Directive (Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment. This directive restricts the use (and placing on the market) of hazardous substances in electrical devices and electronic components). The intrinsic process characteristics of hot-dip tinning enable coating with alloys. Hot-dip tinned strip is available up to 330 mm maximum width and between 0.15 and 1.5 mm thickness.

We are able to provide two in-house hot-dip tinning options: Mechanical Wipe Tinning (MWT) and Hot Air Levelled Tinning (HALT).

 

Hot-Dip Tinning to DIN EN 13148 (RoHs compliant)

Thickness:0.20 - 1.50 mm
Width:up to 330 mm
Coatings:pure tin, silver-tin, thermal tin
Coating thickness**:1.0 - 3.0 μm
2.0 - 5.0 μm
4.0 - 10.0 μm
10.0 - 20.0 μm

Electroplating

We manufacture electro-plated products according to DIN EN 14436. Via our external electroplating subcontractors, we are able to work with thicknesses from 0.40 to 2.00 mm in widths of up to 170 mm.

Electroplating to DIN EN 14436 (RoHS compliant)

Thickness:0.2 - 4.00 mm
Width:up to 300 mm
Coatings:Sn on Cu and Sn on Ni
Coating type:fully plated, dull, bright, or reflow
  • *IMP: (copper-tin) Inter-Metallic Phase
  • **Coating thickness ≤ 2 µm available upon request.

Supply formats

We offer different types of supply formats for your products:

  • Vertical axis ("eye to sky") pancake coils
  • Horizontal axis ("eye to wall") pancake coils
  • Traverse wound coils
  • TECSTRIP® Multilayer
  • Picture: © Julius Silver / Pexels
  • Vertical axis ("eye to sky") pancake coils
    • Pallet size:  from 800×800 mm to 1500×1500 mm
    • Coil dividers: wooden battens or card inserts
    • Wooden crates also available
    • Coil cradles min. 280 mm width at 5.7 kg/mm

 

  • Horizontal axis ("eye to wall") pancake coils
    • Coil cradles min. 280 mm width at 5.7 kg/mm
  • Traverse wound coils
    • Narrow strip is wound on a drum, traversing from side to side (like thread on a reel); coil ends are welded together, forming a much longer coil.
  • TECSTRIP® Multilayer

    The cost-effective coil of Copper, Bronze and High Performance STOL® alloys. Specially-joined individual pancake coils that offer uninterrupted full-quantity stamping. This gives you better productivity and lower costs when processing our alloys.

    TECSTRIP® Multilayer comprises several coils (actual number depends on strip width) supplied on a pallet, which offer non-stop processing. The coil ends are welded together to effectively form one very long coiled strip. TECSTRIP® Multilayer decoils continuously in an inwards and outwards manner during processing, so the operator no longer needs to stop and re-start the machinery.

 

Your Contacts

KME Stolberg GmbH

German Factory & European Sales Center

KME Germany GmbH

Factory & Sales Center

KME Stolberg GmbH - Chicago IL

North America Sales Center