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
     

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 **
KMD 336CuZn36CW 507 LC27000C2700CZ108MS/m ≥ 15IACS(%) ≥ 25Details & Downloads

KMD 336

    Material designations

  • DIN-EN: CuZn36
  • CEN: CW 507 L
  • ASTM: C27000
  • JIS: C2700
  • BS: CZ108

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 25

Downloads

KMD 305CuZn5CW 500 LC21000C 2100CZ125MS/m ≥ 12IACS(%) ≥ 20Details & Downloads

KMD 305

    Material designations

  • DIN-EN: CuZn5
  • CEN: CW 500 L
  • ASTM: C21000
  • JIS: C 2100
  • BS: CZ125

    Conductivity **

  • MS/m ≥ 12
  • IACS(%) ≥ 20

Downloads

KMD 310CuZn10CW 501 LC22000C2200CZ101MS/m ≥ 9IACS(%) ≥ 15Details & Downloads

KMD 310

    Material designations

  • DIN-EN: CuZn10
  • CEN: CW 501 L
  • ASTM: C22000
  • JIS: C2200
  • BS: CZ101

    Conductivity **

  • MS/m ≥ 9
  • IACS(%) ≥ 15

Downloads

KMD 315CuZn15CW 502 LC23000C2300CZ102MS/m ≥ 8IACS(%) ≥ 13Details & Downloads

KMD 315

    Material designations

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

    Conductivity **

  • MS/m ≥ 8
  • IACS(%) ≥ 13

Downloads

KMD 330CuZn30CW 505 LC26000C2600CZ106MS/m ≥ 23IACS(%) ≥ 39Details & Downloads

KMD 330

    Material designations

  • DIN-EN: CuZn30
  • CEN: CW 505 L
  • ASTM: C26000
  • JIS: C2600
  • BS: CZ106

    Conductivity **

  • MS/m ≥ 23
  • IACS(%) ≥ 39

Downloads

KMD 333CuZn33CW 506 LC26800C2680-MS/m ≥ 57IACS(%) ≥ 98Details & Downloads

KMD 333

    Material designations

  • DIN-EN: CuZn33
  • CEN: CW 506 L
  • ASTM: C26800
  • JIS: C2680
  • BS: -

    Conductivity **

  • MS/m ≥ 57
  • IACS(%) ≥ 98

Downloads

KMD 337CuZn37CW 508 LC27200C2720CZ107MS/m ≥ 55IACS(%) ≥ 94Details & Downloads

KMD 337

    Material designations

  • DIN-EN: CuZn37
  • CEN: CW 508 L
  • ASTM: C27200
  • JIS: C2720
  • BS: CZ107

    Conductivity **

  • MS/m ≥ 55
  • IACS(%) ≥ 94

Downloads

Bronze

DIN-ENCENASTMJISBSConductivity **
KMD 540CuSn4CW 450 KC51100C5111PB101MS/m ≥ 50IACS(%) ≥ 86Details & Downloads

KMD 540

    Material designations

  • DIN-EN: CuSn4
  • CEN: CW 450 K
  • ASTM: C51100
  • JIS: C5111
  • BS: PB101

    Conductivity **

  • MS/m ≥ 50
  • IACS(%) ≥ 86

Downloads

KMD 550CuSn5CW 451 KC51000C5102PB102MS/m ≥ 22IACS(%) ≥ 37Details & Downloads

KMD 550

    Material designations

  • DIN-EN: CuSn5
  • CEN: CW 451 K
  • ASTM: C51000
  • JIS: C5102
  • BS: PB102

    Conductivity **

  • MS/m ≥ 22
  • IACS(%) ≥ 37
KMD 560CuSn6CW 452 KC51910C5191PB103Details & Downloads

KMD 560

    Material designations

  • DIN-EN: CuSn6
  • CEN: CW 452 K
  • ASTM: C51910
  • JIS: C5191
  • BS: PB103

    Conductivity **

KMD 580CuSn8CW 453 KC52100C5210PB104MS/m ≥ 12IACS(%) ≥ 20Details & Downloads

KMD 580

    Material designations

  • DIN-EN: CuSn8
  • CEN: CW 453 K
  • ASTM: C52100
  • JIS: C5210
  • BS: PB104

    Conductivity **

  • MS/m ≥ 12
  • IACS(%) ≥ 20

Copper

DIN-ENCENASTMJISBSConductivity **
KMD 169Cu-OFECW 009 AC10100 & C10200C1010-MS/m ≥ 14IACS(%) ≥ 24Details & Downloads

KMD 169

    Material designations

  • DIN-EN: Cu-OFE
  • CEN: CW 009 A
  • ASTM: C10100 & C10200
  • JIS: C1010
  • BS: -

    Conductivity **

  • MS/m ≥ 14
  • IACS(%) ≥ 24

Downloads

KMD 160Cu-DLPCW 023 AC12000--MS/m ≥ 15IACS(%) ≥ 25Details & Downloads

KMD 160

    Material designations

  • DIN-EN: Cu-DLP
  • CEN: CW 023 A
  • ASTM: C12000
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 25

Downloads

KMD 159Cu-PHC (SE-Cu)CW 020 AC10300C10300-MS/m ≥ 16IACS(%) ≥ 27Details & Downloads

KMD 159

    Material designations

  • DIN-EN: Cu-PHC (SE-Cu)
  • CEN: CW 020 A
  • ASTM: C10300
  • JIS: C10300
  • BS: -

    Conductivity **

  • MS/m ≥ 16
  • IACS(%) ≥ 27

Downloads

KMD 100Cu-ETPCW 004 AC 11000C 1100C 101MS/m ≥ 58IACS(%) ≥ 100Details & Downloads

KMD 100

    Material designations

  • DIN-EN: Cu-ETP
  • CEN: CW 004 A
  • ASTM: C 11000
  • JIS: C 1100
  • BS: C 101

    Conductivity **

  • MS/m ≥ 58
  • IACS(%) ≥ 100

Downloads

KMD 158Cu-HCP (SE-Cu)CW 021 AC10300--MS/m ≥ 15IACS(%) ≥ 27Details & Downloads

KMD 158

    Material designations

  • DIN-EN: Cu-HCP (SE-Cu)
  • CEN: CW 021 A
  • ASTM: C10300
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 27

Downloads

KMD 165Cu-DHPCW 024 AC12200C1220-MS/m ≥ 14IACS(%) ≥ 24Details & Downloads

KMD 165

    Material designations

  • DIN-EN: Cu-DHP
  • CEN: CW 024 A
  • ASTM: C12200
  • JIS: C1220
  • BS: -

    Conductivity **

  • MS/m ≥ 14
  • IACS(%) ≥ 24

Downloads

High Performance Alloys (HPA)*

DIN-ENCENASTMJISBSConductivity **
STOL®94CuNiSiCW117CC 70310--Details & Downloads

STOL®94

    Material designations

  • DIN-EN: CuNiSi
  • CEN: CW117C
  • ASTM: C 70310
  • JIS: -
  • BS: -

    Conductivity **

Downloads

STOL®75-----Details & Downloads

STOL®75

    Material designations

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

    Conductivity **

Downloads

STOL®155CuAgCW 106 C---MS/m ≥ 15IACS(%) ≥ 26Details & Downloads

STOL®155

    Material designations

  • DIN-EN: CuAg
  • CEN: CW 106 C
  • ASTM: -
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 15
  • IACS(%) ≥ 26

Downloads

STOL®76MCuNiSiCW109CC19005--MS/m ≥ 25IACS(%) ≥ 43Details & Downloads

STOL®76M

    Material designations

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

    Conductivity **

  • MS/m ≥ 25
  • IACS(%) ≥ 43

Downloads

STOL®78CuMg-C18665--MS/m ≥ 50IACS(%) ≥ 86Details & Downloads

STOL®78

    Material designations

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

    Conductivity **

  • MS/m ≥ 50
  • IACS(%) ≥ 86

Downloads

STOL®95CuCr1ZrCW106CC18160--MS/m ≥ 52IACS(%) ≥ 89Details & Downloads

STOL®95

    Material designations

  • DIN-EN: CuCr1Zr
  • CEN: CW106C
  • ASTM: C18160
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 52
  • IACS(%) ≥ 89

Downloads

STOL®194CuFe2PCW107CC19400--Details & Downloads

STOL®194

    Material designations

  • DIN-EN: CuFe2P
  • CEN: CW107C
  • ASTM: C19400
  • JIS: -
  • BS: -

    Conductivity **

Downloads

STOL®80CuSnCW177CC14410--MS/m ≥ 35IACS(%) ≥ 60Details & Downloads

STOL®80

    Material designations

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

    Conductivity **

  • MS/m ≥ 35
  • IACS(%) ≥ 60

Downloads

STOL®76CuNi1Si-C19010--MS/m ≥ 23IACS(%) ≥ 39Details & Downloads

STOL®76

    Material designations

  • DIN-EN: CuNi1Si
  • CEN: -
  • ASTM: C19010
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 23
  • IACS(%) ≥ 39

Downloads

Special alloys

DIN-ENCENASTMJISBSConductivity **
KMD 820CuSn3Zn9/CuSn2Zn10-C 42500--Details & Downloads

KMD 820

    Material designations

  • DIN-EN: CuSn3Zn9/CuSn2Zn10
  • CEN: -
  • ASTM: C 42500
  • JIS: -
  • BS: -

    Conductivity **

Downloads

C15100CuZr---MS/m ≥ 46IACS(%) ≥ 79Details & Downloads

C15100

    Material designations

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

    Conductivity **

  • MS/m ≥ 46
  • IACS(%) ≥ 79

Downloads

C 70250CuNi3SiC70250--MS/m ≥ 35IACS(%) ≥ 60Details & Downloads

C 70250

    Material designations

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

    Conductivity **

  • MS/m ≥ 35
  • IACS(%) ≥ 60

Downloads

C 19210CuFe0,1PC19210--MS/m ≥ 36IACS(%) ≥ 62Details & Downloads

C 19210

    Material designations

  • DIN-EN: CuFe0,1P
  • CEN:
  • ASTM: C19210
  • JIS: -
  • BS: -

    Conductivity **

  • MS/m ≥ 36
  • IACS(%) ≥ 62

Downloads

     

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.

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:0.4 - 2.00 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.

Profiled Strip

Our rolling and grinding operations are part of an optimised production process that enables us to deliver the perfect solution tailored to your design.

In-line thickness gauging means our products have homogeneous material properties and extremely accurate dimensions. We can offer you a variety of options to stress-relieve the material after machining.

Product Range and Options

 

Availabilitymost KMD materials
Strip thickness(0.18) 0.23 to 1.00 mm
Strip width15 to 90 mm
Width tolerance (profile zone)+/- 0.025 mm
Thickness tolerance (profile zone)+/- 0.005 mm (100% checked)
Thickness transitionsharp-edged / free choice of bevel / 1.0 to 2.0mm radius
Orientation of profiled surface, de-coiling directionfree choice
Surface finish (outside profile zone)Ra = 0.2 μm
Surface finish (in profile zone)Ra = 0.1 to 0.2 μm
Special profilesTo customer drawing

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
  • 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

Albert Rumbach

Head of Technical Marketing, Application Engineering Manager

Dr. Tony Gan

Technical Marketing Manager

Liu Liu

Asia Pacific Sales Director