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Oxygen Free Copper Rod

Diameter: 8mm/12.5mm/16.5mm
Superior Eletrical Conductivity
High Thermal Conductivity
High Ductility
Good for low frequency signal transmission
Less Surface Oxides
High Creep resistance
Inclusion Free Product
Good Weldability
Packing upto 5 tons coil duly palletized and packed

Oxygen free Copper Rod

The OFC Rod with ten upward casting lines from Rautomead, UK with a total capacity of 8000 tons a year

The OFC Rod plant with five upward casting lines from India, with a capacity of 4500 tons per year.

TECHNICAL SPECIFICATIONS

Standards ASTM B 49- 10 ( Table 1: UNS number 10200)
Diameter 8 mm to 16 mm
Size 8 mm, 12.5 mm & 16mm
Packaging in Coils
Internal Diameter
Outer Diameter
Coil Weight
Wooden Pallet 1500 * 1500 mm and HDPE cover
950 mm
1500 mm
Upto 5 mt as per customer requirement (standard coil weight 1, 2.2, 3 & 4 mt)

Standards OF Mechanical Properties (OF Rod , not rolled) : ASTM B 49 (Table UNS No. C10200-Copper type OFC)

UNS Number 11200 Copper Type Unit ASTM B49-09 TTCL Typical
Copper, min % min 99.90 > 99.996
Tellurium ppm 2 < 1.0
Selenium ppm 2 <1.0
Bismuth, max ppm 1 1
Antimony max ppm 4 0.9
Arsenic max ppm 5 1.16
Tin, max ppm 5 0.42
Lead max ppm 5 0.7
Nickel max ppm 10 0.76
Sulfur, max ppm 15 7-8
Silver, max ppm 25 9.2
Oxygen ppm <10 <10
% Elongation % min 30% min >38
Tensile strength Min Mpa / N/mm2 >170 >170
Surface Oxide Angstrom max 750 <300
Conductivity % IACS 100%Min >102
Diameter Tolerance +/-0.38 mm < +/-0.20

Quality features

  • Superior Electrical Conductivity.
  • High Thermal conductivity.
  • High Ductility.
  • Good for low frequency signal transmission.
  • Less Surface Oxides.
  • High Creep Resistance.
  • Inclusion free product.
  • Good Weldability.

Ideal raw material for:

  • Drawing wires in the industry of large motors, transformers, wire and cables.
  • Aerospace industry, automotive harnesses, robotic arms, printer head cables.
  • High end audio and video systems.
  • Trolley wire ( High Creep resistance).
  • production of ultra-fine magnet wire and as a feedstock for continuous extrusion for miniaturized circuitry of electronics industry.
  • Multi strand drawing machines.
  • Strips being made with conform process.
  • Energy and heat transfer system e.g. solar & Thermal panels.
  • Telecom industry cables, requiring high electrical conductivity, good weldability, tight physical tolerance and very clean product.

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    Bare Wires

    The wire drawing and enamelling section has been proposed to meet the demand of existing as well as new clients. The most common standard wire gauges (SWG)which are in demand are 10, 19, 22 & 27 gauges. The machinery has been selected to produce the entire range of the SWG gauges, with minor changes in dies and tools.

    Bare Wires

    TECHNICAL SPECIFICATIONS

    Item Specification
    Copper content 99.99 % Minimum
    Diameter 0.30 – 5.00 mm
    Tolerance +0.00 – 0.04 mm
    Standard ASTM B-1 (Hard)
    ASTM B-2 (Medium Hard)
    Electrical conductivity (IACS @ 20° C) 100 % Minimum
    Surface condition Clean and free from scratches
    Packaging In cardboard drums with sea worthy packing
    Bunch weight Up to 500 Kgs
    Other requirements As per feasiblity

    Super Enamelled Wire

    Enamelled winding wire is a film insulated copper (or aluminium) electrical conductor used in form of coil windings in motors, transformers, generators and other electromagnetic equipments.

    Bare/ Supper Enamelled Copper Wire

      1 2 3 4 5 6 7
    Type of enamelled wire High mechanical strength Self solderable& bondable General purpose High mechanical strength High Thermal & mechanical strength High temperature High temperature
    SPECIFICATIONS/ STANDARD IS : 13730-1/ IEC-60317-1/
    NEMA
    MW-15C/
    JIS C 3202-PVF
    IS : 13730-2/
    IEC-60317-2
    IS : 13730-3/
    IEC-60317-3/
    NEMA
    MW-5C 
    IS : 13730-4/
    IEC-60317-4/
    NEMA
    MW-75C/
    JIS C 3202-UEW
    IS : 13730-7/
    IEC-60317-7
    IS : 13730-8/
    IEC-60317-8/
    NEMA
    MW-30C/
    72C (Hermetic)
    JIS C 3202-EIW
    IS : 13730-13/
    IEC-60317-13/
    NEMA
    MW-30C/
    73C (Hermetic)
    THERMAL CLASS 130 (B) 130 (B) 155 (F) 130 (B) 200 180 (H) 200 (C)
    Chemical base of base/ Single coat Modified Polyvinyl Acetal Polyurethane Modified Polyester Polyurethane Polyimide Polyesterimide Theicpolyester/ Polyesterimide
    Chemical base of top coat   Polyvinyl butyral/Polyamide         Polyamideimide
    Range of Wire (Diameter) 6.400-0.500 mm 2.000-0.050 mm 6.400-0.050 mm 2.000-0.050 mm 6.400-0.020 mm 6.400-0.050 mm 6.400-0.050 mm
    Insulation Range Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1 & 2
    as per IEC
    (Single & Heavy as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Standard colour Golden Yellow to Light Orange As per requirements Light Brown/ Medium Brown As per requirements Golden Yellow to Light Orange Light Brown/ Medium Brown Light Brown/ Medium Brown
    Heat shock (°C) 155 155 175 155 240 200 220
    Cut through (°C) 170 170 240 170 400 300 320
    Solderable temperature (°C) Not applicable 375 Not applicable 375 Not applicable Not applicable Not applicable
    Resistance to Abrasion for 1.00mm dia grade 2 wire (n) >11.3 >9.3 >10.4 >9.3 >6.6 >10.9 >11.3
    Resistance to refrigerants Very good Not applicable Not applicable Not applicable Very good Good Very good
    Flexibility & Adherence Very good Good Good Good Very good Good Very good
    Bonding Temperature (°C) Not applicable 170/200 depending on overcoat Not applicable Not applicable Not applicable Not applicable Not applicable
    SPECIAL CHARACTERSISTICS & APPLICATION High mechanical properties,
    good
    transformer oil
    resistance,
    suitable for
    130°C
    Hermetic
    applications,
    used in oil filled
    transformers &
    equipments
    requiring high
    mechanical
    properties such
    as auto
    electricals.
    Solderable,
    thermoplastic
    bonded by heat
    or solvent, used
    for all self
    supported coils
    for television,
    electronics,
    small motors,
    relays,
    magnets,
    telephones &
    voice coils of all
    kinds can be
    bonded in forms
    by heating at
    170/180°C
    Upgraded
    thermo
    mechanical
    properties
    compared to
    ordinary
    polyesters,
    used in ignition
    coils,
    oil filled
    transformers,
    relays,
    contractors, fhp
    motors. This
    version can also
    be made for
    upgraded
    abrasion.
    Self solderable
    property with
    good insulation
    resistance, high
    flexibility used in
    all
    communication
    equipments,
    relays, magnetic
    spools,
    universal &
    non-
    impregnated
    winding of all
    kinds of
    transformers.
    Designed
    for using of
    wire for
    product with
    maximum
    value of the
    thermal and
    mechanical
    characteristics
    Good
    resistance
    against
    refrigerants,
    transformer oil.
    High burnout
    resistance,
    used in fhp
    motors,
    hermetic
    application and
    thermal class
    180°C
    equipments.
    Very good
    resistance for
    refrigerants &
    chemicals, high
    burnout
    resistance,
    excellent
    windability, low
    coefficient of
    friction, high
    slotfill factor,
    used in special
    motors including
    Hermetic motors,
    Armatures,
    Alternators,
    Power Tools and
    high HP motors,
    suitable for high
    speed coil
    winding.
    Delivery Spools Please refer to Copper Enamelled Winding Wire Packing Range Chart
    Special Notes     Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required. Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required.   Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required. Top coat Polyamide imide can be supplied of the type Self Lubricated, if required.
    * IS 13730 and IEC 60317 are  harmonized standards           
      8 9 10 11 12 13 14
    Type of enamelled wire Self solderable Self solderable Self solderable High temperature Self solderable   High temperature
    SPECIFICATIONS/ STANDARD IS : 13730-19/
    IEC-60317-19/
    NEMA
    MW-28C
    IS : 13730-20/
    IEC-60317-20/
    NEMA
    MW-79C
    IS : 13730-21/
    IEC-60317-21
    IS : 13730-22/
    IEC-60317-22/
    NEMA
    MW-76C
    IS : 13730-23/
    IEC-60317-23
    IS : 13730 (Under/ preparation)/
    IEC-60317(Under
    preparation)/
    NEMA MW-24C
    IS : 13730-26/
    IEC-60317-26/
    NEMA
    MW-81C
    THERMAL CLASS 130 (B) 155 (F) 155 (F) 180 (H) 180 (H) 155 (F) 200 (C)
    Chemical base of base/ Single coat Polyurethane Polyurethane Polyurethane Polyester/ Polyesterimide Polyesterimide Polyester Polyamideimide
    Chemical base of top coat Nylon   Nylon Nylon      
    Range of Wire (Diameter) 2.000-0.050 mm 0.800-0.050 mm 1.60-0.050 mm 6.400-0.050 mm 1.60-0.050 mm 1.60-0.254 mm 1.60-0.071 mm
    Insulation Range Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Standard colour As per requirements As per requirements As per requirements Medium Brown to Dark Brown Light Brown As per requirements Light Brown
    Heat shock (°C) 155 175 175 200 200 175 220
    Cut through (°C) 170 200 200 265 265 240 350
    Solderable temperature (°C) 375 390 390 Not applicable 470 Not applicable Not applicable
    Resistance to Abrasion for 1.00mm dia grade 2 wire (n) >9.3 >8.3
    (0.8 mm)
    >9.3 >10.9 >10.9 >10.0 >7.05
    (for gr.1)
    Resistance to refrigerants Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Very good
    Flexibility & Adherence Good Good Good Good Good Good Good
    Bonding Temperature (°C) Not applicable Not applicable 170/200 depending on overcoat 170/200 depending on overcoat 170/200 depending on overcoat Not applicable Not applicable
    SPECIAL CHARACTERSISTICS & APPLICATION Low coefficient of
    friction, besides
    properties of
    general purpose
    polyurethane.
    It is suitable for
    winding in small
    size motors, coils
    of electrical
    instruments,
    especially of high
    speed winding.
    Self solderable
    property with its
    low dielectric
    dissipation factor
    under high
    frequency. It can
    be widely used in
    electrical
    instruments of
    machine tools,
    motors which
    have special
    requirements of
    this type of
    enamel.
    Low coefficient of
    friction, besides
    properties of
    polyurethane,
    suitable for
    winding in small
    and medium
    electrical
    instruments, for
    high speed
    winding.
    Used in all 180°C
    class equipment
    requiring high
    speed machine
    winding, low
    coefficient of
    friction.
    Self solderable
    with high potential
    both under the dry
    and humid
    conditions, good
    properties in heat
    shock and cut
    through, it is
    suitable for the
    coils of various
    motor appliances,
    instruments and
    telephone
    equipments.
    Good mechanical,
    electrical &
    chemical
    resistance
    properties.
    Improved for
    high speed
    winding.
    FHP motors,
    coils & relays,
    audio &
    instrument coils.
    High burnout
    resistance,
    excellent
    windability, low
    coefficient of
    friction, high
    slot fill factor,
    used in special
    types of
    motors &
    electromotive
    tools.
    Delivery Spools Please refer to Copper Enamelled Winding Wire Packing Range Chart
    Special Notes   Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required.          
    * IS 13730 and IEC 60317 are  harmonized standards           
      15 16 17 18 19 20 21
    Type of enamelled wire General purpose Self solderable/Self bonding Self solderable/Self bonding Self bonding General purpose General purpose Self solderable/High Temperature
    SPECIFICATIONS/ STANDARD IS : 13730-34/
    IEC-60317-34/
    JIS C 3202-PEW
    IS : 13730-35/
    IEC-60317-35
    JIS C 3202-SBUEW
    IS : 13730-36/
    IEC-60317-36
    JIS C 3202-SBUEW
    IS : 13730-37/
    IEC-60317-37
    IS : 13730-45/
    IEC-60317-45
    IS : 13730-54/
    IEC-60317-54
    IS : 13730-51/
    IEC-60317-51/
    NEMA
    MW-82C
    THERMAL CLASS 130 (B) 155 (F) 180 (H) 180 (H) 130 (B) 155 (F) 180 (H)
    Chemical base of base/ Single coat Polyester Polyurethane Polyesterimide Polyesterimide Polyester Polyester Polyurethane
    Chemical base of top coat   Polyvinyl butyral/Polyamide Polyvinyl butyral/Polyamide Polyvinyl butyral/Polyamide      
    Range of Wire (Diameter) 6.400-0.050 mm 0.800-0.050 mm 1.60-0.050 mm 1.60-0.050 mm 6.400-0.050 mm 6.400-0.050 mm 1.00-0.050 mm
    Insulation Range Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1b,2b & 3b
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1b,2b & 3b
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1b,2b & 3b
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Grade 1,2 & 3
    as per IEC
    (Single, Heavy & Triple as per NEMA)
    Standard colour Medium Brown As per requirements Light Brown/
    Dark Brown
    Light Brown/
    Dark Brown
    Light Brown/
    Medium Brown
    Light Brown/
    Medium Brown
    As per requirements
    Heat shock (°C) 155 175 200 200 155 175 200
    Cut through (°C) 240 200 265 300 240 240 240
    Solderable temperature (°C) Not applicable 390 470 Not applicable Not applicable Not applicable 450
    Resistance to Abrasion for 1.00mm dia grade 2 wire (n) >10.4 >8.1 >10.9 >10.9 >10.4 >10.4 >7.8
    Resistance to refrigerants Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable
    Flexibility & Adherence Good Good Good Good Good Good Good
    Bonding Temperature (°C) Not applicable 170/200 depending on overcoat 170/200 depending on overcoat 170/200 depending on overcoat Not applicable Not applicable Not applicable
    SPECIAL CHARACTERSISTICS & APPLICATION Good thermal &
    electrical
    properties,
    used in general
    purpose
    rotating & static
    electrical
    equipments, oil
    transformers,
    control coils.
    Solderable,
    thermoplastic
    bonded by heat
    or solvent, used
    for all self
    supported coils
    for television,
    electronics, small
    motors, relays,
    magnets,
    telephones &
    voice coils of
    all kinds
    can be bonded in
    forms by heating
    at 170/180°C
    Solderable,
    thermoplastic
    bonded by heat
    or solvent, used
    for all self
    supported coils
    for television,
    electronics, small
    motors, relays,
    magnets,
    telephones &
    voice coils of
    all kinds
    can be bonded in
    forms by heating
    at 170/180°C
    Class 180°C
    with self bonding
    property and
    all other
    properties of
    Polyesterimide.
    General purpose
    130°C polyster.
    Good thermal &
    electrical
    properties,
    used in general
    purpose
    rotatng &
    static electrical
    equipments, oil
    transformers,
    control coils.
    General purpose
    155°C polyester
    with heat shock
    at higher mandrel
    diameter. Good
    thermal &
    electrical
    properties,
    used in general
    purpose rotating
    & static electrical
    equipments, oil
    transformers,
    control coils.
    Good mechanical,
    electrical &
    chemical
    resistant
    properties.
    Improved thermal
    resistance. Fast
    solderability.
    Fractional &
    integral
    horsepower
    motors
    Class 155.
    Coils & relays.
    Instrument &
    audio coils.
    Delivery Spools Please refer to Copper Enamelled Winding Wire Packing Range Chart
    Special Notes Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required. Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required.   Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required.     Can be supplied with Polyamide (Nylon) topcoated for improved high-speed windability, if required.
    * IS 13730 and IEC 60317 are  harmonized standards           
















    DIAMETERS
    (mm) / SWG
    SPOOL
    TYPE
    PT
    1
    125
    mm
    PT
    4
    160
    mm
    PT
    10
    200
    mm
    PT
    15
    250
    mm
    PT
    25
    PT
    45
    400
    mm
    PT
    90
    PT
    190
    PT
    400
    LARK SPOOL
    CODE (click on Spool Code to view figure)
    App wire
    wt. Kgs
    1.5 2 - 2.5 4 5 10 10 15 20 25 45 60 90 190 400
    0.05 - 0.14
    47 - 38
      OO OO SP SP OO OO
    >0.14 - 0.28
    37 - 32
    OO OO SP SP OO OO
    >0.28 - 0.50
    31 - 26
    OO OO SP OO OO OO OO
    >0.50 - 0.70
    25 -23
    OO OO SP OO OO OO OO OO
    >0.70 - 2.30
    22 - 14
    OO SP OO OO OO OO OO OO
    >2.30 - 4.50
    13 - 8
    OO OO OO SP OO OO
    >4.50 - 6.60
    7 - 3
    OO SP OO OO
    SP - Standard Packing                                     OO - On Order
        D1 D2 D3 D4 D5 L1 L2 S1  
    SPOOL
    CODE
    Reel Description
    Size/Type 
    Bottom
    Flange
    Dia. (mm) 
    Bottom
    Barrel
    Dia. (mm)
    Top
    Flange
    Dia. (mm)
    Top Side
    Barrel
    Dia. (mm)
    Bore
    Size
    (mm)
    Total
    Length
    (mm)
    Inside
    Traverse
    Length (mm)
    Flange
    Thickness
    Bott./Top 
    Approx wire
    Weight
    (Kgs)
    No. of
    Reels
    per box
    S1 PT - 1 105 58 95 53 20 120 100 10 1.5 8
    S2 125 mm. 125 60 125 60 25 93 70 12 2 - 2.5 8
    S3 PT - 4 140 86 124 74 26 200 170 15 4 4
    S4 160 mm. 160 100 160 100 22 160 128 11 5 4
    S5 PT - 10 180 110 160 96 26/30 230 200 15 10 1
    S6 200 mm. 200 110 200 110 38 155 120 15 10 1
    S7 PT - 15 200 110 180 96 30 230 200 15 15 1
    S8 250 mm. 250 110 250 110 38 153 125 15 20 1
    S9 PT - 25 230 130 215 110 30/32/34 280 250 15 25 1
    S10 PT - 45 250 160 236 140 106 400 335 32.5 45 1
    S11 400 mm. 400 200 400 200 38 195 150 23 60 1
    S12 PT - 90 315 200 300 180 106 500 425 37.5 90 1
    S13 PT - 190 400 250 375 224 106 630 530 50 190 1
    S14 PT - 400 500 315 475 280 100 800 670 65 400 1
    Notes: 1) Spools could also be available as per DIN - 46383, 46399, IEC 264 or as per customer's requirement
                 2) Information is for general guidance and is subject to change.
                 3) Can supply Spools packed on pallets and shrinkwrapped.
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    Copper Billets

    Copper billets will mainly be exported to various countries across the globe as per their utility in different markets and as per their applications.

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