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    Cortland - Spectra 12 Strand & 12x12

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    Cortland Spectra® 12 strand provides very high strength, low stretch and excellent abrasion resistance in a single braid construction. The equivalent weight rope is more than 3 times as strong as polyester and has less than one half of the elongation. Cortland Spectra® 12 strand is delivered standard with a polyurethane finish and is easily spliced using a simple lockstitch type splice, 4-3-2 or 5-4-3 Tuck Splice. Its soft, torque free braided construction provides easy handling. Features & Benefits • Very low stretch • Very high strength • Soft hand • Torque free • Easy splicing • Floats Applications • Vessel mooring lines • Tug winch lines • Emergency towlines • Utility winch and pulling lines • Recreational vehicle winch lines • Theatrical rigging lines See the chart below for technical information on Cortland Spectra® 12 strand & Spectra® 12x12 strand rope.

    Fabrication Time: 2 weeks
      Nominal   Diameter  Size (circ in.) Approximate   Weight Minimum   Tensile Strength Spliced Rope Minimum   Tensile Strength ISO Unspliced Rope
    Inch  mm Inch Lbs/100ft Kg/100m Lbs Te (tonnes) Lbs  Te (tonnes)
    12 Strand 7/64 2.5 5/16 0.33 0.5 1,125 0.51 1,300 0.57
    1/8 3 3/8 0.53 0.8 1,800 0.82 2,000 0.91
    3/16 5 9/16 1 1.5 3,600 1.6 4,000 1.8
    1/4 6 3/4 1.6 2.4 6,000 2.7 6,700 3
    5/16 8 15/16 2.6 3.9 9,000 4.1 10,000 4.5
      ABS and DNV Type Approved   Sizes
    12 Strand 3/8 9 1-1/8 3.7 5.5 13,900 6.3 15,400 7
    7/16 11 1-1/4 4.2 6.3 14,800 6.7 16,400 7.5
    1/2 12 1-1/2 6.4 9.5 22,500 10.2 25,000 11.3
    9/16 14 1-3/4 7.9 11.8 27,700 12.6 30,800 14
    5/8 16 2 10.6 15.8 36,600 16.6 40,700 18.5
    3/4 18 2-1/4 13.3 19.8 43,200 19.6 48,000 21.8
    7/8 22 2-3/4 19.6 29.2 61,000 27.7 67,800 30.8
    1 24 3 23.4 34.8 72,000 32.7 80,000 36.3
    1-1/16 26 3-1/4 27.6 41.1 81,000 36.8 90,000 40.8
    1-1/8 28 3-1/2 31.9 47.5 91,800 41.7 102,000 46.3
    1-1/4 30 3-3/4 36.2 53.9 102,600 46.6 114,000 51.7
    1-5/16 32 4 41.7 62.1 114,300 51.9 127,000 57.6
    1-1/2 36 4-1/2 51.7 76.9 141,300 64.1 157,000 71.2
    1-5/8 40 5 65.7 97.8 167,400 76 186,000 84.4
    1-3/4 44 5-1/2 78.4 116.7 198,000 89.8 220,000 99.8
    12x12 Strand 2 48 6 91.4 136 225,000 102.1 250,000 113.4
    2-1/8 52 6-1/2 109 162.2 270,000 122.5 300,000 136.1
    2-1/4 56 7 122 181.6 317,700 144.1 353,000 160.2
    2-1/2 60 7-1/2 148 220.3 360,000 163.3 400,000 181.5
    2-5/8 64 8 167 248.5 370,800 168.2 412,000 186.9

    Type approved product

                           

    Rope Specifications

    Minimum Tensile Strength Minimum tensile strengths shown are for new (unused) rope and will decrease after use. All tests are performed in accordance with Cordage Institute Standard CI 1500-2. The rope strength will be reduced after use due to heat, abrasion, ultraviolet or chemical exposure. The tensile strengths may be further reduced by up to 50% as a result of knots or kinks. Minimum tensile strengths are defined as two standard deviations (typical about 10%) below the average.

     

    Maximum Working Loads Maximum working loads are determined by dividing the tensile strength by the safety factor. The safety factor is a function of the physical properties of the rope, the age and history of the rope, the type of service it will be subjected to and the risks involved if failure occurs. For a rope manufacturer to give blanket working load recommendations would be like a car manufacturer giving the “safe driving speed” of their cars. Obviously the conditions of use far outweigh the design characteristics of the rope. Typically safety factors vary from 3:1 (for new rope used in applications with uniform loading and where failure would cause little or no risk to equipment or personnel) to 20:1 (for conditions involving moderate shock loading, possibility of snags or kinks or where failure could cause severe risk to equipment or personnel).

     

    Rope Weights Rope weights shown are average and may vary plus or minus 5%.

     

    Working Elongation Working elongation is shown from a preload tension of 200 times the diameter squared per the Cordage Institute Standard.

    CT_TL_018_1115_US

     

    Special Requirements

    Factory Splicing Various types are available for all of our ropes. Splices can be provided with various types of chafe protection or coatings.

     

    Custom Lengths Special constructions are available on request.

     

    Rope Terminations Cortland can provide custom terminations such as thimbles, links, rings and custom hardware. Terminations are available in plastic, bronze, stainless steel and galvanized steel. Please call or fax your requirements for a quotation.

     

    Special Coatings Coatings such as polyurethane, polyethylene and vinylesters may be applied to any of the synthetic ropes to improve snag resistance, sunlight resistance or for color coding. Cortland can provide ropes with a variety of finishes to meet your needs.

     

    Commercial and Military Specifications Certificates of compliance are

    supplied at no charge if requested when placing the order. Certified test reports

    can be provided at an additional charge when requested at the time of the order.

    All goods are custom made and Non-returnable. Any return must be negotiated, include a return authorization number and will be subject to a restocking fee.
      Nominal   Diameter  Size (circ in.) Approximate   Weight Minimum   Tensile Strength Spliced Rope Minimum   Tensile Strength ISO Unspliced Rope
    Inch  mm Inch Lbs/100ft Kg/100m Lbs Te (tonnes) Lbs  Te (tonnes)
    12 Strand 7/64 2.5 5/16 0.33 0.5 1,125 0.51 1,300 0.57
    1/8 3 3/8 0.53 0.8 1,800 0.82 2,000 0.91
    3/16 5 9/16 1 1.5 3,600 1.6 4,000 1.8
    1/4 6 3/4 1.6 2.4 6,000 2.7 6,700 3
    5/16 8 15/16 2.6 3.9 9,000 4.1 10,000 4.5
      ABS and DNV Type Approved   Sizes
    12 Strand 3/8 9 1-1/8 3.7 5.5 13,900 6.3 15,400 7
    7/16 11 1-1/4 4.2 6.3 14,800 6.7 16,400 7.5
    1/2 12 1-1/2 6.4 9.5 22,500 10.2 25,000 11.3
    9/16 14 1-3/4 7.9 11.8 27,700 12.6 30,800 14
    5/8 16 2 10.6 15.8 36,600 16.6 40,700 18.5
    3/4 18 2-1/4 13.3 19.8 43,200 19.6 48,000 21.8
    7/8 22 2-3/4 19.6 29.2 61,000 27.7 67,800 30.8
    1 24 3 23.4 34.8 72,000 32.7 80,000 36.3
    1-1/16 26 3-1/4 27.6 41.1 81,000 36.8 90,000 40.8
    1-1/8 28 3-1/2 31.9 47.5 91,800 41.7 102,000 46.3
    1-1/4 30 3-3/4 36.2 53.9 102,600 46.6 114,000 51.7
    1-5/16 32 4 41.7 62.1 114,300 51.9 127,000 57.6
    1-1/2 36 4-1/2 51.7 76.9 141,300 64.1 157,000 71.2
    1-5/8 40 5 65.7 97.8 167,400 76 186,000 84.4
    1-3/4 44 5-1/2 78.4 116.7 198,000 89.8 220,000 99.8
    12x12 Strand 2 48 6 91.4 136 225,000 102.1 250,000 113.4
    2-1/8 52 6-1/2 109 162.2 270,000 122.5 300,000 136.1
    2-1/4 56 7 122 181.6 317,700 144.1 353,000 160.2
    2-1/2 60 7-1/2 148 220.3 360,000 163.3 400,000 181.5
    2-5/8 64 8 167 248.5 370,800 168.2 412,000 186.9

    Type approved product

                           

    Rope Specifications

    Minimum Tensile Strength Minimum tensile strengths shown are for new (unused) rope and will decrease after use. All tests are performed in accordance with Cordage Institute Standard CI 1500-2. The rope strength will be reduced after use due to heat, abrasion, ultraviolet or chemical exposure. The tensile strengths may be further reduced by up to 50% as a result of knots or kinks. Minimum tensile strengths are defined as two standard deviations (typical about 10%) below the average.

     

    Maximum Working Loads Maximum working loads are determined by dividing the tensile strength by the safety factor. The safety factor is a function of the physical properties of the rope, the age and history of the rope, the type of service it will be subjected to and the risks involved if failure occurs. For a rope manufacturer to give blanket working load recommendations would be like a car manufacturer giving the “safe driving speed” of their cars. Obviously the conditions of use far outweigh the design characteristics of the rope. Typically safety factors vary from 3:1 (for new rope used in applications with uniform loading and where failure would cause little or no risk to equipment or personnel) to 20:1 (for conditions involving moderate shock loading, possibility of snags or kinks or where failure could cause severe risk to equipment or personnel).

     

    Rope Weights Rope weights shown are average and may vary plus or minus 5%.

     

    Working Elongation Working elongation is shown from a preload tension of 200 times the diameter squared per the Cordage Institute Standard.

    CT_TL_018_1115_US

     

    Special Requirements

    Factory Splicing Various types are available for all of our ropes. Splices can be provided with various types of chafe protection or coatings.

     

    Custom Lengths Special constructions are available on request.

     

    Rope Terminations Cortland can provide custom terminations such as thimbles, links, rings and custom hardware. Terminations are available in plastic, bronze, stainless steel and galvanized steel. Please call or fax your requirements for a quotation.

     

    Special Coatings Coatings such as polyurethane, polyethylene and vinylesters may be applied to any of the synthetic ropes to improve snag resistance, sunlight resistance or for color coding. Cortland can provide ropes with a variety of finishes to meet your needs.

     

    Commercial and Military Specifications Certificates of compliance are

    supplied at no charge if requested when placing the order. Certified test reports

    can be provided at an additional charge when requested at the time of the order.

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