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MEDICAL WIRE

Superior surface cleanliness, homogeneous strength for fine and ultra-fine sizes, and application-based quality control ensures optimum conditions for various post processing.

  • NITINOL WIRE
  • FLAT ROLLED WIRE
  • STRAIGHTENED WIRE
  • SCREW ROPE, ROLLED, ROUND COIL
  • PTFE COATED WIRE
  • ULTRA-HIGH-STRENGTH WIRE, ULTRA-HIGH-STRENGTH ROPE

RANGE

KOS Nitinol Wire specifications are categorized into drawing and hyper-elastic products.

SPECIFICATIONS

Chemical composition (wt%) : ASTM F2063 - "Standard Specification for Wrought Nickel-Titanium Shape Memory Alloys for Medical Devices And Surgical Implants"

Ni C Co Cu Cr H Fe Nb N+O Ti
54.5~57.0 max. 0.05 max. 0.05 max. 0.01 max. 0.01 max. 0.005 max. 0.05 max. 0.025 max. 0.05 Bal.

Diameter range

Diameter range Diameter tolerance Deviation
0.10 ~ 1.80mm
(0.0039" ~ 0.0708")
≤ 1.00mm (0.040") ± 0.0075mm (0.0003") ≤ 0.005mm (0.0002")
> 1.00mm (0.040") ± 0.010mm (0.0004") ≤ 0.01mm (0.0004")
Classification SPECIFICATIONS
Drawn wire Mechanical
properties
T/S min. 1225 Mpa
E/L min 5.0 %
Cast min. 200mm (7.875")
Surface condition Black Oxide, Light Oxide , Bright (Oxide Free)
Hyper-elasticity Mechanical
properties
Upper Plateau Stress at 3% strain min. 415 Mpa
Lower Plateau Stress at 2.5% strain min. 100 Mpa
Ultimate Tensile Strength min. 1140 Mpa
Uniform Elongation min. 10.0 %
Residual Elongation after 6% Strained max. 0.3 %
Af temperature -5℃≤ Af ≤ +18℃
Straightness max. 0.5/200mm (max. 0.0197/7.875")
Surface condition Black Oxide, Light Oxide , Bright (Oxide Free) ,
Electro-polished

SPECIFICATIONS

Application : Medical Catheter Braiding, Guide wire, Spring

Applicable grade : 304, 304V, 316, 316LVM

Range of dimension

Thickness Width
0.017mm ~ 0. 050mm (0.0007" ~ 0.0020") Max. 7 ~ 10 times of the thickness

T/S : W1 (Annealed) ~ FH (Full Hard)

Characteristics

  • - Surface : Bright
  • - Edge shape : Natural Edge

SPECIFICATIONS

Application : Medical Guide wire, Medical equipment

Characteristics

  • - When manufacturing guide wire, deep taper grinding is possible without special heat treatment.
  • - Straightness that does not change even at long term storage at room temperature
  • - Applicable grade : 304, 304V, 302, 301

Range of size

  • - Diameter range : 0.10 ~ 0.85 mm
  • - Packing : BS-1 (SD-300K), 460-SP (SH-460K)

Product Characteristics

Category Characteristics Remarks
Straightness Normal max. 4.0/300 mm max. 2.0/200 mm Acupuncture quality
Good max. 2.0/300 mm max. 1.0/200 mm
Excellent max. 1.0/300 mm max. 0.5/200 mm Excellent torque performance
Suitable for Tapered guide wire

KOS SCREWROPE

Possible grade : 304, 304V

Construction : 1x7, 1x19 (Construction)

Diameter range : 0.50 ~ 0.90mm

Most used length : 1.90M ~ 2.70M

Characteristics

  • - Excellent straightness
  • - Outstanding torque performance
  • - Clean surface
  • - Excellent quality for price

KOS COIL

Possible grade : 304, 304V

Type : Rolled coil, Round coil

Diameter range : 0.90 ~ 2.70mm

Most popular length : 1.90M ~ 2.70M

Excellent straightness

SPECIFICATIONS

Application : Medical spring, Guide Wire, Catheter

Applicable grade : 304, 304V

Diameter range : 0.13 ~ 0.40 mm

Package : Spool

Characteristics

  • - PFOA Free
  • - Coating thickness : 2~ 5㎛

SPECIFICATIONS

Application : Medical device – guide Wire, Catheter

Applicable grade : 304, 304V

Diameter range : 0.020 ~ 0.50 mm

T/S : Almost same as Steel Piano wires

Category Steel Piano wires
JIS G 3522 JIS G 4314 EN 10270-3, 1.4310
N/㎟ Kpsi. N/㎟ N/㎟
Min Max Min Max Min Max Min Max
d ≤0.08 3190 3480 463 505 2150 2400 2350 2710
0.08< d ≤0.09 3140 3430 455 497
0.09< d ≤0.10 3090 3380 448 490
0.10< d ≤0.11 3040 3330 441 483
0.11< d ≤0.12
0.12< d ≤0.14 2990 3290 434 477
0.14< d ≤0.16 2940 3240 426 470
0.16< d ≤0.18 2890 3190 419 463
0.18< d ≤0.20 2840 3090 412 448
0.20< d ≤0.23 2790 3040 405 441 2050 2300 2300 2650
0.23< d ≤0.25 2750 2990 399 434
0.25< d ≤0.26
0.26< d ≤0.28 2700 2940 392 426
0.28< d ≤0.29
0.29< d ≤0.30 2650 2890 384 419
0.30< d ≤0.32 2250 2590
0.32< d ≤0.33 2600 2840 377 412
0.33< d ≤0.35
0.35< d ≤0.40 2550 2790 370 405
0.40< d ≤0.41 2550 2790 370 405 1950 2200 2200 2530
0.41< d ≤0.45
0.45< d ≤0.50 2550 2750 363 399

Ultra-high-strength Rope: Ultra-high strength ropes consist of ultra high strength wire (2800 ~ 3400N / ㎟)

  • - Most popular construction and diameter: 0.30 ~ 0.60mm , 1 X 7 Construction