Stainless wire, Rope and Mesh manufacturer
Our top quality stainless spring wire guarantees excellent yield rate in coiling operation even by robot, and it stands to satisfy various customer requirements from precision spring and high strength spring(KOSPLUS) to medical use spring.
Applications
Aerosol Spring / Battery Welding / Compression Spring / Tension Spring / Torsion Spring / High Strength Spring / High Fatigue Spring / Medical Use Spring / Non-Magnetic Spring / Forming Spring
Grade
302, 304, 316, 631J1, KOS 96, DUPLEX 2205, NITRONIC 50, 904L,
Diameter
0.08 mm ~ 5.0 mm
Surface
S-Co, Ni-Co, Ni-Br, Br,
Strength
WPA WPB WPC
Packing
Coil ( 4 inch ~ 24 inch), Spool ( DIN 160~355, Steel 560~760), CARRIER (24/28 inch), REELLESS,
Standard
AMS 5688K, ASTM A313/A, BS 2056, DIN 2076, EN 10270-3, SAE J230, ISO 6931-1, JIS G4314, KS D3535
Reference
1. Mechanical properties of 631Ji Grade
2. Comparison of KOS 96 Tensile Strength
3. Comparison of Corrosion-resistance and Tensile Strength 
The efficiency of Cold Heading Process is determined by the quality of coating agent used in stainless wires. Developed by KOS, Eco-friendly Green Coating (G-Co) is recognized as the highest quality coating agent as well as being appraised for its excellent formability.
Applications
Bolt / Mechanical Bolt / Rivet / Blind Rivet / Screw / Tapping Screw / Nail / Washer
Grade
302HQ, 304, 304Cu, 304J3, 305J1, 316, 316L, KOS 92, 410, 430, 434Cu, XM-7
Diameter
0.8 mm ~ 13.0 mm
Surface
WSA, WSB,
Strength
Br, X-Co, Cu-Co, G-Co, Cu-Mo
Packing
Coil (12 inch ~ 32 inch), Carrier (16 inch~ 32 inch),
Standard
ASTM A439, JIS G4315, KS D3703, SAE J405
KOS weaving wire is produced with the highest quality raw materials, precise dies management and consistent annealing techniques, making it the best choice for high-tech material parts and ultra-fine printing mesh production.
Applications
LCD TV Panel / Printing Mesh / Refined Oil Filter / Industrial Mesh / Pharmaceutical Filter / Metal Fabric / Kitchenware
Grade
304, 304L, 309S, 310S, 314, 316, 316L, 316Ti, 317L, 321, 430
Diameter
0.025 mm ~ 0.80 mm
Surface
T/S : 500 N/㎟ ~ 1100 N/㎟ Elongation : 10 % ~ 45 %
Strength
Br,
Packing
Spool (MF 40~ 50, DIN 80 ~ DIN 250, PT 15~90, PL 2~8, P5 )
Standard
DIN/ISO 4782, EN 10264-4, AMS 5697B, ASTM A478, UNS S31608, DIN 4186
To increase production efficiencies of using the latest high-speed braiding machines, KOS produces a specially lubricated braiding wire that is specifically designed to meet each customers’ quality and packing requirements.
Applications
Automotive Bellows / Reinforced Hose / Sanitary Hose / Industrial Ventilator
Grade
304, 316
Diameter
0.10 mm ~ 0.60 mm
Surface
T/S : 780 N/㎟ ~ 950 N/㎟ Elongation : 25 % ~ 35 %
Strength
Br,
Packing
Spool ( DIN 125 ~ DIN 250, PT90 )
Standard
DIN/ISO 4782, EN 10264-4, AMS 5697B, ASTM A478, UNS S31608, DIN 4186
In accordance to development of knitting techniques that require higher elongation and toughness, KOS produces high performance knitting wires. Special lubrication on the surface of knitting wires is suitable for high-speed knitting process which guarantees increase in productivity.
Applications
Airbag Inflator Filter / Demister / Industrial Filter / Automobile Exhaust System
Grade
304, 304L, 316, 316L, 310S
Diameter
0.10 mm ~ 0.60 mm
Surface
T/S : 780 N/㎟ ~ 950 N/㎟ Elongation : 25 % ~ 35 %
Strength
Br,
Packing
Spool ( DIN 125 ~ DIN 200, PT90 )
Standard
DIN/ISO 4782, EN 10264-4, AMS 5697B, ASTM A478, UNS S31608, DIN 4186
The material choice for precise electronic parts must be adjusted based on user’s working environment and amount of magnetism in the metal. KOS free cutting wire guarantees excellent roundness, consistent surface hardness and clean surface which will increase the productivity of consumers.
Applications
Printer / Medical Equipment / Gas Equipment / Fascimile / Vending Machine / Micro Motor Shaft / Refrigerator / Oil Pressure Valve / Mobile Phone
Grade
303, 303C, 303F, 303H, 303N, 410, 410C, 416, 420F, 420J2, 440B, 440C, KOS-92
Diameter
0.80 mm ~ 7.5 mm
Surface
W1, 1/8H, 1/4H, FH
Strength
Br,
Packing
Coil( 12 inch ~ 32 inch), Carrier( 24 inch ~ 32 inch), Straightness(2.0 ~ 2.5 Meter)
Standard
Buyer’s Specification
Since stainless general purpose wire requires advanced processing technique in various applications, meeting customers’ tensile strength, elongation and surface brightness is must for manufacturing the highest quality product.
Applications
Wire Belt / Bearing Ball / Glasses Frame / Spoke Wire / System Plug / Mesh Belt / Reed / Gauge Wire / Dye Spring / Forming / Hanger for Coating / Stapler / Watch Band / Oil Well Screen / Scrubber / Fishing Hook / Kitchenware / Insert Thread / Acupuncture needle / Brush / Vinyard Wire / Redrawing / Washer
Grade
201, 201Cu, 204Cu, 304L, 304H, 304M, 310S, 314, 316, 316L, 420J2, 430, 434A
Diameter
0.40 mm ~ 7.0 mm
Surface
W1, 1/8H, 1/4H, 1/2H, 3/4H, FH
Strength
Br,
Packing
Coil( 8 inch ~ 24 inch), Carrier( 16 inch ~ 32 inch)
Standard
ASTM A580, BS 1554, JIS G4309, DIN 671, JIS G4308, KS D3703
Mainly used for torsion springs and medical uses, straightened wires' core character is uniformed straightness in its full length.
KOS produces the wires by annealing process in the clean,separate atmosphere.
Applications
Torsion Spring / Lancet(Blood Glucose Tester) / Acupuncture needle
Grade
302, 304, 304N1(Non-magnetic )
Diameter
0.18 mm ~ 0.70 mm
Surface
WPDS, WPBS
Strength
Br
Packing
Coil (6 inch ~ 10 inch), Spool ( BP25 )
Standard
JIS G4314
