• PHOSPHATE COATED MUSIC WIRE
Music wire is one of the best, toughest, and most widely used materials for small springs. It has one of the highest tensile strengths and can withstand higher stresses under repeated loading than other spring materials. The fatigue life of music wire is excellent.
 
It is not recommended for temperatures below 0o F or above 250o F. Music wire can be easily plated after forming. Gibbs music wire meets the latest revisions of ASTM-A-228. Wire is available in sizes from .005" - .283". Music wire is also available with Zinc, corrostan, and Nickel coatings (See Gibbs Technical Bulletins for Preco Z, Corrostan, and Preco N).

 • TYPE CORROSTAN MUSIC WIRE
Corrostan is an electro-galvanized, zinc coated music wire provided on reels and cores for long continuous production runs. Drawing after plating provides a zinc hard enough to withstand automatic coiling or mechanical forming operations without excessive peeling or flaking. Wire is available in size ranges from .017" - .078".

 • PRECO "Z" MUSIC WIRE
Enhanced corrosion resistance at a more affordable price. That's Suzuki quality PrecoZ, the high-tensile, zinc precoated steel music wire. Wire is available in size ranges from .010" - .142". It offers better corrosion resistance than tinned music wire, and its cost is typically less than stainless.

 • PRECO "N" MUSIC WIRE
Preco "N" is a nickel coated music wire which offers superior consistency and reliability, due to drawing after nickel coating, for such applications as computer keyboard springs, camera springs, battery springs, and cordless telephone antennas. Preco "N" exhibits minimum discoloration during stress relieving because no rust proofing oils are needed. Wire is available in limited size ranges from .015"-.032" and is also available on application.

 • OIL TEMPERED MB SPRING WIRE CLASS I
This is a general purpose, commercial quality, Class I tensile, spring steel wire. With a quality between hard drawn spring wire and music wire, moderately priced OTMB is excellent for springs without servere bends. The material is cold drawn to the desired size and heat treated by a continuous tempering method. A low temperature stress relief is required after processing. Wire is available is size ranges from .023"-.625".

 • OIL TEMPERED MB SPRING WIRE CLASS II
This is a general purpose, commercial quality, Class II tensile, spring steel wire. With a quality between hard drawn spring wire and music wire, moderately priced OTMB is excellent for springs without servere bends. The material is cold drawn to the desired size and heat treated by a continuous tempering method. A low temperature stress relief is required after processing. Wire is available in size ranges from .120"-.625".

 • OIL TEMPERED CARBON VALVE SPRING WIRE
Valve spring wire is one of the highest quality wires available. Tight quality requirements, backed-up with extra eddy current surface inspection, provide wire that meets the demands for exceptional surface quality with no seams and decarburization. Valve quality wire is used for applications such as engine valves, automatic transmissions, fuel injectors, pumps, generators and air compressors. Wire available in size ranges from .041"-.283".

 • OIL TEMPERED CHROMIUM-VANADIUM WIRE COMMERCIAL QUALITY
Chromium-vanadium is the most popular alloy steel for springs that are required to withstand a large number of operating cycles. It is medium carbon steel with chromium and vanadium added to increase its hardness and tensile strength. The pre-tempered material is best for valve or gun springs. Springs can be used at extremely high stresses in applications where they will also be subject to extreme shock and impact loading. For springs of high endurance, the alloy is usually used at a hardness of Rockwell C44-49. Where extreme stresses and short life are expected, the hardness is increased to Rockwell C50-53.
 
In sizes .375" and under, chromium-vanadium alloy springs have no higher endurance limits than plain carbon steels of valve spring quality. However, the alloy springs have less tendency to relax at temperatures as high as 400°F and satisfactory operation can be obtained at temperatures up to 750°F. when loads are not severe, when the stress range is narrow, or when stress changes are infrequent.
 
Recommendations for heat treatment: Immediately after coiling, the springs should be stress relieved at about 400°C. (750°F.) for 30 minutes. After shot peening, the springs should be stress relieved at about 250°C.(480°F.) for 30 minutes.
 
Gibbs oil tempered commercial quality chromium-vanadium meets ASTM-A-231 specification. Wire is available in size ranges from .080"-.625"

 • OIL TEMPERED CHROME VANADIUM - VALVE QUALITY
These materials are designed for springs that must withstand considerable shock and extreme heat. Valve spring quality chrome vanadium has been eddy current tested to assure the finest possible surface in keeping with automotive industry requirements. Wire is available in size ranges from .059"-.362"

 • OIL TEMPERED CHROME SILICON - COMMERCIAL QUALITY
This material is designed for springs that must withstand considerable shock and extreme heat. Chrome silicon can be used at temperatures up to 50° F higher than chrome vanadium. Recommendations for heat treatment: Immediately after coiling, the springs should be stress relieved at about 400°C. (750°F.) for 30 minutes. After shot peening, the springs should be stress relieved at about 250°C.(480°F.) for 30 minutes. Wire is available in size ranges from .018"-.625".

 • OIL TEMPERED CHROME SILICON - VALVE SPRING QUALITY
These materials are designed for springs that must withstand considerable shock and exteme heat. Chrome silicon can be used at temperatures up to 50° F higher than chrome vanadium.

Valve spring quality chrome silicon has been eddy current tested to assure the finest possible surface in keeping with automotive industry requirements. Wire is available in size ranges from .021"-.312"
     
 • HARD DRAWN MB SPRING WIRE CLASS 1
This is a medium carbon, cold drawn spring wire for the production of commercial quality mechanical springs. Gibbs stocks this wire with class I tensile only, Class II tensiles are available on application. Wire is available in size ranges from .008"-.375"

 • GALVANIZED HARD DRAWN MB SPRING WIRE CLASS I
This is a metallic coated medium carbon, cold drawn spring wire for the production of commercial quality mechanical springs and wire forms that are not subject to high stress or require high fatigue properties. Gibbs stocks this wire in size ranges from .041" - .207"