What is a precision oxygen-free copper processing?

What is a precision oxygen-free copper processing?

Oxygen-Free Copper, abbreviated as OFC, generally refers to Copper with a 99.995% purity.

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COMPANY CULTURES: VISION:We aim to become a global high-end precision hardware cold extrusion service provider and can continue to contribute unique value, worthy of long-term trust as partners in China. MISSION:We focus on and deeply cultivate the precision cold extrusion field to solve the difficulties and pain points of the industry and customers as our mission. Also we continue to innovate, join the global high-end manufacturing industry chains, and promote high-quality "Made in China" hardware to the world VALUES: *Quality first *supreme service *honest and pragmatic *customer satisfaction

We focus on the leader in precision cold extrusion process and solutions to reduce manufacturing costs

STANDARD METAL, we are professional solutions provider who focus on hardware consecutive precision cold extrusion technology to solve the industry problems of high cost, low efficiency, difficult processing of high-tech hardware manufacturing.

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Technical Features: 1). High precision molding, fast speed, parts tolerance can be tested within +/ -0.02mm. 2). One time molding without other supporting process. 3). Truly optimize the cost, applicable to Invar, Kovar, copper, iron, nickel, aluminum, stainless steel and other raw materials which are malleable under HV220 hardness degrees can be completed into extrusion molding. STD really solves the angle collapse problems in cold pier and stamping process

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STANDARD METAL has a number of independent intellectual property rights included 12 domestic and international invention patents.

We mainly focus on optical communication, car automotive sensors, industrial automation, precision medical equipments, aviation industrial automatic control hardware, military packaging hardware, consumer electronics hardware and other applications. STD is using high-technology, unique innovation and modern process management to provide highly competitive products and offer professional services to meet customer needs.

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Introduction to Precision Oxygen-Free Copper Processing

The oxygen-free copper often shaped in oxygen-free copper plate, oxygen-free copper strip, oxygen-free copper wires and so on. It includes linear crystalline oxygen-free copper or crystalline oxygen-free copper (LC-OFC) with purity above 99.995% and single oxygen-free crystal copper (OCC) with purity above 99.996%,

which can be further divided into PC-OCC and UP-OCC, etc. Single crystal oxygen-free Copper produced by UP-OCC technology (Ultra Pure Copper by Continuous Casting Process) has no direction, high purity, corrosion resistance and extremely low electrical impedance, making the copper wire suitable for high-speed and high-quality signal transmission.

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The product is miniature, the size of 1 cubic millimeter hardware structure can be produced.


Good reputation! Fine workmanship in line with buyer's specifications, delivery on time.


High precision of products, tolerance ±0.02mm can be guaranteed.


Fast delivery speed, daily output of more than 200,000P.

Frequently Asked Question

Do you have any question?

The copper refining process is conducted in an atmosphere lacking oxygen. This could be a vacuum, an inert atmosphere or a reducing environment. Is 100% oxygen-free copper possible? Almost but not quite. It’s possible to achieve extremely pure copper, which qualifies it to be called oxygen-free high conductivity copper (OFHC).

Conductivity and power dissipation are the two most important characteristics of oxygen-free copper (or simply Etp). The higher the purity, the lower the conductivity, but the higher the power dissipation also.

Despite what some manufacturers claim, Oxygen Free Copper (OFC) won’t improve your sound quality at least not over any other type of wire capable of transferring the same amount of current.

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