An oxygen lance pipe can be used to introduce oxygen or other injected materials into high-temperature industrial processes. In steelmaking, however, the term does not point to one universal product. Daiwa Lance offers five oxygen lance pipe types: Daiwa CA Lance, Thermic Lance, SC Lance, CC Lance, and Aluminum Lance Pipe. If you need an oxygen lance pipe for repeated furnace-side injection work, the main question is which type fits that duty best and when a calorized lance pipe makes the most sense.
In this article, we focus on Daiwa CA Lance within that broader family. At Daiwa Lance, we position Daiwa CA Lance as the heat-resistant option for repeated gas-injection-related service where minimum consumption, higher heat resistance, and better oxidation resistance matter more than self-consuming cutting action.
At a basic level, an oxygen lance pipe introduces oxygen into a process where blowing, refining, heating support, oxidation reactions, or additive injection are required. Depending on the operation, the pipe may deliver oxygen alone or oxygen together with carbon, lime powder, inert gas, or other process media. In other words, the pipe is part of how the furnace process is controlled.
For this reason, it helps to define the application first. If you need a pipe for repeated injection service in severe heat, you should evaluate durability, oxidation resistance, and configuration fit. If you need a product that burns or cuts by consuming itself, another oxygen lance pipe type may be more suitable.
Daiwa’s oxygen lance pipe family includes products with different purposes.
Daiwa SC Lance is a self-consuming oxygen lance pipe used where the pipe itself is consumed during lancing work.
Daiwa CC Lance is a lower-cost ceramic-coated alternative with lower performance than Daiwa CA Lance.
Daiwa Thermic Lance is mainly a burning and cutting product, not a repeated injection pipe.
This classification matters because it keeps the product choice relevant to your process. If your plant needs a pipe for repeated oxygen or additive injection in severe heat, Daiwa CA Lance deserves attention first. If the job is mainly opening, cutting, or melting by consuming the pipe, another product type may fit better.
The answer begins with structure. Daiwa CA Lance starts from mild steel, then receives a heat-resistant calorized layer on the interior and exterior surfaces. A refractory ceramic coating is also applied on the interior and exterior surfaces. This layered structure is why Daiwa CA Lance is positioned as a long-life lance for oxygen steelmaking rather than a standard pipe.
This layered structure is directly related to performance. Daiwa CA Lance lasts 3 to 10 times longer than mild steel lances, while actual consumption still varies with operating conditions. In high-temperature service, the calorized surface forms a protective alumina film, which is one reason Daiwa CA Lance can stay in service longer than bare mild steel pipe.
An electric arc furnace, or EAF, is a steelmaking furnace that melts scrap or direct-reduced iron by using an electric arc as the main heat source. In this environment, oxygen and carbon blowing are important for melting, refining, and process control. Daiwa CA Lance can be used for oxygen and carbon blowing in EAF by both manipulator lancing and manual operation. It can also be used for blowing oxygen to cut steel scrap or refine molten steel in EAF service.
If you operate an EAF, the key question is how hard the environment is on your lance pipe. When bare mild steel pipe is being replaced too often, the total cost includes more than the pipe price alone. It also includes replacement frequency, handling time, interruption risk, and less predictable operation around the furnace. That is why a heat-resistant oxygen lance pipe can make financial sense in severe EAF service.
An induction furnace, or IF, melts metal by electromagnetic induction rather than by electric arc. In steelmaking, Daiwa CA Lance can also be used for oxygen injection in IF operations. In practical IF use, Daiwa CA Lance is mainly used for oxygen blowing to adjust carbon so the plant can produce the steel grade it wants.
The selection logic is similar to EAF use. If IF operation exposes the pipe to repeated heat, aggressive atmosphere, and fast wear, Daiwa CA Lance is more relevant than bare mild steel. If the duty is lighter and replacement is already acceptable, the need for a more advanced heat-resistant pipe may be lower. That is why the furnace type and the exact process role should always come before quotation.
You may also see oxygen lance pipe discussed in relation to blast furnace, or BF, work—and Daiwa CA Lance can be used in this environment as well. Although BF is primarily an ironmaking process (not the same oxygen-and-carbon adjustment pattern typical of EAF and IF steelmaking), the operating conditions around the furnace can still be extremely demanding. High temperatures, intense radiant heat, and a harsh atmosphere can shorten the life of standard mild steel pipes, which is why a heat-resistant, oxidation-resistant calorized lance pipe can be a practical choice in BF-related lancing and injection tasks.
In other words, BF shares some of the same “why” drivers seen in EAF and IF: severe heat exposure, rapid oxidation risk, and the need for a more durable lance for repeated furnace-side work. However, because BF has its own process goals and operating practices, we will cover Daiwa CA Lance applications in blast furnaces in a separate dedicated article.
Daiwa CA Lance is not only an oxygen blowing pipe. It can also be used for injection of carbon, lime powder, and other additives used for adjusting steel grades. So if you are searching for terms such as oxygen and carbon injection lance pipe or lime powder injection lance pipe, you are still looking at the same broader application family.
What matters most here is not only nominal size. You should also confirm what material is being injected, how severe the thermal condition is, and whether you need longer lance life, lower oxidation, or lower replacement frequency. That is usually where the right technical conversation starts.
Although this article is centered on EAF and IF, Daiwa CA Lance is used beyond those two furnace types. It can also be used for removing slag inside an oxygen converter, blowing inert gases such as nitrogen or argon into a ladle furnace or smelter, and protecting dipping thermocouples in aluminum, copper, and zinc melting furnaces. These examples show the broader rule: Daiwa CA Lance is selected when the process needs a more durable pipe in a harsh thermal or oxidative environment.
An oxygen lance pipe does not work in isolation. You should review oxygen setup, pressure stability, pipe size, length, end style, connection method, working position, and surrounding furnace conditions. Daiwa CA Lance standard outside diameters range from 1/4" up to 2", with standard lengths of 2,750 mm or 5,500 mm depending on size. The specification range also includes threaded, coupling, and press-coupling configurations.
These points matter because even a strong product can perform poorly if the selected configuration does not fit your equipment and working method. That is why a good quotation should describe the actual size and connection you need, not only the product family name.
Which furnace is involved: EAF, IF,converter, ladle furnace, BF, or another system?
Is the pipe being used for oxygen blowing only, or also for carbon, lime powder, inert gas, or other additive injection?
What operating problem are you trying to solve: rapid consumption, oxidation, unstable service life, or frequent replacement?
What outside diameter, thickness, standard length, and end configuration fit the equipment already in use?
Which supporting documents do you need for review, such as catalogue, specification sheet, or mill test certificate?
The clearer these questions are at the beginning, the easier it becomes for us to recommend the right oxygen lance pipe for your application.
What is an oxygen lance pipe used for?
In steelmaking, it is used to introduce oxygen and sometimes other process media into high-temperature operations such as EAF, IF, converter service, or related furnace-side applications.
When should you use a calorized lance pipe?
Usually when your process requires a more heat-resistant and oxidation-resistant pipe for repeated injection work rather than a self-consuming cutting or lancing product.
Is oxygen lance pipe the same as thermic lance?
Yes. Thermic Lance is also called oxygen lance pipe, but it is mainly used for burning and cutting, while Daiwa CA Lance is used for repeated injection work.
Can the same lance concept be used for carbon or lime powder injection?
Yes. Daiwa CA Lance can be used for oxygen and carbon injection as well as lime powder and other additives in steelmaking.
Why is application detail important before quotation?
Because furnace type, process role, oxygen setup, size, and connection fit all affect which oxygen lance pipe should be recommended.
Oxygen Lance Pipe glossary page: https://www.daiwalance.com.vn/glossary/oxygen-lance-pipe
Daiwa CA Lance product page: https://www.daiwalance.com.vn/en/products/daiwa-ca-lance
Understand All About Daiwa Calorized Lance Pipes in 5 Minutes: https://www.daiwalance.com.vn/blog/understand-all-about-calorized-lance-pipes-in-5-minutes
The Complete Buyer's Guide to Daiwa Lance Products: https://www.daiwalance.com.vn/blog/the-complete-buyers-guide-to-daiwa-lance-products
Catalogue page: https://www.daiwalance.com.vn/en/resource/daiwa-lance-catalogue
Contact page: https://www.daiwalance.com.vn/en/contact
For application review, please share the furnace type, injection purpose, current pipe issue, preferred dimensions, and document requirements. Based on that information, we can help you confirm whether Daiwa CA Lance is suitable for the operation and provide the relevant product documents for evaluation.
Established since 1997, Daiwa Lance has positioned ourselves as a pioneer in thermic cutting and oxygen lancing technology. Based in Ho Chi Minh City, Vietnam, we have been providing quality customer service and products with advanced Japanese technology.
We maintain the highest quality standards with ISO 9001:2015, ISO 14001:2015, and JIS G standards certifications. We have also expanded our reach globally, exporting to over 55 countries worldwide.
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