Daiwa SC Lance

What We Can Offer?
Oil and Grease-Free Oxygen Lance Pipe

Daiwa SC Lance is a self-consuming oxygen lance pipe manufactured from mild steel and high-frequency welded for consistent seam quality.

Each pipe is finished with an oil-free / grease-free surface treatment to support safer oxygen service at the furnace side. In steel mills, foundries, and smelting plants, it is commonly used for tap hole opening, oxygen lancing, and slag/metal deposit removal where a strong, stable high-temperature flame (over 3,000°C) is needed.

For demanding oxygen service, the design focuses on operator safety, an oil-free/grease-free surface, and high-frequency welded seam quality—key requirements for reliable tapping & cleaning tasks.

* Note : The consumption rate of Daiwa SC Lance varies widely depending on the conditions in which the lance is used.

Technical Specifications
Practical Applications
Advantages
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Technical Specifications

Structure

Daiwa SC Lance is built on a mild steel base pipe with a hollow cross-section designed for stable oxygen flow. As a self-consuming oxygen lancing pipe, it is produced with a clean, controlled surface condition (no oil/grease) and a high-frequency welded seam. Weld integrity is verified by eddy current test (ECT), helping reduce oxygen-leak risks and supporting safer furnace-side tapping and cleaning work.

Size

To match different furnace setups and oxygen lancing needs, Daiwa SC Lance supports practical OD/ID selection across common standard sizes. For tighter working spaces, Daiwa also offers a mini lance pipe option (OD 6–10mm). Thickness can be customized depending on whether operators need a stiffer pipe or a more bendable handling feel, and lengths are supplied to fit on-site tapping and cleaning operations.

Connection Type

Daiwa SC Lance is available with multiple end types such as plain end, threaded end, swaged end, and press coupling end options. Selecting the right connection style can make pipe-to-pipe connection faster and more consistent, improve handling on site, and help lower the risk of oxygen leakage during furnace-side operations.

Practical Applications

Daiwa SC Lance is often used for furnace-side tapping & cleaning operations, including:

Open (Tap holes / Notches):

Open tap holes (including EBT tapping and trash burners (incinerators)) by burning through plug material with a high-temperature oxygen flame.
Open iron notch / slag notch in blast furnace.
Open matte tap hole in copper & non-ferrous smelting furnaces.

Clean & Remove (Slag / Deposits / Nozzles / Build-up):

Clean/remove residual slags and metal deposits inside the oxygen converter or electric arc furnace (EAF).
Clean/remove ladle nozzle and tundish, including metals/slags stuck to mixer car or slag build-up on ingot wall.

Cut (Oxygen lancing):

Cut ferrous materials by oxygen lancing.
Cut steel scraps at the scrapyards.

Advantages

Oil and Grease-Free

After production, any oil and grease residues remaining on the surface of Daiwa SC Lance are all treated with proper surface treatment to prevent fire accidents during oxygen lancing.

Good Welding Seam

Welded by high-frequency welding equipment and verified by Eddy Current Test (ECT), Daiwa SC Lance minimizes the risks of oxygen leakage and enhances mechanical strength.

Safety Secured

Thorough treatment with no oil or grease on the finished surface and good welding seam of Daiwa SC Lance adds extra safety for the operators during the metalmaking production.

FAQ

What is Daiwa SC Lance?

Daiwa SC Lance is a self-consuming oxygen lance pipe (consumable oxygen lancing pipe) made from mild steel. It is designed to generate a strong high-temperature flame for furnace-side work such as tap hole opening and slag/metal deposit removal.

What is Daiwa SC Lance used for?

Typical uses include opening tap holes (including EBT tapping), cleaning residual slags in converters, opening iron/slag notches in blast furnaces, and general tapping & cleaning tasks in steel mills, foundries, and smelting plants. It is not intended for carbon/lime injection or gas transportation.

Why is “oil-free / grease-free” important for an oxygen lance pipe?

For oxygen service, leftover oil/grease on the pipe surface can increase the risk of flare-ups and safety incidents. An oil-free / grease-free oxygen lance pipe supports safer handling during high-oxygen, high-heat furnace-side operations.

How do I choose the right size (OD/ID) for oxygen lancing?

Start from the working condition: required oxygen flow, lance holder/connection fit, and operator handling space. Select the appropriate outside diameter (OD) and wall thickness accordingly. For tight spaces, a mini lance pipe option (OD 6–10mm) may be suitable.

Does consumption rate stay the same in every furnace?

No. As with most consumable oxygen lancing pipes, the consumption rate varies depending on operating conditions such as heat severity, oxygen settings, operator method, and the specific tapping/cleaning task.