New type of Steel Ladle CastablesA new type of ladle castable has been developed to address the current situation of steel ladle used in the foundry industry. Using high-grade magnesium aluminum spinel as the main raw material, without cement ultrafine powder coagulation and bonding. Compared with traditional high alumina bricks, aluminum carbon bricks, and magnesium carbon bricks, the overall performance of the ladle lining is better and the service life is longer (can be increased by 3-4 times). The good erosion resistance reduces the molten impurities in the molten steel, improves the purity of the molten steel, and significantly improves the casting yield.
1.High thermodynamic strength and excellent high-temperature wear resistance.
2.Good chemical corrosion resistance to molten slag.
3.Excellent thermal shock stability.
Good high-temperature volume stability.
4.No emission of harmful gases during use, environmentally friendly.
5.Non-stick slag, easy to disintegrate.
1.During use, if cracks or partial scouring of the lining material are found, the steel package repair material should be used for repair in time.
2.Slag adhering to the lining material should be cleaned promptly to prevent excessive slag accumulation from damaging the lining due to strong impact.
3.It is strictly forbidden to flush with water during slag cleaning, as this can damage the lining material.
4.When the steel package lining material reaches its safe thickness (35%-40% of the construction thickness), it should be stopped immediately and replaced with a new one.
|
Model |
Index |
|
|
Main Chemical Composition（%） |
AI2O3 |
≥75 |
|
Mg0 |
≤15 |
|
|
Bulk Density（g/cm3） |
110℃×24h |
≥2.65 |
|
1500℃×3h |
≥2.75 |
|
|
Room Temperature Flexural Strength（Mpa) |
110℃×24h |
≥4.5 |
|
1500℃×3h |
≥9.5 |
|
|
Flexural strength（Mpa) |
110℃×24h |
≥40 |
|
1500℃×3h |
≥55 |
|
|
Linear Change on Reheating（Mpa) |
110℃×24h |
±0.05 |
|
1500℃×3h |
±0.08 |
|
Highland Refractory classifies the New type of Steel Ladle Castables based on functional optimization and application zones in steel ladles to meet modern metallurgical demands, including Low-Carbon New type of Steel Ladle Castables (carbon content ≤0.5%, ideal for ladles used in ultra-low-carbon steel production to avoid steel contamination) and High-Thermal-Shock New type of Steel Ladle Castables (added with special fiber additives, suitable for ladles with frequent heating-cooling cycles like continuous casting tundishes). There is also Lightweight High-Strength New type of Steel Ladle Castables (bulk density ≤2.6g/cm³), designed for ladle working linings to reduce overall ladle weight while maintaining compressive strength ≥180MPa at 1400℃. Each type of New type of Steel Ladle Castables is formulated with high-purity aggregates (fused corundum, spinel) and advanced binders, enabling on-site casting into integral linings that adapt to the harsh conditions of steel ladles, such as molten steel erosion and high-temperature sintering.
Highland’s New type of Steel Ladle Castables stands out in modern steel production with core strengths: it exhibits superior corrosion resistance to molten steel and alkaline slag, extending the service life of ladle linings by 40-60% compared to traditional castables—greatly reducing ladle maintenance frequency and production downtime; it features excellent high-temperature mechanical strength, with minimal linear shrinkage (<0.8%) after long-term use at 1600℃, avoiding structural cracks caused by thermal stress; it also supports environmentally friendly production, as the low-carbon variant reduces carbon pickup in steel, meeting strict quality standards for high-grade steel products, and the lightweight design lowers energy consumption during ladle transportation. These advantages make the New type of Steel Ladle Castables a key material for improving efficiency and sustainability in steelmaking.
The New type of Steel Ladle Castables is primarily applied in the metallurgical industry, with targeted uses in steel production processes: it serves as the working lining of primary steel ladles, enduring direct contact with molten steel (1500-1600℃) and resisting slag erosion to ensure stable steel quality; it is used for the lining of secondary refining ladles (such as LF ladles), where its low-carbon property prevents alloying element contamination during steel purification; it also lines ladle slag lines and impact zones—high-wear areas where its high strength and corrosion resistance protect against molten slag scouring and mechanical impact. Additionally, in non-ferrous metal smelting, a modified version of the New type of Steel Ladle Castables is used for copper or aluminum melting ladles, adapting to the specific corrosion characteristics of non-ferrous molten metals. Each application leverages the New type of Steel Ladle Castables’ ability to withstand extreme metallurgical conditions.
The New type of Steel Ladle Castables (Highland) excels as a structural refractory for direct contact with molten metals, with its high-temperature strength, corrosion resistance, and integral casting design making it ideal for forming ladle working linings—where structural integrity and resistance to molten steel/slag erosion are critical for ensuring production safety and steel quality. Insulating Coating, by contrast, specializes in non-contact thermal insulation for equipment exteriors (e.g., boiler pipelines, ladle outer walls), with a focus on reducing heat loss and saving energy through a thin, lightweight layer that prioritizes thermal insulation efficiency over direct high-temperature erosion resistance. Each product serves distinct roles: the New type of Steel Ladle Castables dominates internal structural protection for molten metal-handling equipment, while Insulating Coating leads in external energy-saving insulation for diverse industrial structures.
Highland Refractory is a trusted producer of high-quality New type of Steel Ladle Castables, backed by 30+ years of refractory expertise and deep collaboration with leading steel manufacturers—we source high-purity, low-impurity aggregates (fused corundum, high-purity spinel) and adopt advanced low-carbon mixing technologies to ensure the New type of Steel Ladle Castables meets strict metallurgical standards; every batch undergoes rigorous testing, including slag resistance tests, high-temperature compression strength checks, and carbon content analysis, complying with ISO 9001/CE certifications. With an annual production capacity of 60,000 tons and services for 1,500+ clients across Asia, Africa, Europe, and Australia, we also tailor formulations (e.g., adjusting spinel content for specific slag types or optimizing carbon content for ultra-low-carbon steel) to match customer production needs, ensuring reliable performance of the New type of Steel Ladle Castables.
Choosing Highland Refractory for your New type of Steel Ladle Castables needs means accessing tailored excellence and end-to-end support: we offer customization (adjusting chemical composition, strength, and carbon content to fit your ladle type and steel grade—e.g., low-carbon variants for high-grade steel or high-spinel variants for alkaline slag), fast delivery (3–7 days for standard types in stock, 10–15 days for custom formulations), and bulk discounts (5–10% off orders ≥10 tons). We also provide free samples, detailed technical data sheets (including casting parameters and curing guidelines), and 24/7 on-site technical support (advising on lining installation and maintenance), ensuring your New type of Steel Ladle Castables integrates seamlessly into steelmaking processes and delivers long-term efficiency gains and cost savings.
Used for insulation and heat preservation of the ladle walls in the operation of cast iron...
A new type of ladle castable has been developed to address the current situation of steel ladle...
Sand mold sprue of cast steel and cast iron, sprue of molten mold casting, appearance...
