Made at our plant in Zibo. Sizes and shapes can follow your drawing; batch quality and delivery are handled by us.
Five grades from Al₂O₃ 48% to 85%. Refractoriness and load resistance rise with grade — for blast furnace stoves, cement kilns, glass furnaces and more.
SK-32, SK-34 and SK-36. Good thermal shock resistance at a lower cost — for low- and medium-temperature working linings and backup layers.
Non-standard sizes and special positions, made to drawing: kiln doors, burner blocks, peep holes, arch pieces, and precast pieces delivered whole.
Typical values for our standard grades. Tell us the position, temperature and size you need and we confirm the grade and batch values in the quotation.
| Grade | Al₂O₃ (%) | Refractoriness (°C) | RUL T₀.₆ (°C) | Bulk density (g/cm³) | CCS (MPa) | Typical use |
|---|---|---|---|---|---|---|
| LZ-48 | ≥ 48 | ≥ 1770 | ≥ 1420 | 2.30 | ≥ 45 | Medium-temperature working linings |
| LZ-55 | ≥ 55 | ≥ 1790 | ≥ 1450 | 2.40 | ≥ 50 | Reheating and annealing furnaces |
| LZ-65 | ≥ 65 | ≥ 1790 | ≥ 1500 | 2.55 | ≥ 60 | Cement kiln transition zone, glass regenerators |
| LZ-75 | ≥ 75 | ≥ 1790 | ≥ 1520 | 2.65 | ≥ 70 | Hot blast stoves, cement kiln burning zone |
| LZ-85 | ≥ 85 | ≥ 1790 | ≥ 1550 | 2.80 | ≥ 80 | High-temperature linings, special positions |
Tested per GB/T 2988. Batch values are given in the test report (COA); third-party inspection can be arranged.
| Grade | Al₂O₃ (%) | Refractoriness (°C) | RUL T₀.₆ (°C) | Bulk density (g/cm³) | CCS (MPa) | Typical use |
|---|---|---|---|---|---|---|
| SK-32 | ≥ 30 | ≥ 1710 | ≥ 1250 | 2.00 | ≥ 20 | Low-temperature linings, flues |
| SK-34 | ≥ 36 | ≥ 1750 | ≥ 1300 | 2.10 | ≥ 25 | Medium-temperature linings, backup layers |
| SK-36 | ≥ 42 | ≥ 1790 | ≥ 1400 | 2.20 | ≥ 35 | Hot blast stoves, reheating furnaces |
Tested per GB/T 2988.
| Type | Material | Processing | Typical position | Delivery |
|---|---|---|---|---|
| Kiln door / burner block | High-alumina shape | Machined to drawing | Furnace doors, burner ports | Loose / assembled |
| Peep hole block | High-alumina shape | Machined to drawing | Observation openings | Loose |
| Arch / wedge brick | High-alumina / fireclay | Pressed in moulds | Roofs, circular structures | Loose / numbered |
| Precast shape | Cast and fired | Cast whole to drawing | Large special pieces | Delivered whole |
Send a CAD file or a dimensioned sketch. The quotation states whether we can make it, any mould cost, the minimum per shape, and the lead time.
Shaped refractories are made at our plant in Zibo, from raw material to packed pallet. Batch quality, production schedule and delivery are under our direct control.
Bauxite, clay and binders batched by grade. Pressed to shape, with density and dimensional tolerance recorded.
Fired to a curve set for each grade. Every batch is tested for Al₂O₃, refractoriness, RUL, bulk density and crushing strength.
Shrink-wrapped on wooden pallets, labelled with grade and batch number. Test report (COA) ships with the goods.
Typical positions and grades for shaped refractories. For a specific project, send the temperature, atmosphere, load and drawing, and we confirm the grade.
We make shaped refractories ourselves. Insulating firebrick, ceramic fiber and other items come from long-term partner producers in Zibo. Items we can supply are quoted line by line, and confirmed items are consolidated for shipment from Qingdao.