Firing-Free Ramming Mixes for Iron Runner
Application Industry: Refractories for Steel Industry
Application Equipment: Blast Furnace Iron Runner and Slag Trough
Size: Custom formulations and grain size per Iron Runner design (free engineering on request)
Products Overview
Our Firing-Free Ramming Mixes for Iron Runner are ramming refractory compounds manufactured from corundum, high-quality bauxite, and silicon carbide, bonded by resins and tar. The product family is engineered to be installed by ramming and does not require baking after installation, allowing the Iron Runner to be put into service directly. The result is an Iron Runner lining with good slag erosion resistance, excellent thermal shock resistance, and easy installation.
The Firing-Free Ramming Mixes for Iron Runner product family is offered in three TGD grades (CH-TGD-50, CH-TGD-55, and CH-TGD-65) covering an Al2O3 content range of 50% to 65% and a silicon-carbide-plus-carbon content range of 15% to 20%. The CH-TGD-50 grade is optimized for small-size blast furnace slag troughs. The CH-TGD-55 grade targets small to medium-size blast furnace Iron Runners. The CH-TGD-65 grade delivers the highest alumina content for medium-size to larger blast furnace Iron Runners.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Firing-Free Ramming Mixes for Iron Runner is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from corundum, high-quality bauxite, and silicon carbide bonded by resins and tar
- Pre-firing free: the installed lining does not require baking and can be put into direct service
- Engineering-proven good slag erosion resistance and excellent thermal shock resistance in the harsh Iron Runner environment
- Suitable for the installation and repair of blast furnace iron runners under 1000m³ hearth volume
- Three TGD grades cover a wide alumina and silicon-carbide content range for different Iron Runner designs
Product Specification
Standard formulation is engineered per buyer’s Iron Runner design and slag-trough geometry. Custom grain size optimization available on request.
| Items | Brands | ||
|---|---|---|---|
| CH-TGD-50 | CH-TGD-55 | CH-TGD-65 | |
| Al2O3 content ≥ (%) | 50 | 55 | 65 |
| SiC + C content ≥ (%) | 20 | 15 | 15 |
| Bulk Density (200 °C × 24h) ≥ (g/cm³) | 2.3 | 2.4 | 2.5 |
| Cold Crushing Strength (200 °C × 24h) ≥ (MPa) | 8 | 10 | 15 |
| Cold Crushing Strength (1450 °C × 3h) ≥ (MPa) | 8 | 10 | 15 |
| Modulus of Rupture (200 °C × 24h) ≥ (MPa) | 3 | 4 | 5 |
| Modulus of Rupture (1450 °C × 3h) ≥ (MPa) | 3 | 4 | 3 |
| Permanent Linear Change (1450 °C × 3h) (%) | ±1.0 | ±0.8 | ±0.8 |
| Application | Slag trough of small-size blast furnace | Iron runner of small to medium-size blast furnace | Iron runner of medium to large-size blast furnace |
Note: Cold Crushing Strength and Modulus of Rupture are measured at two test temperatures: 200 °C for 24 hours and 1450 °C for 3 hours. For project-specific chemistry, contact CH Refractories engineering.
Product Applications
Firing-Free Ramming Mixes for Iron Runner are ramming refractory compounds manufactured from corundum, high-quality bauxite, and silicon carbide bonded by resins and tar, engineered for the steel industry iron runner and slag trough applications in blast furnace installation and repair. The product is characterized by pre-firing free installation, good slag erosion resistance, and excellent thermal shock resistance, allowing quick Iron Runner turnaround in blast furnace operations.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Blast Furnace Iron Runner and Slag Trough of small to medium-size Blast Furnaces.
Specific Application Zones: The CH-TGD-50 grade is optimized for the slag trough of small-size blast furnaces. The CH-TGD-55 grade targets the iron runner of small to medium-size blast furnaces. The CH-TGD-65 grade delivers the highest alumina content for the iron runner of medium-size blast furnaces. All three grades are installed by ramming and do not require baking after installation, allowing the iron runner to be put into service directly for blast furnaces under 1000m³ hearth volume.
CH Refractories is a Firing-Free Ramming Mixes manufacturer in China, Henan, Zhengzhou. The complete Firing-Free Ramming Mixes for Iron Runner product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for the Steel Industry customers across the global iron and steel value chain.
