Modle RTSA-Cr-75 RTSA-Cr-85 RTSA-Cr-90 RTSA-Cr-95 Cr2O3 % ≥ 75 85 90 95 Cr2O3+Al2O3+ ZrO2% ≥ 98 98 98 98 98 SiO2 % ≥ 0.2 0.2 0.2 0.2 0.2 Fe2O3 % ≤ 0.3 0.3 0.3 0.3 K2O+Na2O % ≤ 0.2 0.2 0.2 0.2 0.2 Bulk density g/m3 ≥ 3.9 4.20 4.22 4.25 Apparent porosity % ≤ 18 18 16 16 Compressive strength Mpa ≥ 120 120 120 120 120 Load softening temperature (0.2Mpa,0.6%),℃ ≥ 1680 1680 1680 1680 Reburning line change (1600℃×3h), % ±0.3 ±0.3 ±0.3 ±0.3

Modle RTSA-1.2 RTSA-1.0 RTSA-0.8L RTSA-0.7L RTSA-0.6L RTSA-0.5L Al2O3 % ≥ 48 48 48 48 48 48 48 48 Fe2O3 % ≤ 2.0 2.0 2.0 2.0 2.0 2.0 2.0 Bulk density g/m3 ≥ 1.2 1.0 0.8 0.7 0.6 0.5 Compressive strength Mpa ≥ 4.5 4.0 3.0 2.5 2.0 1.5 Heating permanent line change ≤ 2% experimental temperature 1400 1400 1400 1350 1350 1250 Thermal conductivity 350℃±25℃ (W/M.K) 0.55 0.50 0.35 0.30 0.25 0.20

RTSA-TB-B1 RTSA-TB-B2 RTSA-TB-Z1 RTSA-TB-Z2 RTSA-TB-J RTSA-TB-G RTSA-TB-D Classification Temperature ° C 1150 1260 1150 1260 1260 1260 1400 The recommended temperature is 900 1000 900 1000 1100 1100 1200 ℃ Bulk weight Kg/m3 220 ~ 260 300 220 ~ 260 300 320 420 300 Crushing strength 0.15 Mpa pressure thick 10% or greater acuity 0.2 or greater acuity 0.2 acuity 0.3 0.4 or 0.3 or 0.15 Bending strength Mpa ≥0.3 ≥0.4 ≥0.3 ≥0.4 ≥0.5 ≥0.9 ≥0.5 Permanent heating line change % Hold for 24h ≤3 (900℃)

RTSA-TT-1 RTSA-TT-2 RTSA-TT-3 RTSA-TT-4 RTSA-TT-5 RTSA-TT-6 RTSA-TT-7 Classification Temperature ° C 1150 1260 1260 1400 1430 1430 1430 The recommended temperature is 900 1000 1100 1200 1350 1350 1250 ℃ Bulk weight Kg/m3 64/96/128/160 Tensile Strength Mpa 128kg/m3 40 50 40 50 Permanent heating line change % Hold for 24h 3 or less (900 ℃) 3 or less (1000 ℃) 3 or less (1100 ℃) 3 or less (1200 ℃) 3 or less (1350 ℃) 3 or less (1350 ℃) 3 or less (1250 ℃)

RTSA-TS-1 RTSA-TS-2 RTSA-TS-3 RTSA-TS-4 RTSA-TS-5 RTSA-TS-6 RTSA-TS-7 Classification Temperature ° C 1150 1260 1260 1400 1430 1430 1430 The recommended temperature is 900 1000 1100 1200 1350 1350 1250 ℃ Fibrotic % Ai2O3 / ≥44 45 ~ 47 ≥53 ≥35 ≥43 ≥47 SiO2 61 to 67 ≥52 ≥52 ≥46 ≥49 ≥52 ≥48 ZrO2 / / / ≥15 / / 4 ~ 5 Cr2O3 / / / / 2.0 ~ 3.8 / CaO 27 ~ 33 / / / / / / MgO 2 to 7 / / Specifications and packaging of the products: packed in 20kg or 80kg.

Modle RTSA-TJ85 RTSA-TJ80 MgO % ≥ 85 80 Al2Ol3 % ≥ 3 3 Fel2Ol3% ≤ 57.5 Siol 2% 1.0 2.0 Apparent porosity % 16 ~ 17 16 ~ 17 Bulk density g/cm3 ≥ 2.95 2.95 Compressive strength at room temperature Mpa ≥ 45 55 0.2Mpa load softening point: ℃ 1680 1650 Thermal shock stability (1100 ℃ water-cooled, secondary) 7 8 Thermal conductivity (1000℃) W/m·k 2.5 2.5

Modle RTSA-CrC-5 RTSA-CrC-12 RTSA-CrC-20 RTSA-CrC-30A RTSA-CrC-30B Cr2O3 % ≥ 5 12 20 30 30 Al2O3+Cr2O3 % ≥ 93 93 93 93 93 / Cr2O3+Al2O3+ZrO2 % ≥ / / / / 93 Fe2O3 % ≤ 0.3 0.3 0.3 0.3 0.3 Bulk density g/m3 ≥ 3.10 3.20 3.40 3.40 3.45 Apparent porosity % ≤ 18 18 18 18 18 18 Compressive strength at room temperature Mpa ≥ 100 100 100 100 100 100 Softening temperature under load (0.2Mpa,0.6%),℃ ≥ 1700 1700 1700 1700 1700 1700 Reburning line change (1600℃×3h), % ±0.3 ±0.3 ±0.3 ±0.3 ±0.3 ±0.3

Modle RTSA-GM6 Al2Ol3 % ≥78 Fe2O3 % ≤1.5 ZrO2%6 Apparent porosity % ≤18 Compressive strength at room temperature Mpa ≥100 Bulk density g/cm3 2.7 0.2Mpa load softening point ° C 1680 Thermal shock stability (1100 ℃ water-cooled, Times) ≥15 Wear resistance coefficient CC ≤4

RTSA-JM-23A RTSA-JM-23 RTSA-JM-26A RTSA-JM-26 RTSA-JM-28 RTSA-JM-30 Classification temperature, ℃ 1100 1260 1350 1430 1540 1650 Normal temperature performance (23℃ relative temperature 50℃) Bulk density g/m3 500 600 800 800 900 1050 Bending strength Mpa 0.7 0.8 1.2 1.5 1.8 2.0 Cold compressive strength Mpa 0.8 1.0 1.8 2.0 2.5 3.0 High temperature performance Permanent heating line change % (24 hours at below temperature) 1070℃ -0.5 / / / / / 1230℃ / -0.2 / / / / 1350℃ / / -0.5 / / /

RTSA-S-90 RTSA-S-80 RTSA-S-70 RTSA-S-60 RTSA-S-40 Long-term use temperature ℃ 1450 1450 1450 1400 1350 SiO2 % 90 80 70 60 40 Al2O3 ////42 Volume density g/m3 ≥ 2.65 2.65 2.60 2.60 2.50 Apparent porosity %≤ 15 16 16 18 18 Compressive strength at room temperature Mpa ≥ 120 100 80 60 60 Reburning line change (1450℃×3h), % ≤0.3 0.5 0.5 0.5 (1400°℃×3h) 0.6 (1400°℃×3h) Thermal shock stability (times) 1100℃ air cooling 30 25 25 20 20 Thermal conductivity W/M.K (average temperature 800℃) 10~12 8~10 6~85

RTSA-NS-1 RTSA-NS-2 RTSA-NS-3 RTSA-NS-4 Water absorption (A) % 0.2≤A≤0.5 0.5≤A≤2 2≤A≤4 4≤A≤5 Flexural strength Mpa ≥ 58.8 39.2 29.4 19.6 Acid resistance % ≥ 99.8 99.8 99.8 99.7 Thermal shock stability Temperature difference 100℃ Temperature difference 130℃ Temperature difference 100℃ Temperature difference 150℃ After one test, the sample shall not have cracks, peeling and other damage

RTSA-Cr-90 RTSA-Cr-95 Long-term use temperature ℃ 1800 1650 Al2O3 % ≥ 98 88 SiO2 % ≥ 0.3 / Fe2O3 % ≤ 0.2 0.5 Volume density g/m3 ≥ 1.40～1.80 1.35～1.80 Compressive strength at room temperature Mpa ≥ 10 8 Load softening temperature (0.2Mpa, 0.6%), ℃ ≥ 1700 1650 Reburning linear change (1600℃×3h), % ±0.3 ±0.3 Thermal conductivity W/M.K (average temperature 800℃) 1.0 0.9 Linear expansion coefficient 1300℃ ≥ 8×10 - 6 8×10 - 6