Products
Contact Us
Telephone:+86 0391-8987988
Mobile:+8613598529809
Mailbox:liyao7979@163.com
Address: North of the next phase of Chengcun, Hongchang Sub-district Office, Boai County, Jiaozuo City, Henan Province
High alumina castable
Key words:
Key words:
High alumina castable
Classification:
- Product Description
-
Scope
This standard specifies the grades, technical requirements, test methods, quality assessment procedures, packaging, marking, transportation, storage and quality certificates of clay and high alumina dense refractory castables.
This standard is applicable to dense refractory castables made of clayey and high alumina raw materials, which are mainly used in industrial furnaces and other thermal equipment.
Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document.
GB/T 3001-Test method for flexural strength of refractories at room temperature
GB/T 5072 Refractories-Test Method for Compressive Strength at Ambient Temperature GB/T 5988 Refractories-Test Method for Change of Permanent Line on Heating-GB/T 6900 Refractories-Chemical Analysis Method
GB/T 7322-Test method for refractories
GB/T 15545 Unshaped Refractories Packaging, Marking, Transportation and Storage GB/T 17617 Refractory Raw Materials and Unshaped Refractories-Sampling
GB/T 21114 Refractories X-ray fluorescence spectrochemical analysis-Fused cast glass sheet YB/T 5200 dense refractory castables-Test method for apparent porosity and bulk density
YB/T 5202.1 monolithic refractories-Preparation of test specimens-Part 1: Castables
Project Indicators NTJ-40 NTJ-45 GLJ-50 GLJ-60 GLJ-65 GLJ-70 GLJ-80 In (Al2O3)/% ≥ 40 45 50 60 65 70 80 Refractoriness/CN ≥ 164 170 170 172 172 172 178 Bulk density/(g/cm3) ≥ 110 ℃× 24h 2.05 2.10 2.15 2.30 2.40 2.45 2.65 Normal temperature flexural strength/MPa ≥ 4.0 4.0 4.0 5.0 6.0 6.0 7.0 Normal temperature compressive strength/Mpa ≥ 25 25 25 30 35 35 40 Change of heating permanent line (test temperature × 3h)/% ± 0.8(1300 ℃) ± 0.8(1350 ℃) ± 0.8(1400 ℃) ± 0.8(1500 ℃)
Product inquiry
