GB/T 34218-2017 in English
SUPERSEDEDRefractory products--Determination of compressive strength at elevated temperature
- Issued on:2017-09-07
- Implemented on:2018-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34218-2017耐火材料 高温耐压强度试验方法》由TC193（全国耐火材料标准化技术委员会）归口，TC193SC3（全国耐火材料标准化技术委员会试验方法分会）执行，主管部门为国家标准化管理委员会。
Introduction
Standard Background and Significance
GB/T 34218-2017 "Test Method for High Temperature Compressive Strength of Refractory Materials" is an important national standard formulated for testing the mechanical properties of refractory materials under high temperature conditions. This standard provides a unified technical specification for evaluating the high temperature bearing capacity of refractory materials, which is of great significance for ensuring the safe operation of industrial kilns and high temperature equipment.
Comparison of standard frameworks
| Dimensions | GB/T 34218—2017 | Corresponding clauses of international standard ISO | Differences in industry applications |
|---|---|---|---|
| Test temperature range | Up to 1400°C | Usually not exceeding 1300°C | Adapt to the needs of China's high temperature industry |
| Specimen size requirements | Diameter 50mm±0.5mm, height 50mm±0.5mm | ISO recommends 40mm×40mm | More suitable for large refractory material testing |
| Loading rate | 1.0 MPa/s±0.1 MPa/s | 0.5 MPa/s | Improve test efficiency |
Actual application case
Test of high temperature furnace lining materials in a steel plant
In the test of high temperature furnace lining refractory bricks in a steel plant, the GB/T 34218-2017 standard was used for testing. The specimen was a corundum brick with a diameter of 50mm and a height of 50mm.
- Test temperature: 1350°C
- Heating rate: 5°C/min
- Loading rate: 1.0 MPa/s
- Test results: The average high temperature compressive strength is 85 MPa, which meets the requirements of the steel plant.
Implementation Recommendations
- Equipment Selection:Select high-temperature force devices and temperature measurement systems that meet standard requirements to ensure that the indication error is within ±2%.
- Staff Training:Regularly train test personnel on standard terms and technical operations, especially the use of complex instruments such as micrometers.
- Data Management:Establish a standardized data record and management system to ensure the traceability of test results and meet industry reporting requirements.
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