Unshaped Refractories / Plastic Refractories
HA-70 Plastic Plastic Refractories
HA-70 Plastic is the 68-72% Al₂O₃ grade in Shanker Agencies’ plastic refractories range, rated for continuous service to 1700°C. In India it is also written AL-70 Plastic or 70% alumina.
HA-70 Plastic technical specification
Typical values for HA-70 Plastic plastic refractories. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | HA-70 Plastic |
|---|---|
| Al₂O₃ content | 68-72% |
| Bulk density | 2.5 g/cc |
| Cold crushing strength | 50 MPa |
| Max service temperature | 1700°C |
Grade designations and equivalents
How HA-70 Plastic is referenced across Indian and export naming conventions.
| SAPL grade code | HA-70 Plastic |
| Alumina content | 68-72% Al₂O₃ |
| Max service temperature | 1700°C |
Where HA-70 Plastic is used
Full plastic refractories range
Compare HA-70 Plastic against every grade SAPL stocks in this family.
| Grade | Al₂O₃ content | Bulk density | Cold crushing strength | Max service temperature |
|---|---|---|---|---|
| Clay Plastic | 42-48% | 2.2 g/cc | 30 MPa | 1400°C |
| HA-70 Plastic | 68-72% | 2.5 g/cc | 50 MPa | 1700°C |
| HA-80 Plastic | 78-82% | 2.7 g/cc | 70 MPa | 1800°C |
Installation notes
- 1Supplied ready to use, do not add water to phosphate-bonded grades
- 2Ram in 25–50 mm layers with a pneumatic rammer; key into anchors for vertical/overhead work
- 3Cut vent holes for moisture/volatile escape before heat-up
- 4Controlled dry-out: 30°C/hr to 350°C with holds; phosphate bond develops strength on first firing
Disclaimer: values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.