Furnace Grate Bar Specification Table
|
Parameter |
Content |
|
Standard Condition Material |
ZG35Cr24Ni7SiN; Long-term ≤1000°C |
|
High-temperature Flue Material |
ZG40Cr25Ni20Si2; Long-term ≤1100°C |
|
Hardness Range |
HB 190~250 |
|
Side Bending Requirement |
Longitudinal side bending ≤ 0.25mm/m |
|
Casting Defects |
No cold shuts or cracks |
|
Performance Requirement |
Oxidation resistance; No twisting or breaking under long-term high temperature |
Support with Gas Flow Passage
This product is an important part of the reheating furnace bottom. It supports steel billets and allows flame and hot gas to pass through. We use heat-resistant alloy material for this product. We offer two material solutions based on service temperature. The first is for standard conditions. Service temperature does not exceed 1000°C. Material is ZG35Cr24Ni7SiN. This material offers good cost-effectiveness. The second is for high-temperature flue conditions. Service temperature does not exceed 1100°C. Material is ZG40Cr25Ni20Si2. This material gives better heat resistance. Our factory has precision casting capabilities. We strictly control casting quality for every grate bar. The Furnace Grate Bar is engineered for furnace bottom service.
Hardness and Straightness Requirements
Hardness for this product is controlled at HB 190 to 250. This hardness gives enough wear resistance. Longitudinal side bending is controlled within 0.25mm per meter. Straightness control ensures grate bar flatness on the furnace bottom. We strictly control casting process parameters. We ensure no cold shuts or cracks. Cold shuts and cracks cause grate bar breakage during use. Every Furnace Grate Bar meets these quality standards.
Oxidation Resistance and Performance
This product needs excellent oxidation resistance. It must stay intact at high temperature for long periods. It must not twist or break. We ensure oxidation resistance through proper alloy composition design. This product has been used in high-temperature flue environments for long periods. Users report excellent oxidation resistance. We have mature experience in heat-resistant alloy casting. Our products have stable and reliable quality. The Furnace Grate Bar delivers consistent furnace performance.
Custom Manufacturing and Support
We custom-make this product based on customer needs. We machine various specifications per customer drawings. Our technical team provides selection advice. We ensure grate bars perfectly match furnace base installation dimensions. Choose our Furnace Grate Bar for reliable furnace bottom support.
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