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Billet crystallizer copper tubes support high-speed casting of construction rebar, wire rod, and engineering steel billets in multi-strand casters. They handle demanding conditions to minimize breakouts and enable long sequences. Steel plants use them for efficient production of downstream rolled products.
Billet crystallizer copper tubes feature lengths of 800-1000 mm, wall thicknesses 10-20 mm, and materials like Cu-DHP or Cu-Ag alloys with thermal conductivity >340 W/mK. Designs include single/continuous tapers, chrome plating, and optimized water jackets for speeds up to 4 m/min. Custom radii match caster geometry.
Billet crystallizers offer superior heat extraction for faster speeds, thicker shells, and fewer cracks, doubling steel throughput per tube (up to 6000+ tons). Enhanced alloys resist softening, extending life and cutting costs. Ideal for mini-mills and integrated plants producing quality billets.
| Attribute | Parameter | Description |
|---|---|---|
| Product Name | Billet Crystallizer Copper Tube | Copper mould tube used in billet crystallizers for continuous casting of steel billets. |
| Application | CCM billet casting | Initial solidification of molten steel into square or round billets in continuous casting machines. |
| Copper Grade | Cu-DHP / Cu-Ag / Cu-Cr-Zr | Cu-DHP for small billets ≤160x160 mm; Cu-Ag or Cu-Cr-Zr for larger sections. |
| Cross-section Shapes | Square / Round | Square billets 60x60–700x700 mm; round billets Φ80–Φ1320 mm. |
| Size Range (Square) | 60x60–700x700 mm | Full range covering small to large billet production requirements. |
| Size Range (Round) | Φ80–Φ1320 mm | Supports various round billet diameters for diverse steel products. |
| Length | 602–1100 mm (up to 2000 mm) | Custom lengths matching CCM arc radii like R4000 or R6000. |
| Wall Thickness | 6–50 mm | Optimized for heat transfer efficiency and mechanical strength. |
| Taper Design | Single / multi / parabolic / diamond | Ensures uniform shell thickness and minimizes casting defects. |
| Coating | Ni-Co-Cr / Hard chrome | Wear-resistant plating extends service life under high thermal loads. |
| Thermal Conductivity | ≥390 W/m·K | High conductivity enables rapid heat extraction for high-speed casting. |
| Surface Finish | Mirror polish, Ra ≤0.1 μm | Reduces friction and improves billet surface quality. |
| Hardness (Coated) | HRC 40–50+ | Enhances durability against abrasion and thermal cycling. |
| Dimensional Tolerance | Wall ±0.1 mm; ovality ≤0.2% | Precision machining for consistent performance in billet casters. |
| Cooling Method | Water-cooled walls | Direct water cooling supports efficient solidification of billets. |
| Service Life | 500–1000 heats | Achieved through premium alloys, coatings, and quality control. |
| Quality Standards | OEM / ISO 9001 | Manufactured to customer specifications with full inspection. |
| Typical Industries | Steel billet casters | Used in production of billets for rolling mills and downstream processing. |
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