The price of H13 steel ceramic coating typically ranges from 800 to 3000 yuan per piece. The specific cost depends on the mold size, coating process type, coating materials, and processing complexity. For standard die-casting mold cores, plasma spraying (APS) costs approximately 1000 to 1800 yuan per piece, while high-speed flame spraying (HVOF) generally costs over 2000 yuan due to higher equipment and material costs.
I. Detailed Explanation of Price Influencing Factors
1. Coating Process Types
|
Process |
Reference Price per Item (RMB) |
Features |
|
APS (Aplasma Spraying) |
800–1800 |
Low cost, suitable for large-area protection, but with high porosity |
|
HVOF (High-Speed Flame Spraying) |
2000–3000 |
High density, strong adhesion, longer lifespan, suitable for critical components |
|
PVD (Physical Vapor Deposition) |
1500–2500 |
Ultra-thin (2–5μm), high precision, suitable for precision plastic molds, but with weaker impact resistance |
Recommended Cost-Effectiveness: APS is used for conventional die-casting molds, HVOF is used for high-value, long-cycle production line molds
2. Coating Material Selection
Al₂O₃-TiO₂: A common composite ceramic, wear-resistant, anti-adhesive, and moderately priced.
Cr₃C₂-NiCr: Excellent resistance to high-temperature oxidation and thermal fatigue, mostly used in hot forging dies, with a slightly higher cost.
WC-Co: Extremely high hardness and the best wear resistance, but expensive, suitable for extreme working conditions.
Example: For an H13 steel die-casting mold core (Φ80mm×120mm) coated with Al₂O₃-TiO₂, the APS process costs 1200 yuan/piece; if HVOF-WC-Co is used instead, the price rises to 2600 yuan/piece.
3. Mold Size and Complexity
Small Inserts (<50mm): 800–1200 RMB
Medium Mold Cores (50–150mm): 1200–2000 RMB
Large Molds or Irregular Structures: Custom pricing required, may exceed 3000 RMB
II. Cost-Benefit Analysis: Is the Coating Worth It?
Project: Uncoated H13 Mold vs. Ceramic Coated H13 Mold
Initial Cost: Low (No additional treatment) +800-3000 RMB
Average Lifespan: 3,000 cycles vs. 7,000-10,000 cycles
Replacement Frequency: High vs. Reduced by over 60%
Downtime Losses: Frequent vs. Significantly Reduced
Overall Cost/Cycles: Higher vs. Reduced by over 40%
Case Study: After adopting HVOF-Cr₃C₂-NiCr coating, an automotive parts factory increased its mold lifespan from 3,200 cycles to 9,800 cycles, reduced the unit production cost by 0.37 RMB, and saved over 450,000 RMB annually.
