Function in Vehicle Cooling System
The aluminum radiator header plate locks the flat-oval tubes and seals the coolant chamber against the plastic/aluminum tank. It withstands 0.9–1.2 MPa working pressure and -40 ↔ 150 °C thermal cycles, ensuring leak-free heat rejection for engine, hybrid battery or EV power-module cooling loops.
Quick-Spec Table
1. Alloy: 4343/3003/7072 or 3003-H18
2. Thickness: 1.0 / 1.2 / 1.5 / 2.0 / 2.5 / 3.0 mm
3. Width: 260–1200 mm
4. Rows: 1–12
5. Hole dia: Ø16-32 mm
6. Pitch: 6.0–12.0 mm
7. Brazing: Vacuum / CAB 605-615 °C
8. Finish: Mill / Clear anodized 8-12 µm / Alodine 1500
9. HS Code: 8708911000
Material & Layer Design
1. Aluminum Alloy: 4343/3003/7072
– 4343 (10 %) | Filler metal | Melts 605 °C, creates 0.15 mm fillet
– 3003 (80 %) | Core strength | 140 MPa UTS, corrosion rate <0.025 mm/yr
– 7072 (10 %) | Sacrificial anode | Potential -0.78 V, 1000 h salt-spray protection
2. Optional 3003-H18 bare plate (1.0–3.0 mm) when post-braze coating is applied.
Precision & Surface
1. CNC progressive-die: hole position ±0.05 mm (CpK ≥1.67)
2. Burr ≤0.03 mm, Ra ≤0.6 µm – ready for vacuum or CAB brazing
3. Ø16-32 mm holes, pitch 6.0–12.0 mm, 1–12 rows, width 260–1200 mm
4. Coined O-ring groove 0.4 ±0.02 mm for high-pressure bar-plate designs
Vehicle & Power-Sport Coverage
Aluminum Radiator Header Plate
1. ICE: sedan, SUV, LCV, heavy-truck (Euro VI, EPA 2027)
2. Hybrid: PHEV battery cooling loop (Toyota, Ford, BYD)
3. EV: inverter + motor cooling (Tesla, VW MEB, GM Ultium)
4. Powersport: ATV, UTV, snowmobile, marine inboard engines
Vehicle Aluminum Radiator Header Plate
Precision aluminum radiator header plate for vehicle cooling systems. 4343/3003/7072 clad, 1–3 rows, 260–1200 mm wide, vacuum/CAB brazing ready. For custom specifications or technical consultations, please provide your radiator core drawings or sample plates for rapid quotation. Free Samples. Low MOQ. Factory-Direct Pricing. Affordable Price. Request a Quote Today.
Product SKU: 99999
Product Brand: DAG
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