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| Categories | Cemented Carbide Tool |
|---|---|
| Brand Name: | Sanxin |
| Model Number: | SX1405 |
| Certification: | ISO9001 |
| Place of Origin: | Zhuzhou,China |
| MOQ: | 4 |
| Payment Terms: | L/C,T/T,Western Union |
| Delivery Time: | 5-25days |
| Industry: | Air Conditioning Production Line |
| Density: | 15.63 g/cm3 |
| Compressive Strength: | 3,500 MPa |
| Chemical Inertness: | High |
| Advantage: | High Strength |
| Chemical Resistance: | Resistant to most acids and alkalis |
| Lifespa: | Long |
| Carbide Processing: | High Durability |
| Surface Finish: | Smooth, Shiny, Mirror polishing |
| Company Info. |
| Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
G2 Super Hard Tungsten Steel Air Conditioning Expansion Joint for Refrigeration Industry
The expansion head is made of G2 tungsten steel with an optimized taper angle design of 92HRA body hardness + 20°, breaking through the bottlenecks of copper sticking and edge chipping of high-speed steel, and achieving precision expansion with zero scrap rate in the processing of air-conditioning refrigerant pipes.
Specification:
| Parameters | Standard Values | Ultimate Accuracy |
| Applicable Tube Diameters | φ4.76-φ25.4mm | Microtubes φ3.18mm |
| Cone Angle Ranges | 37°/45°/60° | ±0.02° |
| Surface Roughness | Ra 0.1μm | White Light Interferometer Certification |
| Hardness Uniformity | 92±0.5HRA | Fully Rockwell Hardness Tester Tested |
Note: The above data is for reference only, please consult for customization;
Application:
Household Air Conditioning Production Line
- Evaporator U-tube flaring (taper 37° ± 0.5°)
- Compressor intake and exhaust pipes (sealing surface processing
to prevent refrigerant leakage)
Central Air Conditioning System
- φ25.4mm large-diameter pipe expansion tube (axial thrust ≤ 8kN)
- Branch pipe Y-joint (multi-angle simultaneous flaring)
Specialty Refrigeration Equipment
- Refrigerated truck aluminum-copper composite pipe (anti-metal
adhesion)
- Marine air conditioning corrosion-resistant pipe (316L stainless
steel flaring)

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