JIS H3250 Copper Round Rod - 6m Lengths 20-500mm Dia HVAC &
Plumbing Use
JIS H3250 Copper Round Rods are engineered for HVAC, plumbing, and refrigeration systems demanding high thermal conductivity, corrosion resistance, and long-term durability. Certified to JIS H3250 (C1220) standards, these rods are manufactured from 99.9% phosphorus-deoxidized copper with diameters spanning 20–500mm and fixed 6m lengths, ensuring optimal performance in heat exchangers, piping networks,
and potable water systems.
Key Advantages:
- Superior Thermal Conductivity: 390 W/m·K for efficient heat transfer in condensers and
evaporators.
- Corrosion Resistance: Resists pitting and scaling in chlorinated water (tested per ASTM
D130).
- Antimicrobial Properties: Naturally inhibits bacterial growth (ISO 22196 compliant).
- Custom Diameters: Precision-drawn rods with ±0.1% diameter tolerance for seamless
installations.
- Global Compliance: Meets JIS H3250, ASTM B42, and EN 1057 (R220) for international
projects.
- Eco-Friendly: Lead-free, RoHS/REACH-compliant, and 100% recyclable.
2. Technical Specifications
| Parameter | Details |
|---|
| Material | C1220 Phosphorus-Deoxidized Copper (Cu ≥99.90%, P: 0.015–0.04%, O
≤0.01%) |
| Standards | JIS H3250, ASTM B42, EN 1057 (R220), GB/T 5231 |
| Diameter Range | 20mm–500mm (±0.1% tolerance) |
| Rod Length | 6,000mm (±10mm) |
| Mechanical Properties | Tensile Strength: 200–350 MPa, Hardness: 45–85 HV, Elongation:
25–50% |
| Thermal Conductivity | 390 W/m·K at 20°C |
| Surface Finish | Bright annealed (Ra ≤0.8µm) or polished (Ra ≤0.4µm) |
| Certifications | JIS H3250, ISO 9001:2015, NSF/ANSI 61 (potable water), WRAS
Approval (UK) |
| Key Applications | HVAC heat exchangers, plumbing pipes, refrigeration valves, and
water heaters |
3. Why Import Our JIS H3250 Copper Rods?
Competitive Benefits:
- Cost Savings: 25–35% lower pricing than Japanese domestic suppliers with identical certifications.
- Fast Production: 10-day lead time for custom diameters + bulk sea freight
discounts (FOB terms).
- Quality Assurance: 100% eddy-current testing for defects + hydrostatic pressure
testing (30 bar).
- Custom Solutions: Pre-threaded ends, flared joints, and insulated coatings for
plumbing systems.
- Global Logistics: Pre-stocked in Yokohama, Rotterdam, and Los Angeles ports for
fast regional delivery.
- Technical Support: Free thermal expansion calculations, welding guidelines, and CAD
files.
- Warranty: 10-year corrosion warranty + NSF 61 certification for potable
water systems.
4. HVAC, Plumbing & Industrial Applications
| Industry | Use Cases |
|---|
| HVAC Systems | Condenser coils, chiller tubes, and air handling unit heat
exchangers. |
| Plumbing Networks | Potable water pipes, sewage valves, and desalination plant
fittings. |
| Refrigeration | Refrigerant lines, freezer evaporators, and cold storage unit
tubing. |
| Water Treatment | Reverse osmosis (RO) system connectors, chemical dosing pumps. |
| Industrial Process | Hydraulic lines, compressed air systems, and steam distribution
pipes. |
| Commercial Construction | Hospital plumbing, hotel HVAC systems, and data center cooling
loops. |
| Renewable Energy | Geothermal heat pump circuits and solar thermal collector tubing. |
FAQ
1. Who are we?
Our headquarters is located in Jiangsu, China. Since 2010, we have
sold to the domestic market (30.00%), North America (10.00%), South
America (10.00%), Southeast Asia (10.00%), South Asia (10.00%), and
Africa (5.00%) , Middle East (5.00%), Central America (5.00%),
Northern Europe (5.00%), Oceania (3.00%), Western Europe (3.00%),
Southern Europe (2.00%), Eastern Europe (00.00%), East Asia
(00.00%) . There are approximately 11-50 people in our office in
total.
2. How do we ensure quality?
There are always pre-production samples before mass production;
Always conduct final inspection before shipment;
3. What can you buy from us?
Copper Round Rod, stainless steel pipe, stainless steel coil,
stainless steel strip, wear-resistant plate, galvanized steel plate
4. Why should you buy from us instead of other suppliers?
The company introduces advanced technology and equipment, and its
products are exported to Western countries such as the United
Kingdom and the United States. It has strong technical force and
experienced technical and management personnel.
5. What services can we provide?
Accepted delivery terms: FOB, CFR, CIF, EXW;
Accepted payment currencies: USD;
Accepted payment methods: T/T, L/C, cash;
Languages spoken: English, Chinese
