ASTM B111 C44300 Seamless Copper Alloy Tubes Superior Heat Transfer Saltwater Corrosion Resistance for Marine Heat Exchangers Boilers Condensers
Price:
AS PER DETIALS
MOQ:
500KG
Delivery Time:
20-80 days
Brand:
YUHONG
Product Description
ASTM B111 C44300 Seamless Copper Alloy Tubes
Material & Chemical Composition
C44300 (CuZn28Sn1) is a high-performance admiralty brass alloy combining copper, zinc, and tin.
Key Specifications
| Property | Value |
|---|---|
| Tensile Strength | ≥370 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥30% |
| Hardness | 75~110 |
Chemical Composition (%)
| Element | Cu | Zn | Sn | Impurities |
|---|---|---|---|---|
| C68700 | 70.0~73.0% | Bal. | 0.9~1.2% | ≤0.2% (Pb, Fe) |
Manufacturing Process
- Exceptional Thermal Conductivity: 109 W/m*K (3x higher than carbon steel), ideal for rapid heat exchange
- Superior Saltwater Resistance: Withstands marine corrosion and biofouling, perfect for ship condensers and desalination plants
- High-Temperature Stability: Operates reliably up to 250°C
- Seamless Precision: Cold-drawn manufacturing ensures uniform wall thickness (±5%) and leak-free performance
Applications
- Marine Heat Exchangers (Condensers, Coolers)
- Power Plant Boilers & Turbines
- Oil & Gas Refinery Pipelines
- Chemical Processing Equipment
Why Choose YUHONG's C68700 Tubes?
- 55 Production Lines: Guaranteed 12-day lead time for standard sizes
- Anti-Biofouling Design: Arsenic-doped alloy prevents microbial growth in seawater
- Certifications: EN 10204 3.2, KOSHA, and PED 2014/68/EU compliant
FAQ
Q: What are the available sizes?
A: Standard OD: 10mm~100mm | Wall Thickness: 1mm~10mm | Custom lengths (1m~12m) supported.
Q: Do you provide anti-corrosion surface treatment?
A: Yes, optional passivation or tin plating for enhanced protection.
Q: What certifications do your tubes comply with?
A: Full ASTM B111, EN 12451, and ASME SB111 compliance with Mill Test Certificates (MTC).
Why Yuhong Holding Group?
As a trusted partner to clients in 80+ countries, we offer:
- 55 Advanced Production Lines: 20,000㎡ facility with ISO 9001-certified processes
- End-to-End Solutions: From raw material sourcing to precision machining and global logistics
- Competitive Pricing: Bulk order discounts and flexible payment terms (T/T, LC)
- 24/7 Technical Support: Expert guidance on material selection and application design
Explore more at www.steelfintube.com or contact us for a quote today!
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Sales Dept. (Marketing Director)