Introduction
JIS H3300 C1220T Red Copper Seamless Tube is widely used in shipyard and marine cooling systems, thanks to its outstanding electrical and thermal conductivity combined with corrosion resistance. DLSS supplies JIS H3300 C1220T-H seamless tubes in size 12 mm OD × 1.2 mm WT × 6000 mm length, manufactured under strict quality control to meet shipbuilding standards.
What is JIS H3300 C1220T Red Copper Seamless Tube?
JIS H3300 C1220T Red Copper Seamless Tube is a high-purity copper alloy equivalent to TP2 in Chinese GB standard. With over 99.9% copper content, it provides:
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Excellent thermal and electrical conductivity
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High resistance to freshwater and marine corrosion
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Good mechanical properties under H temper (hard drawn) condition
This makes it ideal for marine piping, condensers, and heat exchangers.
Specifications
| Item | Details |
|---|---|
| Standard | JIS H3300 |
| Material | C1220T Red Copper (equivalent to TP2) |
| Temper | H (Hard Drawn) |
| Type | Seamless Tube |
| Size | 12 mm OD × 1.2 mm WT × 6000 mm Length |
| Applications | Shipyards, condensers, heat exchangers, marine cooling, industrial use |
Key Features of JIS H3300 C1220T Red Copper Seamless Tube
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High Thermal & Electrical Conductivity – ideal for heat exchangers and condensers.
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Corrosion Resistance – performs well in both freshwater and marine environments.
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Hard-Drawn Strength (H Temper) – ensures durability in ship piping systems.
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Seamless Construction – provides leak-proof performance with smooth bore.
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Standard Compliance – manufactured to JIS H3300 requirements.
Applications
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Shipyard Piping Systems – seawater cooling, ballast, and circulation lines.
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Heat Exchangers & Condensers – efficient energy transfer in ship systems.
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Marine Power Plants – cooling systems for engines and turbines.
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Industrial Cooling – petrochemical and refinery units requiring high conductivity copper.
Why Choose DLSS?
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Complete copper alloy supply – C1220, C44300, C68700, C70600.
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Strict QC – Mill Test Certificates EN 10204/3.1 provided.
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Third-party inspection – SGS, BV, TUV available.
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Export packaging – capped ends, plastic wrapping, ISPM-15 wooden cases.
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Global shipyard supply – trusted by marine clients worldwide.
Frequently Asked Questions (FAQ)
Q1: What makes JIS H3300 C1220T Red Copper Seamless Tube suitable for shipyards?
A1: Its high conductivity, corrosion resistance, and mechanical strength under H temper make it ideal for ship piping and heat exchangers.
Q2: What does C1220T-H mean?
A2: C1220T is the red copper grade, and H indicates hard-drawn condition for added strength.
Q3: Can DLSS supply different tempers or customized sizes?
A3: Yes, tubes can be supplied in annealed or soft temper, and cut-to-length as per requirements.
Q4: What certifications are available?
A4: MTC (3.1), plus SGS, BV, TUV inspections on request.
