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Seamless Copper Tube & Pipe Manufacturer

Fengdie manufactures seamless copper and brass tubes in China — pure copper (red copper) grades C11000 / C12200 / C10200 and brass grades C26000 / C27000 / C33000 / C44300 — factory direct with flexible MOQ and EN 10204 3.1 certificates.

Choose the Right Copper Alloy Tube for Your Application

Seamless copper and alloy tube range in multiple grades

Copper Seamless Tube

Drawn copper-zinc alloy tubes offering higher strength, hardness, and machinability than pure copper at lower cost — ideal for heat exchangers and condensers, valves and fittings stock, instrumentation, and precision machined parts. Dezincification-resistant grades available for seawater service.

Grade：C26000 (H68) · C27000 (H65) · C28000 (H62) · C33000 · C44300 · C68700
Standards:

International Equivalent：ASTM B135 / B111 · EN 12449 · JIS H3300 · GB/T 1528

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Pure copper tube product line - coils and straight lengths

Pure Copper Tube (Red Copper Tube)

Seamless tubes in ≥99.9% unalloyed copper — the highest thermal and electrical conductivity of any engineering tube. First choice for HVAC & refrigeration (ACR), plumbing and drinking water, heat exchangers, medical gas, and EV / data-center cooling. Supplied as straight lengths, pancake coils, and LWC in soft to hard tempers.

Grade: C11000 (T2) · C12200 (TP2) · C12000 (TP1) · C10200 (TU1)

Standards：ASTM B280 / B75 / B88 / B68 · EN 1057 · EN 12735 · JIS H3300

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Contact our team of COPPER TUBE TECHNICAL EXPERTS with any questions

Consult a Fengdie Technical Expert

Pure Copper vs Copper Alloy Tubes — Which Is Best for Your Project?

Pure Copper Tube (Red Copper · C11000 / C12200 / C10200)

- Composition: ≥99.9% unalloyed copper; natural reddish color
- Key properties: the highest thermal & electrical conductivity among common tube materials; excellent ductility for bending, flaring, and brazing; natural antibacterial surface; self-forming protective oxide film
- Best for: air-conditioning & refrigeration lines (ASTM B280), potable water & gas plumbing (EN 1057 / ASTM B88), heat exchangers where heat transfer rules, medical gas pipelines, battery & liquid cooling
- Less suitable for: parts needing high strength, hardness, or heavy machining — the alloy range wins there

Copper Alloy Seamless Tubes (Brass & Bronze Series · C21000 – C68700)

- Composition: copper alloyed with zinc, tin, or aluminum; golden to bronze color by grade
- Key properties: higher tensile strength and hardness than pure copper; superior machinability (free-machining grades); lower cost per kg; admiralty C44300 and aluminum brass C68700 resist dezincification in seawater
- Best for: condenser & heat-exchanger tubing in power, marine, and petrochemical service (ASTM B111); valve, fitting, and instrument stock; turned precision components; structural hardware
- Less suitable for: maximum heat-transfer or electrical-conductivity applications — pure copper wins there

Copper Tube Sizes — Metric & Imperial Chart

OD (mm)	OD (mm)	Typical Wall (mm)	Common Use
1/4	6.35	0.6 - 0.8	ACR liquid line
3/8	9.52	0.6 - 0.8	ACR liquid/suction
1/2	12.70	0.7 - 1.0	ACR suction, water
5/8	15.88	0.7 - 1.0	ACR suction
3/4	19.05	0.8 - 1.2	Water, heat pump
7/8	22.22	0.8 - 1.2	Commercial ACR

Copper Grade Equivalents — ASTM (UNS) ↔ EN ↔ JIS ↔ GB Cross-Reference

UNS (ASTM)	EN	JIS	GB (China)
C11000	CW004A (Cu-ETP)	C1100	T2
C12200	CW024A (Cu-DHP)	C1220	TP2
C12000	CW023A (Cu-DLP)	C1200	TP1
C10200	CW008A (Cu-OF)	C1020	TU1
C26000	CW505L (CuZn30)	C2600	H68
C27000	CW507L/CW508L (CuZn36/37)	C2700	H65
C28000	CW509L (CuZn40)	C2800	H62
C44300	CW706R	C4430	HSn70-1
C68700	CW702R	C6870	HAl77-2

Copper Tube Applications by Industry

HVAC & Refrigeration — ACR-grade pure copper tubes in coils and straight lengths for split systems, heat pumps, and cold chain equipment.

Plumbing & Construction — potable water and gas tubing to EN 1057 / ASTM B88 with a 50+ year service record.

Power & Marine — dezincification-resistant [copper alloy condenser tubes]（内链子页②）for power-plant, shipboard, and desalination heat exchangers.

Automotive & New Energy — battery-cooling and thermal-management tubing produced under IATF 16949, alongside our precision steel tubes.

Medical & Laboratory — degreased, capped copper tubes for oxygen and vacuum pipeline systems.

Electronics & Electrical — oxygen-free (C10200) and high-conductivity tubes for vacuum devices, busbars, and connectors.

How to Verify a Copper Tube Manufacturer — 5-Point Buyer's Checklist

Legal & factory status

business license and a real production site (we welcome factory audits and video tours of our 7,000 m² plant).

Quality system certificates

ISO 9001 and IATF 16949, verifiable by certificate number.

Material traceability

request a sample EN 10204 3.1 mill test certificate before you order; we provide one with every batch.

Testing capability

on-line eddy current testing, hydrostatic/pneumatic pressure testing, and spectral analysis in-house.

Trial-order policy

A manufacturer confident in quality accepts small first orders; we do.

FAQ of Copper Tube

Q Do you supply cut-to-length and non-standard sizes?

A Yes. With in-house extrusion, drawing, and bright-annealing lines, we produce non-standard OD and wall-thickness combinations, cut-to-length tubes, and special tempers across both the pure copper and alloy ranges — send your drawing for a 24-hour reply.
Q What is your MOQ and lead time for copper tubes?

A Unlike large mills that require 1,000 kg+ minimums, we accept flexible MOQs and welcome trial orders. Stock sizes ship quickly, and custom production typically runs 15–30 business days. Send your specification for an exact quotation — we reply within 24 hours.
Q What documents ship with each order?

A very batch is delivered with an EN 10204 3.1 mill test certificate covering chemical composition and mechanical properties, together with 100% eddy current and hydrostatic test records — the documentation experienced importers require for incoming inspection and traceability.
Q Which grades do you manufacture, and can you match my local standard (ASTM / EN / JIS / GB)?

A We produce pure copper grades C11000 (T2), C12200 (TP2), C12000 (TP1), and C10200 (TU1), plus alloy series from C21000 to C68700 — manufactured to ASTM, EN, JIS, and GB standards. Send the grade designation used in your market and our engineers will confirm the exact equivalent within 24 hours.
Q What is the difference between a pure copper tube and a copper alloy (brass) tube?

A A pure copper (red copper) tube is ≥99.9% unalloyed copper with the highest thermal and electrical conductivity — first choice for air conditioning, plumbing, and heat transfer. Copper alloy tubes (brass and bronze series) trade some conductivity for higher strength, hardness, and machinability at lower cost, with dezincification-resistant grades for seawater. See our Pure Copper Tube and Copper Seamless Tube pages for full specifications.
Q What is the difference between red copper tube and pure copper tube?

A They are the same product — "red copper" describes the natural color of unalloyed copper (≥99.9% Cu). Both terms refer to seamless tubes in grades like C11000 (T2) and C12200 (TP2), as opposed to yellow brass tubes which are copper-zinc alloys.
Q Which grade should I choose — C11000, C12200, C12000 or C10200?

A C12200 (TP2) for anything brazed or welded (ACR, plumbing, heat exchangers); C11000 (T2) for electrical conductivity; C12000 (TP1) when you need TP2's weldability with higher conductivity; C10200 (TU1) oxygen-free for vacuum and electronics. Send your drawing for a free grade recommendation.
Q What sizes do you supply, and in which forms?

A OD 3–108 mm (1/8"–4-1/4") including all ACR sizes from 3/16" to 7/8", wall 0.3–5.0 mm — as straight lengths, pancake coils (15 m / 30 m / 50 ft), and LWC, in soft annealed to hard drawn tempers.
Q Do your copper tubes meet ASTM B280 / B88 / EN 1057 / EN 12735, and can you prove i

A Yes. Every batch ships with an EN 10204 3.1 mill test certificate plus chemical composition, mechanical property, eddy current, and pressure test reports — the exact documentation experienced importers ask for.