Mueller Industries, Inc.
Mueller Industries 3/8 in 20 ft Copper Tubing ASTM B280
Seamless C12200 copper coil, 20 ft long with a 3/8 in outside diameter and .032 in wall, rated to 787 psi at 200 °F for air-conditioning and refrigeration use
- Seamless copper coil resists leaks — fabricated without joints
- 20 ft length covers long runs — single piece reduces fittings
- Soft temper allows hand bending — no special tools required
- ASTM B280 rated for A/C and refrigeration — meets industry standard
- Withstands 787 psi at 200 °F — reliable under high pressure
Copper tubing for A/C and refrigeration
This seamless C12200 copper coil measures 3/8 in outside diameter with a .032 in wall and .311 in inside diameter. It is supplied in a 20 ft length and rated for 787 psi at 200 Degrees F up to 400 Degrees F. The tubing meets ASTM B280 for air-conditioning and refrigeration service.
Installers needing ASTM B280 compliance
The coil suits technicians who require clean, soft copper for standard A/C and refrigeration hook-ups. It is not intended for high-pressure gas lines, potable water mains, or applications that demand a different alloy, temper, or wall thickness. Builders needing longer runs or alternative diameters should select another product.
Coil form simplifies handling and bending
Supplied as a 20 ft coil, the tubing can be unrolled and shaped on site without extra fittings. The soft temper allows tight bends by hand or with basic tools, reducing joint count and potential leak paths. No cleaning, capping, or coating is included, so the installer prepares the ends per local code.
Highlights
- Seamless copper coil resists leaks — fabricated without joints
- 20 ft length covers long runs — single piece reduces fittings
- Soft temper allows hand bending — no special tools required
- ASTM B280 rated for A/C and refrigeration — meets industry standard
- Withstands 787 psi at 200 °F — reliable under high pressure
Specifications
| Brand | Mueller Industries |
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Questions about this item
What flare fittings and tubing cutter do I need for the 3/8 in outside diameter and .032 in wall thickness?
Use 3/8 in flare fittings rated for at least 787 psi and a tubing cutter sized for 3/8 in copper; the soft temper C12200 coil cuts cleanly and flares without splitting.
Can I join this soft temper coil to existing hard-drawn copper lines without changing the pressure rating?
Yes — brazing with BCuP alloy keeps the joint at the 787 psi rating; the UNS C12200 grade matches standard plumbing copper so no derating is required.
How do I verify the coil meets ASTM B280 after I unroll it?
Check the ink-jet print for ASTM B280 and UNS C12200, confirm the .311 in inside diameter with a bore gauge, and pressure-test to 787 psi at 200 °F with no leaks.
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