Description
xHard Temper Pure Copper Tube — Rigid Straight Copper Pipe for Plumbing, Gas & Mechanical Systems
Hard temper pure copper tube is a rigid, straight hollow copper product manufactured from high-purity copper and supplied in fixed straight lengths. Also known as hard drawn copper pipe or rigid copper tubing, it offers high pressure resistance, straight clean runs, and dependable soldered joints — making it the standard choice for above-ground plumbing, water distribution, gas lines, and mechanical installations.
What Is Hard Temper Pure Copper Tube?
Hard temper pure copper tube is a hollow, cylindrical copper section that is drawn to its final size in a rigid, work-hardened state — it does not bend by hand and holds a perfectly straight line. Unlike brass tube (a copper-zinc alloy) or bronze tube (a copper-tin alloy), it is made from high-purity copper, retaining copper's natural conductivity, corrosion resistance, and durability.
It is commonly called hard copper pipe, hard drawn copper tube, or straight copper pipe. The terms copper tube and copper pipe are often used interchangeably; hard copper pipe is specified by outer diameter (OD) or nominal size and is joined with soldered, brazed, or compression fittings.
Why Choose Hard Temper Pure Copper Tube?
1
High Pressure Rating
The hard drawn temper gives rigid copper pipe greater tensile strength and pressure capacity than soft tubing, making it suitable for pressurized water, gas, and mechanical systems.
2
Straight, Clean Runs
Hard copper pipe stays rigid and straight, producing neat, professional-looking installations in exposed walls, ceilings, and mechanical rooms without sagging or additional support at every joint.
3
Natural Corrosion Resistance
Pure copper forms a protective patina over time, allowing hard copper pipe to withstand water, moisture, and many environmental conditions without rusting or internal scaling.
4
Reliable Soldered Joints
Rigid copper tubing cuts, reams, and sweats cleanly with standard soldering and brazing tools, creating strong, leak-free joints that remain dependable for decades.
5
Safe for Potable Water
Hard temper pure copper tube is widely approved for drinking water systems. It does not release harmful substances and its smooth inner bore resists scale buildup for consistent flow.
6
Long Service Life
Properly installed hard copper pipe can last 50 years or more, often outlasting the building itself and reducing lifetime replacement and maintenance costs.
How Hard Temper Copper Tube Is Made
Seamless Hard Drawn Manufacturing
Most hard drawn copper tube begins as a solid copper billet that is extruded into a hollow shell and then drawn through precision dies to the final outer diameter and wall thickness. The drawing process work-hardens the copper, leaving it rigid and straight — no additional softening anneal is applied. Because it has no welded seam, seamless hard copper pipe offers uniform strength and is preferred for pressurized plumbing, gas, and heat-transfer applications.
Straight Length Production
After drawing, the rigid copper tube is cut into fixed straight lengths, the ends are deburred, and each piece is inspected for straightness and surface quality. The result is a clean, rigid section ready for measured cutting and fitting on the job site.
Common Applications of Hard Temper Pure Copper Tube
Hot & Cold Water Plumbing
Hard copper pipe is the long-standing standard for above-ground potable water distribution in residential and commercial buildings, delivering durable, code-compliant supply lines.
Natural & LP Gas Lines
Rigid copper tubing is widely used for natural gas and liquefied petroleum gas distribution where a strong, pressure-rated, permanently joined line is required.
Hydronic & Radiant Heating
Hard drawn copper tube carries heated water in boilers, baseboard heaters, and hydronic heating systems, withstanding sustained high temperatures and pressure.
Fire Protection & Sprinklers
Straight copper pipe is used in certain fire sprinkler and standpipe systems for its heat resistance, non-combustibility, and long-term reliability.
Compressed Air & Vacuum
Rigid copper lines provide clean, leak-resistant runs for shop air, medical vacuum, and instrument air systems where internal rust and scale cannot be tolerated.
Mechanical & Industrial
Hard temper copper tube serves in chillers, heat exchangers, cooling lines, and custom equipment where rigidity, conductivity, and pressure resistance are essential.
Available Sizes & Finishes
Straight Lengths
Hard copper pipe is supplied in fixed straight sections in standard industry lengths, ready to be cut, reamed, and assembled with soldered or brazed fittings on site.
Common Dimensions
- Outer Diameter (OD): fractional inch sizes from 1/8" upward, plus metric OD options
- Wall Thickness: available in standard wall categories for different pressure ratings
- Length: fixed straight lengths in common industry dimensions
- Ends: plain cut and deburred for clean, easy fitting insertion
Hard copper pipe is also described by industry type designations that reflect wall thickness and pressure rating; the correct type depends on the application and local plumbing code.
Hard Temper Copper Tube vs. Other Materials
Hard Copper vs. PVC / CPVC Pipe
PVC and CPVC are low-cost and lightweight but cannot match rigid copper pipe's temperature range, fire resistance, pressure rating, or proven 50+ year service life in pressurized building systems.
Hard Copper vs. PEX Tubing
PEX is flexible and inexpensive, but it cannot be used in exposed or high-temperature runs the way hard copper pipe can, and it lacks copper's non-combustibility and natural antimicrobial properties.
Hard Copper vs. Steel Pipe
Steel is strong but heavy, threaded, and prone to rust and scale. Hard drawn copper tube is lighter, easier to cut and join, naturally corrosion-resistant, and simpler to modify or extend.
Hard Copper vs. Brass Pipe
Brass is harder and highly machinable but is a copper-zinc alloy rather than pure copper. For maximum corrosion resistance, code compliance, and plumbing performance, hard temper pure copper tube is the specified material.
Frequently Asked Questions
What does "hard temper" mean for copper tube?
Hard temper (or hard drawn) means the copper is work-hardened during drawing and remains rigid and straight. It cannot be bent by hand and is joined with soldered or brazed fittings, unlike soft annealed copper tubing that comes in coils.
What is hard drawn copper pipe used for?
Hard drawn copper pipe is used for above-ground hot and cold water plumbing, natural gas and LP gas lines, hydronic heating, compressed air, fire protection, and mechanical systems that require a rigid, pressure-rated line.
Is hard copper pipe safe for drinking water?
Yes. Hard temper pure copper tube is widely approved for potable water systems. It is non-toxic, resists internal scale, and has been used safely for drinking water in buildings for decades.
Can hard temper copper tube be bent?
Hard copper pipe is rigid and is not designed to be bent by hand. Changes in direction are made with soldered or brazed elbows and fittings, which also produce clean, professional, leak-free joints.
How do you join hard copper pipe?
Rigid copper tubing is most commonly joined by sweat soldering or brazing after cutting and reaming. Compression and flare fittings are also available for specific applications where heat is not practical.
Is seamless hard copper tube better than welded?
Seamless hard drawn copper tube has no weld line, giving it uniform strength and consistency, which is why it is preferred for pressurized water, gas, and heat-exchanger applications.
How long does hard copper pipe last?
When installed correctly, hard temper pure copper tube can last 50 years or more in plumbing, heating, and gas systems, often outlasting alternative plastic piping materials.
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Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Shipping
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