Streamline MH04020 Type M Hard Copper Tube – 1/2" x 20 ft

The Streamline MH04020 is a hard-drawn, straight-length Type M copper tube engineered for pressure-rated plumbing, heating, and water distribution systems. Manufactured from seamless UNS C12200 copper, this 20-foot tube meets ASTM B88 requirements for dimensional consistency, mechanical integrity, and long-term service performance. Type M tubing features a thinner wall compared to Type L or Type K copper, making it suitable for above-ground potable water systems, hydronic heating loops, and general utility piping in residential and light commercial installations where permitted by code.

Details

• Manufacturer: Streamline (Mueller Industries)
• Model Number: MH04020
• Product Type: Type M Hard Copper Tube
• Form: Straight, hard-drawn
• Nominal Size: 1/2 inch
• Outside Diameter (OD): 5/8 inch (0.625 in / 15.88 mm)
• Wall Thickness: 0.028 inch (0.71 mm)
• Length: 20 feet (6.10 meters)
• Material: Seamless Copper – UNS C12200 (Phosphorus-Deoxidized, Non-Arsenical)
• Tube Type: Type M (thin wall, pressure-rated)
• Temper: Hard Drawn (Rigid)
• Markings: Incised and color-coded per ASTM B88 for identification
• Working Pressure (at 100°F): 420 psi
• Maximum Operating Temperature: 150°F (typical for water service)
• Manufacturing Standard: ASTM B88 – Seamless Copper Water Tube
• Certifications: ANSI/NSF 61 (Lead-Free Compliance for Potable Water)
• Joining Methods: Soldering, Brazing, Press-Connect, or Mechanical Fittings
• Surface Finish: Smooth, mill-finished copper exterior
• Identification: Red color code (Type M standard marking)
• Service Category: Above-ground plumbing and mechanical installations
• Compliance: ASTM B88, NSF/ANSI 61, applicable state and local codes

Technical Application

Streamline Type M copper tubing is used in plumbing and hydronic systems where moderate working pressures and temperatures are encountered. The MH04020 tube is dimensionally precise and compatible with standard soldered, brazed, or press-fit joints. It is suitable for potable water distribution, closed-loop heating circuits, and other general service piping where copper tubing is specified. The hard temper construction provides rigidity for long runs and vertical installations, reducing the need for intermediate supports. Each length is incised and color-banded for easy field identification to verify compliance with Type M specifications.

Specifications

• Tube Type: Type M – Thin Wall Copper Tube
• Temper: Hard Drawn (Straight Length)
• Nominal Size: 1/2 inch
• Outside Diameter: 5/8 inch (0.625 in)
• Wall Thickness: 0.028 inch (0.71 mm)
• Length: 20 feet (6.10 m)
• Material Grade: UNS C12200 Copper
• Working Pressure (100°F): 420 psi
• Service Temperature: Up to 150°F (typical water systems)
• Compliance: ASTM B88, NSF/ANSI 61
• Surface Finish: Smooth exterior, incised marking and red color band
• Joining Methods: Soldering, Brazing, Mechanical, or Press-Connect
• Corrosion Resistance: Excellent – suitable for potable and hydronic systems
• Country of Manufacture: USA

Application Suitability

• Potable water supply systems (where Type M is permitted by code)
• Hydronic heating and cooling loops
• General utility piping in residential and light commercial applications
• Above-ground plumbing installations requiring rigid copper tube

Installation Guidance

Installation should follow ASTM B828 and local code requirements for copper joining. Tubing must be properly cut, reamed, and deburred prior to assembly. Type M tubing is not recommended for direct-burial or underground installations unless permitted by the applicable authority. Ensure proper support spacing and alignment to prevent vibration or stress concentration on joints. Use compatible lead-free solder or brazing alloys for potable systems.

Summary

The Streamline MH04020 Type M Hard Copper Tube (1/2" x 20 ft) provides a durable, pressure-rated solution for professional plumbing and mechanical systems. Manufactured from seamless C12200 copper and conforming to ASTM B88 and NSF 61 standards, it offers reliable performance in potable water and hydronic applications. The hard temper, straight length, and precise wall tolerance ensure efficient installation and long-term system integrity in code-compliant environments.