Yellow Brass Grades C27000 (65/35 brass) and C27200 (63/37 brass) are high-zinc wrought brass alloys known for their bright yellow appearance and excellent balance of strength, ductility, corrosion resistance, and formability.
These alloys sit at the transition between α-brass (high ductility) and α + β brass (higher strength), making them highly versatile for fabrication, forming, and general engineering applications.
Metallurgical Characteristics
Predominantly α-phase with limited β-phase (especially C27200)
Good combination of ductility and strength
Strengthening via solid solution (Zn in Cu)
Cold working improves strength and hardness
Annealing restores ductility
Not heat-treat hardenable by precipitation methods.
Available Forms
Sheets and plates
Coils and strips
Rods and bars
Wires
Extrusions
Tubes and pipes
Thickness range: 0.2 mm to 50 mm (depending on product form)
Typical Applications
General fabrication and forming
Plumbing and sanitary components (non-potable)
Architectural and decorative panels
Electrical and mechanical components
Stampings, deep-drawn and rolled parts
Advantages
✔ Bright yellow decorative appearance
✔ Excellent formability and ductility
✔ Good corrosion resistance in atmospheric conditions
✔ Balanced strength for fabrication
✔ Widely available and cost-effective
Why Choose C27000 / C27200 Yellow Brass?
C27000 and C27200 are preferred when a versatile, easy-to-form brass is required with good mechanical strength and an attractive finish.
They are industry-standard grades for wrought yellow brass products used across plumbing, fabrication, architectural, and general engineering sectors.
Quick Comparison
| Grade | Cu % | Zn % | Key Feature |
|---|---|---|---|
| C27000 | ~65 | ~35 | Higher ductility |
| C27200 | ~63 | ~37 | Higher strength |
Design Note:
Choose C27000 for maximum formability and deep drawing,
and C27200 when slightly higher strength is required
without sacrificing manufacturability.