Drawing No. EH–MT–006 // Engineering Materials
Brass Properties
Reviewed August 2026
C26000 Cartridge Brass (about 70% Cu, 30% Zn) in H01 quarter-hard condition is used as the representative brass. It offers good formability, corrosion resistance and machinability with much lower thermal conductivity than pure copper.
Representative properties
Switch units without changing the underlying material reference.
What changes these properties?
Engineering variability
- Mechanical values are explicitly tied to H01 quarter-hard flat-product data.
- The displayed Poisson ratio is derived from CDA Young’s and shear moduli.
- Zinc content and cold work strongly influence strength and ductility.
- Thermal and corrosion properties depend on composition and environment.
Selection note
Useful for formed parts, fittings, hardware and heat-transfer components where copper-like corrosion behavior and good manufacturability are useful.
Do not combine strength from one grade/condition with modulus, thermal data or temperature limits from another without checking compatibility. Where the overview shows a range, it is intended to expose variability—not establish allowable bounds.
Property interpretation
Stiffness vs strength
Young’s modulus controls elastic deformation. Yield or fracture strength controls how far the material can be stressed. These are separate material characteristics.
Thermal response
Thermal conductivity controls temperature gradients, specific heat contributes to thermal inertia, and expansion controls thermally induced strain when movement is restrained.
Temperature transition
The final property card is deliberately labeled “melting / transition.” Metals often have a solidus–liquidus range; amorphous polymers and glass use softening or glass-transition concepts; concrete and wood decompose instead of exhibiting one clean melt point.
Technical sources
Source hierarchy favors manufacturers, industry associations, standards bodies and government engineering references. Strength data must still be reconciled with the exact procurement specification.