H65 is an alloy composed of copper and zinc. When the zinc content is less than 39%, zinc can dissolve in copper to form single-phase a, which is called single-phase brass. It has good plasticity and is suitable for hot and cold pressure processing. When the zinc content is greater than 39%, there is a single phase and b solid solution based on copper and zinc, which is called dual-phase brass. b makes the plasticity small and the tensile strength increases. It is only suitable for hot pressure processing. If you continue to increase the zinc If the mass fraction is lower, the tensile strength will decrease and it will have no use value.
H65 has sufficient mechanical strength and process performance, and has a beautiful golden luster.
Chemical composition of H65:
Copper Cu: 63.5～68.0
Zinc Zn: balance
Lead Pb: ≤0.03
p>Boron B: ≤0.01
Iron Fe: ≤0.10
Antimony Sb: ≤0.005
Bismuth Bi: ≤0.002
Note: ≤0.3 (impurities)
H65 mechanical properties:
Tensile strength σb (MPa): ≥390
Note: Rod Longitudinal room temperature tensile mechanical properties
Sample size: diameter or pair distance 5 ~ 40
The mechanical properties of H65 change with the increase in zinc content, and the increase in zinc content causes The strength of H65 increases, but the plasticity decreases.
The physical properties of H65 are related to the zinc content and process elements. H65 corrodes very slowly in the atmosphere, and the corrosion rate of H65 in fresh water is not large. In seawater, it may reach 0.1mm/ a. As the temperature increases, the corrosion rate increases.
Thermal conductivity of H65: 116.7/w.(m.k)-1
The density of H65 is: 8.47
H65 is mainly used in various hardware products , lamps, pipe fittings, zippers, plaques, rivets, springs, sedimentation filters, etc.
H65 brass is used in various industrial equipment, leaf springs, coil springs, sealing parts, automobiles Austenitic stainless steel plates are used in exhaust manifolds, catalytic converters, EGR coolers, heat-resistant gaskets for turbochargers, and aircraft joint parts.