H62 Brass

What Is H62 Brass?

H62 brass is a kind of ordinary brass with an average copper content of 62%. It has good mechanical properties, good plasticity in hot state and good plasticity in cold state, good machinability, easy brazing and welding, and resistance to Corrosion, but easy to produce corrosion cracking.

H62 brass strip

Indicates an ordinary brass strip with an average copper content of 62%. Among them, H—the first letter of the pinyin of the Chinese character “黄”, ​​and 62—the average content of copper;

On the basis of ordinary brass, copper alloys with other elements added are called special brass, which is still represented by “H”, followed by the chemical symbols and average composition of other added elements. For example, H62 has a copper content of 60.5% to 63.5%. , The balance is the zinc content; and HAl59-3-2 means that its copper content is 57% to 60%, aluminum content is 2.5% to 3.5%, nickel content is 2% to 3%, and the rest is zinc content.

Brass is divided into three types: ordinary brass, special brass and cast brass. Cast brass starts with ZCu followed by the symbols of other elements and their average content.

chemical composition

Copper (Cu): 60.5~63.5%
Iron (Fe): ≤ 0.15%
Lead (Pb): ≤ 0.08%
Antimony (Sb): ≤0.005%
Bismuth (Bi): ≤0.002%
Phosphorus (P): ≤0.01%
Zinc (Zn): balance
Sum of impurities: ≤0.5%

characteristic

Ordinary brass has good mechanical properties, good plasticity in hot state, and plasticity in cold state, good machinability, easy brazing and welding, corrosion resistance, but easy to cause corrosion cracking. In addition, the price is cheap, and it is a common brass variety that is widely used.

H62 (that is, four or six brass). The β phase is much harder than the α phase at room temperature, so it can be used for parts that bear larger loads. The α+β two-phase brass can be hot-worked above 600℃. α+β two-phase brass microstructure: α is a bright white solid solution, β is an ordered solid solution based on CuZn. The strong electric field inhibits the void space during high temperature deformation of H62 brass.

use

H62 copper rods are free-cutting brass, which are divided into environmental protection brass rods and ordinary brass rods. Generally, the authentic 58-3 copper rods and 59-1 copper rods are extruded. The copper rods produced by ordinary continuous casting copper rods cannot reach all aspects. The copper rods of the extrusion process have good tensile properties. High hardness and high straightness.

Generally, there is a relatively large amount of precision copper parts such as auto parts, medical parts, and electrical parts. It can be used for various deep drawing and bending stress parts, such as pins, rivets, washers, nuts, pipes, pressure gauge springs, screens, radiator parts, etc.

Mechanical properties

Note: Tensile mechanical properties of wires at room temperature except for locks and clocks

Heat treatment specification

Thermal processing temperature 650～850℃
Annealing temperature 600～700℃
The low temperature annealing temperature to eliminate internal stress is 270～300℃.

Mechanical behavior:

Tensile strength (Mpa) ≥420
Elongation (%) ≥10

H62 brass rod

Material name: Ordinary brass drawn rod (semi-hard, 40～80 mm)
Grade: H62 H59 H65 H68
Standard: GB/T 4423-1992

H62 brass rod has good mechanical properties, good plasticity in hot state, good plasticity in cold state, good machinability, easy to be welded and welded, corrosion resistance, but easy to cause corrosion and cracking. In addition, the price is cheap and it is widely used. A variety of ordinary brass.

●Characteristics

It has good mechanical properties, good plasticity in hot state, acceptable plasticity in cold state, good machinability, easy to weld and weld, corrosion resistance, but easy to cause corrosion and cracking. In addition, it is cheap and it is a common yellow that is widely used. Copper varieties. It can be used for various deep drawing and bending stress parts, such as pins, rivets, washers, nuts, pipes, pressure gauge springs, screens, radiator parts, etc.

●Chemical composition:

Copper Cu: 60.5～63.5
Zinc Zn: margin
Lead Pb: ≤0.08
Lead Pb: ≤0.08
Boron P: ≤0.01
Iron Fe: ≤0.15
Beryllium Sb: ≤0.005
Bismuth Bi: ≤0.002
Note: ≤0.5 (impurities)
Note: Longitudinal room temperature tensile mechanical properties of bars
Sample size: diameter or distance between opposite sides>40～80

Heat treatment specification

Thermal processing temperature 650～850℃
Annealing temperature 600～700℃
The low temperature annealing temperature to eliminate internal stress is 270～300℃.

H62 Ordinary Brass Drawing Rod

H62 ordinary brass drawn rods are used for various deep drawing and bending stress parts, such as pins, rivets, washers, nuts, pipes, pressure gauge springs, screens, radiator parts, etc.

Material category: H62 ordinary brass drawn rod (semi-hard, 5～40mm)
Material designation: H62
Material standard: GB/T 4423-1992

Material characteristics

It has good mechanical properties, good plasticity in hot state, acceptable plasticity in cold state, good machinability, easy to weld and weld, corrosion resistance, but easy to cause corrosion and cracking. In addition, it is cheap and it is a common yellow that is widely used. Copper varieties.

Mechanical properties

Sample size: diameter or distance between opposite sides 5～40
State: Semi-hard (Y2)
Tensile strength σb(MPa): ≥370
Yield strength σs(MPa):
Elongation δ10 (%): ≥15
Reduction of area ψ(%): ≥18

Heat treatment:

Thermal processing temperature 650～850℃;
Annealing temperature 600～700℃;
The low temperature annealing temperature to eliminate internal stress is 270～300℃.