tin bronze

QSn4-3tin bronze

Material name:tin bronzeDrawn rod (hard, 5-12mm)

Brand: QSn4-3

Standard: GB/T 4423-1992

QSn4-3 characteristics and scope of application:

QSn4-3 is zinc containing, with high wear resistance and elasticity, good diamagnetism, and can withstand hot or cold pressure processing well; In the hard state, it has good machinability, is easy to weld and fiber weld, and has good corrosion resistance in atmosphere, fresh water, and seawater.

QSn4-3 Chemical composition:

Copper Cu: Surplus

Tin Sn: 3.5~4.5

Zinc Zn: 2.7-3.3

Lead Pb: ≤ 0.02

Phosphorus P: ≤ 0.03

Aluminum Al: ≤ 0.002

Iron Fe: ≤ 0.05

硅 Si ：≤0.002

Antimony Sb: ≤ 0.002

Bismuth Bi: ≤ 0.002

Note: ≤ 0.2 (impurities)

QSn4-3 mechanical properties:

Tensile strength σ b (MPa): ≥ 430

Elongation rate δ 10 (%): ≥ 10

Elongation rate δ 5 (%): ≥ 14

Note: Longitudinal room temperature tensile mechanical properties of bar materials

Sample size: diameter or distance from opposite sides of 5-12

QSn4-3 heat treatment specification: heat processing temperature 750 ℃; Annealing temperature is 600 ℃.

Purple Copper Series:

型号： T2（C1100）、TU00（C67300 C67400）、TU1、TU2、TU3（C67300 C67400）、TP1（C67300 C67400）、TP2（C67300 C67400）；

Performance: High conductivity, thermal conductivity, corrosion resistance, suitable strength, easy processing and shaping, and elegant and dignified color;

Application: Widely used in RF cable strips, transformers, relays, high fidelity speaker cables, contactors, frequency converters, etc;

Function: Suitable for making transmission materials, conductive components, electrical parts, electrode materials, and corrosion-resistant components.

Brass series:

Model: H62（C2800）、H63（C2720）、H65（C2680）、H68（C2620）、H70（C2600）、H85（C2300）、H90（C2200）、H96（C2100）； .

Performance: It has good cold workability and good hot formability, as well as good corrosion resistance and strength;

Application: Widely used in various buttons, heat sinks, daily decorations, and complex cold deep drawn parts;

Function: Suitable for making electrical connectors, building decorations, radiator fins, medals, musical instruments, clock components, instrument components, and other hardware products; .

White Copper Series:

BZn10-25（C7450）、BZn12-24（C7451）、BZn15-20（C7541）、BZn18-10（C7350）、BZn18-18（C7521）、BZn18-26（C7701）；

Performance: Beautiful color, excellent ductility, fatigue resistance, corrosion resistance, and good stress relaxation resistance;

Application:

Used for the housing of liquid crystal oscillation components, crystal shells, sliding plates for potentiometers, machinery, construction, wind instruments, etc;

Function: Suitable for producing springs and components for precision mechanical parts, electronic devices, optical instrument components, clock components, shielding cases, resonators, and other electronic components;

Bronze series:

Model: XYK-6（C50715）、QSn4.0-0.3（C5111/C5100）、QSn6.5-0.1 （C5191）、QSn8.0-0.3（C5210）、QSn10-0.3（C5240）； .

Performance: Has good ductility, fatigue resistance, and corrosion resistance;

Applications: Electronic and electrical springs, switches, connectors, lead frames, connectors, terminals, vibration plates, etc. C5192 and C5102 are used for elastic materials; When the elasticity requirement is particularly high, C5210 and C5240 are selected;

Function: Suitable for making materials such as elastic components, wear-resistant parts, corrosion-resistant parts, and anti magnetic parts.