
供应QSn4-0.3锡磷青铜#铜棒 铜板 铜管厂家X
High beryllium copper for the domestic most the high grade mould beryllium copper, containing beryllium by around 2%, with high strength, high hardness, high conductivity, high elasticity, wear resistance, fatigue resistance, corrosion resistance and low elastic hysteresis, etc. Tin phosphor bronze QSn4 0.3 chemical composition/hardness/price/performance/table name: tin bronze control rods (hard, 25 ~ 40 mm) brand: QSn4-0.3 standard: GB/T 4423-1992 QSn4-0.3 tin phosphor bronze characteristics and scope of application: QSn4 0.3 tin phosphor bronze with high mechanical properties, corrosion resistance and flexibility, can well under cold stress processing, also may carry on the pressure under the hot processing.
QSn4-0.3锡磷青铜化学成份:
铜 Cu :余量
锡 Sn :3.5~4.5
铅 Pb:≤0.02
磷 P:0.20~0.40
铝 Al:≤0.002
铁 Fe:≤0.02
硅 Si :≤0.002
锑 Sb :≤0.002
铋 Bi:≤0.002
注:≤0.1(杂质)
力学性能:
抗拉强度 σb (MPa):≥355
伸长率 δ10 (%):≥12
伸长率 δ5 (%):≥15
注 :棒材的纵向室温拉伸力学性能
试样尺寸:直径或对边距离>25~40
热处理规范:热加工温度750~780℃;退火温度600~650℃。
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