promotion image of download ymail app
小哥 asked in 科學工程學 · 1 decade ago





1 Answer

  • 1 decade ago
    Favorite Answer

    F5 不是鑄造的材料規格,而是高溫使用鍛造 Low Alloy Steel 材料的規格。

    依照 ASTM A182 (Standard Specification for Forged or Rolled Alloy and Stainless Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service),其中有 F5 的材料規格,其 UNS 號碼為 K41545,屬於 5Cr1/2Mo 的等級。

    詳細的化學成分為: C 0.15%,Mg 0.30-0.60%,P 0.030%,S 0.030%,Si 0.05%,Cr 4.0-6.0%,Mo 0.44-0.65%

    詳細的機械性能為:Tensile Strength 70 ksi min [485 MPa min],Yield Strength 40 ksi min [275 MPa min],Elongation in 2 inch: 20% min,Reduction of Area 35% min.

    • Commenter avatarLogin to reply the answers
Still have questions? Get your answers by asking now.