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產品詳情
  • 產品名稱:4140抗腐蝕合金結構鋼|4140價格|4140硬度|4140性能|4140成分|4140用途|4140熱處理

  • 產品型號:4140
  • 產品廠商:新日鐵&信友金屬公司
  • 產品價格:0
  • 折扣價格:0
  • 產品文檔:
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簡單介紹:
4140抗腐蝕合金結構鋼|4140價格|4140硬度|4140性能|4140成分|4140用途|4140熱處理4140抗腐蝕合金結構鋼|4140價格|4140硬度|4140性能|4140成分|4140用途|4140熱處理
詳情介紹:
4140抗腐蝕合金結構鋼|4140價格|4140硬度|4140性能|4140成分|4140用途|4140熱處理特性及適用范圍:
 
  屬中等淬透性鋼,熱處理后有較好的強度和良好的綜合力學性能,工藝性好,成材率高。*高使用溫度為 427℃??捎米髌啓C緊固件。
 
  ●化學成份:
 
  碳 C :0.33~0.48
 
  硅 Si:0.15~0.35
 
  錳 Mn:0.75~1.00
 
  硫 S :≤0.030
 
  磷 P :≤0.030
 
  [1] 鉻 Cr:0.80~1.10
 
  鉬 Mo:0.15~0.25
 
  ●力學性能:
 
  抗拉強度 σb (MPa):795
 
  條件屈服強度 σ0.2 (MPa):610
 
  伸長率 δ5 (%):22
 
  斷面收縮率 ψ (%):67
 
  沖擊韌性值 αku (J/cm2):157
 
  硬度 :241HB
 
  試樣尺寸:某試樣
 
  ●熱處理規范及金相組織:
 
  熱處理規范:880℃,1h油淬,650~680℃,2h回火,空冷。
 
  [1]金相組織:回火馬氏體。4140抗腐蝕合金結構鋼|4140價格|4140硬度|4140性能|4140成分|4140用途|4140熱處理
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