0Cr17Ni4Cu4Nb不銹鋼線材
17-4PH、SUS630、S17400沉淀硬化不銹鋼
17-4PH?,SUS630,S17400?的國內牌號為:0Cr17Ni4Cu4Nb
(1)化學成分
鋼號?C?Si?Cr?Ni?Mn
17-4PH?≤0.07?≤1.0?15.5-17.5?3.0-5.0?≤1.0
鋼號?Cu?Nb?s?p
17-4PH?3.0-5.0?0.15-0.45?≤0.030?≤0.035
(2)室溫力學性能
熱處理制度?бb
MPa?бs
MPa?δ5
%?ψ
%?硬度
HRC?附注
1040℃水冷或空冷(A狀態)?HB≤363?①
1040℃水或空冷,480℃回火4h空冷(H900)?≥1314?≥1177?≥10?≥40?≥40
1040℃水或空冷,495℃回火4h空冷(H925)?≥1177?≥1070?≥10?≥44?≥38
1040℃水或空冷,550℃回火4h空冷(H1025)?≥1070?≥1000?≥12?≥45?≥35
1040℃水或空冷,580℃回火4h空冷(H1075)?≥1000?≥863?≥13?≥45?≥31
1040℃水或空冷,620℃回火4h空冷(H1150)?≥932?≥725?≥16?≥50?≥28
1040℃水冷,(A狀態)?1030?755?12?45?HB363?②
1040℃水冷,480℃4h空冷(H900)?1373?1275?14?50?44
1040℃水冷,495℃4h空冷(H925)?1304?1207?14?54?42
1040℃水冷,550℃4h空冷(H1025)?1167?1138?15?56?38
1040℃水冷,580℃4h空冷(H1075)?1138?1030?16?58?36
1040℃水冷,620℃4h空冷(H1150)?1000?862?19?60?33
①摘自GB1220;②實際檢驗值。