8CR20SI2NI奧氏體不銹鋼

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產品編號 8CR20SI2NI奧氏體不銹鋼

产品说明
产品参数

牌號：8Cr20Si2Ni

標準：GB/T 1221-1992

1，化學成分：

碳 C ：0.75～0.8

硅 Si：1.75～2.25

錳 Mn：0.20～0.60

硫 S ：≤0.030

磷 P ：≤0.030

鉻 Cr：19.00～20.50

鎳 Ni：1.15～1.65

2，力學性能：

抗拉強度 σb (MPa)：淬火回火,≥885

條件屈服強度 σ0.2 (MPa)：淬火回火,≥685

伸長率 δ5 (％)：淬火回火,≥10

斷面收縮率 ψ (％)：淬火回火,≥15

沖擊功 Akv (J)：淬火回火,≥8

硬度：退火,≤321HB;淬火回火,≥262HB

3，特性及適用范圍：用作耐磨性為主的吸氣、排氣閥、閥座等。

●交貨狀態：一般以熱處理規范狀態交貨，其熱處理種類在合同中注明；未注明者，按不熱處理狀態交貨。

熱處理工藝：

熱處理規范：1)退火,800～900℃緩冷或約720℃空冷;

2)淬火,1030～1080℃油冷;

3)回火,100～800℃快冷。

金相組織：組織特征為馬氏體型。

8Cr20Si2Ni 材料的交貨：

依據不同的交貨狀態、規格尺寸、軋制方法、產地等：

8Cr20Si2Ni 板材可分別稱為8Cr20Si2Ni 不銹鋼板、8Cr20Si2Ni 鋼板、8Cr20Si2Ni 卷板、8Cr20Si2Ni 開平板、8Cr20Si2Ni 帶鋼、8Cr20Si2Ni 冷軋板、8Cr20Si2Ni 熱軋板、8Cr20Si2Ni 薄板、8Cr20Si2Ni 中板、8Cr20Si2Ni 厚板、8Cr20Si2Ni 特厚板等。

8Cr20Si2Ni 棒材可分別稱為8Cr20Si2Ni 不銹鋼圓鋼、8Cr20Si2Ni 圓鋼、8Cr20Si2Ni 盤圓、8Cr20Si2Ni 線材、8Cr20Si2Ni 絲材、8Cr20Si2Ni 鍛圓、8Cr20Si2Ni 圓棒、8Cr20Si2Ni 黑棒、8Cr20Si2Ni 毛圓、8Cr20Si2Ni 光圓、8Cr20Si2Ni 車光圓、8Cr20Si2Ni 熱軋圓鋼、8Cr20Si2Ni 軋圓、8Cr20Si2Ni 冷拉圓鋼等。

8Cr20Si2Ni 管材可分別稱為8Cr20Si2Ni 不銹鋼管、8Cr20Si2Ni 鋼管、8Cr20Si2Ni 不銹鋼無縫管、8Cr20Si2Ni 無縫管、8Cr20Si2Ni 不銹鋼焊管、8Cr20Si2Ni 焊管、8Cr20Si2Ni 不銹鋼精密管、8Cr20Si2Ni 精密管、8Cr20Si2Ni 毛細管等。

8CR20SI2NI不銹鋼規格：圓棒規格直徑6mm-350mm，板材規格厚0.1mm-300mm均有現貨
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