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8cr20si2ni不銹鋼

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產(chǎn)品編號(hào) 8cr20si2ni不銹鋼
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  • 产品参数

IMG_1146.JPG

化學(xué)成分:

碳 C :0.75~0.85

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

力學(xué)性能:

抗拉強(qiáng)度σb (MPa):淬火回火,≥885

條件屈服強(qiáng)度 σ0.2 (MPa):淬火回火,≥685

伸長(zhǎng)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

熱處理工藝:

熱處理規(guī)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不銹鋼規(guī)格:圓棒規(guī)格直徑6mm-350mm,板材規(guī)格厚0.1mm-300mm均有現(xiàn)貨
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