SUS631不銹鋼彈簧線,直條
sus631,17-7ph,s17700,0cr17ni7al17-7ph?,sus631,s17700,0cr17ni7al?產(chǎn)品規(guī)格:?軋材φ1.0-φ50?鍛材φ50-φ190;車光棒.鍛件加工?(方形,環(huán)件,異形環(huán)件,套筒)(按圖紙)17-7ph?,sus631,s17700的國內(nèi)牌號是0cr17ni7a1?(1)?化學(xué)成分%?
鋼號
|
c
|
si
|
mn
|
s
|
p
|
cr
|
ni
|
al
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0cr17ni7a1
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≤0.09
|
≤1.0
|
≤1.0
|
≤0.030
|
≤0.035
|
16-18
|
6.5-7.75
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0.75-1.5
|
(2)室溫力學(xué)性能?
熱處理制度
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бbmpa
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бsmpa
|
δ%
|
ψ%
|
硬度hb
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a狀態(tài)
|
|
|
|
|
≤229
|
th1050狀態(tài)
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≥1140
|
≥961
|
≥5
|
≥25
|
≥363
|
rh950狀態(tài)
|
≥1230
|
≥1030
|
≥4
|
≥10
|
≥388
|
①a狀態(tài)──1050℃,水冷或空冷;th1050狀態(tài)──1050℃,水冷或空冷,760℃、90min,空冷,565℃,90min、空冷;rh950狀態(tài)──1050℃、水冷或空冷,950℃、10mim、空冷,-73℃、冷處理8h、510℃、30-60mim、空冷