SUS631不锈钢弹簧线,直条
sus631,17-7ph,s17700,0cr17ni7al17-7ph ,sus631,s17700,0cr17ni7al 产品规格: 轧材φ1.0-φ50 锻材φ50-φ190;车光棒.锻件加工 (方形,环件,异形环件,套筒)(按图纸)17-7ph ,sus631,s17700的国内牌号是0cr17ni7a1 (1) 化学成分%
钢号
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c
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si
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mn
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s
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p
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cr
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ni
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al
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0cr17ni7a1
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≤0.09
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≤1.0
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≤1.0
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≤0.030
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≤0.035
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16-18
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6.5-7.75
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0.75-1.5
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(2)室温力学性能
热处理制度
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бbmpa
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бsmpa
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δ%
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ψ%
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硬度hb
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a状态
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|
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≤229
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th1050状态
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≥1140
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≥961
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≥5
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≥25
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≥363
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rh950状态
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≥1230
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≥1030
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≥4
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≥10
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≥388
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①a状态──1050℃,水冷或空冷;th1050状态──1050℃,水冷或空冷,760℃、90min,空冷,565℃,90min、空冷;rh950状态──1050℃、水冷或空冷,950℃、10mim、空冷,-73℃、冷处理8h、510℃、30-60mim、空冷