結(jié)構(gòu)用無錫不銹鋼無縫鋼管(GB/T14975-1994)
(1)尺寸規(guī)格見表1、表2。
(2)允許偏差見表4。
(3)牌號(hào)和化學(xué)成分見表3。
(4)力學(xué)性能見表5。
(5)用途適于一般結(jié)構(gòu)及機(jī)械結(jié)構(gòu)用。
表1 結(jié)構(gòu)用無錫不銹鋼熱軋(擠、擴(kuò))無縫鋼管的尺寸規(guī)格(mm)
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壁厚
外徑
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4.5
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
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18
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19
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20
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22
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24
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25
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26
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28
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68
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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70
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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|
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73
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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|
76
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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80
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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83
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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89
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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|
95
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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102
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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108
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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|
114
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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|
121
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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127
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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133
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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140
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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146
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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152
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◎
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◎
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◎
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◎
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◎
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◎
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159
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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168
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◎
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◎
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◎
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◎
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◎
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◎
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180
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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◎
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194
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◎
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◎
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