結(jié)構(gòu)用無(wú)錫不銹鋼無(wú)縫鋼管(GB/T14975-1994)
時(shí)間：2019-06-13
作者：無(wú)錫不銹鋼板
瀏覽：0
結(jié)構(gòu)用無(wú)錫不銹鋼無(wú)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(wú)錫不銹鋼熱軋(擠、擴(kuò))無(wú)縫鋼管的尺寸規(guī)格(mm)
|
壁厚
外徑
|
4.5
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
22
|
24
|
25
|
26
|
28
|
|
68
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
70
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
73
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
76
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
80
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
83
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
89
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
95
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
102
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
108
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
114
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
121
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
127
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
133
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
|
|
140
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
146
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
152
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
159
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
|
|
168
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
180
|
|
|
|
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
◎
|
|
|
|
|
|
|
|
|
194
|
|
|
|
|
◎
|
◎
|
◎
|
◎
久草视频华人在线观看|
国产精品黄色一级av|
亚洲人妻熟妇人妻熟妇|
亚洲男人天堂成人av|
精品蜜桃视频在线观看|
久久五月丁香中文字幕|
人妻少妇一区二区四区|
日本啪啪视频免费观看|
久久精品亚洲2020|
在线亚洲av免费观看|
欧美成人国产在线观看|
精品国产一区二区三区香蕉|
亚洲色大网站WWW永久网站|
亚洲综合成人精品国产|
国产在线一区二区视频免费观看|
亚洲三级中文字幕乱码|
美女黄页视频免费观看|
日本一区二区视频免费在线播放|
捆绑av一区二区三区|
97国产精品麻豆性色|
中文字幕一区二区三四区|
欧美精品亚洲精品日韩已满十八|
国产成人久久精品激情|
中文字幕精品在线人妻|
青草视频在线观看精品|
日韩亚洲AV无码三区二区不卡|
久久一区二区三区av|
精品女同一区二区三区不卡|
果冻国产传媒av国产免费|
精品少妇人妻AV无码专区|
亚洲欧美另类制服诱惑|
麻豆av一区二区天堂|
久久伊人少妇熟女大香线蕉|
人妻中文字幕一区二区免费|
欧美国产精品日韩一区二区|
国产精品剧情一区二区三区av
|
亚洲综合国产成人丁香五月激情|
无码精品久久一区二区三区|
日韩欧美国产三级在线|
日本在线中文字幕三区|
免费A级毛片无码蜜芽欣赏网|
|