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(jiàn)表1、表2。
(2)允許偏差見(jiàn)表4。
(3)牌號(hào)和化學(xué)成分見(jiàn)表3。
(4)力學(xué)性能見(jiàn)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
|
|
|
|
|
◎
|
◎
|
◎
|
◎
丰满又黄又爽少妇毛片|
人妻人人妻A乱人伦青椒视频|
中文字幕人妻无码专区APP|
国产精华av午夜在线观看|
老熟女hdxx老小配|
日韩女同在线二区三区|
精品一区二区三区在线观看|
夜夜添无码试看一区二区三区|
中文字幕久久精品无码|
人妻丰满熟妇无码区免费|
亚洲 另类 日韩 制服 无码|
精品国产黑色丝袜高跟鞋|
樱花草在线社区www中国中文|
久久久久精品老熟女国产精品|
中文字幕精品一二三四五六七八|
午夜精品久久久久成人|
成全影院电视剧在线观看|
欧美亚洲日本国产综合在线美利坚|
无码精品人妻一区二区三区98|
日韩插啊免费视频在线观看|
国精产品自线六区|
久久99久久99小草精品免视看|
国产大片黄在线观看私人影院|
国产成人啪精品视频免费网|
热RE99久久精品国产66热|
久久精品中文騷妇女内射|
久久精品国产亚洲一区二区|
欧美怡红院免费全部视频|
欧美人妻少妇精品久久黑人|
性做久久久久久免费观看|
国产精品成年片在线观看|
亚洲成A人无码亚洲成A无码AV|
亚洲AV成人无码网站|
无人区码一码二码三码四码|
国产精品无码免费专区午夜|
国产欧美国产综合每日更新|
狠狠五月激情六月丁香|
理论片午午伦夜理片影院|
60老熟女多次高潮露脸视频|
久久婷婷五月综合色高清|
亚洲色最新高清AV网站|
|