结构用不锈钢无缝钢管

中华人民共和国国家标准

GB/T 14975-1994

结构用不锈钢无缝钢管

1994—06—30批准 1995—01—01 实施

国家技术监督局 发布

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项 次

项 次........................................................................................................2 1 主题内容与适用范围...........................................................................3 2 引用标准..............................................................................................4 3 尺寸、外形及重量...............................................................................5

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1 主题内容与适用范围

本标准规定了结构用不锈钢无缝钢管的尺寸、外形、质量（重量）、技术要求、试验方法、检验规则及包装、标志和质量证明书。

本标准适用于一般结构及机械结构用不锈钢无缝钢管。

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2 引用标准

GB 222 钢的化学分析用试样取样法及成品化学成分允许偏差 GB 223 钢铁及合金化学分析方法 GB 228 金属拉伸试验法 GB 241 金属管液压试验方法 GB 242金属管扩口试验方法 GB 244 金属管弯曲试验方法 GB 246 金属管压扁试验方法

GB 2102 钢管的验收、包装、标志及质量证明书 GB 4163 不锈钢管超声波探伤方法 GB 4334.1 不锈钢 10%草酸浸蚀试验方法 GB 4334.2 不锈钢 硫酸-硫酸铁腐蚀试验方法 GB 4334.3 不锈钢 65%硝酸腐蚀试验方法 GB 4334.4 不锈钢 硝酸-氢氟酸腐蚀试验方法 GB 4334.5 不锈钢 硫酸-硫酸铜腐蚀试验方法 GB 4334.6 不锈钢 5%硫酸腐蚀试验方法 GB 6397 金属拉伸试验试样 GB 7735 钢管涡流探伤方法

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3 尺寸、外形及重量

3.1 外径和壁厚

3.1.1 钢管分热轧（挤、扩）和冷拔（轧）两种。

热轧（挤、扩）钢管的外径和壁厚应符合表1的规定、冷拔（轧）钢管的外径和壁厚应符合表2的规定。

根据需方要求，经供需双方协议

表1mm

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@外径\\壁厚 68 70 73 76 80 83 89 95 102 108 114 121 127 133 140 146 152 159 168 180 194 219 245 237 325 351 377 426

4.5 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

5 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

6 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

7 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

8 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

9 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

10

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

11 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

12 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

13

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

14

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

15

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

16

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

17

◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

18 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎

19 ◎ ◎ ◎ ◎ ◎ ◎ ◎

20 ◎ ◎ ◎ ◎ ◎ ◎ ◎

22 ◎ ◎ ◎ ◎ ◎ ◎

24 ◎ ◎ ◎ ◎ ◎ ◎

25 ◎ ◎ ◎ ◎ ◎

26 ◎ ◎ ◎ ◎ ◎

28 ◎ ◎ ◎

@ 筑 龙 网 www.sinoaec.com 《结构用不锈钢无缝钢管》 资料编号：GB/T 14975-1994 @注：◎表示热轧钢管规格。

表2mm

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外径

\\1.0 1.2 1.4 1.5 1.6 2.0 2.2 2.5 2.8 3.0 3.2 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10 11 12 13 14 15 壁厚

10 ● ● ● ● ● ● ● ● 11 ● ● ● ● ● ● ● ●

12 ● ● ● ● ● ● ● ● ● ● 13 ● ● ● ● ● ● ● ● ● ●

14 ● ● ● ● ● ● ● ● ● ● ● ● 15 ● ● ● ● ● ● ● ● ● ● ● ●

16 ● ● ● ● ● ● ● ● ● ● ● ● ● 17 ● ● ● ● ● ● ● ● ● ● ● ● ●

18 ● ● ● ● ● ● ● ● ● ● ● ● ● ● 19 ● ● ● ● ● ● ● ● ● ● ● ● ● ● 20 ● ● ● ● ● ● ● ● ● ● ● ● ● ●

21 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 22 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 23 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

24 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

25 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 27 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

28 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

30 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 32 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 34 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 35 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 36 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 38 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 40 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

42 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

45 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 48 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

50 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 51 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 53 ● ●