您知道方管的執行標準和用途范圍是怎樣的嗎？下面濟南方管生產廠家就根據有關標準為您講解內容：

Do you know the executive standard and scope of use of square tube? The Jinan square tube manufacturer will explain the content to you according to relevant standards:

一、低壓流體輸送用鍍鋅焊接方管，標準號為GB/T3091-2008。代表材質Q235A,Q235BQ345B等。主要用于輸送水、煤氣、空氣、油和取暖熱水或蒸汽，用途限于一般較低壓力流體。

1、 Galvanized welded square pipe for low pressure fluid transmission, standard number is GB/T3091-2008. Representative materials: Q235A, Q235BQ345B, etc. It is mainly used to transport water, gas, air, oil and heating hot water or steam, and is limited to general low pressure fluids.

二、低壓流體輸送用鍍鋅焊接方管，標準號為GB/T3092-2008。代表材質同上。主要用于輸送水、煤氣、空氣、油和取暖熱水或蒸汽等一般較低壓力流體，方管外表采用熱鍍鋅或是冷鍍鋅防腐工藝。

2、 Galvanized welded square pipe for low pressure fluid transmission, standard number is GB/T3092-2008. The representative material is the same as above. It is mainly used to transport water, gas, air, oil, heating hot water or steam and other generally low pressure fluids. The surface of the square pipe adopts hot galvanizing or cold galvanizing anti-corrosion process.

三、礦用流體輸送焊接方管，標準號我GB/T14291-2000。代表材質Q235A、B級鋼.主要用于礦山壓風、排水、軸放瓦斯用直縫焊接方管。

3、 The standard number of welded square pipe for mining fluid transmission is GB/T14291-2000. The representative material is Q235A and B grade steel. It is mainly used for straight seam welded square pipes for mine air pressure, drainage and axial gas drainage.

四、低壓流體輸送用大直徑電焊方管，標準號為GB/T14980-1994。代表材質Q235AB級。主要用于輸送水、污水、煤氣、空氣、采暖蒸汽等低壓流體。

4、 Large diameter electric welded square pipe for low pressure fluid transportation, standard number is GB/T14980-1994. The representative material is Q235AB. It is mainly used to transport low pressure fluids such as water, sewage, gas, air, heating steam, etc.

五、機械結構用不銹鋼焊接方管，標準號為GB/T12770-1991。代表材質0Cr13、1Cr17、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb等。主要用于機械、汽車、自行車、家具、賓館和飯店裝飾及其他機械部件與結構件。

5、 Stainless steel welded square tube for mechanical structure, standard number is GB/T12770-1991. Representative materials are 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, etc. It is mainly used for machinery, automobiles, bicycles, furniture, hotel and restaurant decoration and other mechanical parts and structural parts.

六、流體輸送用不銹鋼焊接方管，標準號為GB/T12771-1991。代表材質為0Cr13、0Cr19Ni9、00Cr19Ni11、00Cr17、0Cr18Ni11Nb、0017Cr17Ni14Mo2等。主要用于輸送低壓腐蝕性介質。

6、 Stainless steel welded square pipe for fluid transportation, standard number is GB/T12771-1991. Representative materials are 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, etc. It is mainly used to transport low pressure corrosive media.

七、低壓輸送用螺旋方管（石油部標準）標準號為SY/T5037-2008。代表材質為Q235BQ345B等碳鋼材質。主要用于低壓輸送水，石油，天然氣，供暖等管道。

7、 The standard number of spiral square pipe for low-pressure transportation (standard of the Ministry of Petroleum) is SY/T5037-2008. The representative material is Q235BQ345B carbon steel. Mainly used for low pressure water, oil, natural gas, heating and other pipelines.

方管的執行標準和用途范圍就講解到這里了，您對此有什么疑惑可以隨時來我們這邊http://www.dyhongsenfg.com咨詢了解！

The implementation standards and scope of use of Fang Guan are explained here. If you have any doubts about this, you can come to us at any time http://www.dyhongsenfg.com Ask about it!