1.低壓流體輸送用焊接鋼管（GB/T3092-1993）也稱（chēng）一般焊管，俗稱黑管。是用於輸送水、煤氣、空氣、油和取暖蒸汽等一（yī）般較低壓力流體和其他用途的焊接鋼（gāng）管。鋼管接壁厚分（fèn）為（wéi）普通鋼管和加厚鋼管（guǎn）；接（jiē）管（guǎn）端形式（shì）分為不帶（dài）螺紋鋼管（光管）和帶螺紋鋼管。鋼管的規格用公稱口（kǒu）徑（mm）表示，公稱口徑是（shì）內徑的近似值。習慣上常用（yòng）英（yīng）寸表示，如11/2 等。低壓流體輸送用焊接鋼管除直（zhí）接（jiē）用於輸送（sòng）流體外，還大量用作低壓流（liú）體輸送用鍍鋅焊接鋼管（guǎn）的原管。
1. Welded steel pipes for low-pressure fluid transportation (GB/T3092-1993) are also called general welded pipes, commonly known as black pipes. It is a welded steel pipe used for conveying water, gas, air, oil, heating steam and other general low pressure fluids and other purposes. The wall thickness of steel pipe can be divided into ordinary steel pipe and thickened steel pipe, and the nozzle end can be divided into non-threaded steel pipe (smooth pipe) and threaded steel pipe. The specification of steel pipe is expressed by nominal diameter (mm), which is the approximate value of inner diameter. It is customarily expressed in inches, such as 11/2, etc. In addition to directly conveying fluids, welded steel pipes for low-pressure fluid conveying are also widely used as raw pipes for galvanized welded steel pipes for low-pressure fluid conveying. 2.低壓（yā）流體輸（shū）送用（yòng）鍍鋅焊接鋼管（GB/T3091-1993）也（yě）稱鍍鋅電焊鋼管，俗稱（chēng）白管。是用於輸送水、煤氣（qì）、空（kōng）氣、油及取暖蒸汽、暖水等一般（bān）較低壓力流（liú）體（tǐ）或其他用途的熱浸鍍鋅（xīn）焊接（jiē）（爐焊（hàn）或電（diàn）焊）鋼管。鋼管接壁厚分為普通鍍鋅鋼管和加厚鍍鋅鋼管（guǎn）；接管端（duān）形式分為不（bú）帶螺（luó）紋鍍鋅鋼管和帶螺紋鍍鋅鋼管。鋼管的規格用公稱口徑（mm）表示，公稱口徑是內徑的近（jìn）似值。習慣上常用英寸表示，如11/2 等。
2. Galvanized welded steel pipes for low pressure fluid transportation (GB/T3091-1993) are also called galvanized welded steel pipes, commonly known as white pipes. It is a hot dip galvanized welded (furnace welding or electric welding) steel pipe used for conveying water, gas, air, oil, heating steam, warm water and other generally low pressure fluids or other purposes. The wall thickness of steel pipe can be divided into common galvanized steel pipe and thick galvanized steel pipe, and the end of pipe can be divided into non-threaded galvanized steel pipe and threaded galvanized steel pipe. The specification of steel pipe is expressed by nominal diameter (mm), which is the approximate value of inner diameter. It is customarily expressed in inches, such as 11/2, etc.
3.普通碳素鋼電線套管（GB3640-88）是（shì）工業與民用建築、安裝機器設備等電氣（qì）安裝工程（chéng）中（zhōng）用於保護電線的鋼管。
3. Common Carbon Steel Wire Bushing (GB3640-88) is a steel pipe used to protect electric wires in industrial and civil buildings, installation machinery and equipment and other electrical installation projects.
4.直縫電焊鋼（gāng）管（YB242-63）是（shì）焊縫與鋼管縱向平行的鋼管。通常分為公製電焊鋼管（guǎn）、電焊薄（báo）壁管、變壓器冷卻油管等等。
4. Longitudinal welded steel pipe (YB242-63) is a steel pipe with longitudinal parallel weld and steel pipe. Usually it is divided into metric welded steel pipe, welded thin-walled pipe, transformer cooling oil pipe and so on.
5.承壓流體輸送用螺（luó）旋縫埋弧焊（hàn）鋼（gāng）管（SY5036-83）是以熱軋鋼帶卷作管坯，經常溫（wēn）螺旋成型，用雙麵埋弧焊法焊接，用於（yú）承壓流體輸（shū）送（sòng）的螺旋縫鋼管。鋼（gāng）管承壓能力強，焊接性能好，經（jīng）過各種嚴格的科學（xué）檢驗和測試，使用安全可靠。鋼管口徑大，輸送效率高，並可節約鋪設管（guǎn）線的投資。主要用於輸（shū）送石油（yóu）、天然（rán）氣（qì）的管線。
5. Spiral submerged arc welded pipe (SY5036-83) for pressure fluid transportation is a kind of spiral welded pipe with hot rolled steel strip coil as billet, which is spirally formed at normal temperature and welded by double-sided submerged arc welding. Steel pipe has strong pressure bearing capacity and good welding performance. It is safe and reliable to use after various strict scientific tests and tests. The steel pipe has large diameter, high conveying efficiency and saves investment in laying pipelines. It is mainly used for pipelines to transport oil and natural gas.
6.承壓（yā）流體輸送用螺旋縫高頻（pín）焊鋼管（SY5038-83）是以熱軋（zhá）鋼帶卷作管坯（pī），經常溫螺旋成（chéng）型（xíng），采用高頻搭接（jiē）焊法焊接的，用於承壓流體輸送的螺旋（xuán）縫高頻焊鋼管。鋼管承壓能力強，塑（sù）性好（hǎo），便（biàn）於焊接和加工成型；經過各種嚴格和科（kē）學檢驗和測試，使用安全可靠，鋼管口徑大，輸送效率高，並可節省鋪設管線的投（tóu）資。主（zhǔ）要用於鋪設輸送石油、天然氣等的管線。
6. The SY5038-83 spiral seam high frequency welded steel pipe for pressure fluid transportation is a high frequency spiral seam high frequency welded steel pipe for pressure fluid transportation, which is formed by hot rolled steel strip coil at regular temperature and welded by high frequency lap welding. The steel pipe has strong bearing capacity, good plasticity, and is easy to be welded and processed. Through various strict and scientific tests and tests, it is safe and reliable to use, large diameter of steel pipe, high transportation efficiency, and can save the investment of laying pipelines. It is mainly used for laying pipelines for oil and natural gas transportation.
7.一般低壓流體輸送用螺旋縫埋弧焊鋼管（SY5037-83）是以熱軋鋼帶卷作管坯，經常溫螺旋成型，采用雙麵自動埋弧焊（hàn）或單麵焊法製成的用於（yú）水、煤氣、空氣和蒸汽等一般（bān）低壓流體輸送用埋弧焊鋼管。
7. Spiral submerged arc welded steel pipe (SY5037-83) for low-pressure fluid transportation is a submerged arc welded steel pipe for general low-pressure fluid transportation, such as water, gas, air and steam, which is manufactured by double-sided automatic submerged arc welding or single-sided welding with hot-rolled steel strip coil as billet and spiral forming at normal temperature.
8.一般低壓流體輸送用螺旋縫高頻焊鋼管（SY5039-83）是以熱軋（zhá）鋼帶卷作管坯，經常溫螺旋成型，采用高頻搭接（jiē）焊法焊接（jiē）用於一般低（dī）壓流（liú）體輸送用螺（luó）旋縫高頻焊（hàn）鋼管。
8. Spiral seam high frequency welded steel pipes (SY5039-83) for low-pressure fluid transportation are usually formed by hot-rolled steel strip coil at normal temperature. High frequency lap welding is used to weld high frequency spiral seam welded steel pipes for general low-pressure fluid transportation.
9．樁用（yòng）螺旋焊縫鋼管（SY5040-83）是以熱軋鋼帶卷作管坯，經常溫螺旋成型，采用雙麵埋弧焊接或（huò）高頻焊（hàn）接（jiē）製（zhì）成的，用（yòng）於土木建築結構、碼頭、橋梁等基礎樁用鋼（gāng）管。
9. Spiral welded steel pipe for piles (SY5040-83) is made of hot rolled steel strip coil as tube blank, which is spirally formed at normal temperature and is welded by double-sided submerged arc welding or high frequency welding. It is used for steel pipe for foundation piles such as civil building structures, wharfs and bridges.
