1:321 stainless 影林steel pipe. Seamless 街文steel tube (GB14976-2002) is used in t劇雪he manufacture of various struc章區tures of low and medium pressure boi資讀ler superheated steam pipe, steam 問也pipe, boiling water pipe and師近 boiler flue t到鄉ube, pipe and 和相brick arch tubes of hig內廠h quality carbon steel hot rolling and從又 cold drawin明姐g (rolling) seamless steel tube.

2: 321 stainless 購去steel pipe: mainly u商器sed for the manufacture of high and 風笑higher pressure steam機微 boiler pipes with high quality亮還 carbon steel, alloy s議店teel and stain習書less steel seamles村知s steel tubes, the boiler 煙鄉tubes often in high temperature a也睡nd high pressure pipe will work, oxi門笑dation and corrosion in high temperatu制什re flue gas and w這問ater vapor, therefore requirem鐘如ents of steel pipe have antioxidant p如秒roperties, high個山 strength, and ha嗎筆s good organizat區請ional stability, hydraulic吧懂 pillar.

The steel with 3:321 stainless st務習eel tube: 3043匠弟21316317310

4: 15MoG steel, 站好alloy structural steel tub少小e 20MoG, 12CrM空錢oG, 15CrMoG, 12Cr城睡2MoG, 12CrMoVG, 12Cr3MoVSi慢森TiB etc.; not rust in 飛冷addition to ensure the chemic視花al composition光票 and mechanic們飛al properties of he自請at resistant steel 1Cr18Ni9, 1Cr18Ni1喝鐘1Nb commonly used external high pressu是照re boiler tu弟服bes, one by one to do刀嗎 pressure test, will be expanding and f物亮lattening test.

5:321 stainless steel對少 pipe is delivered in heat treatment人門. In addition門國, the microst算他ructure, grain size and d店少ecarburization layer of the finish老做ed steel tube are a校跳lso required. Seamless pipes謝術 for geological drill車個ing and oil drillin女信g and control a美的re used for drilling u信白nderground wells to identify undergro厭子und structures, undergr火民ound water, oil,聽好 natural gas and mineral resourc如吃es.

Oil and natura車爸l gas exploitation is more dependent o師生n drilling. Geological drilling a姐志nd control of seamless ste能河el pipe for drilling is the main 章冷equipment for drilling, including core工請 pipe, core pi計如pe, casing, drill pipe and so on. Bec票吧ause the drilling pipe is going deep木個 into the depth of seve但樂ral kilometers, the 1Cr5Mo al嗎動loy tube.

6: the working condit務銀ion is very complicated, th民子e drill pipe under tens水懂ion, pressure, bending, torsi路件on and uneven impact load stress, but票樂 also by the mud and 筆討rock wear, therefore,問路 must have requir拿坐ed pipe streng電了th and hardness, wear好女 resistance and impact toughness enou船得gh, steel pipe for the u花書se of "DZ" (geology of Ch鄉村inese Pinyin 玩站prefix) plus 費器digital represent了書ative steel yield point, commonly 裡科used steel with DZ45線藍 45MnB, DZ50 40Mn2, 50Mn; 40Mn2Si厭河; DZ55 40Mn2Mo,呢近 DZ60 40MnMoB, DZ65 40Mn章冷VB; 27MnMoVB. The steel湖科 pipes are all delivered in heat 拍紅treatment.

Oil cracking pipe: pipe, 光少heat exchanger tube白呢 and seamless pi機理pe used in oil refinery. Commonly us通我ed high quality carbon ste信對el (10, 20), alloy steel (12湖鐵CrMo, 15CrMo), heat resistant s亮空teel (12Cr2Mo, 15Cr5Mo), stainle黑外ss steel (1Cr18Ni9, 1Cr18Ni9T小那i) manufacturing.

7: stainless s放請teel tube with 看裡various kinds 懂船of stainless steel, cold-rolled stainl科跳ess steel tu知綠be, stainless steel structur時笑al parts are widely used in如麗 petroleum, che刀男mical equipment and pipeline for 訊舊various purposes, should guarante鐘友e the chemical composition and個白 mechanical properties, wh老好o used steel to withstan也開d the pressure to ensure the water pre雨報ssure test. All kinds of speci工間al steel pipe should be輛輛 guaranteed acco也大rding to the stipulation匠遠s.

Welded pipe: also called pipe, which is從吃 formed by bending the農吃 steel plate or stee兒房l strip, and then we多他lded. According to the for農高m of weld, it i下理s divided into straight weld他了ed pipe and spiral welde影放d pipe.

Dividedagain general welded 雜快pipe, galvanized pipe, blowing pipe,小現 wire tube, pip到去e metric, roller tube, deep w兒美ell pump, 321 stainless steel tub雪子e, pipe, tube, auto transformer el厭短ectric welding tube, weld讀雨ing shaped tu又什be and spira機店l welded pipe.個拿

Alloy steel

8; 321 stainless steel tube is a k影中ind of long steel with hollow secti懂會on and no joint at the periphery. The 看在steel pipe has a hollow section熱月, which is used as a pipe for conve筆藍ying fluid, such as pipe如輛lines, such as oil, natura器科l gas, gas, water and some so北問lid materials.  The se報西amless tube is divided into hot roll秒視ed tube, cold友從 rolling tube, 子人cold drawing tube, extruding tub算學e and pipe jac現下king 16Mn seamless pipe醫計.