Active Member
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[China]
Address: Guangyi Road, Wuxi, Jiangsu Province，China.
Contact name:Christina
Wuhan Longgang Pressure Pipeline Co., Ltd. |
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316L stainless steel pipe description
Stainless Steel Pipe TP321 Stainless Steel Pipe TP321Stainless Steel Seamless Pipe TP321 Stainless Steel Welded Pipe
321 stainless steel pipe is made of 321 stainless steel.
1. 321 stainless steel pipe Seamless steel pipe (GB14976-2002) is a
high-quality carbon structural steel hot rolled and cold drawn
(rolled) seamless steel pipe used to manufacture superheated steam
pipes, boiling water pipes for low and medium pressure boilers of
various structures and superheated steam pipes, large smoke pipes,
small smoke pipes and arch brick pipes for locomotive boilers.
2. 321 Stainless steel pipe: it is mainly used to manufacture
high-quality carbon structural steel, alloy structural steel and
stainless heat-resistant seamless steel pipes for steam boiler
pipes with high pressure and above. These boiler pipes often work
under high temperature and high pressure, and the pipes will be
oxidized and corroded under the action of high-temperature flue gas
and water steam. Therefore, the steel pipes are required to have
high endurance strength, high oxidation resistance and good
organizational stability, Hydraulic strut pipe.
3. 321 stainless steel pipe is made of 304 321 316 317 310, etc
4. Alloy structural steel pipe steel grades 15MoG, 20MoG, 12CrMoG,
15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, etc; The common
1Cr18Ni9 and 1Cr18Ni11Nb high-pressure boiler tubes made of
stainless heat resistant steel shall be subject to hydrostatic
test, flaring and flattening test one by one in addition to
ensuring the chemical composition and mechanical properties.
5. 321 stainless steel pipes are delivered in heat treatment state.
In addition, there are also certain requirements for the
microstructure, grain size and decarburization layer of the
finished steel pipe. Seamless steel pipe for geological drilling
and oil drilling control; In order to explore the underground rock
structure, groundwater, oil, natural gas and mineral resources,
drilling rigs are used to drill wells.
Oil and natural gas exploitation can not be separated from well
drilling. Seamless steel pipes for oil drilling for geological
drilling control are the main equipment for drilling, mainly
including outer core pipes, inner core pipes, casings, drill pipes,
etc. As the drilling pipe needs to work at a depth of several
thousand meters, 1cr5mo alloy pipe.
6. The working conditions are extremely complex. The drill pipe
bears the stress effects of tension, compression, bending, torsion
and unbalanced impact load, and is also subject to mud and rock
abrasion. Therefore, the pipe must have sufficient strength,
hardness, abrasion resistance and impact toughness. The steel pipe
is represented by "DZ" (Chinese phonetic prefix of geology) plus a
number representing the steel yield point. The commonly used steel
grades are 45MnB and 50Mn of DZ45; 40Mn2 and 40Mn2Si of DZ50;
40Mn2Mo and 40MnVB of DZ55; 40MnMoB of DZ60, 27MnMoVB of DZ65. The
steel pipes are delivered in heat treatment state.
Petroleum cracking pipe: used for furnace pipe, heat exchanger pipe
and seamless pipe for pipeline in petroleum refinery. It is usually
made of high-quality carbon steel (10, 20), alloy steel (12CrMo,
15CrMo), heat-resistant steel (12Cr2Mo, 15Cr5Mo) and stainless
steel (1Cr18Ni9, 1Cr18Ni9Ti).
7. Stainless steel pipe: hot-rolled and cold-rolled stainless steel
pipes are widely used in petroleum and chemical equipment and pipes
and stainless steel structural parts for various purposes. In
addition to ensuring chemical composition and mechanical
properties, all steel pipes used to withstand fluid pressure shall
be qualified in hydrostatic test. Various special steel pipes shall
be guaranteed according to the specified conditions.
Welded steel pipe: also known as welded pipe, it is formed by
bending steel plate or steel strip and then welded. It can be
divided into straight seam welded pipe and spiral welded pipe
according to the weld form.
It can be divided into general welded pipe, galvanized welded pipe,
oxygen blowing welded pipe, wire casing, metric welded pipe, idler
pipe, deep well pump pipe, 321 stainless steel pipe, automobile
pipe, transformer pipe, thin wall electric welding pipe, special
shaped electric welding pipe and spiral welded pipe.
Alloy steel
8. 321 stainless steel pipe is a kind of long steel with hollow
section and no seams around. The steel pipe has a hollow section
and is widely used as a pipeline for conveying fluids, such as oil,
natural gas, gas, water and some solid materials. Seamless pipe is
divided into hot rolled pipe, cold rolled pipe, cold drawn pipe,
extruded pipe and pipe jacking 16Mn seamless pipe.
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| Specification table of seamless steel pipe | |||||
| Type | Specification | Specification | Specification | Specification | Remark |
| Specification of seamless steel pipe | 20*2-5 | 114*4-22 | 377*6-110 | 1110*10-80 | Seamless steel pipe can accept non-standard customization |
| 25*2-6 | 133*4-22 | 426*8-140 | 1120*12-60 | ||
| 30*3-6 | 140*4-45 | 457*8-140 | 2000*10-50 | ||
| 38*2-6 | 159*4-45 | 480*8-150 | 6*0.5-5 | ||
| 42*3-8 | 168*4-45 | 530*8-150 | 8*0.5-5 | ||
| 45*3-8 | 180*4-48 | 580*8-150 | 10*0.5-5 | ||
| 51*3-8 | 194*6-48 | 630*8-150 | 12*0.5-5 | ||
| 57*3-16 | 203*6-70 | 720*8-150 | 14*0.5-5 | ||
| 60*3-18 | 219*6-70 | 820*8-150 | 15*0.5-5 | ||
| 76*3-18 | 273*6-70 | 920*8-100 | 16*0.5-5 | ||
| 89*3-18 | 299*6-80 | 1020*8-110 | 18*0.5-5 | ||
| 95*6-22 | 325*6-100 | 1040*8-110 | |||
| 108*4-22 | 351*6-110 | 1060*8-110 | |||
Common problem
1. Are you a manufacturing company or a trading company?
We are manufacturing, we have 20 years of experience in domestic
supply of metal materials and products.
2. What services can you provide?
We can provide various metal materials and products, as well as
other process services.
3. Can you provide free samples?
We can provide free samples, but the express freight of samples
should be provided by you.
4. If we place an order, how fast will your delivery time be?
7-10 days after receiving your deposit is normal.
5. What payment terms can you accept?
We can now accept TT, Western Union remittance or negotiation.
JIS Stainless Steel Pipe -1
