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Roostevabast terasest torude hulgimüük – kvaliteetsed kaubad usaldusväärsest Hiina tehasest

Stainless steel pipes are mainly divided into two categories: seamless stainless steel pipes and welded stainless steel pipes. Their shapes include round, square, rectangular, and oval pipes. According to their uses, they can be divided into industrial fluid pipes, boiler heat-resistant pipes, precision instrument pipes, building decoration pipes, and sanitary food-grade pipes. Commonly used materials include 201, 304, 316L, 321, 310S, and 2205.

Stainless steel pipes have outstanding practical advantages. They have strong rust and corrosion resistance, are not afraid of acids, alkalis, humidity, and coastal salt spray environments, and are not easily oxidized and damaged. They have excellent high and low temperature resistance, stable performance under cold and hot environments, and are not easily deformed or cracked. The inner wall of the pipe is smooth, resulting in low resistance to the transported medium, preventing scaling and blockage, and ensuring high flow efficiency. The material is safe, non-toxic, clean, and hygienic, suitable for drinking water, food, and pharmaceutical transportation. They have high overall mechanical strength, strong pressure resistance, are durable, and have a service life far exceeding that of ordinary pipes. They are also easy to cut and weld, convenient to install, and have low maintenance costs. They are widely used in many fields such as chemical, heating, municipal plumbing, machinery equipment, and environmental protection engineering.


Comparison Table of Common Stainless Steel Welded Pipe Material Parameters

Material Types:

Core Performance Characteristics

Applicable Temperatures

Main Application Scenarios

Value for money

201

Weak rust resistance, good toughness, easy to process, moderate corrosion resistance

Normal Room Environment

Building decoration, railings, shelves, general household pipe fittings

Lowest price

304

Excellent overall corrosion resistance, strong versatility, easy to weld and form

≤450℃

Water supply and drainage pipes, food processing pipes, general industrial fluid pipes

Highest value for money

316L

Molybdenum-added corrosion resistance, strong resistance to chloride ions, acids, and alkalis

≤500℃

Chemical fluids, seawater transportation, medical equipment pipe fittings

Moderate to high price

321

Titanium-containing structure stabilizes, resists intergranular corrosion, good weldability

≤600℃

Boiler pipes, heating pipes, high-temperature welded pipe fittings

High price

309S

Excellent high-temperature resistance and oxidation resistance

900-980℃

High-temperature flues, heat treatment furnace piping, heat-resistant air ducts

Relatively high price

310S

Ultra-high temperature resistance, top-tier oxidation resistance

1000-1150℃

Incinerator pipes, high-temperature kiln pipe fittings, high-temperature exhaust gas pipes

Extremely high price

2205 Duplex

High strength, resistant to stress corrosion and high-chlorine corrosion

Medium-High Temperature and Strong Corrosion Environment

Desulfurization pipes, marine engineering, high-salinity wastewater transportation pipes

High-end and expensive

Stainless Steel PipeStainless Steel PipeStainless Steel Pipe


What is the price of a 20-foot stainless steel pipe?

For stainless steel pipes of the same material and outer diameter, the thicker the wall, the more material is used and the greater the weight, resulting in a higher price. Thin-walled pipes are cheaper, while thick-walled pipes are more expensive. For common 304 stainless steel welded pipes, a 25mm outer diameter and 2mm wall thickness costs approximately $16, a 50mm outer diameter and 3mm wall thickness costs approximately $49, and a 108mm outer diameter and 4mm wall thickness costs approximately $147. These prices are for reference only. Seamless pipes of the same specifications are slightly more expensive than welded pipes. Prices for all types of pipes steadily increase with increasing wall thickness.


What is the service life of stainless steel pipes?

The service life of stainless steel pipes is not fixed and depends mainly on the material grade, usage environment, wall thickness, processing technology, and maintenance. The typical range is from 10 years to over 100 years. Below are specific lifespan data and key influencing factors for different scenarios:


Service Life of Different Materials

Material

Dry indoor environment

Typical outdoor environment

Chlorine-containing environments (e.g., coastal areas)

Highly corrosive environments (chemical/seawater)

201

20-30 years

10-20 years

5-8 years (requires frequent maintenance)

1-3 years (not recommended)

304/304L

50-100 years +

30-50 years

15-30 years

5-15 years

316/316L

70-100 years +

40-60 years

30-50 years +

15-30 years +

321/310S

60-100 years +

40-50 years

25-40 years

20-30 years

2205 Duplex Stainless Steel

70-100 years +

50-70 years +

50 years +

30-50 years +

Stainless Steel PipeStainless Steel PipeStainless Steel Pipe


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2507 roostevabast terasest keevitatud toru

2507 roostevabast terasest keevitatud toru

2507 roostevabast terasest keevitatud torude tootjatel on lai valik tooteid, mille välisläbimõõt on 16–219 mm, seinapaksus 0,8–6 mm ja standardpikkus 6 meetrit. Soovi korral on saadaval kohandatud suurused ja pikkused. Toetatakse poleerimis- ja harjamisprotseduure. Neid torusid kasutatakse laialdaselt suitsugaaside väävlitustamise, merevee inseneri ja tugevalt söövitavate kemikaalide torustike jaoks.
2205 roostevabast terasest keevitatud toru

2205 roostevabast terasest keevitatud toru

2205 roostevabast terasest keevitatud torud on saadaval välisläbimõõduga 10-3000mm, seinapaksusega 0,5-30mm ja standardpikkusega 6m/12m. Keevitusprotsessid on peamiselt TIG/MIG, pinna peitsimine ja passiveerimine. Ühendusmeetodid hõlmavad keevitamist ja äärikuid. Kohandatud töötlemine on saadaval lühikeste ja usaldusväärsete tarneaegadega.
254 roostevabast terasest keevitatud toru

254 roostevabast terasest keevitatud toru

254 roostevabast terasest keevitatud toru, üldtuntud kui 254SMO keevitatud toru, on superausteniitse roostevabast terasest keevitatud toru tüüp, mis vastab UNS numbrile S31254 ja Saksa klassile 1.4547. See kuulub 6-molübdeeni superroostevaba terase seeriasse ja on oma nime saanud umbes 6% molübdeenisisalduse järgi. See ei ole dupleksteras, vaid kõrge legeeritud austeniitsest roostevaba teras, millel on äärmiselt kõrge vastupidavus punktkorrosioonile, pragukorrosioonile ja pingekorrosioonipragudele.
309S roostevabast terasest keevitatud toru

309S roostevabast terasest keevitatud toru

309S roostevabast terasest keevitatud torul on kõrge kroomi ja nikli sisaldus, suurepärane vastupidavus kõrgele temperatuurile ja see talub pikka aega kuni 1000 ℃ temperatuuri. Samuti on sellel tugev vastupidavus kõrgel temperatuuril oksüdatsioonile ja termilisele väsimusele. Kombineerides hea korrosioonikindluse ja keevitatavuse, ei ole see kõrge temperatuuriga keskkondades altid deformatsioonile ja pragunemisele. Juhtivad Hiina roostevabast terasest keevitatud torude tootjad soovitavad 309S-i sobivaks valikuks keskmise ja kõrge temperatuuriga tööstuslike torustike jaoks, nagu kõrge temperatuuriga suitsutorud, tööstuslikud ahjud ja kuumtöötlusseadmed.
321 roostevabast terasest keevitatud toru

321 roostevabast terasest keevitatud toru

321 roostevabast terasest keevitatud toru sisaldab titaani, mis takistab tõhusalt teradevahelist korrosiooni, muutes selle pärast keevitamist vähem rooste- ja pragunemisohtlikuks ning omab suurepärast termilist stabiilsust. Sellel on hea vastupidavus kõrgele temperatuurile, see ei deformeeru vahelduvates kuumades ja külmades tingimustes, sellel on hea plastilisus hõlpsaks töötlemiseks ja vormimiseks ning tugev väsimuskindlus. Hiina roostevabast terasest keevitatud torude tootjad soovitavad 321 materjali sobiva valikuna katla torustike, soojusseadmete ja kõrge temperatuuriga soojusvahetustorustike jaoks.
310S roostevabast terasest keevitatud toru

310S roostevabast terasest keevitatud toru

310S roostevabast terasest keevitatud toru peamine eelis on selle kõrge temperatuurikindlus, mis suudab pidevalt taluda 1150 ℃ ja lühiajaliselt 1200 ℃. Hiina juhtival innovatsioonitehasel on tavaliselt järgmised spetsifikatsioonid: välisläbimõõt 16–219 mm, seina paksus 0,8–5,0 mm, standardpikkus 6 meetrit ja see toetab kohandatud tellimusi.
Lingchuang on professionaalne Roostevabast terasest toru tootja ja tarnija Hiinas. Tere tulemast importima kvaliteetseid tooteid meie tehasest siia.
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