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Lupum Steel Pipe - Quality business days from Reliable China Factory Direct

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 Steel iuncta Pipe

2507 Steel iuncta Pipe

2507 chalybe incorrupta iuncta fistula fabricantes amplum inventarium habent, diametris exterioribus ab 16-219mm vndique, muri crassitudinibus ab 0,8—6mm, et vexillum longitudinum 6 metrorum. Magnitudinum et longitudinum consuetudo in promptu sunt postulante. Curationes poliendi et poliendi sustentantur. Hae fistulae late utuntur in desulfurizatione gasi fluviatili, machinatione marina, et pipelines pro oeconomiae mordentibus graviter.
2205 Steel iuncta Pipe

2205 Steel iuncta Pipe

2205 tibiae chalybis immaculatae iunctae praesto sunt in diametris exterioribus 10-3000mm, muri crassitudinum 0,5-30mm, et mensurae longitudinum 6m/12m. Processus glutino praesertim sunt TIG/MIG, cum superficiebus servantur et passivus. Connexionis modi sunt glutino et flanges. Consuetudo processus praesto est cum brevibus et certis temporibus partus.
CCLIV Steel iuncta Pipe

CCLIV Steel iuncta Pipe

254 fistula immaculata ferro iuncta, vulgo 254SMO fistula conflata, est genus super austeniticum incorruptum tibiam ferro iunctam, numero UNS numero S31254 et gradu Germanico 1.4547 respondentem. Pertinet ad seriem 6-molybdaeni super ferro immaculatam et pro sua circiter 6% molybdeno contenta nominatur. Duplex non est chalybs, sed summus admiscetur austeniticum chalybem immaculatum, valde editum resistentiam habens ad corrosionem, rimas corrosionem, et corrosionem accentus crepuit.
309S Steel iuncta Pipe

309S Steel iuncta Pipe

309S fistula immaculata ferro iuncta habet altum chromium et nickel contentum, excellentem resistentiam summus temperatus, et temperaturae usque ad 1000℃ tempora protracta sustinere potest. Etiam fortis resistentiam praebet ad oxidatio summus temperatus et defatigationem scelerisque. Coniungens bonum corrosionis resistentiae et weldabilitatis, non est pronum ad deformationem et crepuit in ambitus summus temperatus. Sinenses immaculatam ferrum ducentes fistulam iunctam fabricatores suadent 309S ut apta electio ad fistulas medias et summus temperaturas industriales ut flues summus temperatus, latera industrialis, et apparatus curatio caloris.
CCCXXI Steel iuncta Pipe

CCCXXI Steel iuncta Pipe

321 fistulam ferro immaculatam conflati titanium incorporat, intergranulare efficaciter inhibens corrosionem, faciens eam rubiginem et crepitum post glutino minus obnoxium, ac praestantem thermarum stabilitatem exhibens. Habet bonam resistentiam summus temperatus, sub vicis calidis et frigidis non facile deformatur, habet bonam plasticitatem pro facili processui et formando, et resistendo fortes lassitudine. Sinenses chalybem inactum iuncta organo fabricatores commendant 321 materiam ut aptam electionem fistulae, fistulae, instrumentorum scelestarum, et summus caloris temperatus fistularum commutationum.
310S Steel iuncta Pipe

310S Steel iuncta Pipe

Medium commodum 310S fistulae ferro immaculatae iuncta est eius resistentiae caliditas, quae potest continue resistere 1150℃ et breve tempus sustinere 1200℃. Innovationem Factory ducens in Sinis typice trahit sequentes specificationes: diametri exterioris 16-219mm, parietis crassitudinis 0.8-5.0mm, vexillum longitudinis 6 metrorum, et ordines consuetudines sustinet.
Lingchuang professio est Steel Pipe fabrica et elit in Sinis. Grata importare qualitatem productorum ex officina nostra hic.
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