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Paip Keluli Tahan Karat Borong – Stok Berkualiti dari Terus Kilang China yang Boleh Dipercayai

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 Paip Kimpalan Keluli Tahan Karat

2507 Paip Kimpalan Keluli Tahan Karat

Pengeluar paip dikimpal keluli tahan karat 2507 mempunyai inventori yang mencukupi, dengan diameter luar antara 16-219mm, ketebalan dinding dari 0.8-6mm, dan panjang standard 6 meter. Saiz dan panjang tersuai disediakan atas permintaan. Rawatan menggilap dan memberus disokong. Paip ini digunakan secara meluas dalam penyahsulfuran gas serombong, kejuruteraan air laut, dan saluran paip untuk bahan kimia yang sangat menghakis.
2205 Paip Kimpalan Keluli Tahan Karat

2205 Paip Kimpalan Keluli Tahan Karat

Paip dikimpal keluli tahan karat 2205 boleh didapati dalam diameter luar 10-3000mm, ketebalan dinding 0.5-30mm, dan panjang standard 6m/12m. Proses kimpalan terutamanya TIG/MIG, dengan penjerukan permukaan dan pempasifan. Kaedah sambungan termasuk kimpalan dan bebibir. Pemprosesan tersuai tersedia dengan masa penghantaran yang singkat dan boleh dipercayai.
254 Paip Kimpalan Keluli Tahan Karat

254 Paip Kimpalan Keluli Tahan Karat

Paip dikimpal keluli tahan karat 254, biasanya dikenali sebagai paip dikimpal 254SMO, adalah sejenis paip dikimpal keluli tahan karat super austenit, sepadan dengan nombor UNS S31254 dan gred Jerman 1.4547. Ia tergolong dalam siri keluli tahan karat super 6-molibdenum dan dinamakan untuk kandungan molibdenumnya yang lebih kurang 6%. Ia bukan keluli dupleks, tetapi keluli tahan karat austenit aloi tinggi, mempunyai rintangan yang sangat tinggi terhadap kakisan pitting, kakisan celah dan retakan kakisan tegasan.
Paip Kimpalan Keluli Tahan Karat 309S

Paip Kimpalan Keluli Tahan Karat 309S

Paip dikimpal keluli tahan karat 309S mempunyai kandungan kromium dan nikel yang tinggi, rintangan suhu tinggi yang sangat baik, dan boleh menahan suhu sehingga 1000 ℃ untuk tempoh yang lama. Ia juga mempamerkan rintangan yang kuat terhadap pengoksidaan suhu tinggi dan kelesuan haba. Menggabungkan rintangan kakisan dan kebolehkimpalan yang baik, ia tidak terdedah kepada ubah bentuk dan retak dalam persekitaran suhu tinggi. Pengeluar paip dikimpal keluli tahan karat terkemuka China mengesyorkan 309S sebagai pilihan yang sesuai untuk saluran paip industri bersuhu sederhana dan tinggi seperti saluran asap bersuhu tinggi, tanur industri dan peralatan rawatan haba.
Paip Kimpalan Keluli Tahan Karat 321

Paip Kimpalan Keluli Tahan Karat 321

Paip dikimpal keluli tahan karat 321 menggabungkan titanium, dengan berkesan menghalang kakisan antara butiran, menjadikannya kurang terdedah kepada karat dan retak selepas kimpalan, dan mempamerkan kestabilan haba yang sangat baik. Ia mempunyai rintangan suhu tinggi yang baik, tidak mudah berubah bentuk di bawah keadaan panas dan sejuk berselang-seli, mempunyai keplastikan yang baik untuk pemprosesan dan pembentukan yang mudah, dan rintangan keletihan yang kuat. Pengeluar paip dikimpal keluli tahan karat Cina mengesyorkan bahan 321 sebagai pilihan yang sesuai untuk paip dandang, peralatan haba dan saluran paip pertukaran haba suhu tinggi.
Paip Kimpalan Keluli Tahan Karat 310S

Paip Kimpalan Keluli Tahan Karat 310S

Kelebihan teras paip dikimpal keluli tahan karat 310S ialah rintangan suhu tinggi, mampu menahan 1150 ℃ secara berterusan dan tahan jangka pendek 1200 ℃. Kilang Inovasi terkemuka di China biasanya menyimpan spesifikasi berikut: diameter luar 16-219mm, ketebalan dinding 0.8-5.0mm, panjang standard 6 meter, dan menyokong pesanan tersuai.
Lingchuang ialah pengilang dan pembekal Paip Keluli Tahan Karat profesional di China. Selamat datang untuk mengimport produk berkualiti dari kilang kami di sini.
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