Pipa Baja Dilas Stainless : 304 / 304L ,316 / 316L

Stainless-Welded-Steel-Pipe.jpg

Stainless steel welded pipes are made from stainless steel sheets or strips that are rolled into the desired shape, welded along the seam, and then cut to the desired length. These pipes are used in various industries due to their corrosion resistance, kekuatan tinggi, dan daya tahan. Stainless welded steel pipes are available in different grades, ukuran, and thicknesses, depending on the specific requirements of the application.

Aplikasi:

Stainless steel welded pipes are used in a wide range of applications, termasuk:

  1. Konstruksi: They are used in aplikasi struktural, such as building frames, pegangan tangan, dan struktur pendukung.
  2. Oil and gas: Stainless steel pipes are used in the oil and gas industry due to their corrosion resistance and ability to withstand tekanan tinggi.
  3. Chemical and petrochemical: These pipes are used in chemical and petrochemical plants for transporting corrosive fluids and gases.
  4. Food and beverage: Stainless steel pipes are commonly used in the food and beverage industry due to their hygienic properties and resistance to corrosion caused by acidic or alkaline substances.
  5. Water treatment: Stainless steel pipes are used in water treatment facilities for transporting water and wastewater.
  6. Otomotif: These pipes are used in various automotive components, seperti sistem pembuangan, saluran bahan bakar, and hydraulic systems.
  7. Pharmaceutical: Stainless steel pipes are used in pharmaceutical manufacturing plants for transporting chemicals and fluids.

Keuntungan:

  • Tahan korosi: Stainless steel has a kandungan kromium of at least 10.5%, which forms a protective layer of chromium oxide on the surface, providing excellent resistance to rust and corrosion.
  • Kekuatan tinggi: Stainless steel welded pipes can withstand high pressures and tekanan mekanis, making them suitable for various applications.
  • Daya tahan: Stainless steel is resistant to wear, making the pipes long-lasting and cost-effective.
  • Hygienic properties: The smooth surface of stainless steel pipes prevents the buildup of bacteria and other contaminants, making them suitable for food, beverage, and pharmaceutical applications.
  • Aesthetics: Stainless steel pipes have A sleek and modern appearance, making them an attractive choice for architectural and design applications.

When selecting stainless steel welded pipes, consider factors such as the type of application, required corrosion resistance, peralatan mekanis, and budget, untuk memastikan Anda memilih kelas dan spesifikasi yang sesuai untuk proyek Anda.

300seri:301,302,304,304Cu,303,303Se,304L,305,307,308,308L,309,309S,310,310S,316,316L,321.

There are several grades of stainless steel used for welded pipes, depending on the application and required properties. The most common grades can be divided into three main categories: austenitic, ferritic, and duplex stainless steel. Here are some of the popular grades in each category:

Austenitic Stainless Steel:

Austenitic stainless steel is the most widely used type of stainless steel due to its excellent corrosion resistance, sifat mampu bentuk, dan kemampuan las. Common austenitic grades for welded pipes include:

  1. 304 / 304L: This is one of the most frequently used stainless steel grades for welded pipes. It offers good corrosion resistance and is suitable for various applications, including food and beverage, farmasi, and water treatment.
  2. 316 / 316L: This grade has an increased molybdenum content, providing better corrosion resistance in chloride environments than 304. It is commonly used in marine and chemical processing applications.
  3. 321: Kelas ini mengandung titanium, which stabilizes it against intergranular corrosion caused by chromium carbide precipitation. It is often used in high-temperature applications.

Baja Tahan Karat Feritik:

Ferritic stainless steel has lower corrosion resistance than austenitic stainless steel but offers good strength and is more cost-effective. Some common ferritic grades for welded pipes include:

  1. 409: This is a low-cost, low-chromium ferritic stainless steel commonly used in automotive exhaust systems due to its resistance to high temperatures and corrosion.
  2. 430: This grade has higher kandungan kromium than 409, providing better corrosion resistance. It is used in applications like architectural trim, appliances, and automotive components.

Duplex Stainless Steel:

Duplex stainless steel combines the properties of both austenitic and ferritic stainless steel, resulting in a material with high strength and good corrosion resistance. Some common duplex grades for welded pipes include:

  1. 2205: This is a popular duplex stainless steel nilai, offering good corrosion resistance, kekuatan tinggi, and excellent resistance to stress corrosion cracking. It is commonly used in chemical processing, minyak dan gas, dan aplikasi kelautan.
  2. 2507: This is a super duplex stainless steel dengan higher chromium, molibdenum, and nitrogen content, providing increased corrosion resistance and strength. It is used in applications like desalination plants, pemrosesan kimia, dan anjungan lepas pantai.

These are just some of the many stainless steel grades available for welded pipes. Selecting the appropriate grade depends on factors such as the specific application, required corrosion resistance, peralatan mekanis, Dan pertimbangan biaya.

 

Available Welded Stainless Steel Pipe Grades

Nama Produk Executive Standard Dimensi Steel Code / Kualitas baja
Industrial Pipes ASTM A312, A358, A778, JIS G3459 DARI: 1/4″~40 TP304, TP304L, TP316L, SUS304TP
WT: SCH5S~SCH80S
Tubes for Boiler and Heat-Exchanger, General Service Tubing ASTM A249, A269, JIS G3463 DARI: 15.9~139.8mm TP304, TP304L, TP316L, SUS304TB
WT: 1.6~5.0mm
Mechanical and Structural Tubes ASTM A554, JIS G3446 DARI: 7.9~152.4mm MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD SUS304
WT: 0.5~6.5mm
Square Tubes ASTM A554 DARI: 12.7×12.7~150x150mm MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD
WT: 0.7~6.5mm
Rectangular Tubes ASTM A554 DARI: 10×20~100x200mm MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD
WT: 0.7~6.5mm
Sanitary Tubing ASTM A270 DARI: 25.4~165.2mm TP304, TP304L, TP316L, SUS304TBS
JIS G3447 WT: 0.8~3.05mm
Large Gauge Pipes for Ordinary Piping JIS G3448 DARI: 15.88~318.5mm SUS304TPD
WT: 0.8~3.0mm
Large Diameter Pipes JIS G3468 DARI: 14″~40 SUS304TPY
WT: SCH5S~SCH40S

 

Nominal Diameter NPS Diameter luar (mm) Nominal Wall Thickness (mm)
ASME B36.19M ASME B36.10M
SCH 5S SCH 10S SCH 40S SCH 80S SCH 5 SCH 10 SCH 20 PMS X
1/4 13.72 1.65 2.24 3.02 1.65 2.24 3.02
3/8 17.15 1.65 2.31 3.2 1.65 2.31 3.2
1/2 21.34 1.65 2.11 2.77 3.73 1.65 2.11 2.77 3.73
3/4 26.67 1.65 2.11 2.87 3.91 1.65 2.11 2.87 3.91
1 33.4 1.65 2.77 3.38 4.55 1.65 2.77 3.38 4.55
1 1/4 42.16 1.65 2.77 3.56 4.85 1.65 2.77 3.56 4.85
1 1/2 48.26 1.65 2.77 3.68 5.08 1.65 2.77 3.68 5.08
2 60.33 1.65 2.77 3.91 5.54 1.65 2.77 3.91 5.54
2 1/2 73.03 2.11 3.05 5.16 7.01 2.11 3.05 5.16 7.01
3 88.9 2.11 3.05 5.49 7.62 2.11 3.05 5.49 7.62
3 1/2 101.6 2.11 3.05 5.74 8.08 2.11 3.05 5.74 8.08
4 114.3 2.11 3.05 6.02 8.56 2.11 3.05 6.02 8.56
5 141.3 2.77 3.4 6.55 9.53 2.77 3.4 6.55 9.53
6 168.28 2.77 3.4 7.11 10.97 2.77 3.4 7.11 10.97
8 219.08 2.77 3.76 8.18 12.7 2.77 3.76 6.35 8.18 12.7
10 273.05 3.4 4.19 9.27 12.7 3.4 4.19 6.35 9.27 12.7
12 323.85 3.96 4.57 9.53 12.7 3.96 4.57 6.35 9.53 12.7
14 355.6 3.96 4.78 9.53 12.7 3.96 6.35 7.92 9.53 12.7
16 406.4 4.19 4.78 9.53 12.7 4.19 6.35 7.92 9.53 12.7
18 457.2 4.19 4.78 9.53 12.7 4.19 6.35 7.92 9.53 12.7
20 508 4.78 5.54 9.53 12.7 4.78 6.35 9.53 9.53 12.7
22 558.8 4.78 5.54 4.78 6.35 9.53 9.53 12.7
24 609.6 5.54 6.35 9.53 12.7 5.54 6.35 9.53 9.53 12.7
26 660.4 7.92 12.7 9.53 12.7
28 711.2 7.92 12.7 9.53 12.7
30 762 6.35 7.92 6.35 7.92 12.7 9.53 12.7
32
|
84
812.8
|
2133.60
Thinkness: 8.63-30mm

 

Lasan Pipa Baja Tahan Karat Test
Chemical Component Analysis, Peralatan mekanis (Ultimate tensile strength, Kekuatan hasil, Pemanjangan), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Uji hidrostatik, X-ray Test.
Mill Test Certificate: DI DALAM 10204 3.1 dan EN 10204 3.2
Third party inspection: SGS, BV, Lloyds etc.

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