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One of the most common stainless steel alloys, the 321 grade, is used to make stainless steel pipes and tubes, or SS 321. Because of its exceptional resistance to corrosion, stainless steel 321 can be used in both commercial and domestic settings for a wide range of purposes. With 8% nickel and 18% chromium, the alloy offers a nice mix of formability, strength, and oxidation resistance. Because of its resilience to abrasive conditions and preservation of structural integrity, stainless steel 321 pipes and tubes find widespread application in the food and beverage, pharmaceutical, and chemical processing sectors. These pipes and tubes are also easily produced into various shapes and sizes and have good weldability, which makes them a versatile option for a variety of engineering and construction tasks.
Pipe Specifications: ASTM A312, A358 / ASME SA312, SA358
Tube Specifications: ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Dimensions: ANSI B36.19, ANSI B36.10
Pipe Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Tube Outside Diameter: 1/8" OD TO 2"OD 3MM OD TO 38 MM OD
Thickness Range: 1MM TO 3 MM 0.028 TO 0.156 IN, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
Type: Seamless / ERW / Welded / Capillary Tubes
Form: Round Tube, Square Tube, Rectangular Tube
Length: Single Random, Double Random & Required Length
End: Plain End, Beveled End, Treaded
End Protection: Plastic Caps
Finish: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| SS 321 | S32100 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 321 | 321S31 | 08Х18Н10 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 321 | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-10.5 | 0.10 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 92 | 201 |
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Seamless TP 321 stainless steel pipes are well-known for their robustness, ability to withstand corrosion, and visual appeal. TP 321, a popular alloy in the 300 family, is made of premium stainless steel and is renowned for its outstanding resistance to oxidation and a wide variety of chemicals. Because these pipes can endure harsh environments and retain their structural integrity, they are frequently employed in sectors including chemical processing, food & beverage, and pharmaceuticals. Compared to welded pipes, their seamless design increases strength and dependability, which makes them perfect for high-pressure applications.
Many suppliers of SS 321 Pipes & Tubes, renowned for their excellent quality and dependable service, are based in India. The outstanding corrosion resistance, durability, and versatility of SS 321 Pipes & Tubes, which are widely regarded in a variety of industrial applications, are offered by these suppliers in a wide range. One of the most widely used grades of stainless steel is SS 321, which is prized for its exceptional qualities and is perfect for usage in petrochemical, food processing, pharmaceutical, and construction industries. Indian suppliers make sure their goods adhere to global norms and specifications, offering premium materials to both local and foreign customers.
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Stainless steel type SS 321 is renowned for its strength, resilience to corrosion, and adaptability. It is made up of 8% nickel and 18% chromium.
Owing to its exceptional strength and resistance to corrosion, SS 321 pipes and tubes find extensive application in a range of industries, such as construction, chemical processing, food and beverage, and pharmaceuticals.
High strength, longevity, outstanding formability and weldability, high corrosion resistance, and visual attractiveness are some of the advantages. They are also simple to maintain and clean.
The application requirements, which include pressure, flow rate, and the kind of fluid being delivered, determine the appropriate size. Finding the right measurements can be aided by speaking with a supplier or an engineer.
Compared to SS 316, which has 16% chromium, 10% nickel, and 2% molybdenum, SS 321 has 18% chromium and 8% nickel. Because molybdenum is added to SS 316, it has a higher resistance to pitting and crevice corrosion, which makes it more appropriate for use in harsh settings like marine ones.
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