321 Stainless Steel Seamless Round Pipe
SS 321 Seamless Round Pipe, Stainless Steel 321 Seamless Round Pipe Supplier, Stainless Steel 321 Seamless Round Pipe Stockist.
What are the main applications of stainless steel 321 / 321H seamless pipes?
Stainless Steel 321 / 321H Seamless Pipes find a wide range of applications across various industries due to their exceptional qualities. These pipes are commonly used in high-temperature environments where resistance to corrosion and oxidation is critical. One of the primary applications of stainless steel 321 / 321H seamless pipes is in the petrochemical industry, particularly in the construction of refineries and chemical processing plants. They are utilized for transporting corrosive fluids and gases and handling high-pressure and high-temperature conditions. Additionally, these pipes are extensively employed in the aerospace and aviation sectors for manufacturing exhaust systems and components that require resistance to elevated temperatures and thermal cycling.
Table Of Content
What are the key characteristics and properties of stainless steel 321 / 321H seamless pipes?
Stainless Steel 321 Seamless Pipes possess key characteristics and properties that make them highly desirable in various applications. Firstly, they exhibit excellent corrosion resistance, particularly against intergranular corrosion and pitting, making them suitable for environments with chloride-containing solutions. Additionally, Stainless Steel 321 Seamless Pipes offer superior resistance to oxidation at high temperatures, ensuring their durability in high heat conditions. Another unique property is their exceptional creep strength, which allows them to maintain their structural integrity even when exposed to prolonged periods of stress at elevated temperatures.
Stainless Steel 321H Seamless Pipes possess several key characteristics and properties that make them highly suitable for various demanding applications. One of their primary attributes is exceptional resistance to high-temperature environments, making them well-suited for applications where exposure to elevated temperatures is common. These pipes offer improved high-temperature strength compared to standard 321 stainless steel, allowing them to withstand thermal stress and cyclic heating. Moreover, stainless steel 321H seamless pipes exhibit excellent resistance to intergranular corrosion, making them suitable for applications involving exposure to corrosive environments and chemicals. They also demonstrate good weldability, enabling easy fabrication and installation processes.
Pipe Standard | ASTM A312 ASME SA312 |
Seamless Pipe Dimension | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
Seamless Pipe Sizes | 1 / 2" NB - 24" NB |
Seamless 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 |
Seamless Steel Pipe Manufacturing Process | Seamless |
Stainless Steel Seamless Pipe Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
Stainless Steel Seamless Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Seamless Pipe Ends | Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
SS 321 Seamless Round Pipe, Stainless Steel 321 Seamless Round Pipe Supplier, Stainless Steel 321 Seamless Round Pipe Stockist.
SS 321 Seamless Square Pipe, Stainless Steel 321 Seamless Square Pipe Supplier, Stainless Steel 321 Seamless Square Pipe Stockist.
SS 321 Seamless Rectangular Pipe, Stainless Steel 321 Seamless Rectangle Pipe Supplier, Stainless Steel 321 Seamless Rectangular Pipe Stockist.
SS 321 Polished Seamless Pipe, Stainless Steel 321 Seamless Polished Pipe Supplier, Stainless Steel 321 Seamless Polished Pipe Stockist.
STANDARD | WERKSTOFF NR. | UNS |
SS 321 | 1.4541 | S32100 |
SS 321H | 1.4878 | S32109 |
Product | Price |
Custom Size 4 Inch SS 1.4541 Seamless Pipes Price | US $ 1334 - 14043 / Ton |
SS 1.4541 Square Seamless Pipe Price List | US $ 32 - 35 / kg |
ASTM A312 SCH 5S Plain End Stainless Steel 321 Seamless Pipe Price List | $542.00 - $1,530.00/ Ton |
S32100 Stainless Steel Seamless Pipe Price | US $ 2140 - 4031 / Ton |
Schedule 10 Stainless Steel 321H Seamless Pipes Price | $1,8731.00 - $2,833.00/ Ton |
Austenitic Stainless Steel 321 Seamless Pipe Price Per KG | $1145.00 - $3240.00/ Ton |
321 SS Seamless Pipe Price List | $541 - 1444/ Ton |
Stainless Steel S32109 Seamless Pipe Price | US $ 1311 - 3041 / Ton |
20mm Diameter Polished Stainless Steel 321H Seamless Pipes Price | $854.10 - $1,340.00/ Ton |
Avoid those problems that occur with low-quality stainless steel 321 seamless pipes by getting high-quality stainless steel 321 seamless pipes at competitive prices from us. Give us a call or send us an email to discuss how we can help you build your business. Working with such an esteemed client as you will make us happy.
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Rolling and welding
Firstly, the stainless steel strips are made to gone through various quality checks and are trimmed at edges. They are then fed to the tubes mill by stainless steel pipe manufacturers in India. The strips pass through the number of rollers as per the required size. In the tubes-mill, the strip is gradually converted into the tubular shape. The fitted welding machine is then used to weld trim edges of the strip using TIG welding process. The scraps and inside weld bead are removed instantaneously by the Tibo machine. In this way, rolled pipes and tubes are formed.
The cleaning and heating phase
The rolled stainless steel seamless pipes thus manufactured are cut to the required lengths depending upon the industrial demand. These stainless pipes and tubes are then subjected to cleaning to remove the dirt. Further, a heat treatment is given to these rolled pipes and tubes to remove the stresses that may occur due to welding and formation processes. Heat treatment is given on the continuously rolling hearth furnace. The furnace is fitted with temperature recorders and controllers. After the heat treatment process, the SS tubes and pipes are straightened and subjected to pickling for removing scales from the surface.
Cold- drawing process
In some cases, the required size may not be obtained from the mill directly. Then, the cold operation process can be used to obtain the desired size. In cold drawing process, the tubes or pipes are coated with oxalic and soap solution. This solution acts as a lubricant to reduce friction while cold drawing operation. In the cold drawing process, the tube or pipe is drawn over the bench using Die plugs.
Finishing process
The drawn-out tube or ss pipe is then subjected to cleaning, heat treatment, pickling and straightening. The computerized ink jet marking machine is used to do the marking on the finished pipes or tubes. The pipe or tube is marked with grade of material, size, heat number and the stamp of third party inspection before passing on to stainless steel pipe exporters. The stainless tubes or pipes thus produced will undergo certain testing and quality checks. This process is followed by proper packing and dispatch. There are numerous numbers of stainless steel pipe applications, these pipes and tubes are used thereafter for.
Grade | Ni | C | Mn | P | S | Si | Cr | Mo | N | TI | |
321 | Max | 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.0 | 3 – 4 | 0.10 max | 0.70 |
Min | 9.00 | - | - | - | - | - | 17.0 | - | - | 5(C+N) | |
321H | Max | 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.75 | 19.0 | 3 – 4 | 0.10 | 0.70 |
Min | 9.00 | 0.04 | - | - | - | - | 17.0 | - | - | 4(C+N) |
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% | 95 | 217 |
321H | 515 | 205 | 40% | 95 | 217 |
Positive Material Identification – PMI Testing | Hydrostatic Test |
Chemical Analysis – Spectro Analysis | Hydrogen-Induced Cracking (HIC) Test |
Mechanical Testing Such as Tensile, Elongation, Reduction of Area | Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177 |
Micro Test | Radiography Test |
Macro Test | Dye Penetrant Test (DP Test) |
Hardness Test | Ultra Sonic Test (UT) |
Pitting Resistance Test | Eddy Current Testing |
Intergranular Corrosion (IGC) Test | Impact Test |
Flaring Test | Bend Test |
Flattening Test |
Designation of Diameter | O/D | Nominal Wall Thickness | ||||||||||||||||||
DIA | SCH.5S | SCH.5 | SCH 10S | SCH.10 | SCH.20S | SCH.30 | SCH.40S | SCH.40 | SCH 60 | |||||||||||
(A) | (B) | Meter MM | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr | Wall Thk | Weight Kg/Mtr |
6 | 1/8 | 10.3 | 1 | 0.23 | 1.2 | 0.27 | 1.5 | 0.33 | 1.73 | 0.37 | ||||||||||
8 | 1/4 | 13.7 | 1.2 | 0.37 | 1.65 | 0.49 | 2 | 0.58 | 2.24 | 0.64 | ||||||||||
10 | 3/8 | 17.2 | 1.2 | 0.47 | 1.65 | 0.63 | 2 | 0.74 | 2.31 | 0.87 | ||||||||||
15 | 1/2 | 21.3 | 1.65 | 0.01 | 1.65 | 0.81 | 2.11 | 1.02 | 2.11 | 1.02 | 2.5 | 1.15 | 2.77 | 1.29 | ||||||
20 | 3/4 | 26.7 | 1.65 | 1.03 | 1.65 | 1.03 | 2.11 | 1.3 | 2.11 | 1.3 | 2.5 | 1.49 | 2.87 | 1.71 | ||||||
25 | 1 | 33.4 | 1.65 | 1.31 | 1.65 | 1.31 | 2.77 | 2.13 | 2.77 | 2.13 | 3 | 2.24 | 3.38 | 2.54 | ||||||
32 | 11/4 | 24.2 | 1.65 | 1.67 | 1.65 | 1.67 | 2.77 | 2.73 | 2.77 | 2.73 | 3 | 2.9 | 3.56 | 3.44 | ||||||
40 | 11/2 | 48.3 | 1.65 | 1.93 | 1.65 | 1.93 | 2.77 | 3.16 | 2.77 | 3.16 | 3 | 3.35 | 3.68 | 4.11 | ||||||
50 | 2 | 60.3 | 1.65 | 1.93 | 1.65 | 2.42 | 2.77 | 3.99 | 2.77 | 3.99 | 3.5 | 4.9 | 3.91 | 5.52 | ||||||
65 | 21/2 | 73 | 2.11 | 3.75 | 2.11 | 3.75 | 3.05 | 5.34 | 3.05 | 5.34 | 3.5 | 6 | 5.16 | 8.77 | ||||||
80 | 3 | 88.9 | 2.11 | 4.59 | 2.11 | 4.59 | 3.05 | 6.56 | 3.05 | 6.56 | 4 | 8.37 | 5.49 | 11.47 | ||||||
90 | 31/2 | 101.6 | 2.11 | 5.25 | 2.11 | 5.25 | 3.05 | 7.53 | 3.05 | 7.53 | 4 | 9.62 | 5.74 | 13.78 | ||||||
100 | 4 | 114.3 | 2.11 | 5.93 | 2.11 | 5.93 | 3.05 | 8.5 | 3.05 | 8.5 | 4.5 | 12.18 | 6.02 | 6.32 | ||||||
125 | 5 | 141.3 | 2.77 | 9.61 | 2.77 | 9.61 | 3.4 | 11.74 | 3.43 | 11.74 | 5 | 16.8 | 6.55 | 2210 | ||||||
150 | 6 | 168.3 | 2.77 | 11.47 | 2.77 | 11.47 | 3.4 | 14.04 | 3.43 | 14.04 | 5.5 | 22.08 | 7.11 | 28.69 | ||||||
200 | 8 | 219.1 | 2.77 | 15 | 2.77 | 15 | 3.76 | 20.77 | 3.76 | 20.27 | 6.35 | 33.82 | 7.04 | 37.38 | 8.18 | 43.2 | 10.81 | 53.9 | ||
250 | 10 | 273.1 | 3.4 | 22.95 | 3.4 | 22.95 | 4.19 | 28.2 | 4.19 | 28.2 | 6.35 | 42.41 | 7.8 | 51.81 | 9.27 | 61.22 | 12.2 | 82.8 | ||
300 | 12 | 323.9 | 3.96 | 31.72 | 4.19 | 33.6 | 4.57 | 36.54 | 4.57 | 36.54 | 6.35 | 50.48 | 8.38 | 66.2 | 9.53 | 75.01 | 10.31 | 80.94 | 14.27 | 110.62 |
350 | 14 | 355.6 | 3.96 | 34.86 | 4.78 | 41.99 | 6.35 | 55.53 | 7.92 | 68.95 | 9.53 | 82.58 | 9.53 | 82.58 | 11.13 | 96 | 15.06 | 128.42 | ||
400 | 16 | 406.4 | 4.19 | 42.2 | 4.78 | 48.07 | 6.35 | 63.61 | 7.92 | 79.03 | 9.53 | 94.7 | 9.53 | 94.7 | 12.7 | 125.2 | 16.66 | 162.59 | ||
450 | 18 | 457.2 | 4.19 | 47.46 | 4.78 | 54.15 | 6.35 | 71.69 | 7.92 | 89.1 | 11.13 | 124.32 | 9.53 | 106.83 | 14.27 | 158.27 | 19.05 | 209 | ||
500 | 2C | 508 | 4.78 | 60.23 | 5.54 | 69.7 | 6.35 | 79.76 | 9.53 | 118.93 | 12.7 | 157.51 | 9.53 | 118.9 | 15.06 | 185.89 | 2062 | 251.65 | ||
550 | 22 | 558.8 | 4.78 | 65.95 | 5.54 | 76.75 | 6.35 | 87.84 | 9.53 | 131.07 | 12.7 | 173.66 | 9.53 | 131.07 | 15.88 | 216.04 | 22.23 | 298.55 | ||
600 | 24 | 609.6 | 5.54 | 83.8 | 6.35 | 95.92 | 6.35 | 95.92 | 9.53 | 143.2 | 14.27 | 212.72 | 9.53 | 143.2 | 17.45 | 258.74 | 24.59 | 360.21 | ||
650 | 26 | 660.4 | 7.92 | 129.4 | 12.7 | 205.97 | 9.53 | 155.32 | ||||||||||||
700 | 28 | 711.2 | 7.92 | 139.47 | 12.7 | 222.13 | 15.88 | 276.48 | 9.53 | 167.44 | ||||||||||
750 | 3C | 762 | 6.35 | 120.15 | 7.92 | 149.55 | 7.92 | 149.55 | 12.7 | 238.28 | 15.88 | 296.68 | 9.53 | 179.56 | ||||||
800 | 32 | 812.8 | 7.92 | 159.62 | 12.7 | 254.44 | 15.88 | 321.88 | 9.53 | 191.69 | 17.48 | 348.11 | ||||||||
850 | 34 | 863.6 | 7.92 | 169.64 | 12.7 | 270.5 | 15.88 | 336.96 | 9.53 | 203.74 | 17.48 | 370.22 | ||||||||
900 | 36 | 914.4 | 7.92 | 179.77 | 12.7 | 286.75 | 15.88 | 357.28 | 9.53 | 215.93 | 19.05 | 427.09 |
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We have exported and supplied our 321 Stainless Steel Seamless Pipes to solve piping related problems of our prestigious domestic and worldwide clients. We appreciate your business and the confidence you have placed in us.
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The cities listed here are where we have supplied our grade 321H stainless steel seamless pipes in bulk or small orders. Cities from metropolitan to rural areas we can provide SS 321 seamless pipes to satisfy the needs of our clients.
Navi Mumbai, Milan, Melbourne, Ahmedabad, Atyrau, Santiago, Riyadh, Kanpur, Bhopal, Ankara, Vadodara, Mexico City, Tehran, Kuwait City, New Delhi, Busan, Ludhiana, Ho Chi Minh City, Coimbatore, Hyderabad, Caracas, Rajkot, Courbevoie, Hanoi, Jamshedpur, Montreal, Seoul, Geoje-si, Thane, Bogota, Faridabad, Karachi, Ulsan, Sharjah, Cairo, Bengaluru, Jakarta, Kolkata, Chennai, Singapore, Edmonton, Dallas, Haryana, Perth, Abu Dhabi, Mumbai, Vung Tau, Pune, Moscow, Doha, Port-of-Spain, Rio de Janeiro, Lahore, Thiruvananthapuram, Ranchi, New York, Sydney, Dubai, Surat, Gimhae-si, Lagos, Muscat, Chandigarh, Al Khobar, Ernakulam, Ahvaz, Calgary, Howrah, Secunderabad, Kuala Lumpur, Nashik, Hong Kong, Brisbane, Chiyoda, Pimpri-Chinchwad, Al Jubail, Nagpur, Granada, Madrid, Dammam, Gurgaon, Jeddah, Algiers, Colombo, Los Angeles, Istanbul, Aberdeen, Houston, Visakhapatnam, Mumbai, London, Jaipur, Petaling Jaya, Bangkok, Baroda, Indore, Toronto, Manama, Noida, La Victoria.
Certificate of Origin | Raw Material Test Reports |
Commercial Invoice | Heat Treatment Charts |
Packing List | Quality Assurance Plan (QAP) |
Fumigation Certificates | NABL approved Laboratory Test Reports |
Letter of Guarantee | Material Test Certificates |
ROHS Certificate | Certificate of Compliance/Conformity |
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