What industries or applications commonly use stainless steel 321 / 321H welded pipe?

Stainless Steel 321/321h Welded Pipes find extensive use across various industries and applications due to their exceptional properties and characteristics. One prominent industry that utilizes these pipes is the petrochemical industry, employed in constructing refinery equipment, such as distillation columns, heat exchangers, and storage tanks. The aerospace industry also benefits from these pipes, using them for aircraft exhaust systems, engine components, and fuel lines, thanks to their high-temperature resistance and corrosion resistance in harsh environments.

Additionally, the pharmaceutical industry relies on Stainless Steel 321/321h Welded Pipes for their hygienic and inert qualities, making them ideal for transporting pharmaceutical products, chemicals, and sterile fluids. Other sectors such as food processing, oil and gas, power generation, and chemical processing also commonly utilize these welded pipes in various applications where high temperature and corrosive resistance are paramount.

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How does the welding process affect the performance and durability of stainless steel 321 / 321H welded pipe?
The welding process is critical in determining the performance and durability of Stainless Steel 321 Welded Pipes. During welding, the heating and cooling cycles can induce changes in the material's microstructure, potentially leading to undesirable phases and precipitates. These changes can affect the mechanical properties, such as tensile strength and impact resistance, as well as the corrosion resistance of the welded pipe. Therefore, it is crucial to employ proper welding techniques, such as controlled heat input, suitable filler material, and post-weld heat treatment, to minimize the risk of detrimental effects.

The welding process significantly influences the performance and durability of Stainless Steel 321h Welded Pipes. During welding, the elevated temperatures can cause changes in the microstructure, leading to carbides and other phases that can impact the pipe's mechanical and corrosion-resistant properties. If the welding process is not carefully controlled, it may result in reduced toughness, increased susceptibility to intergranular corrosion, and decreased resistance to high-temperature environments. To ensure optimal performance and durability, it is essential to employ precise welding techniques, such as proper heat input, appropriate filler materials, and post-weld heat treatments, which help minimize the formation of detrimental phases and maintain the desired properties of the stainless steel 321H welded pipe.

Specification Of 321 Stainless Steel Welded Pipe

Welded Pipe Standard ASTM A312 ASME SA312 / ASTM A358 ASME SA358
Welded Pipe Dimension ANSI/ASME B36.19M, ANSI/ASME B36.10M
Welded Pipe Sizes 1 / 2" NB - 24" NB
Welded 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
Steel Welded Pipe Manufacturing Process Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Stainless Steel Welded Pipe Shapes Round, Rectangle, Square etc.
Stainless Steel Welded Pipe Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Welded 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

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Types Of Stainless Steel 321 Welded Pipes

Stainless Steel 321 Welded Round Pipe

321 Stainless Steel Welded Round Pipe

SS 321H Welded Round Pipe, Stainless Steel 321 Welded Round Pipe Supplier, Stainless Steel 321 Welded Round Pipe Stockist.

Stainless Steel 321 Welded Square Pipe

321 Stainless Steel Welded Square Pipe

SS 321 Welded Square Pipe, Stainless Steel 321 Welded Square Pipe Supplier, Stainless Steel 321H Welded Square Pipe Stockist.

Stainless Steel 321 Welded Rectangular Pipe

321 Stainless Steel Welded Rectangular Pipe

SS 321 Welded Rectangular Pipe, Stainless Steel 321H Welded Rectangle Pipe Supplier, Stainless Steel 321 Welded Rectangular Pipe Stockist.

Stainless Steel 321 Welded Polished Pipe

321 Stainless Steel Welded Polished Pipe

SS 321 Welded Polished Pipe, Stainless Steel 321H Welded Polished Pipe Supplier, Stainless Steel 321 Welded Polished Pipe Stockist.

Widest Range of 321-321H Stainless Steel Welded Pipes in Mumbai, India.

  • Widest RangeSchedule 80 Stainless Steel 321 Welded Pipe
  • Widest RangeStainless Steel 321 Continuous Welded Pipe
  • Widest Range321 SS Electric Fusion Welding Pipe
  • Widest RangeSchedule 5 Stainless Steel 321 Welded Pipe
  • Widest RangeSchedule 160 Stainless Steel 321 Welded Pipe
  • Widest RangeSchedule 40 Stainless Steel 321 Welded Pipe
  • Widest RangeSchedule XS Stainless Steel 321 Welded Pipe
  • Widest Range321 Stainless Steel Laser Welded Pipe
  • Widest RangeSchedule XXS Stainless Steel 321 Welded Pipe
  • Widest RangeSchedule 10 Stainless Steel 321 Welded Pipe
  • Widest RangeASTM A312 Stainless Steel 321 Welded Pipe
  • Widest RangeStainless Steel 321H Round Welded Pipe
  • Widest RangeASTM A312 Stainless Steel 321H Welded Pipe
  • Widest RangeASME SA312 Stainless Steel 321H Welded Pipe
  • Widest RangeStainless Steel 321 Spiral Welded Pipe
  • Widest RangeASME SA312 Stainless Steel 321 Welded Pipe
  • Widest Range321 Stainless Steel ERW Pipe
  • Widest Range321 Stainless Steel EFW Pipe
  • Widest RangeSS 321 Longitudinal Submerged Arc Welding (LSAW) Pipe
  • Widest Range321 Stainless Steel Electrical Resistance Welding Pipe

Check Stainless Steel Pipes Types In Detail

321 Stainless Steel Welded Pipes Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10
SS 321H 1.4878 S32109 SUS 321H X12CrNiTi18-9

321 Stainless Steel Welded Pipe Sizes, 321H Stainless Steel Welded Pipe Dimensions, Jindal 321 Stainless Steel Welded Pipe, Stainless Steel 321 Welded Pipe Exporter In India

321 Stainless Steel Welded Pipes Price

Product Price
S32100 Stainless Steel Welded Pipe Price US $ 959 - 3500 / Ton
ASTM A312 SCH 5S Plain End Stainless Steel 321 Welded Pipe Price List $575.00 - $1,640.00/ Ton
321 SS Welded Pipe Price List $730 - 1470/ Ton
Austenitic Stainless Steel 321 Welded Pipe Price Per KG $1520.00 - $2450.00/ Ton
SS 1.4706 Square Welded Pipe Price List US $ 25 - 38 / kg
Custom Size 4 Inch SS 1.4301 Welded Pipes Price US $ 1570 - 13500 / Ton
Schedule 10 Stainless Steel 321H Welded Pipes Price $1,090.00 - $2,900.00/ Ton
Stainless Steel S32109 Welded Pipe Price US $ 1750 - 2970 / Ton
20mm Diameter Polished Stainless Steel 321H Welded Pipes Price $650.00 - $1,580.00/ Ton

For Quatation & Questions Related To Stainless Steel 321 Welded Pipes

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Stainless Steel 321 Welded Pipe Manufacturing Process

Electric Resistance Welding (ERW) Process

Pipe is created using the Electric Resistance Welding (ERW) process by cold-forming a flat steel sheet into a cylindrical shape. The steel is then heated to a degree at which the edges of the steel cylinder are pressed together to establish a bond without the use of welding filler material.
Several Electric Resistance Welding (ERW) processes are available for pipe production. The two main types of ERW are:
. High Frequency Welding
. Rotary Contact Wheel Welding.

High Frequency Welding

In high frequency induction welding, a work coil is placed in front of the weld spot and acts as a conduit for the weld current to reach the material. Work coil does not come into contact with pipe. Through the magnetic fields that surround the pipe, an electrical current is induced into the pipe's substance. When changing pipe size, high frequency induction welding avoids contact marks and requires less setup time.

Rotary Contact Wheel Welding

The electrical current is passed through a contact wheel at the weld spot in rotary contact wheel welding. A portion of the forge pressure required for the welding process is also applied by the contact wheel. AC, DC, and square wave are the three primary types of rotary contact wheel welders. Electrical current is transferred in all three power supplies by brush assemblies that interact with slip rings attached to a revolving shaft that holds the contact wheels. The current is sent to the strip edges through these contact wheels.

Submerged Arc Welding (SAW) Process

A constantly fed bare wire electrode and the workpiece form an arc during the submerged arc welding (SAW) process. To produce protective gases, slag, and to add alloying components to the weld pool, the procedure requires a flux. Using a shielding gas is not necessary. Excess flux is recycled via a hopper as the arc advances along the joint line. After welding, any remaining layers of fused slag are simple to remove. The arc is generally invisible during welding because the flux layer totally covers it, and heat loss is also very minimal. In contrast to the manual metal arc's 25% thermal efficiency, this one can reach 60%.
There are two types of Submerged Arc Welding (SAW) processes:
. Longitudinal Submerged Arc Welding (LSAW) Process
. Spiral Submerged Arc Welding (SSAW) Process

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Chemical Composition Of Stainless Steel 321H Welded Pipe

Grade C Mn Si P S Cr N Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max
SS 321H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 – 12.00 4(C+N) – 0.70 max

Mechanical Properties Of 321 Stainless Steel Welded Piping

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Testing & Inspection of 321 Stainless Steel Welded Pipes

Testing (Destructive, Non Destructive)

Intergranular Corrosion (IGC) Test Impact 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
Positive Material Identification – PMI Testing Hydrostatic Test
Pitting Resistance Test Eddy Current Testing
Hardness Test Ultra Sonic Test (UT)
Flaring Test Bend Test
Micro Test Radiography Test
Macro Test Dye Penetrant Test (DP Test)
Flattening Test

Stainless Steel 321H Welded Pipe Sizes in MM

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 15.88 316.88 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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Supply Cities Of Stainless Steel 321 And 321H Welded Pipes

The cities listed here are where we have supplied our grade 321H stainless steel welded pipes in bulk or small orders. Cities from metropolitan to rural areas we can provide SS 321 welded pipes to satisfy the needs of our clients.

Sharja, Lagos, Milan, Bengaluru, Abu Dhabi, Brisbane, Ankara, Kolkata, Al Khobar, Montreal, Thane, Ulsan, Caracas, Hyderabad, London, Bangkok, Colombo, Nagpur, Vung Tau, Noida, Coimbatore, Madrid, Jaipur, Singapore, Toronto, Indore, Mumbai, Karachi, Chiyoda, New York, Secunderabad, Los Angeles, Rio de Janeiro, Bhopal, Jeddah, Ranchi, Port-of-Spain, Jamshedpur, Haryana, Melbourne, Surat, Riyadh, Hanoi, Atyrau, Sydney, Houston, Thiruvananthapuram, Nashik, Ahmedabad, Busan, Jakarta, La Victoria, Tehran, Baroda, Gurgaon, Istanbul, Courbevoie, Edmonton, Visakhapatnam, Mexico City, Kuwait City, Ludhiana, Ernakulam, Perth, Muscat, Mumbai, Doha, Geoje-si, Ho Chi Minh City, Dallas, Manama, Vadodara, Gimhae-si, Howrah, Chennai, Navi Mumbai, Pimpri-Chinchwad, Aberdeen, Algiers, Dammam, Cairo, Kuala Lumpur, Bogota, Santiago, Al Jubail, Moscow, Calgary, Rajkot, Faridabad, Ahvaz, Pune, Seoul, New Delhi, Petaling Jaya, Kanpur, Chandigarh, Lahore, Granada, Hong Kong, Dubai.

Documents Provided at the time of Domestic Sales or Export of 321 Stainless Steel Welded Pipes

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

Application Industries We Supply Stainless Steel 321 Welded Pipes

UNS S32100 Welded Pipes For Mining, Stainless Steel 1.4306 Welded Pipes For Textile Industry, 321H Stainless Steel Welded Pipes For Pharmaceutical Industry, 321 Stainless Steel Welded Pipes For Transport, 321 Stainless Steel Welded Pipes For Electronics, 321 SS Welded Pipes For Health care, 321 Stainless Steel Welded Pipes For Pulp and Paper Industry, 321H Stainless Steel Welded Pipes For Rail Transport, 321H Stainless Steel Welded Pipes For Tertiary Sector, UNS S32109 Welded Pipes For Engineering, Stainless Steel 1.4301 Welded Pipes For Construction, 321 Stainless Steel Welded Pipes For Chemical Industry, 321 Stainless Steel Welded Pipes For Energy, 321 Stainless Steel Welded Pipes For Factory, 321 Stainless Steel Welded Pipes For Manufacturing, 321H Stainless Steel Welded Pipes For Production, Stainless Steel 321 Welded Pipes For Technology, 321 Stainless Steel Welded Pipes For Agriculture, Stainless Steel 321H Welded Pipes For Real Estate, Stainless Steel 1.4307 Welded Pipes For Waste, 321 Stainless Steel Welded Pipes For Food Industry.

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