Stainless Steel 321 Pipes and Tubes

Stainless Steel 321 Pipes and Tubes Exporter at Belgium, SS UNS S32100 Seamless Pipes and Tubes Suppling at Indonesia, Stainless Steel 321 Welded Tubes, SS 321 Seamless Pipe, Stainless Steel 321 Square Pipe Mnaufacturing at Tunisia, SS 321 Round Pipes & Tubes, SS 321 Seamless Tubing, 321 SS Coiled Tubing Supplier & Exporter in Mumbai India.

Alpha Overseas(AOS) manufactures and trades SS 321 Pipes and Tubes, where thoroughgoing steadying is proficient by hardening in the range of 1750 Deg F and 1850 Deg F. The carbon content in 321 Stainless Steel Tubes is further involved to Titanium content and as a result it leaves content of chromium unaided. Alloy 321 Seamless Tubes is as well beneficial for soaring heat service for the reason that of its excellent properties of mechanical. SS 321 Tubes is same as Stainless Steel 304 but by means of titanium accumulation of no less than 5 times the content of carbon. Stainless Steel 321 Welded Tubes is not allied to fuse deterioration (inter - granular deterioration) when bare to slightly harsh atmospheres. Yet more operative method in contradiction of carbide precipitation is the accumulation of Titanium content to 321 Stainless Steel Round Pipes is to steady it. Type 321 Welded Pipes shows excellent corrosion resistance at high heats has exceptional confrontation to inter - granular erosion and has outstanding weldability.

Stainless Steel 321 Welded Tubes
Stainless Steel 321 Welded Tubes
Stainless Steel 321 Seamless Pipes
Stainless Steel 321 Seamless Pipes

ASTM A312 / SA 312 SS 321 Pipes and Tubes Manufacturer at Philippines, Stainless Steel Pipe and Tube, SS 321 Polished Pipes, Stainless Steel 321 Fabricated Pipe, A358 SS 321 EFW Pipes Manufacturing at Morocco, 321 Stainless Steel Seamless / Welded Pipe, SS DIN 1.4541 Rectangular Welded Pipes Suppling at Germany, SS 321 ERW Pipes Exporter, SS 321 EFW Tubing Manufacturer & Stockist in Mumbai, India.

While Grade 321 Seamless Pipes endures to be working for protracted service in 800 Deg F to 1500 Deg F heat range, Grade 304L has displaced this steadied steel for its uses relating merely joining or short period of heating.

Alloy 321 Welded Pipes is the steel of high - quality for its uses in the heat range of equal to about 900 Deg C, merging elevated potency, confrontation to ascending and phase constancy by means of confrontation to succeeding aqueous erosion.


ASTM A312 / SA 312 SS 321 Pipe & Tubes Specification :

Seamless Pipe & Tube : 1/2" NB – 8" NB

ERW Pipe & Tube : 1/2" NB - 24" NB

EFW Pipe & Tube : 6" NB - 100" NB

Wall Thickness : Schedule 5S – Schedule XXS (heavier on request)

Standards : Seamless ASTM A269 / 312/ 213, Welded ASTM A269 / 312 / 358 / 249 / 409 / 778

Type : Seamless / ERW / Welded / Fabricated / CDW

Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

Length : Single Random, Double Random & Required Length

End : Plain End, Beveled End, Treaded

Material : Stainless Steel


NB Sizes (in stock) SCH 5 SCH 10 SCH 40 SCH 80 SCH 160
1 1/4"
1 1/2"
2 1/2"


SS 321 Pipes & Tubes Equivalent Grades

SS 321 1.4541 S32100


Stainless Steel 321 Pipes & Tubes Chemical Composition

Element Ni C Mn P S Si Cr
SS 321 9.00 – 12.00 0.08 2.00 0.045 0.030 1.00 17.0-19.0


SS Seamless / Welded Pipe & Tube Mechanical & Physical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 321 8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 40 %

Testings (Destructive, Non Destructive):
  • Positive Material Identification - PMI Testing
  • Chemical Analysis - Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation
  • Micro Test
  • Macro Test
  • Hardness Test
  • Pitting Resistance Test
  • Intergranular Corrosion (IGC) Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Radiography Test
  • Dye Penetrant Test (DP Test)
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test


  • We understand the importance of packaging specially in case of international shipments as the consignment has to go through a number of channels to reach the final destination, thus we take proper care of packing.
  • We pack our goods in a various ways depending on the products. The different ways in which our products are packed are:
    • Shrink-wrapped
    • Wooden Boxes
    • Wooden Pallets
    • Wooden Crates
    • Carton boxes


  • All our products will have complete marking details which are co-related to the test certificates we supply.
  • In case of orders for cut piece of Pipes, Sheets or Round Bars, the marking is transferred from the product from which it is cut. In such cases we provide Letter confirming the marking transfer and picture of the product from which it is cut.


Delivery Time:
  • If the items are available in stock, we take 2 days from the date of receipt of advance payment to clear the shipment and send it to port.
  • And in-case the items are not availabe in stock, the time taken for manufacturing depends on the size, quantity and grade.
  • However we can claim the fact that we can compete with anyone in India on Delivery time and most of the time our production time is the least.
  • We have tied up with strong logistic partners in India which can undertake any type of shipping activites and make sure that there is no delay in shipment.


  • We welcome stage wise inspection, final stage inspection from any of your representative or third party inspection agencies.
  • We regularly have inspections ongoing at our premises from internationally acclaimed Inspection Agencies such as TUV, Llyods, BVIS, SGS, DNV etc.


  • Furnaces (piping, doors, burners, fans and recuperators)
  • Components (Cryogenic)
  • Industries processing food
  • Bed Furnaces (Fluidized) suc as grids, wind boxes, piping, coal combustors
  • Stainless Steel 321 is used in smelter and steel melting equipment, continuous casting equipment in Steel Plants and Ore Processing Plants
  • Petroleum and Petrochemical refineries for catalytic recovery systems, flares, recuperators, tube hangers
  • Stainless Steel 321 is used in Power Generation for coal gasifier internals, pulverized coal burners, tube hangers
  • Sintering/Cement Plants – burner shields, burners, wind boxes feeding and discharging systems
  • Thermal Process Plants for annealing covers and boxes, burner grids, doors, fans, muffles and retorts, recuperators, walking beams

Other Types Of Pipes & Tubes
  • SS 321 ERW Pipes Stockist Stockholder
  • Stainless Steel 321 ERW Tubes Distributors
  • SS DIN 1.4541 Pipe & Tube Suppliers
  • UNS S32100 SS Seamless Tubing
  • 321 Fabricated Stainless Steel Pipe Suppliers at Israel
  • 321 Stainless Steel Cold Drawn Seamless Pipe
  • Distributors of SS 321 Pipes in Different Schedules and Sizes
  • 321 SS Seamless Pipes Exporter
  • 321 SS Tubing
  • Stainless Steel 321 Heat Ex-changer Tubes
  • SS 321 Rectangular Pipes Exporter
  • Stainless Steel 321 Tubes
  • Stainless Steel 321 Square Pipe & Tube Exporter
  • Stainless Steel 321 Seamless Pipes
  • Stainless Steel 321 Welded Tubes Stockiest.
  • Stainless Steel 321 Pipes & Tubes
  • Stainless UNS S32100 Welded Tubes
  • Stainless Steel 321 Round Pipes Exporter
  • ASTM A213 Stainless Steel 321 Pipes & Tubes
  • ASTM A312 Stainless Steel 321 Round Pipe Suppliers at Netherland
  • SS 321 ERW Pipes & Tubes Stockist
  • SS 321 Pipes & Tubes Manufacturer
  • 321 SS Pipe & Tube Dealers
  • Stainless Steel DIN 1.4541 Pipes & Tubes
  • Stainless UNS S31703 Pipes
  • SS 321 Rectangular Tubes

Approved manufacturer of
Sabic approved Stainless Steel 321 Pipes and Tubes
KNPC approved SS 321 Seamless Pipes and Tubes
Williamson approved SS 321 ERW Pipes & Tubes
MARAFIQ approved Stainless Steel 321 Welded Tubes
Magnetrol approved 321 Fabricated Stainless Steel Pipe
QATARGAS approved 321 Stainless Steel Cold Drawn Seamless Pipe
ONGC approved Stainless Steel 321 Tubes
FW approved Stainless Steel 321 Square Pipe & Tube
IBR approved SS 321 Rectangular Tubes
Alba approved Stainless Steel 321 Heat Ex-changer Tubes
Kuwait Oil Company approved 321 Fabricated Stainless Steel Pipe
Egyptian General Petroleum Corporation approved Stainless Steel 321 ERW Tubes
Industry We Serve
Stainless Steel 321 Seamless Pipes in Petrochemical Industry
Stainless Steel 321 Welded Tubes in Oil & Gas Industry
ASTM A213 Stainless Steel 321 Pipes & Tubes in Power Plant
ASTM A312 Stainless Steel 321 Round Pipe in Pharmaceuticals Industry
321 SS Pipe & Tube in Chemicals Industry at Sri Lanka
SS 321 Rectangular Tubes in Defence Industry
321 Stainless Steel Cold Drawn Seamless Pipe in Food and Beverages Industry
SS 321 Pipes in Sugar Industry
Stainless Steel 321 ERW Tubes in Paper Industry
321 stainless Pipe in Cement Industry at Poland
321 ERW Stainless Steel Pipe Dairy Industry
CDW Stainless Steel 321 Pipe in Mining Industry

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We Supply Our Stainless Steel 321 Pipes & Tubes in Countries like


We are Exports in Exporting SS 321 Pipes and Tubes worldwide

We are Exporter of Stainless Steel 321 Pipes and Tubes in Worldwide Such as Taiwan, Bahrain, Afghanistan, Portugal, Libya, Serbia, Gambia, Venezuela, Morocco, Costa Rica, Ghana, Kenya, China, Finland, Hong Kong, Malaysia, Chile, Vietnam, South Korea, Thailand, Nigeria, Oman, New Zealand, Zimbabwe, Italy, Belarus, Chile, Russia, Qatar, Jordan, Sri Lanka, Poland, Algeria, India, Sweden, Kuwait, Azerbaijan, United States, Bolivia, Brazil, United Kingdom, Germany, Hungary, Bangladesh, Gabon, Austria, Switzerland, Czech Republic, Netherlands, Spain, Lebanon, Belgium, Egypt, Iran, Singapore, Slovakia, Peru, Norway, Macau, Bulgaria, Trinidad & Tobago,Tunisia, Estonia, Ecuador, Greece, Ukraine, United Arab Emirates, Poland, Argentina, Nepal, Israel, Denmark, Lithuania, Indonesia, South Africa, Angola, Mongolia, Japan, Namibia, Iran, Colombia, Romania, Canada, Turkey, Saudi Arabia, Philippines, Mexico, Yemen, Puerto Rico, Bhutan, Australia, France, Pakistan, Kazakhstan, Tibet, Ireland, Nigeria, Iraq, Mexico, Croatia.

We have supplied of SS 321 Pipes & Tubes to following places

We are Suppliers of Stainless Steel 321 Pipes and Tubes in India Such as Mumbai, Ranchi, Rajkot, Navi Mumbai, Bangkok, Thiruvananthapuram, La Victoria, Hanoi, Courbevoie, Busan, Jaipur, Pimpri-Chinchwad, Sharjah, Vung Tau, Brisbane, Perth, Haryana, Dallas, Karachi, Al Khobar, Cairo, Indore, Geoje-si, Kolkata, Al Jubail, Tehran, Ahvaz, Lagos, Ahmedabad, Istanbul, Caracas, Vadodara, Faridabad, Ernakulam, Granada, Kuala Lumpur, Rio de Janeiro, Riyadh, London, Petaling Jaya, Bhopal, Kuwait City, Milan, Bengaluru, Lahore, Doha, New York, Bogota, Edmonton, Chiyoda, Surat, Gurgaon, Ho Chi Minh City, Noida, Sydney, Los Angeles, Moscow, Chennai, Ankara, Colombo, Hyderabad, Pune, Ulsan, Howrah, Nagpur, Nashik, Port-of-Spain, Singapore, Mexico City, Jakarta, Jeddah, Secunderabad, Visakhapatnam, Thane, Melbourne, Calgary, Seoul, Montreal, Dammam, Coimbatore, Manama, Dubai, Atyrau, Chandigarh, Toronto, Madrid, Kanpur, New Delhi, Gimhae-si, Abu Dhabi, Muscat, Hong Kong, Algiers, Aberdeen, Jamshedpur, Baroda, Ludhiana, Santiago, Houston.