Stainless Steel 321 Spool Fittings

Stainless Steel 321 Spool Fittings Suppling at Jordan, SS UNS S32100 Spool Fitting Manufacturing at France, Stainless Steel 321 Spool Fittings, SS 321 Spool Fitting Suppling at Poland, Stainless Steel 321 Pipe Spools Supplier & Exporter in Mumbai India.

Alpha Overseas(AOS) manufactures and trades SS 321 Spool Fittings, which is titanium stabilized austenitic stainless steel plate with good general corrosion resistance. Like other austenitic grades, these Alloy 321 Spool Fittings have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. This results in higher elevated temperature allowable stresses for this stabilized Grade 321 Spool Fittings for ASME Boiler and pressure Vessel Code applications. Post-weld annealing is not required in this Type 321 Spool Fittings, but temperature factors could be another factor to consider in some applications. Typical applications of our AISI 321 Spool Fittings include: Aircraft Exhaust Manifolds and Stacks, Chemical Processing Equipment, Jet Engine Parts, Welded Equipment, etc. These SS 321 Spool Fittings also includes Food Processing, Dairy Equipment, Chemical, Petrochemical, Transport and associated industries etc. Our 321 Stainless Steel Spool Fittings is as well used in radiant superheaters, oil refinery and bellows equipment.

Stainless Steel 304/304L Perforated Sheet
Stainless Steel 304/304L Perforated Sheet
SS 304/304L Chequered Plate
SS 304/304L Chequered Plate

Stainless Steel 321 Spool Fittings Suppling at Indonesia, SS DIN 1.4541 Spool Fitting Manufacturing at Tunisia, ASTM B336 SS Spool Fittings Manufacturer, Stainless Steel 321 Prefabricated Pipe Spool Suppling at Germany, SS 321 Spool Fittings Manufacturer & Stockist in Mumbai, India.

In welded ambient temperature applications, these 321 SS Spool Fittings has been replaced by SS 304L. Our Stainless Steel UNS S32100 Spool Fittings has oxidation resistant to 1600 Degree F, stabilized against weld heat affected zone (HAZ) intergranular corrosion, and resists polythionic acid stress corrosion cracking.

This Stainless Steel DIN 1.4541 Spool Fittings has a maximum use temperature of 1500 Degree F (816 Degree C) for code applications like Type 304, whereas Type 304L is limited to 800 Degree F (426 Degree C).


ASTM B366 SS Spool Fittings Specification :

Specifications : ASTM A240 / ASME SA240

Dimensions : ASTM, ASME and API

Size : 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm

Range : 5mm To 150mm

Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished

Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

Thickness : 4.0mm - 100mm

End : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)


SS 321 Spool Fittings Equivalent Grades

SS 321 1.4541 S32100


Stainless Steel 321 Spool Fittings 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 Spool Fittings 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 SS Spool Fittings
  • Stainless Steel 321 Spool Fitting
  • SS 321 Spool Fittings Stockist
  • Stainless Steel 321 Spool Fitting
  • Stainless UNS S32100 Spool Fittings
  • SS 321 Prefabricated Pipe Spool Exporter at Algeri
  • ASTM B336 SS 321 Pipe Spools
  • ASME SB336 Pipe Spools Suppliers
  • SS 321 Spool Fitting
  • Stainless Steel 321 Spool Fittings
  • SS DIN 1.4541 Spool Fitting Suppliers
  • SS UNS S32100 Spool Fitting
  • 321 Stainless Steel Spool Fittings Suppliers at Netherland
  • 321 SS Spool Fitting
  • SS 321 Steel Spool Fitting

Approved manufacturer of
Sabic approved Stainless Steel 321 Spool Fittings
KNPC approved SS 321 Spool Fittings
Williamson approved SS 321 Steel Spool Fittings
MARAFIQ approved Stainless Steel 321 Spool Fitting
Magnetrol approved SS 321 Spool Fittings
QATARGAS approved 321 Stainless Steel Spool Fitting
ONGC approved Stainless Steel 321 Pipe Spools
FW approved Stainless Steel 321 Pipe Spool
IBR approved SS 321 Pipe Spool
Alba approved Stainless Steel 321 Pipe Spool
Kuwait Oil Company approved 321 Pipe Spool
Egyptian General Petroleum Corporation approved Stainless Steel 321 Pipe Spool
Industry We Serve
Stainless Steel 321 Prefabricated Pipe Spool in Petrochemical Industry
Prefabricated Pipe Spool in Oil & Gas Industry
ASTM B336 Stainless Steel 304 Prefabricated Pipe Spool
ASTM SB336 Stainless Steel 321 Prefabricated Pipe Spool in Pharmaceuticals Industry
321 SS Prefabricated Pipe Spool in Chemicals Industry
SS 321 Prefabricated Pipe Spool in Defence Industry
321 Stainless Steel Spool Fittings in Food and Beverages Industry
SS 321 Spool Fittings in Sugar Industry
Stainless Steel 321 Spool Fittings in Paper Industry
321 Stainless Spool Fittings in Cement Industry
321 Spool Fittings Industry at Israel
Spool Fittings in Mining Industry Bharain

We Supply Our Stainless Steel 321 Spool Fitting in Countries like


We are Exports in Exporting SS 321 Spool Fittings worldwide

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

We have supplied of SS 321 Spool Fittings to following places

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