Stainless Steel 321 Pipes and Stainless Steel 321H Tubes is a common austenitic 18/8 stainless steel alloy, with the addition of titanium, making it a good choice in high temperature environments of up to 900° C. These 321 Stainless Steel Pipes and 321H Stainless Steel Tubes has good welding and forming capabilities and is widely used in operating temperature environments in excess of 500° C.
SS 321H Pipes, commonly referred as UNS S32109, is the higher carbon version of the SS 321 Tubes, commonly referred as UNS S32100, to provide higher temperature strength. Also known as WNR 1.4541 Pipes and WNR 1.4878 Tubes, they are mainly used in manufacturing heat exchangers, pressure vessels, pharmaceutical and chemical processing equipments.
In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size of Stainless Steel 321 Pipes and Stainless Steel 321 Tubes from our factory.
Stainless Steel 321 / 321H Seamless Pipes & Tubes
Stainless Steel 321 / 321H Welded Pipes & Tubes
Stainless Steel 321, 321H, UNS S32100, UNS S32109, WNR 1.4541, WNR 1.4878 Pipes, Tubes / Tubing
| STANDARD | UNS | WERKSTOFF NR. |
| SS 321 | S32100 | 1.4541 |
| SS 321H | S32109 | 1.4878 |
Production, Supply, Stock Range of Stainless Steel 321 / 321H Pipes and Stainless Steel 321 / 321H Tubes
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
Thickness Range: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
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
End Protection: Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials: Sizes and Specifications other than above can be manufactured on request
Stainless Steel 321 / 321H, UNS S32100 / S32109, WNR 1.4541 / 1.4878 Pipes & Tubes Available Product Forms :
SS 321 / 321H Welded and Seamless Tubes, Pipes
SS 321 / 321H Coiled Tubing
SS 321 / 321H Hydraulic and Instrumentation Tubes
SS 321 / 321H Seam Welded and Cold Redrawn Pipe and Tubes
SS 321 / 321H Seam Welded, Cold Redrawn and Annealed Pipes and Tubes
SS 321 / 321H Capillary Tubes
Stainless Steel 321 / 321H Pipe Polishing
Stainless Steel 321 / 321H Pipes & Tubes Chemical Composition :
| Grade | C | Mn | Si | P | S | Cr | Ni | Ti | N |
| 321 | 0.08 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-12.0 | 5 x (C+N) min. | 0.1 |
| (0.70max.) | |||||||||
| 321H | 0.04 – 0.10 | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 17.0 – 19.0 | 9.0-12.0 | 5 x (C+N) min. | 0.1 |
| (0.70max.) |
Stainless Steel 321 / 321H Pipes & Tubes Mechanical Properties :
| Grade | 321 |
| Density | 7.92 |
| Melting Range,℃ | 1398 - 1446 |
| Elongation % | 40 |
| Tensile Strength (Mpa) | 515 |
| Yield Strength (Mpa) | 205 |
| Hardness (Brinell) | 217 |
Stainless Steel 321 / 321H Pipes, Tube Stock and Supply Range
| Sr. No. | Product Description | Outside Diamter, OD (in mm) | Wall Thickness, WT (in mm) |
| 1 | Stainless Steel 321 / 321H Round Pipe/Tube | 6mm – 630mm | 0.5mm-30mm |
| 2 | Stainless Steel 321 / 321H Square Pipe/Tube | 12.7mm* 12.7mm to 300mm* 300mm | 0.5mm-30mm |
| 3 | Stainless Steel 321 / 321H Rectangular Pipe/Tube | 10*20mm to 100*200mm | 0.5mm-30mm |
| 4 | Stainless Steel 321 / 321H Colour Coated Pipe/Tube | 6mm to 630mm | 0.5mm-30mm |
| 5 | Stainless Steel 321 / 321H Ornamental Tubes | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| 6 | Stainless Steel 321 / 321H Electropolished Pipes/Tubes | 12.7mm to 250mm | 0.5mm-30mm |
| 7 | Stainless Steel 321 / 321H Slot Round Pipe/Tube | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| 8 | Stainless Steel 321 / 321H Triangle Tube | 16mm to 85mm | 0.5mm-3.0mm |
| 9 | Stainless Steel 321 / 321H Hexagonal Tube | 13mm to 85mm | 0.5mm-2.0mm |
| 10 | Stainless Steel 321 / 321H Handrail Tube | – | 0.5mm-2.0mm |
| 11 | Stainless Steel 321 / 321H U Shaped Tube | 20mm to 200mm | 0.5mm-2.0mm |
| 12 | 321/321H Thin-Wall Stainless Steel Tube | 22mm*0.7mm to 108mm*2.0mm | 0.5mm-2.0mm |
| 13 | 321/321H Inner/Outside Polished Stainless Steel Tube, Pipes | 12.5mm to 203.2mm | 1.0mm – 5mm |
| 14 | Stainless Steel 321 / 321H Capillary Tube | 0.28mm to 10mm | 0.08mm – 1.2mm |
| 15 | Stainless Steel 321 / 321H Seamless Tube | 6mm to 430mm | 0.8mm – 30mm |
Origin of material (Make):
V & M France
Mannesmann Brazil
Dalmine Italy
Tubacex Spain
Nippon Steel & Sumitomo Metal, Japan
Sumitomo Japan
ArcelorMittal Romania
JFE Steel Corporation Japan
Ratnamani India
Rajendra Industrial Corporation India
Outokumpu Finland
Welspun India
UAE, Bahrain, Indonesia, Malaysia, Mexico, Chile, Brazil, Peru, Nigeria, Kuwait, Jordan, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan, Saudi Arabia. Our high quality steel pipes, good customer service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers for steel pipes and tubes in Middle East countries including Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates and Yemen.
Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bhiwandi, Bikaner, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Assam, Siliguri, Jamshedpur, Warangal, Nellore, Agartala and Thoothukudi