321 Stainless Steel Tubes - Quick Section Links
321 Stainless Steel Tubes
SUS 321 Tubes is a stainless-steel tube that are used for applications that require high durability, heat resistance, and a long-lasting performance after welding. They contain titanium which shields the material from precipitation of carbide in high-temperature exposure. This stability boost is what makes SUS 321 suitable for systems which are subject to heat, pressure vibration, heat, and constant industrial use. Because of its strength and resistance to oxidation it is frequently chosen for equipment that operates under high temperatures.
What are SUS 321 Tubes?
The SUS 321 tubes are titanium-stabilized, austenitic stainless steel tubes based upon the 304 quality. A stainless steel tube of 321 is used extensively in boilers, heat exchangers and exhaust systems, pressure equipment as well as chemical processing units, thermal plants, as well as high-temperature pipes. The grade is also referred to by the UNS designation S32100 Tubes DIN 1.4541 Tubes and AISI 321 Tubes, which are based on different international standards. This grade is used when the welded components require greater durability during heat exposure. They are resistant to corrosion caused by intergranular and oxidation under the right conditions for service. The choice of the right tube should be based on the temperature, pressure the size of the tube wall thickness and conditions of application.
Why Buy 321 Stainless Steel Tubes from Leoscor Alloys
Leoscor Alloys is a leading stockist, distributor, and supplier of 321 Stainless Steel Tubes from India. With more than three decades of experience, we understand the steel industry deeply. We have huge experience of supplying to all major industries across the world. Our team of dedicated experts with stringent quality policy ensures that we supply best-in-class products meeting and exceeding our client’s expectations. Below are a few quick points about why buying from Leoscor Alloys will give you an undue advantage:
SS 321 Tubes Specifications
Standard specifications for stainless steel SS 321 Tubes. If any specification is not mentioned here, you can contact us. We also manufacture and export any custom specification as per clients requirement.
| Specifications | ASTM A/ASME SA213/A249/A269 |
| Dimensions | ASTM, ASME and API |
| SS 321 Tubes | 1/8″NB TO 30″NB IN |
| Thickness | 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm. |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Tubes |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
321 SS Seamless Tubes Chemical Composition
| Grade | 321 | |
|---|---|---|
| min | max | |
| C | – | 0.08 |
| Mn | – | 2.0 |
| Si | – | 1.0 |
| P | – | 0.045 |
| S | – | 0.030 |
| Cr | 17.0 | 19.0 |
| Ti | 5(C+N) | 0.70 |
| Ni | 9.0 | 12.0 |
| N | – | 0.10 |
ASTM A213 SS 321 Welded Tubes Mechanical Properties
| Grade | 321 | |
|---|---|---|
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 35 | |
| Hardness | Rockwell B (HR B) max | – |
| Rockwell B (HR B) max | – | |
Stainless Steel 321 Tubes Physical Properties
| Grade | 321 | |
|---|---|---|
| Density (kg/m3) | 8000 | |
| Elastic Modulus (GPa) | 193 | |
| Mean Coefficient of Thermal Expansion (m/m/0C) | 0-1000C | 16.6 |
| 0-3150C | 17.2 | |
| 0-5380C | 18.6 | |
| Thermal Conductivity (W/m.K) | at 1000C | 16.1 |
| at 5000C | 22.2 | |
| Specific Heat 0-1000C (J/kg.K) | 500 | |
| Electrical Resistivity (n.m) | 720 | |
SS 321 Tubes Equivalent Grades
| Grade | 321 | |
| UNS No | S32100 | |
| Old British | BS | – |
| En | X6CrNiTi18-10 | |
| Euronorm | No | 1.4541 |
| Name | – | |
| Swedish SS | – | |
| Japanese JIS | SUS 321 | |
| GOST | – | |
Types of Stainless Steel 321 Tubes
| Stainless Steel 321 Welded Tubes | 321 SS Welded Tubes |
| 321 Stainless Steel Seamless Tubes | SS 321 Seamless Tubes |
| SS 321 ERW Tubes | 321 Stainless Steel ERW Tubes |
| 321 SS Fabricated Tubes | Stainless Steel 321 Fabricated Tubes |
| SS 321 LSAW Tubes | 321 Stainless Steel LSAW Tubes |
| 321 Stainless Steel Polished Tubes | SS 321 Polished Tubes |
| Stainless Steel 321 Cold Drawn Tubes | 321 SS Cold Drawn Tubes |
| 321 SS Hot Rolled Tubes | Stainless Steel 321 Hot Rolled Tubes |
| SS 321 Cold Rolled Tubes | 321 Stainless Steel Cold Rolled Tubes |
| Stainless Steel 321 Square Tubes | 321 SS Round Tubes |
| 321 SS Hexagonal Tubes | Stainless Steel 321 Tubes |
Stainless Steel 321 Tubes also known as
AISI / JIS SS 321 Tubes Stockist, ASTM A249 SS 321 Round Tubes, SS 321 High-Pressurebing, Stainless Steel 321 Square Tube, ASME SA213 321 SS Rectangular Tubes, SS 321 Oval Tubes, Stainless Steel 321 Electropolished Tubes Exporter in India, ASME SA249 SS 321 Cold Rolled Tubes Exporter, Trader, SS 321 Decorative Tube, ASTM A213 SS 321 ERW Tube, SS 321 EFW Tubing, TP 321 Stainless Steel Cold Drawn Tubes, SS TP321 Seamless Tubing, Stainless Steel 321 Heat Exchanger Tubing Supplier
Stainless Steel 321 Tubes Price List
Leoscor Alloys is one of the most competitive suppliers of pipes and tubes from India. Our prices for SS 321 Tubes are very competitive.
Please click on the request a quote button or click here to request the updated price list and ready stock information along with your requirement. Leoscor Alloys maintains a stock of all standard items and can export them at best price for 321 Stainless Steel Seamless and Welded Tubes.
321 Stainless Steel Welded Tubes Applications - Industries & Applications
Our pipes and tubes are used in a wide range of applications and various industries. Below are a few of them:
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries
ASTM A213 SS 321 Tubing Stock Availability
We maintain huge inventories of all standard sizes and grades. Please send us your complete requirement and we will send you the availability with the best quote for Stainless Steel 321 Tubes.
- Huge inventory of all standard sizes and grades.
- Distributors of all reputed origins and manufacturers.
- Strict quality control policies and highly experienced team.
- Strong logistics & delivery channels.
- Modern Infrastructure with huge storage capacity.
- An ISO 9000:2015 Certified Company.
Prominent Countries where we export 321 SS Tubes
Exporting Pipes & Tubes to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countires includes Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, South Korea, South Africa, Sri Lanka, Syria, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen.
We are one of the top:
- Tubes exporters to Singapore
- Tubes exporters to Malaysia
- Tubes exporters to Hongkong
- Tubes exporters to Thailand
- Tubes exporters to Indonesia
- Tubes exporters to Taiwan


