SUS 321 Tubes Supplier and Exporter | Leoscor Alloy Pipes
Leoscor Alloy Pipes is a trusted manufacturer, stockist, and exporter of high-quality SUS 321 Tubes, supplying corrosion-resistant and heat-resistant stainless steel tubing solutions for industries requiring reliable performance at elevated temperatures.
SUS 321 Stainless Steel Tubes are titanium-stabilized austenitic stainless steel tubes designed to provide excellent resistance against intergranular corrosion and high-temperature oxidation. The addition of titanium improves stability during welding and prolonged exposure to elevated temperatures.
At Leoscor Alloy Pipes, we manufacture and supply 321 Stainless Steel Tubes in various sizes, shapes, finishes, and specifications to meet the requirements of domestic and international customers.
Key Benefits of SUS 321 Tubes
SUS 321 Stainless Steel Tubes from Leoscor Alloy Pipes offer several advantages, including:
- Excellent resistance to intergranular corrosion
- Superior high-temperature stability
- Good oxidation resistance
- Excellent weldability and fabrication properties
- Reliable performance in thermal cycling conditions
- Long service life in demanding applications
Stainless Steel SUS 321 Tubes Specifications
Standard specifications for stainless steel SUS 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 |
| SUS 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 |
Types of SUS 321 Tubes
| Stainless Steel SUS 321 Welded Tubes | SUS 321 SS Welded Tubes |
| SUS 321 Stainless Steel Seamless Tubes | SS SUS 321 Seamless Tubes |
| SS SUS 321 ERW Tubes | SUS 321 Stainless Steel ERW Tubes |
| SUS 321 SS Fabricated Tubes | Stainless Steel SUS 321 Fabricated Tubes |
| SS SUS 321 LSAW Tubes | SUS 321 Stainless Steel LSAW Tubes |
| SUS 321 Stainless Steel Polished Tubes | SS SUS 321 Polished Tubes |
| Stainless Steel SUS 321 Cold Drawn Tubes | SUS 321 SS Cold Drawn Tubes |
| SUS 321 SS Hot Rolled Tubes | Stainless Steel SUS 321 Hot Rolled Tubes |
| SS SUS 321 Cold Rolled Tubes | SUS 321 Stainless Steel Cold Rolled Tubes |
| Stainless Steel SUS 321 Square Tubes | SUS 321 SS Round Tubes |
| SUS 321 SS Hexagonal Tubes | Stainless Steel SUS 321 Tubes |
321 SUS Tubes Seamless Chemical Composition
| Grade | SUS 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 SUS 321 Welded Tubes Mechanical Properties
| Grade | SUS 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 | – |
| Brinell (HB) max | – | |
SUS 321 Tubes Physical Properties
| Grade | SUS 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 | |
Stainless Steel SUS 321 Tubes Equivalent Grades
| Grade | 321 | |
| UNS No | S32100 | |
| Old British | BS | – |
| En | X6CrNiTi18-10 | |
| Euronorm | No | 1.4541 |
| AFNOR | – | |
| Swedish SS | – | |
| Japanese JIS | SUS 321 | |
| GOST | – | |
SUS 321 Tubes Price List
Leoscor Alloys is one of the most competitive suppliers of pipes and tubes from India. Our prices for SUS 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 SUS Stainless Steel Seamless and Welded Tubes.
Stainless Steel SUS 321 Welded Tubes - 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 SUS 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 SUS 321 Tubes.
Why Buy SUS 321 Tubes from Leoscor Alloys
Leoscor Alloys is a leading stockist, distributor, and supplier of 321 SUS 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:
- 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 SUS 321 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










