321 Stainless Steel Tubes Supplier and Exporter | UNS S32100, SUS 321 & DIN 1.4541 | Leoscor Alloy Pipes
321 Stainless Steel Tubes are titanium-stabilized austenitic stainless steel tubes designed for applications requiring high-temperature strength, corrosion resistance, and reliable performance after welding. The addition of titanium helps prevent carbide precipitation during high-temperature exposure, improving resistance against intergranular corrosion.
Leoscor Alloy Pipes is a trusted supplier, stockist, and exporter of SS 321 Tubes, offering seamless and welded tube solutions for industries operating under heat, pressure, vibration, and continuous service conditions. Our tubes are available in different sizes, wall thicknesses, finishes, and shapes according to industrial requirements.
321 Stainless Steel Tubes are titanium-stabilized austenitic stainless steel tubes based on the 304 stainless steel grade. Titanium addition improves structural stability during welding and high-temperature service by reducing carbide precipitation.
These tubes provide excellent resistance against oxidation and intergranular corrosion under suitable operating conditions. Due to their high-temperature performance and durability, SUS 321 Tubes are widely used in boilers, heat exchangers, exhaust systems, pressure equipment, chemical processing units, thermal plants, and high-temperature piping systems.
321 Stainless Steel Tubes are available in seamless and welded forms and can be supplied in different shapes including round, square, rectangular, oval, and hollow sections. The selection of tube size, wall thickness, pressure rating, and operating temperature depends on the application requirements.
Equivalent Names of 321 Stainless Steel Tubes
| Equivalent Name | Standard / Country | Explanation |
|---|---|---|
| UNS S32100 Tubes | USA (Unified Numbering System) | Material designation used for titanium-stabilized 321 stainless steel tubes. |
| SUS 321 Tubes | Japan (JIS Standard) | Japanese designation used for 321 stainless steel tubes. |
| DIN 1.4541 Tubes | Germany / Europe (DIN Standard) | European material number used for 321 stainless steel tubes. |
| AISI 321 Tubes | USA (AISI Standard) | Common grade designation used for 321 stainless steel tubes. |
Key Features of 321 Stainless Steel Tubes
- Titanium Stabilization: Helps prevent carbide precipitation during welding and high-temperature exposure.
- High Temperature Resistance: Maintains strength and stability under elevated temperatures.
- Excellent Oxidation Resistance: Suitable for thermal and heat-based applications.
- Good Corrosion Resistance: Provides reliable performance in industrial environments.
- Improved Welded Performance: Suitable for fabricated components requiring long-term stability.
- High Durability: Performs well under heat, pressure, and vibration conditions.
- Multiple Product Options: Available in seamless, welded, and customized tube forms.
SS 321 Tubes Specifications
Leoscor Alloy Pipes manufactures and exports 321 Stainless Steel Tubes according to international standards and customer-specific requirements. We offer tubes in different dimensions, thicknesses, schedules, forms, and end finishes to meet various industrial application needs.
If any specific specification is not mentioned below, customers can contact us for customized SS 321 Tube solutions as per project requirements.
| Specifications | Details |
|---|---|
| Standard Specifications | ASTM A213 / ASME SA213 / ASTM A249 / ASTM A269 |
| Dimensions | ASTM, ASME, and API standards |
| SS 321 Tube Size Range | 1/8″ NB to 30″ NB |
| Thickness | 0.35 mm to 6.35 mm |
| Schedule | SCH 20, SCH 30, SCH 40, STD, SCH 60, SCH 80, XS, SCH 120, SCH 140, SCH 160, XXS |
| Type | Seamless / ERW / Welded / Fabricated / LSAW Tubes |
| Form | Round, Square, Rectangular, Hydraulic Tubes |
| Length | Single Random Length, Double Random Length, Cut Length |
| End Finish | Plain End, Beveled End, Threaded End |
Leoscor Alloy Pipes supplies 321 Stainless Steel Tubes in customized sizes, shapes, and specifications for applications including heat exchangers, boilers, chemical processing equipment, thermal systems, and high-temperature industrial applications.
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
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:
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 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.
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
