ASTM A213 TP321 Stainless Steel Seamless Tube
SA213 TP321 is a heat exchange tube specification made of 321 austenitic stainless steel. This specification covers piping products for heat exchangers of various material grades, including ferritic and austenitic steels. The SA213 TP321 material contains titanium in its composition, which reduces density and provides exceptional corrosion resistance.
The addition of titanium minimizes the risk of intergranular corrosion common in high carbon steels, making 321 stainless steel exhaust pipes durable at high temperatures. These seamless tubes are ideal for heat exchangers, superheaters, boilers, and condensers. Available in various types including easy-to-install hoses, our SS 321 seamless pipes are suitable for small size applications requiring high precision.
Mechanical Properties
| Nominal OD |
Nominal Wall |
Ultimate KSI |
Yield KSI |
Elongation |
| .188 and less |
.016 and less |
75-120 maximum |
|
35% |
|
Over .016 |
75-105 maximum |
30 min |
35% |
| Over .188 thru .500 incl |
.010 and less |
75-115 maximum |
30 min |
35% |
|
Over .010 |
75-105 maximum |
|
35% |
| Over .500 |
All |
75-100 maximum |
30 min |
35% |
Chemical Composition
| Element |
Min (%) |
Max (%) |
| Nickel (Ni) |
9.00 |
12.00 |
| Chromium (Cr) |
17.00 |
19.00 |
| Manganese (Mn) |
|
2.00 |
| Carbon (C) |
|
0.080 |
| Silicon (Si) |
|
1.00 |
| Sulfur (S) |
|
0.030 |
| Phosphorus (P) |
|
0.045 |
Available Product Types
| ASME SA213 TP321 Exhaust Tubing |
321 Stainless Steel DOM Tubing |
| SS 321 Rectangular Tubing |
SA 213 TP 321 Stainless Steel Hydraulic Tubing |
| ASTM A 213 321 Stainless Steel Seamless Tubing |
ASME SA213 TP321 Round Tubing |
| ASTM A213 TP 321 EFW Tube |
JIS SUS321 UNS S32100 High Precision Tubes |
| SA 213 Gr 321 ERW Tube |
SA213 TP321 Coil Tubing |
| Stainless Steel 321 Electropolished Tubing |
SS 321 12mm Tubing |
| SA213 321 SS Small Diameter Tubing |
ASTM A 213 321 Stainless Steel Elliptical and Oval Tubes |
| JIS SUS321 UNS S32100 High Pressure Tubing |
Stainless Steel 321 Heat Exchanger Tubes |
| Grade SA213 TP321 Cold Drawn Seamless Tubing |
SA213 321 SS Condenser Tubes |
| 321 Stainless Steel Instrument Tubing |
SS UNS S32100 Sanitary Tube |
| SA 213 TP 321 Stainless Steel Square Tubing |
DIN 1.4541 Stainless Steel 321 1 inch Tube |
Technical Specifications
Standards: AMS 5557, 5570, 5576, 5645, MIL-T-8606, 8808, 8973
Primary Specification: ASTM A213 / ASME SA 213 for Seamless Superheater, Condenser, Hydraulic, Boiler and Heat-Exchanger Tubes
Shapes Available: Round, Rectangular, Square, Hydraulic, Straight, "U" Shape, Coiled, Honed Tubes, Pan Cake Coils
Manufacturing Types: Seamless / ERW / Welded / Fabricated / CDW / CDS / DOM / CEW / 100% X Ray Welded
Delivery Conditions: Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF
Surface Finishes: BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, various grit finishes, or custom finishes per customer specification
Thickness Range: SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS
Standards Compliance: SUS, JIS, AISI, ASTM, GB, DIN, EN including relevant international standards
Value Added Services
- Cutting
- Beveling
- Threading
- Polishing (Electro & Commercial)
- Draw & Expansion as per required Size & Length
- Destructive and Non-Destructive Testing
- Ultrasonic Testing
- Annealed & Pickled Bending
Technical Details
SWG & BWG: 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
End Types: Plain End, Beveled End, Threaded SS 321 Tube
Processing Services: Bending, Welding, Decoiling, Punching, Cutting, Moulding
Manufacturing Techniques: Cold drawn, Cold rolled, Hot rolled, Extrusion Tube
Tolerances:
- Outer Diameter: +/- 0.2mm
- Thickness: +/- 10% or as customer request
- Length: +/- 10mm
Marking Includes: Specification, Material Grade, Nominal Size, Schedule or Wall Thickness, Method of Manufacturing, Heat Number, Manufacturer's Name or Custom Logo
Sample Marking: 321 Stainless Steel 12" NB SCH 40S SEAMLESS HEAT NO. XXXX
Quality Certifications
- DFARS compliant
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- 100% Radiography Test Report
- Raw Materials Certificate
- Third Party Inspection Report
- Fumigation Certificates
- Heat Treatment Charts
- HS Code Commercial Invoice
- Form A for Generalized System of Preferences (GSP)
- Manufacturer Test Certificate
- Moisture testing
- Surface roughness measurement
- Laboratory Test Certificate from Govt. Approved Lab
Packaging
Packed in PE Fabric Bundles or ply wooden box wrapped in plastic or Standard seaworthy export packing or as per customers' request
Applications
Common industrial services including petroleum, chemical, paper, fertilizer, fabric, aviation and nuclear industries. Suitable for fluid, gas and oil industry applications, heat transmission and pressure service, construction and ornamental uses, boilers and heat exchangers.
- Food processing equipment, especially beer brewing, milk processing and wine making
- Kitchen benches, sinks, sinks, equipment and appliances
- Building paneling, railings and decoration
- Chemical containers, including for transportation
- Heat exchangers
- Woven or welded screens for mining, quarrying and water filtration
- Threaded fasteners
- Springs
- Various industrial applications
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