ASTM A358 TP321 Welded Austenitic Stainless Steel Pipe
GNEE is a leading supplier, distributor, and manufacturer of ASTM A358 Grade 321 EFW (Electric Fusion Welded) pipe. We offer ASME SA358 TP 321 stainless steel EFW pipe for industrial applications such as aircraft exhaust manifolds, furnace components, and heat exchangers.
321 stainless steel welded pipe is a stainless steel based on austenitic 18/8 steel (Grade 304) stabilized with the addition of titanium (321) or niobium (347). It is less susceptible to intergranular corrosion when heated within the carbide precipitation temperature range of 425-850°C. Grade 321 stainless steel is the stainless steel of choice for applications up to approximately 900°C, offering high strength, resistance to scaling, phase stability, and subsequent resistance to aqueous corrosion.
We can provide ASTM A358 Grade 321 welded pipe in custom sizes and specifications to meet ASTM, ASME, and other equivalent standards. Mail:es@gescosteel.com
Specifications
1. Material Grade: TP304 , TP304L , TP304H , TP316 , TP316L , TP316Ti , TP309S , TP310S , TP321 , TP321H , TP347 , TP347H , etc
2. Outer Diameter: 10.3mm-1219mm
Wall Thickness : 1.24mm-59.54mm
3. Length: Normally fixed length 6m , can as per customer's requirement
4. Standard: ASTM A312 ; ASTM A358 ; ASTM A789 ; ASTM A790 ect .
5. Process Method: ERW , EFW etc
ASTM A358 TP321 Stainless Steel Pipe Equivalent Grades
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
EN |
|
SS 321 |
1.4541 |
S32100 |
SUS 321 |
X6CrNiTi18-10 |
|
SS 321H |
1.4878 |
S32109 |
SUS 321H |
X12CrNiTi18-9 |
ASTM A358 TP321 Welded Austenitic Stainless Steel Pipe Chemical Composition
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
N |
Ni |
Ti |
|
SS 321 |
0.08 max |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
17.00 - 19.00 |
0.10 max |
9.00 - 12.00 |
5(C+N) – 0.70 max |
|
SS 321H |
0.04 – 0.10 |
2.0 max |
1.0 max |
0.045 max |
0.030 max |
17.00 - 19.00 |
0.10 max |
9.00 – 12.00 |
4(C+N) – 0.70 max |
ASTM A358 TP321 Welded Stainless Steel Pipe Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Application
Heat Exchanger & Boiler
Oil & Gas Refining
Oil & Gas Pipeline
Petrochemical Industry
Pharmaceutical Industry
Food Industry
Water Treatment
Onshore & Offshore Platform, Ship building
Electric Plant, Sugar Plant, Paper making factory
Others
Value-add services
Factory Capacity: Over 50,000 square meters of production space, equipped with CNC cutting, slitting, and polishing lines, with an annual export volume exceeding 30,000 tons. Fully ISO 9001, SGS, and BV certifications are in place.
Quality Assurance: 100% PMI testing, ultrasonic flaw detection, and mechanical property testing are performed. Advanced annealing and leveling equipment ensures consistent flatness and precision.
Highest quality packaging and shipping
Standard export seaworthy package, suitable for all kinds of transportation, or as required by the customer. Each stainless steel welded pipes is protected with:
• Water-proof paper wrapping
• Edge protection strips
• Strong wooden pallets or wooden boxes for export
Customer Visit
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