Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 7DAYS |
| Packaging Details | PLYWOOD CASE,BUNDLE |
| TYPE | SEAMLESS,WELDED |
| MATERIAL | TP321/321H |
| STANDARD | ASTM ASME A213,A312,A269 |
| SOLUTION | PICKLED AND ANNEALED |
| Brand Name | YUHONG |
| Model Number | ASTM A213 TP321 ,ASME SA213 TP321 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 7DAYS |
| Packaging Details | PLYWOOD CASE,BUNDLE | TYPE | SEAMLESS,WELDED |
| MATERIAL | TP321/321H | STANDARD | ASTM ASME A213,A312,A269 |
| SOLUTION | PICKLED AND ANNEALED | Brand Name | YUHONG |
| Model Number | ASTM A213 TP321 ,ASME SA213 TP321 | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | Stainless Steel Heat Exchanger Tube ，Seamless U Bend Tube TP321 ，Bright Annealed ASME SA213 Tube | ||
Stainless Steel Seamless Heat Exchanger Tube ASME SA213 TP321 Bright Annealed U Bend Tube
TP321 is a standard austenitic stainless steel(under ASME/ASTM standards). It is equivalent to Grade 1.4541 (X10CrNiTi18-9) in Germany or 06Cr18Ni11Ti in China.
It is a stabilized version of 304 stainless steel (18% Cr, 8% Ni) with the addition of Titanium (Ti). This modification gives TP321 two major advantages:outstanding resistance to intergranular corrosion and excellent high-temperature strength.
| Feature | Advantage | Why it matters |
| Corrosion Resistance | Excellent resistance to intergranular corrosion | The titanium (Ti) binds with carbon to prevent chromium carbide precipitation at grain boundaries, eliminating the risk of corrosion in welded or high-temperature environments (450-850°C / 840-1560°F). |
| High-Temperature Strength | Superior creep resistance and strength | Unlike 304, TP321 maintains structural integrity and strength under long-term exposure to high temperatures (up to ~900°C / 1650°F), making it ideal for heat exchangers, boilers, and exhaust systems. |
| Mechanical Properties | Higher strength than 304 | TP321 offers higher tensile strength (≥515 MPa) and yield strength (≥205 MPa) at both room and elevated temperatures. |
Mechanical & Physical Properties
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
Chemical Composition
| SS 321 | SS 321H | |
| Ni | 9 – 12 | 9 – 12 |
| Cr | 17 – 19 | 17 – 19 |
| C | 0.08 max | 0.04 – 0.10 |
| N | 0.10 max | |
| Fe | Balance | |
| Mn | 2 max | 2 max |
| Si | 0.75 max | 0.75 max |
| S | 0.03 max | 0.03 max |
| P | 0.045 max | 0.045 max |
| Ti | 5xC min 0.60% max |
4xC min 0.60% max |
The main difference between TP347 and TP347H lies in their carbon content and the resulting high-temperature performance. TP347H is the high-carbon version of TP347, specifically designed for applications requiring superior creep strength at elevated temperatures.
Due to its stability under heat and corrosion, TP321 is used in demanding environments:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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