Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Plywood case,Bundle |
| Product Name | Stainless Steel Seamless Pipe |
| Standard | ASTM A312/ ASME SA312 |
| Material | TP304 TP304L TP316L TP316Ti TP321 TP347H |
| Wall Thickness | Schedule 5S to Schedule XXS. |
| Length | Single Random, Double Random & Cut Length. |
| Type | Seamless , Welded |
| High Light | ASTM A312 TP321 Stainless Steel Seamless Pipe, UNS S32100 Pickled and Annealed Pipe |
| Pipe End | Plain End, Beveled End |
| Brand Name | YUHONG |
| Model Number | ASTM A213 TP304/304L/304H , TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L , 2205, 2507, S31803, S32750, S32760 |
| 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 | 7 DAYS |
| Packaging Details | Plywood case,Bundle | Product Name | Stainless Steel Seamless Pipe |
| Standard | ASTM A312/ ASME SA312 | Material | TP304 TP304L TP316L TP316Ti TP321 TP347H |
| Wall Thickness | Schedule 5S to Schedule XXS. | Length | Single Random, Double Random & Cut Length. |
| Type | Seamless , Welded | High Light | ASTM A312 TP321 Stainless Steel Seamless Pipe, UNS S32100 Pickled and Annealed Pipe |
| Pipe End | Plain End, Beveled End | Brand Name | YUHONG |
| Model Number | ASTM A213 TP304/304L/304H , TP310S/310H, TP316L/316H/316Ti ,TP317/317L , TP321/321H, TP347/347H 904L , 2205, 2507, S31803, S32750, S32760 | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASTM A312 TP321 stainless steel pipe ，UNS S32100 seamless industrial pipe ，stainless steel seamless pipe with warranty | ||
ASTM A312 / ASME SA312 TP321 / UNS S32100 Stainless Steel Seamless Pipe
TP321 / UNS S32100 is a robust choice for applications demanding thermal stability and corrosion resistance, especially where welding is involved. Always confirm project-specific requirements with engineering standards. Composition: Chromium (17–19%), Nickel (9–12%), Titanium (≥5xC% min, typically 0.4–0.7%). Titanium Stabilization: Added to prevent sensitization (chromium carbide precipitation at grain boundaries) during welding or exposure to 425–815°C (800–1500°F). This enhances corrosion resistance post-welding.
Equivalent Material of TP321, TP321H Stainless Steel seamless Pipe
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. | |||||||
Chemical Composition of ASTM A312 TP321 Stainless Steel Seamless Pipes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321 | min. max | - 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | - | 9.0 12.0 | 0.10 | Ti=5(C+N) 0.70 |
| 321H | min. max | 0.04 0.10 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 | - | 9.0 12.0 | - | Ti=4(C+N) 0.70 |
Mechanical Properties of ASTM A312 TP321 Stainless Steel Seamless Pipes
| Grade | Tensile Strength | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 321H also has a requirement for a grain size of ASTM No 7 or coarser. | |||||
Physical Properties of ASTM A312 TP321 Stainless Steel Seamless Pipes
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Applications
Heat exchangers, boilers, superheaters
Petrochemical/oil & gas refining
Aircraft exhaust systems
Food processing equipment
Pharmaceutical and chemical plants
High-temperature piping in power plants
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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