Stainless Steel 321 ASTM A213 A249 A269 A312 A376 UNS S32100
Seamless Welded Pipe Tube
1. Available Types of TP 321 Stainless Steel Pipe / TP 321 Steel
Pipes / 321 SS Pipe
| Stainless Steel 321 Pipes | 321 Steel Pipe | SS 321 Pipes |
| TP 321 Steel Seamless Pipe | 321 SS Seamless Pipe | 321 Steel Welded Pipe |
| Stainless Steel 321 ERW Pipe | UNS S32100 Steel ERW Welded Pipes | TP 321 Stainless Steel EFW Pipes |
| Stainless 321 Round Pipe | Steel 321 Square Pipe | SS TP 321 Rectangular Pipes |
| Steel 321 Large Diameter Pipe | TP 321 SS Welded Pipes | Stainless Steel 321 Seamless Pipes |
| TP 321 Steel Pipes | Stainless Steel 321 Welded Pipes | S32100 SS 321 EFW Pipes |
2. 321 Stainless Steel Seamless Pipes, TP 321 Steel Welded Pipes,
321 Steel Pipe Specifications
| Material | Grade |
| GRADES | TP 321 Stainless Steel Pipes / UNS S32100 / DIN 1.4541 |
| SIZE | 1/2" NB to 24" NB |
| STANDARDS | ASTM A249 - A269 - A312 - A358 - A409 - A554 - A778 - A789 - A790 |
| TYPE | Seamless, Welded, EFW, ERW, Fabricated |
| FORM | Round Pipes, Square Pipes, Rectangular Pipes, Oval Pipes, Hydraulic
Pipe, etc. |
| END | Plain End, Treaded, Beveled End |
| TOLERANCE on Length | Commercial Length: 6000mm +/- 30mm
Fix Length: from 1200 mm up to 12000mm with a tolerance up to -0/+
5mm |
| FINISH | Seamless, Welded, Brushed, Pickled, Solution Annealed and Pickled
up to O.D. 219.1mm, Polished Grit 120 - 600, Mirror Polished |
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN |
| SS 321 | 1.4541 | S32100 | - | - | - | - | - |
3. Production according to national and international standards
(e.g. ASME, ASTM, API, EN, DNV, etc.)
Chemical Composition :
| Grade | | C | Mn | Si | P | S | Cr | N | Ni | TI |
| 321 | Min | - | - | - | - | - | 17.0 | - | 9.00 | 5(C+N) |
| max | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 19.0 | 0.10 | 12.00 | 0.70 max |
Mechanical properties
| Grade | Tensile Strength (MPa) min | 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 |
Physical properties
| Grade | Density
(kg/m3) | Elastic Modulus
(GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity
(W/m.K) | Specific Heat 0-100°C
(J/kg.K) | Elec 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 |
Grade specifications
| 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 |
4. Types Of Stainless Steel 321 Pipes & Tubes :
• ASTM A312 TP 321 Stainless Steel Seamless Pipes
• ASTM A213 TP 321 Stainless Steel Seamless Tubes
• ASTM A312 TP 321 Stainless Steel Welded Pipes
• ASTM A249 TP 321 Stainless Steel Welded Tubes
• SS 321 Seamless Pipes
• SS 321 ERW Pipes
• SS 321 EFW Pipes
• SS 321 Welded Pipes
• SS 321 Rectangular Pipes
• SS 321 Seamless Tubes
• SS 321 ERW Tubes
• SS 321 EFW Tubes
• SS 321 Welded Tubes
• SS 321 Rectangular Tubes
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6. Stainless Steel 321 Seamless Welded Pipe Tube FAQ:
Q:How does your factory do regarding quality control?
A:Quality is priority. we always attach great importance to quality
controlling from the beginning to the end. Mill Test Certificate is
supplied with shipment. If needed, a Third Party Inspection is
acceptable.
Q:May I have some samples before bulk order?
A:Yes, of course. samples are free but you have to pay the courier.
Q:Can we visit your Company?
A:Surely. Welcome to China and we will be honored to have a
customer and friend.
Q:What is the payment terms?
A:T/T, L/C ,Western Union,etc.
Q:What's your delivery time?
A:For stocks, we can send the goods to loading port within 7 days
after receiving your deposit.
For production period, it usually needs about 10days- 60days after
receiving the deposit.
Q:Is it OK to mark my logo on your products?
A:Yes. OEM and ODM are available for us.
