Stainless Steel 321 Pipe
Stainless Steel 321 Pipe Spec Chart
| Specification | ASTM A312 |
|---|---|
| Finish | AP (Annealed & Pickled), Polished, MF, BA (Bright & Annealed) |
| Origin | European, Japanese, Korean, US, Russian, Indian |
| Type | ERW / Seamless / Fabricated / Welded / CDW |
| Form | Round, Square, Rectangular |
| Surface Finish: | No.4, 2B, No.8 Mirror Finish, No.1 |
| Delivery Condition | Polished, Annealed and Pickled, Cold Drawn, Bright Annealed |
| Seamless Pipe size | 5.0 mm – 1219.2 mm |
| Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
ASTM A312 TP321 Pipe Chemical Composition
| 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 |
Mechanical Properties of SS 321 Seamless Pipe
| 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 |
316 SS Welded Pipe Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Stainless Steel 321 Seamless Pipe Equivalent Grade
| 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 |