SS 321/321H Threaded Forged Fittings
Stainless Steel 317L Forged Threaded Fittings Specifications |
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| Specifications | : | ASTM A182 & ASME SA182 |
| Size | : | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Standards |
: | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Class | : | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Type | : | Threaded Fittings |
Types of SS 317L Threaded Forged Fittings
| Stainless Steel 321/321H Threaded Elbow | SS 321 45 Degree Threaded Elbow 321H SS 90 Degree Forged Threaded Elbow 321 Stainless Steel 45 Degree Forged Elbow SS UNS S32109 45 Degree Forged Elbow SS WERKSTOFF NR. 1.4878 45 Degree Elbow ASME SA182 321H 90 Degree Forged Threaded Elbow |
| Stainless Steel 321 Threaded Tee | SS 321 Threaded Tee 321H SS Forged Tee 321 Stainless Steel Forged Threaded Tee SS UNS S32109 Threaded Tee SS WERKSTOFF NR. 1.4878 Forged Tee ASTM A182Stainless Steel Threaded Tee |
| Stainless Steel 321/321H Threaded Cross | SS 321 Threaded Cross 321H SS Forged Threaded Cross 321 Stainless Steel Threaded Cross SS UNS S32109 Forged Threaded Cross SS WERKSTOFF NR. 1.4878 Threaded Cross ASTM A182 321H Stainless Steel Threaded Cross |
| Stainless Steel 321/321H Threaded Cap | SS 321H Threaded Cap 321 SS Forged Threaded Cap 321H Stainless Steel Threaded Cap SS UNS S32109 Forged Threaded Cap SS WERKSTOFF NR. 1.4878 Threaded Cap ASME SA182 321 Stainless Steel Forged Threaded Cap |
| Stainless Steel 321/321H Threaded Coupling | SS 321 Threaded Coupling 321H SS Threaded Coupling Stainless Steel 321 Threaded Coupling SS UNS S32109 Threaded Coupling SS WERKSTOFF NR. 1.4878 Threaded Coupling ASME 16.11 Stainless Steel Threaded Coupling |
Types of SS 317L Threaded Forged Fittings
SS 321/321H Forged Fittings 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 |
Stainless Steel 321 Threaded Fitting 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 % |
Equivalent Grades for 321 Stainless Steel Forged Fittings
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
