AISI 321 stainless steel (SS321) is basically type 304 with the addition of titanium (Ti), which stabilizes carbides against sensitization to prevent intergranular precipitation of chromium carbide when the steel is heated to a temperature within the sensitization range (such as during welding). 321H is to obtain the best creep strength and creep rupture strength. TP321 stainless steel is for seamless, welded, and heavily cold worked pipes.
| Product name | AISI SS321 Stainless Steel Seamless / Welded Elbow |
| Angles | 30° 45° 60° 90° 180° |
| Sizes | From 1/2'' to 72'' |
| Thickness | SCH20, SCH30, SCH40, STD, SCH80, SCH100. SCH120, SCH160. XXS |
| Standard | ASTM A234 ASME B16.9 ASME 16.28 DIN 2605 DIN 2615 DIN 2616 DIN 2617 JIS B2311 JIS B2312 JIS B2313 BS GB |
| Surface | black painting ,painting anti-rust oil |
| Usage | Petroleum,chemical ,electric power , metallurgy , shipbuilding, construction etc. |
| Package | Seaworthy package . Wooden or plywood case or pallet , or as customers' request |
| Sample | available |
| Remark | Special design is available as customers' requirement |
| Nominal Pipe Size (NPS) |
Outsideat Diameter at Bevel D |
Center to Elbows | |||
| Long Radius Elbows |
Short Radius Elbows | ||||
| 90 degree. A |
45 degree B |
90 degree A |
45 degree B |
||
| 1/2 | 21.3 | 38.1 | 15.7 | - | - |
| 3/4 | 26.7 | 38.1 | 19.1 | - | - |
| 1 | 33.4 | 38.1 | 22.4 | 25.4 | - |
| 1-1/4 | 42.2 | 47.8 | 25.4 | 31.8 | - |
| 1-1/2 | 48.3 | 57.2 | 28.4 | 38.1 | - |
| 2 | 60.3 | 76.2 | 35.1 | 50.8 | - |
| 2-1/2 | 73.0 | 95.2 | 44.4 | 63.5 | - |
| 3 | 88.9 | 114.3 | 50.8 | 76.2 | 31.6 |
| 3-1/2 | 101.6 | 133.4 | 57.2 | 88.9 | 36.8 |
| 4 | 114.3 | 152.4 | 63.5 | 101.6 | 42.1 |
| 5 | 141.3 | 190.5 | 79.2 | 127.0 | 52.6 |
| 6 | 168.3 | 228.6 | 95.2 | 152.4 | 63.4 |
| 8 | 219.1 | 304.8 | 127.0 | 203.2 | 84.2 |
| 10 | 273.1 | 381.0 | 158.8 | 254.0 | 105.2 |
| 12 | 323.9 | 457.2 | 190.5 | 304.8 | 126.3 |
| 14 | 355.6 | 533.4 | 222.2 | 355.6 | 147.3 |
| 16 | 406.4 | 609.6 | 254.0 | 406.4 | 168.3 |
| 18 | 457.2 | 685.8 | 285.8 | 457.2 | 189.4 |
| 20 | 508.0 | 762.0 | 317.5 | 508.0 | 210.4 |
| 22 | 558.8 | 838.2 | 342.9 | 558.8 | 231.5 |
| 24 | 609.6 | 914.4 | 381.0 | 609.6 | 252.5 |
| 26 | 660.4 | 990.6 | 406.4 | 660.4 | 273.5 |
| 28 | 711.2 | 1066.8 | 438.2 | 711.2 | 294.6 |
| 30 | 762.0 | 1143.0 | 469.9 | 762.0 | 315.6 |
| 32 | 812.8 | 1219.2 | 501.6 | 812.8 | 378.1 |
| 34 | 863.6 | 1295.4 | 533.4 | 863.6 | 357.7 |
| 36 | 914.4 | 1371.6 | 565.2 | 914.4 | 378.8 |
| 38 | 965.2 | 1447.8 | 599.9 | - | - |
| 40 | 1016.0 | 1524.0 | 632.0 | 1016.0 | 420.8 |
| 42 | 1066.8 | 1600.2 | 660.4 | 1066.8 | 441.9 |
| 44 | 1117.6 | 1676.4 | 695.5 | 1117.6 | 462.9 |
| 46 | 1168.4 | 1752.6 | 726.9 | - | - |
| 48 | 1219.2 | 1828.8 | 759.0 | 1219.2 | 505.0 |
| 52* | 1320.8 | - | - | 1320.8 | 547.1 |
| 54* | 1371.6 | 2057.4 | 852.2 | 1371.6 | 568.1 |
| 56* | 1422.4 | 2133.6 | 883.8 | 1422.4 | 589.2 |
| 60* | 1524.0 | 2286.0 | 946.9 | 1524.0 | 631.3 |
| 66* | 1676.4 | 2514.6 | 1041.6 | - | - |
| 68* | 1727.0 | 2591 | 1073 | 1727 | - |
| 72* | 1829.0 | 2743 | 1137 | 1829 | - |
| 76* | 1930.0 | 2896 | 1199 | 1930 | - |
| 80 | 2032.0 | 3048 | 1263 | 2032 | - |
