ASTM A815 covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction. Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. The steel shall be melted by electric furnace, vacuum furnace, or electric furnace followed by vacuum or electroslag-consumable remelting. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining or by combination of two or more of these operations.
The materials shall undergo heat treatment and shall follow the required cooling process and tempering temperature. Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, silicon, sulfur, nickel, chromium, molybdenum, copper, nitrogen, and titanium. The mechanical properties of the fitting material shall conform to the required values in yield strength, tensile strength, elongation, and hardness.
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Name
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Pipe elbow
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Size
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1/2"-48"
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Standard
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ANSI B16.9, EN10253-4, DIN 2605, GOST 17375-2001, JIS B2313, MSS SP 75, etc.
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Wall thickness
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SCH5S, SCH10S, SCH10, SCH40S, STD, XS, SCH80S, XXS, SCH20, SCH30, SCH40, SCH60, SCH80, SCH160, XXS and etc.
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Elbow
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30° 45° 60° 90° 180°,etc
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Radius
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LR/long radius/R=1.5D,SR/Shrot radius/R=1D
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End
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Bevel end/Plain end
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Surface
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Pickling,sand blasting, polishing,anneaking.
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Stainless steel: A403 WP304, A403 WP316/316L, A403 WP321, A403 WP310S,
A403 WP347H, A403 WP316Ti, A403 WP317, 904L, 1.4301,1.4307,1.4401,1.4571, 1.4541, 254Mo and etc. |
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Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500, UNS32750 ,
UNS32760, 1.4462,1.4410,1.4501 and etc. |
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| NPS | O.D.D | 45deg Long Rad Center to End B | 45deg 3D Center to End B | ||
| 1/2 | 21.3 | 16 | … | ||
| 3/4 | 26.7 | 19 | 24 | ||
| 1 | 33.4 | 22 | 31 | ||
| 1.1/4 | 42.2 | 25 | 39 | ||
| 1.1/2 | 48.3 | 29 | 47 | ||
| 2 | 60.3 | 35 | 63 | ||
| 2.1/2 | 73 | 44 | 79 | ||
| 3 | 88.9 | 51 | 95 | ||
| 3.1/2 | 101.6 | 57 | 111 | ||
| 4 | 114.3 | 64 | 127 | ||
| 5 | 141.3 | 79 | 157 | ||
| 6 | 168.3 | 95 | 189 | ||
| 8 | 219.1 | 127 | 252 | ||
| 10 | 273 | 159 | 316 | ||
| 12 | 323.8 | 190 | 378 | ||
| 14 | 355.6 | 222 | 441 | ||
| 16 | 406.4 | 254 | 505 | ||
| 18 | 457 | 286 | 568 | ||
| 20 | 508 | 318 | 632 | ||
| 22 | 559 | 343 | 694 | ||
| 24 | 610 | 381 | 757 | ||
| 26 | 660 | 406 | 821 | ||
| 28 | 711 | 438 | 883 | ||
| 30 | 762 | 470 | 964 | ||
| 32 | 813 | 502 | 1010 | ||
| 34 | 864 | 533 | 1073 | ||
| 36 | 914 | 565 | 1135 | ||
| 38 | 965 | 600 | 1200 | ||
| 40 | 1016 | 632 | 1264 | ||
| 42 | 1067 | 660 | 1326 | ||
| 44 | 1118 | 695 | 1389 | ||
| 46 | 1168 | 727 | 1453 | ||
| 48 | 1219 | 759 | 1516 | ||
ASTM A815 UNS Stainless Steel Pipe Fittings Other Buttweld Fttings Products - Long Radius Elbow 90°, 45° Elbow, 90° Short Radius Elbow, 180°Long Radius Elbow, 180° Short Radius Elbow.
