ASTM A403 304L Stainless Steel 90 Degree LR Pipe Elbow is a pipe fitting that connects two lengths of pipe or tubing to change the direction in piping and plumbing systems, there are common angles having 45 degree, 90 degree and 180 degree, 304/304L and 316/316L stainless steel elbows can withstand high pressure and resist corrosion, duplex steels and nickel alloys are available.
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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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| ANSI Specifications | ANSI B16.9 |
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| ASME Specifications | ASME SA-403 |
| ASTM Specifications | ASTM A-403 WPW |
| Elbow Degree | 30, 45, 60, 90, 180 Degree |
| Fitting Size | 1/2″ Up To 10″ |
| Schedule | Sch5s, 10S, 40S, 80S |
| Elbow Type | Long Radius, Short Radius, Straight |
| Material | Stainless Steel 304/304L, 316/316L, 321 |
There are various stainless steels to be adapted for pipe elbow used in different applications, as we know that stainless steel exhibits excellent properties to resist corrosion, heating and high pressure, thus, stainless steel elbow is often used in critical applications.
304 and 316L are the most used stainless steel grades, they are both high chromium austenitic grades and can be met the most cases, and other grades are available, such as 321/321H and 347/347H. Some special alloys are usually for the elbow as well, like 904L, and 2205.
| Grade | Carbon | Silicon | Manganese | Chromium | Nickel | Molybdenum | Sulfur | Phosphorous |
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| WP 304 | 0,08 | 1,0 | 2.00 | 18.0 – 20.0 | 8.0 – 11.0 | – | 0,03 | 0,045 |
| WP 304L | 0,035 | 1,0 | 2.00 | 18.0 – 20.0 | 8.0 – 13.0 | – | 0,03 | 0,045 |
| WP 316 | 0,08 | 1,0 | 2.00 | 16.0 – 18.0 | 10.0 – 14.0 | 2.00 – 3.00 | 0,03 | 0,045 |
| WP 316L | 0,035 | 1,0 | 2.00 | 16.0 – 18.0 | 10.0 – 15.0 | 2.00 – 3.00 | 0,03 | 0,045 |
| WP 321 | 0,08 | 1,0 | 2.00 | 17.0 – 19.0 | 9.0 – 12.0 | – | 0,03 | 0,045 |
