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Address: Room 1510, Hengrun International Building, Haidian District, Beijing, China.
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Overview of ASTM A403 Stainless Steel Pipe Fittings
ASTM A403 pipe fittings are crafted from austenitic stainless steel, utilizing welding to form the pipe assemblies. These fittings are renowned for their excellent corrosion resistance, high-temperature strength, and robust performance in low temperatures, making them indispensable across various sectors and industries for sophisticated pipeline systems.
Understanding the ASTM A403 Standard
The ASTM A403 standard outlines the specifications for wrought austenitic stainless steel piping components, encompassing a diverse array of stainless steel grades such as 304, 316, 316L, 321, 904L, and 31254. This specification governs the production, inspection, and testing protocols for stainless steel butt welding fittings. It categorizes and labels fittings based on material type, size, and pressure rating to define their application scope. Moreover, the standard details essential criteria for chemical composition, mechanical properties, heat treatment, and surface finish.
Range of ASTM A403 Pipe Fittings
The ASTM A403 series includes grades such as WP304/304L, WP316/316L, WP904L, WP317/317L, WP31254, WP347, and WP321. These fittings are designed to meet the demands of pipeline applications in varied operational environments.
Our Production Capabilities
Our facility is equipped to manufacture high-quality carbon steel, stainless steel, and alloy steel pipe fittings conforming to international standards like ASME/ANSI, JIS, DIN, and ISO. Our product range includes a variety of fittings such as equal diameter tees, reducing tees, elbows, crosses, concentric reducers, and eccentric reducers. We are committed to delivering the highest quality pipe fittings, ensuring prompt delivery and dependable service at competitive rates.
ASME B16.9
| Nominal Size | Outside Diameter at Bevel | Center to Center | Back to Face | |||
| 180°Returns | ||||||
| DN | NPS | OD | O | K | ||
| LR | SR | LR | SR | |||
| 15 20 25 | 1/2 3/4 1 | 21.3 26.7 33.4 | 76 76 76 |
51 | 48 51 56 |
41 |
| 32 40 50 | 1 1/4 1 1/2 2 | 42.2 48.3 60.3 | 95 114 152 | 64 76 102 | 70 83 106 | 52 62 81 |
| 65 80 90 100 | 2 1/2 3 3 1/2 4 | 73.0 88.9 101.6 114.3 | 190 229 267 305 | 127 152 178 203 | 132 159 184 210 | 100 121 140 159 |
| 125 150 200 | 5 6 8 | 141.3 168.3 219.1 | 381 457 610 | 254 305 406 | 262 313 414 | 197 237 313 |
| 250 300 350 | 10 12 14 | 273.0 323.8 355.6 | 762 914 1067 | 508 609 711 | 518 619 711 | 391 467 533 |
| 400 450 500 | 16 18 20 | 406.4 457.0 508.0 | 1219 1372 1524 | 813 914 1016 | 813 914 1016 | 610 686 762 |
550 |
22 |
559.0 | 1676 1829 | 1118 1219 | 1118 1219 | 838 914 |
