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Butt Weld Fittings ASTM A403 WP316L-S Stainless Steel Type A Stub End MSS SP-43
The ASTM A403 WP316L Stainless Steel Pipe Fittings is a common austenitic steel alloy. With primary constituents of iron, chromium, nickel, and molybdenum, these fittings have highly resistant to corrosion and can suffice under extreme temperatures. The WP316L SS Pipe Fittings have excellent welding and forming properties. These low carbon steel fittings also have high tensile and yield strength.
Stub Ends are buttweld fittings that can be used (in combination with a lap joint flange) alternatively to welding neck flanges to make flanged connections. The type A stub end is used for standard lap joint flange. The lap thickness on the stub end is greater than or equal to the nominal thickness of pipe wall.
The ASTM A403 WP316L Stainless Steel Stub End is essential in piping applications. Due to its great corrosion resistance and excellent strength, this stud end has extensive use in chemical processing, petrochemicals, and food industries. It is also used in high-temperature environments, such as power plants, where the piping systems must withstand extreme heat and pressure. ASTM A403 WP316L Stainless Steel Stub End is highly recommended in cryogenic applications, because it has excellent toughness and resistance to low-temperature brittleness.
Common Types:
Type A: Type A” is the common type as it is matching with lap joint flange specially.
Type B: This type is mainly used for slip-on flanges and backing flanges, its lap angle is different from Type A.
Type C: It can be used either with lap joint flange or slip-on flange. But it is not common type.
Specifications:
| Specification | ASTM A403, ASME SA403 |
| Size | 1⁄₂” to 48” |
| Thickness | Schedule 5S To Schedule S160, XXS. |
| Dimension | ASME B16.9, MSS-SP-43 Type B, MSS-SP-43 Type A, ASME/ANSI B16.28, JIS B2312, JIS B2313 |
| Pressure Rating | 150# To 2500#. |
| Standard | DIN, EN, ISO, JIS, NPT |
| Connection Types | Threaded/ Weld/ Flange/ Clamp End / End Bell |
Equivalent Grades:
| STANDARD | SS 316L |
| WERKSTOFF NR. | 1.4404 / 1.4435 |
| AFNOR | Z3CND17‐11‐02 / Z3CND18‐14‐03 |
| EN | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| UNS | S31603 |
| JIS | SUS 316L |
| BS | 316S11 / 316S13 |
| GOST | 03Ch17N14M3 / 03Ch17N14M2 |
Chemical Composition:
| C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| 0.035 max | 2 max | 1 max | 0.045 max | 0.03 max | 16 - 18 | 2 - 3 | 10 - 14 | 68.89 min |
Mechanical Properties:
| Density | Tensile Strength | Melting Point | Yield Strength (0.2%Offset) | Elongation |
| 8 g/cm3 | Psi – 75000 , MPa – 515 | 1399 °C (2550 °F) | Psi – 30000 , MPa – 205 | 35 % |
Applications:
Heat Exchangers
Condensers
Power Generation
Petrochemicals Industries
Gas Processing Equipments
Pharmaceutical Equipments
Chemical Industries
Sea Water Equipments
Pulp and Paper Industries