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ASTM A403 WP304L 36″ Long Radius Elbow | ASTM A403 WP316L 24″ Equal Tee SCH XXS | ASTM A403 WP321H 36″ SCH 160 Short Radius Bends | ASTM A403 WP347H 24″ Concentric Reducer SCH 80S | ASTM A403 WP316L Unequal Tee 24″ x 12″ SCH 160 | ASTM A403 WP304 Seamless Buttweld Fittings | ASTM A403 WP316L 100% X-Ray Welded Buttweld Fittings | ASTM A403 WP304/316 ANSI B16.9 Fittings | Seamless Reducing Tee, ASTM A403 WP Grade
Annealed/Pickled Finish | No.4 Finish | Shot Blast Finish | Electropolish | Heat Marking | Certification EN 10204 3.1
Seamless and ERW Buttweld ASTM A403 WP304L/316L Fittings in Size Range of 1/2″ upto 48″ SCH 10, SCH 40, SCH80, SCH 160, SCH XS, SCH XXS
“ASTM A403 is Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings“
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ASTM A403 WP304L, WP316L – Stainless Steel Buttweld Pipe Fittings Manufacturer, Exporter and Supplier
This specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. All fittings shall undergo heat-treatment. Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and titanium. Tension test shall be done on the fitting material to determine the tensile properties such as yield strength and tensile strength. Fittings supplied under this specification shall be examined visually for surface discontinuities, surface checks, and mechanical marks.
Wrought Austenitic ASTM A403 Stainless Steel Piping Fittings |
||||||||
Grade |
Composition, % |
|||||||
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
|
WP 304 |
0.08 |
2 |
0.045 |
0.03 |
1 |
8.0-11.0 |
18.0-20.0 |
– |
WP 304L |
0.035 |
2 |
0.045 |
0.03 |
1 |
8.0-13.0 |
18.0-20.0 |
– |
WP 316 |
0.08 |
2 |
0.045 |
0.03 |
1 |
10.0-14.0 |
16.0-18.0 |
2.00-3.00 |
WP 316L |
0.035 |
2 |
0.045 |
0.03 |
1 |
10.0-16.0 |
16.0-18.0 |
2.00-3.00 |
Tensile and Elongation Requirements |
WP304, WP316 |
WP304L, WP316L |
|
Yield Strength, min, ksi [MPa] |
30[205] |
25[170] |
|
Tensile Strength, min, ksi [MPa] |
75[515] |
70[485] |
|
Elongation (1) |
Longitudinal |
28 |
28 |
Transverse |
20 |
20 |
Type | Seamless / Welded / Fabricated |
Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
Range | ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS. |
Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
Seamless/ Welded 100% Radiography Tested
Products | Size | |
ASTM A403 WP Elbows – Long Radius | ASTM A403 WP Stub Ends |
Sizes 1/2″ – 48″ |
ASTM A403 WP Elbows – Short Radius | ASTM A403 WP Crosses | |
ASTM A403 WP Reducing Elbows | ASTM A403 WP Reducing Crosses | |
ASTM A403 WP 45° Elbows | ASTM A403 WP 180° LR Return Bends | |
ASTM A403 WP Tees | ASTM A403 WP 180° SR Return Bends | |
ASTM A403 WP Reducing Tees | ASTM A403 WP Pipe Bends / Piggable Bends | |
ASTM A403 WP Reducers | ASTM A403 WP Couplings | |
ASTM A403 WP Concentric Reducers | ASTM A403 WP Pipe Nipples | |
ASTM A403 WP Eccentric Reducers | ASTM A403 WP Forged/Plate Cut Rings | |
ASTM A403 WP 3D Elbow | ASTM A403 WP End Caps | |
ASTM A403 WP 5D Elbow | Stainless Steel Forged / Plate Circles |