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Supply of austenitic stainless steel pipe fittings in seamless and welded types, including large diameter fittings
ASTM A403 Austenitic Stainless Steel Pipe Fittings
ASTM A403 Stainless Steel Pipe Fittings cover wrought austenitic stainless steel fittings used for pressure piping applications. These fittings are manufactured from stainless steel bars, forgings, plates, or seamless and welded tubular products, and are processed through methods such as rolling, forging, pressing, machining, and bending. Heat treatment and chemical analysis are carried out to ensure the material meets the required composition and specification standards.
Advantages
ASTM A403 stainless steel pipe fittings provide reliable performance in piping systems. Welded fittings offer leak-tight joints and help optimize space utilization. The smooth internal surface allows better flow characteristics, reducing turbulence, pressure loss, and the risk of erosion or corrosion. The continuity between pipe and fitting also contributes to overall system strength and durability.
ASTM A403 Stainless Steel Pipe Fittings are available in both seamless and welded constructions, in accordance with standards such as ASME B16.9, ASTM A403, and ASTM A815 for duplex grades where applicable. Sizes typically range from ½” to 48”, with various wall thicknesses including higher schedules. Additional services such as polishing, heat treatment, machining, and surface finishing can be provided as per project requirements. All fittings are supplied with inspection and test certification to ensure compliance and quality.
ASTM A403 Stainless Steel Buttweld Pipe Fittings – Elbows, Tees, Reducers, Stub Ends & End Caps Supplier, WP304/304L/304H, WP316/316L/316H, WP321/321H, WP904L Fittings Manufacturer, ASME B16.9 / B16.28 SS Pipe Fittings Exporter in India.
Standard Specification for ASTM A403 Stainless Steel Pipe Fittings
| Specification |
ASTM A403 / ASME SA403 |
| Dimensions |
ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Size |
Seamless 1/2" - 10", Welded 1/2" - 48" |
| Type |
Seamless / Welded / Fabricated |
| Thickness |
Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Bending Radius |
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Pipe Fittings Forms |
Long Radius (LR) Elbow, Short Radius (SR) Elbow, 2D Elbow, 3D Elbow, 5D Elbow, 10D Elbow, Equal Cross, Unequal Crosses, Reducing Nipple, Butt Tee Fittings, Bend, Swedge Nipple, Pipe Nipple, Reducers, Caps, Stub End, Pipe / Piggable Bend, Elbow, 45 and 90° elbows, 180° bends, lap-joint stub ends |
| Grades |
202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
EN-standard Steel no. k.h.s DIN |
EN-standard Steel name |
SAE grade |
UNS |
| 1.4109 |
X65CrMo14 |
440A |
S44002 |
| 1.4112 |
X90CrMoV18 |
440B |
S44003 |
| 1.4125 |
X105CrMo17 |
440C |
S44004 |
|
|
440F |
S44020 |
| 1.4016 |
X6Cr17 |
430 |
S43000 |
| 1.4408 |
G-X 6 CrNiMo 18-10 |
316 |
S31600 |
| 1.4512 |
X6CrTi12 |
409 |
S40900 |
|
|
410 |
S41000 |
| 1.4310 |
X10CrNi18-8 |
301 |
S30100 |
| 1.4318 |
X2CrNiN18-7 |
301LN |
|
| 1.4307 |
X2CrNi18-9 |
304L |
S3043 |
| 1.4306 |
X2CrNi19-11 |
304L |
S30403 |
| 1.4311 |
X2CrNiN18-10 |
304LN |
S30453 |
| 1.4301 |
X5CrNi18-10 |
304 |
S30400 |
| 1.4948 |
X6CrNi18-11 |
304H |
S30409 |
| 1.4303 |
X5CrNi18-12 |
305 |
S30500 |
|
X5CrNi30-9 |
312 |
|
| 1.4841 |
X22CrNi2520 |
310 |
S31000 |
| 1.4845 |
X 5 CrNi 2520 |
310S |
S31008 |
| 1.4541 |
X6CrNiTi18-10 |
321 |
S32100 |
| 1.4878 |
X12CrNiTi18-9 |
321H |
S32109 |
| 1.4404 |
X2CrNiMo17-12-2 |
316L |
S31603 |
| 1.4401 |
X5CrNiMo17-12-2 |
316 |
S31600 |
| 1.4406 |
X2CrNiMoN17-12-2 |
316LN |
S31653 |
| 1.4432 |
X2CrNiMo17-12-3 |
316L |
S31603 |
| 1.4435 |
X2CrNiMo18-14-3 |
316L |
S31603 |
| 1.4436 |
X3CrNiMo17-13-3 |
316 |
S31600 |
| 1.4571 |
X6CrNiMoTi17-12-2 |
316Ti |
S31635 |
| 1.4429 |
X2CrNiMoN17-13-3 |
316LN |
S31653 |
| 1.4438 |
X2CrNiMo18-15-4 |
317L |
S31703 |
| 1.4362 |
X2CrNi23-4 |
2304 |
S32304 |
| 1.4462 |
X2CrNiMoN22-5-3 |
2205 |
S31803/S32205 |
| 1.4501 |
X2CrNiMoCuWN25-7-4 |
J405 |
S32760 |
| 1.4539 |
X1NiCrMoCu25-20-5 |
904L |
N08904 |
| 1.4529 |
X1NiCrMoCuN25-20-7 |
|
N08926 |
| 1.4547 |
X1CrNiMoCuN20-18-7 |
254SMO |
S31254 |
| Grade |
UNS No. |
EN No. |
C |
Cr |
Ni |
Mo |
Others |
| 304 |
S30400 |
1.4301 |
0.08 |
18.00- 20.00 |
8.00- 12.00 |
- |
- |
| 304L |
S30403 |
1.4307 |
0.035 |
18.00- 20.00 |
8.00- 12.00 |
- |
- |
| 310S |
S31008 |
1.4845 |
0.08 |
24.00- 26.00 |
19.00- 22.00 |
- |
- |
| 316 |
S31620 |
1.4401 |
0.08 |
16.00- 18.00 |
10.00- 14.00 |
2.00- 3.00 |
- |
| 316L |
S31603 |
1.4404 |
0.035 |
16.00- 18.00 |
10.00- 14.00 |
2.00- 3.00 |
- |
| 316H |
S31603 |
- |
0.04- 0.10 |
16.00- 18.00 |
10.00- 14.00 |
2.00- 3.00 |
- |
| 316Ti |
S31635 |
1.4571 |
0.08 |
16.00- 18.00 |
10.00- 14.00 |
2.00- 3.00 |
Ti:5X(C+N)- 0.70 |
| 317L |
S31703 |
1.4438 |
0.035 |
18.00 - 20.00 |
11.00- 15.00 |
3.00 - 4.00 |
- |
| 321 |
S32100 |
1.4541 |
0.08 |
17.00 - 19.00 |
9.00 - 12.00 |
- |
Ti:5X(C+N)- 0.70 |
| 347 |
S34700 |
1.4550 |
0.08 |
16.00 - 18.00 |
10.00 - 14.00 |
- |
- |
| 347H |
S34709 |
1.4551 |
0.04 - 0.10 |
17.00 - 20.00 |
9.00- 13.00 |
- |
- |
| 904L |
S8904 |
1.4539 |
0.02 |
19.00- 23.00 |
23.00 - 28.00 |
- |
N:0.10 max
Cu : 1.0 - 2.0 |
| Element |
Value |
| Tensile Strength |
600 |
| Yield Strength |
250 |
Stainless Steel Pipe Fittings Application
ASTM A403 stainless steel buttweld pipe fittings are widely used in piping systems where strength, corrosion resistance, and long-term reliability are required. Manufactured as per international standards, these fittings are suitable for a variety of service conditions, including high pressure and temperature environments. They are commonly used across multiple industries for fluid handling and process piping applications. Typical application areas include:
- ASTM A403 Stainless Steel Pipe Fittings uses in Power Plants
- ASTM A403 Stainless Steel Pipe Fittings uses in Modern Architecture
- ASTM A403 Stainless Steel Pipe Fittings uses in Petroleum Industry
- ASTM A403 Steel Pipe Fittings uses in General Purpose Applications
- ASTM A403 Stainless Steel Pipe Fittings uses in Fabrication Industry
- ASTM A403 Stainless Steel Pipe Fittings uses in Oil & Gas Industry
- ASTM A403 Stainless Steel Pipe Fittings uses in Fertilizers
- ASTM A403 Stainless Steel Pipe Fittings uses in Electronics
- ASTM A403 Stainless Steel Pipe Fittings uses in Construction
- ASTM A403 Stainless Steel Pipe Fittings uses in Chemical Industries
- ASTM A403 Stainless Steel Pipe Fittings uses in Plumbing
Stainless Steel ANSI B16.9, ASME B16.28 Fittings Price List
Export Destinations For Stainless Steel Pipe Fittings
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