SS 316L Buttweld Fittings manufacturers in India

FitTech Industries Pvt. Ltd. was established in 1985 and have 3 decades of experience in manufacturing pipe fittings and flanges in accordance to ASME B16.9/ B16.11 with commitment to provide world class quality to our customers at competitive price by using innovative production system and process.
FitTech has one of the most extensive inventories of stainless steel pipe fittings, A403 WP316L Stainless Steel Tee, A403 WP316L Stainless Steel Stub Ends, A403 WP316L Stainless Steel Double Flanged Fittings, A403 WP316L Stainless Steel Fittings Exporter in India, A403 WP316L Stainless Steel Fabricated Fittings, Threaded Stainless Steel Fittings, NPT Fittings, SS 316L Fittings, SS 316L Pipe Fittings, SS 316L Buttweld Fittings, 316L Stainless Steel U Bends, 316L Stainless Steel Reducers, 316L Stainless Steel 5D/3D Elbow, 316L Stainless Steel Tube Fittings, Cold Formed Butt-weld Fittings, A403 316L Stainless Steel Extruded Outlets, A403 316L Stainless Steel Manifolds in a variety of sizes and pressure ratings.
Our factory is located at Village Poman, Taluka Vasai, District Thane, Maharashtra, India. It is easily accessible through NH No.8 and 35 K.M. from International & Domestic airports. We have invested 3 million dollars (20 Million Rupees) to upgrade our factory making it of world level with high grade sophisticated production equipments producing all grades of Pipe Fittings , Butt Welded Fittings, Flanges with atomization and electric panel control with green technology.
We procure quality raw materials from reputed manufacturers in India & Europe to manufacture A403 316L Stainless Steel pipe fittings and A403 316L Stainless Steel flanges according to ASME, EN, ISO and DIN standards. Now FitTech has emerged with high volume of quality production at reduced time with competitive price focusing totally on customer satisfaction with high class quality with committed early delivery at competitive price.
What is ASTM A403 WP316L Stainless Steel Pipe Fittings?


A403 316L Stainless Steel covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of stainless steel forgings, stainless steel bars, stainless steel plates, or seamless or welded stainless steel tubular products. Stainless Steel 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 ASTM A403 WP316L Stainless Steel Pipe 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.
ASTM A403 WP316L Stainless Steel Pipe Fittings Specifications

|
A403 316L Stainless Steel Pipe Fittings Specification
|
||||
|---|---|---|---|---|
|
A403 316L Stainless Steel Buttweld (B/W) Fittings Material
|
Size
(in mm) |
Sch. & Swg.
|
SS Fittings Specification
|
SS Pipe Fittings Items
|
|
A403 316L Stainless Steel Seamless Fittings
|
15 NB
to 300 NB |
Sch. 5
to Sch. XXs |
A-403 B/W
ANSI B16.9 |
A403 WP316L Bend (Long & Short)
R=2D,3D,5D,10D Etc A403 WP316L Elbow ( 180o, 90o & 45o) A403 WP316L Tee (Equal & Unequal) A403 WP316L Reducer (Con & Ecc) CAP A403 WP316L Stubend (Long & Short) A403 WP316L Nipple (Barrel) |
|
A403 316L Stainless Steel Welded [ERW] Fittings
|
15 NB
to 600 NB |
Sch. 5
to Sch. 80s |
A-403 B/W
ANSI B16.9 |
|
Grade specifications for 316 grade stainless steels:
| GRADE | UNS NO |
OLD BRITISH | EURONORM | SWEDISH SS |
JAPANESE JIS |
||
|---|---|---|---|---|---|---|---|
| BS | EN | NO | NAME | ||||
| 316 | S31600 | 316S31 | 58H, 58J | 1.4401 | X5CrNiMo17-12-2 | 2347 | SUS 316 |
| 316L | S31603 | 316S11 | – | 1.4404 | X2CrNiMo17-12-2 | 2348 | SUS 316L |
| 316H | S31609 | 316S51 | – | – | – | – | – |
Note: These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
Typical physical properties for 316 grade stainless steels:
| GRADE | DENSITY (KG/M3) |
ELASTIC MODULUS (GPA) |
MEAN CO-EFF OF THERMAL EXPANSION (ΜM/M/°C) | THERMAL CONDUCTIVITY (W/M.K) |
SPECIFIC HEAT 0-100°C (J/KG.K) |
ELEC RESISTIVITY (NΩ.M) |
|||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | AT 100°C | AT 500°C | |||||
| 316/L/H | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
| Note:- | |||||
|---|---|---|---|---|---|
| Material | AISI 304, AISI 304L, AISI 304H, AISI 316, AISI 316L, AISI 316LN, AISI 316Ti, AISI 309, AISI 317, AISI 317L, ASTM A403 310S, AISI 321, AISI 321H, AISI 347, AISI 347H, AISI 410, AISI 420, AISI 446, AISI 202 DIN 1.4301/7, DIN 1.4401/4, DIN 1.4541, DIN 1.4571 |
||||
| Value Added Service | Polish (Electro & Commercial) Heat Treatment Annealed & Pickled, Sand Blasting Machining Etc. |
||||
| Standard | ASTM, ASME | ||||
| End Connection | Butt Weld | ||||
| Type | Straight, Seamless / Welded / Fabricated Stainless Fittings | ||||
| Designation | A 403 Pipe Fittings, SA 403 Fittings | ||||
| Dimension Standard | Manufacturing as per ASME/ANSI B16.9, ASME B16.25, ASME B16.28, ASME B16.49, MSS-SP-43 Fittings | ||||
| Thickness | Sch 5s Fittings, Sch 10s Fittings, Sch 40s Fittings, Sch 80s Fittings, Sch 160s Fittings, Sch XXS Fittings manufacturers in India |
||||
| Size | 1/2 Inch to 48 Inch | ||||
| Two Joint / Two Halve 304 Butt weld Fittings Size | 6″ to 48″ | ||||
| Producing A403 316L Stainless Steel Pipe Fittings in form of : |
|
||||
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Pipe Bend | ||||
| Manufacturing Specification: | ASME: ANSI B16.9, ANSI B16.28, ASME B16.25, MSS-SP-43, DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011, EN: EN10253-1, EN10253-2 | ||||
| Procure Raw Materials from | Japanese Mills, European Mills, US Mills, Korean Mills | ||||
| Other Form | A403 316L Stainless Steel Dairy Fitting | ||||
| Test Certificate |
With Manufacturer Test Certificate Under Third Party Inspection |
||||
| Specialize | Long Bend with Radius – R = 3D, 5D & 10D Pigabble Bend & As per your drawing Minimum Wall Thinning rate & Ovality, No WrinklesLong radius Bend, Piggable Bend, Hot bend, With R=3D, 5D, 6D, 8D, 10D & Customized Bend |
||||
|
Seamless/ Welded Pipe Fittings 100% Radiography Tested
Stainless Steel Forged Fittings Manufacturer in India, ANSI B16.11 Socket Weld and Threaded Fittings Suppliers |
|||||
|
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report as per client specification.
|
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Stainless Steel Pipe/Tube Fittings Manufacturing Standards
316L Stainless Steel Pipe Fittings and Flanges Specifications
| Grade | Specification |
|---|---|
| Stainless 304/304L, 304/304H | A/SA403, A/SA182 |
| Stainless 316/316L, 316/316H | A/SA403, A/SA182 |
| Stainless 317/317L | A/SA403, A/SA182 |
| Stainless 321/321H | A/SA403, A/SA182 |
| Stainless 347/347H | A/SA403, A/SA182 |
| Standard | Description |
|---|---|
| ASTM A182/A182M | Forged or rolled alloy steel pipe flanges, forged fittings and valves and parts for high temperature service. Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
| ASTM A403/A403M | Wrought austenitic stainless steel piping fittings. |
| ASTM A815/A815M | Wrought ferritic, ferritic/austenitic and martensitic stainless steel piping fittings. |
| AS 2129 | Flanges for pipes, valves and fittings |
| ANSI/ASME B1.20.1 | Pipe threads, general purpose (inch). |
| ANSI B16.5 | Steel pipe flanges and flanged fittings. |
| ANSI B16.9 | Factory-made wrought steel butt-welding fittings. |
| ANSI B16.11 | Forged steel fittings socket-welding and threaded. Socket Welding and Threaded Forged Fittings |
| ANSI B16.25 | Butt-welding ends. |
| MSS SP43 | Wrought stainless steel butt-welding fittings. Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| BS21 | Threading. |
| ISO 4144 | Stainless steel fittings threaded to ISO 7-1. |
| MSS SP-95 | Swage(d) Nipples and Bull Plugs |
| BS3799 | Specification for Steel pipe fittings, screwed and Socket-welding for the petroleum industry |
| ANSI – B 16.9 ASTM A403 – ASME SA403 |
‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’ |
| API 590-605 ASME B16.9 |
‘Factory-Made Wrought Buttwelding Fittings’ |
| ASME B16.25 | ‘Buttwelding Ends’ |
| ASME B16.28 | ‘Wrought Steel Buttwelding Short Radius Elbows and Returns’ |
ASTM A403 WP316L Stainless Steel Pipe Fittings Types

|
A403 316L Stainless Steel Tee manufacturers in India Steel tees are available within the range of DN 15 – DN 600. They are produced according to the following standards:
We can provide both A403 316L Stainless Steel equal and A403 316L Stainless Steel reducing tees.
|
What is A234 WPB Pipe Fittings?
A403 316L Stainless Steel Reducers
A403 316L Stainless Steel Reducers manufacturers in India 316L stainless steel reducers are made of 316L Stainless Steel seamless tube within the range of DN 15 – DN 1000. We can provide both A403 316L Stainless Steel concentric and A403 316L Stainless Steel eccentric reducers. Steel reducers are produced according to the following standard: DIN 2616-2, steel grades St. 37.0, St. 35.8, St. 45.8
|
What is A234 WPB Pipe Fittings?
A403 316L Stainless Steel Pipe Cap/ End Cap
A403 316L Stainless Steel Pipe Cap/ End Cap manufacturers in India Steel heads/ Pipe Cap are available within the range of DN 15 – DN 500. They are produced according to the following standards:
|
316L Seamless buttwelding fittings – ASTM A403M* & ASME B16.9

A403 WP316L Pipe Fittings: elbow dimensions, ASTM A403 fitting dimensions, Stainless steel pipe fittings dimensions, Stainless steel pipe fittings weight chart


Important Information for ASTM A403 WP316L Stainless Steel Pipe Fittings buyers

ASTM A403 WP316L Stainless Steel Elbows and Returns
| Nominal Pipe Size |
Outside Diameter |
90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
|
(inches)
|
Long Radius
|
Short Radius
|
Long Radius
|
Long Radius
|
||||
|
(mm)
|
(inches)
|
Center to Face
(inches) |
Center to Face
(inches) |
Center to Face
(inches) |
Radius
(inches) |
Center to Center
(inches) |
Back to face
(inches) |
|
|
1/2
|
21.3
|
0.840
|
1 1/2
|
–
|
5/8
|
2
|
1 7/8
|
|
|
3/4
|
26.7
|
1.050
|
1 1/8
|
–
|
7/16
|
2 1/4
|
1 11/16
|
|
|
1
|
33.4
|
1.315
|
1 1/2
|
1
|
7/8
|
3
|
2 3/16
|
|
|
1 1/4
|
42.2
|
1.660
|
1 7/8
|
1 1/4
|
1
|
3 3/4
|
2 3/4
|
|
|
1 1/2
|
48.3
|
1.900
|
2 1/4
|
1 1/2
|
1 1/8
|
3
|
4 1/2
|
3 1/4
|
|
2
|
60.3
|
2.375
|
3
|
2
|
1 3/8
|
4
|
6
|
4 3/16
|
|
2 1/2
|
73.0
|
2.875
|
3 3/4
|
2 1/2
|
1 3/4
|
5
|
7 1/2
|
5 3/16
|
|
3
|
88.9
|
3.500
|
4 1/2
|
3
|
2
|
6
|
9
|
6 1/4
|
|
3 1/2
|
101.6
|
4.000
|
5 1/4
|
3 1/2
|
2 1/4
|
7
|
10 1/2
|
7 1/4
|
|
4
|
114.3
|
4.500
|
6
|
4
|
2 1/2
|
8
|
12
|
8 1/4
|
|
5
|
141.3
|
5.563
|
7 1/2
|
5
|
3 1/8
|
10
|
15
|
10 5/16
|
|
6
|
168.3
|
6.625
|
9
|
6
|
3 3/4
|
12
|
18
|
12 5/16
|
|
8
|
219.1
|
8.625
|
12
|
8
|
5
|
12
|
24
|
16 5/16
|
|
10
|
273.1
|
10.750
|
15
|
10
|
6 1/4
|
15
|
30
|
20 3/8
|
|
12
|
323.9
|
12.750
|
18
|
12
|
7 1/2
|
18
|
36
|
24 3/8
|
ASTM A403 WP316L Stainless Steel Tees, Caps, Stub Ends and Straight Crosses
| Nominal Pipe Size |
Outside Diameter |
Caps | Straight Tees | Straight Crosses | Stub Ends | |||
|---|---|---|---|---|---|---|---|---|
|
(inches)
|
(mm)
|
(inches)
|
Length
(inches) |
Center to End
(inches) |
Center to End
(inches) |
Lap Diameter
(inches) |
Long Length
(inches) |
Short Length
(inches) |
|
1/2
|
21.3
|
0.840
|
1
|
1
|
–
|
1 3/8
|
3
|
2
|
|
3/4
|
26.7
|
1.050
|
1
|
1 1/8
|
–
|
1 11/16
|
3
|
2
|
|
1
|
33.4
|
1.315
|
1 1/2
|
1 1/2
|
1 1/2
|
2
|
4
|
2
|
|
1 1/4
|
42.2
|
1.660
|
1 1/2
|
1 7/8
|
1 7/8
|
2 1/2
|
4
|
2
|
|
1 1/2
|
48.3
|
1.900
|
1 1/2
|
2 1/4
|
2 1/4
|
2 7/8
|
4
|
2
|
|
2
|
60.3
|
2.375
|
1 1/2
|
2 1/2
|
2 1/2
|
3 5/8
|
6
|
2 1/2
|
|
2 1/2
|
73.0
|
2.875
|
1 1/2
|
3
|
3
|
4 1/8
|
6
|
2 1/2
|
|
3
|
88.9
|
3.500
|
2
|
3 3/8
|
3 3/8
|
5
|
6
|
2 1/2
|
|
3 1/2
|
101.6
|
4.000
|
2 1/2
|
3 3/4
|
3 3/4
|
5 1/2
|
6
|
3
|
|
4
|
114.3
|
4.500
|
2 1/2
|
4 1/8
|
4 1/8
|
6 3/16
|
6
|
3
|
|
5
|
141.3
|
5.563
|
3
|
4 7/8
|
4 7/8
|
7 5/16
|
8
|
3
|
|
6
|
168.3
|
6.625
|
3 1/2
|
5 5/8
|
5 5/8
|
8 1/2
|
8
|
3 1/2
|
|
8
|
219.1
|
8.625
|
4
|
7
|
7
|
10 5/8
|
8
|
4
|
|
10
|
273.1
|
10.750
|
5
|
8 1/2
|
8 1/2
|
12 3/4
|
10
|
5
|
|
12
|
323.9
|
12.750
|
6
|
10
|
10
|
15
|
10
|
6
|
ASTM A403 WP316L Stainless Steel Reducers
| Nominal Pipe Size |
Outside Diameter |
Reducers | ||
|---|---|---|---|---|
|
Reduced from
(inches) |
(mm)
|
(inches)
|
Reduced to
(inches) |
Concentric & Eccentric Length
(inches) |
|
1/2
|
21.3
|
0.840
|
1/4
|
1 1/2
|
|
3/8
|
1 1/2
|
|||
|
3/4
|
26.7
|
1.050
|
3/8
|
2
|
|
1/2
|
2
|
|||
|
1
|
33.4
|
1.315
|
3/8
|
2
|
|
1/2
|
2
|
|||
|
3/4
|
2
|
|||
|
1 1/4
|
42.2
|
1.660
|
1/2
|
2
|
|
3/4
|
2
|
|||
|
1
|
2
|
|||
|
1 1/2
|
48.3
|
1.900
|
1/2
|
2 1/2
|
|
3/4
|
2 1/2
|
|||
|
1
|
2 1/2
|
|||
|
1 1/4
|
2 1/2
|
|||
|
2
|
60.3
|
2.375
|
3/4
|
3
|
|
1
|
3
|
|||
|
1 1/4
|
3
|
|||
|
1 1/2
|
3
|
|||
|
2 1/2
|
73.0
|
2.875
|
1
|
3 1/2
|
|
1 1/4
|
3 1/2
|
|||
|
1 1/2
|
3 1/2
|
|||
|
2
|
3 1/2
|
|||
|
3
|
88.9
|
3.500
|
1
|
3 1/2
|
|
1 1/2
|
3 1/2
|
|||
|
2
|
3 1/2
|
|||
|
2 1/2
|
3 1/2
|
|||
|
3 1/2
|
101.6
|
4.000
|
1 1/4
|
4
|
|
1 1/2
|
4
|
|||
|
2
|
4
|
|||
|
2 1/2
|
4
|
|||
|
3
|
4
|
|||
|
4
|
114.3
|
4.500
|
1 1/2
|
4
|
|
2
|
4
|
|||
|
2 1/2
|
4
|
|||
|
3
|
4
|
|||
|
3 1/2
|
4
|
|||
|
5
|
141.3
|
5.563
|
2
|
5
|
|
2 1/2
|
5
|
|||
|
3
|
5
|
|||
|
3 1/2
|
5
|
|||
|
4
|
5
|
|||
|
6
|
168.3
|
6.625
|
2 1/2
|
5 1/2
|
|
3
|
5 1/2
|
|||
|
3 1/2
|
5 1/2
|
|||
|
4
|
5 1/2
|
|||
|
5
|
5 1/2
|
|||
|
8
|
219.1
|
8.625
|
3
|
6
|
|
3 1/2
|
6
|
|||
|
4
|
6
|
|||
|
5
|
6
|
|||
|
6
|
6
|
|||
|
10
|
273.1
|
10.750
|
4
|
7
|
|
5
|
7
|
|||
|
6
|
7
|
|||
|
8
|
7
|
|||
|
12
|
323.9
|
12.750
|
5
|
8
|
|
6
|
8
|
|||
|
8
|
8
|
|||
|
10
|
8
|
|||
ASTM A403 WP316L Stainless Steel Pipe Fittings Chemical Composition

| GRADE | C | MN | SI | P | S | CR | MO | NI | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 316 | Min | – | – | – | 0 | – | 16.0 | 2.00 | 10.0 | – |
| Max | 0.08 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
| 316L | Min | – | – | – | – | – | 16.0 | 2.00 | 10.0 | – |
| Max | 0.03 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
| 316H | Min | 0.04 | 0.04 | 0 | – | – | 16.0 | 2.00 | 10.0 | – |
| max | 0.10 | 0.10 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | – |
ASTM A403 WP316L Stainless Steel Pipe Fittings Mechanical Properties

| GRADE | TENSILE STR (MPA) MIN |
YIELD STR 0.2% PROOF (MPA) MIN |
ELONG (% IN 50MM) MIN |
HARDNESS | |
|---|---|---|---|---|---|
| ROCKWELL B (HR B) MAX | BRINELL (HB) MAX | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
| 316H | 515 | 205 | 40 | 95 | 217 |
Certificates & Approvals





