Alloy Steel Buttweld Fittings Manufacturers in India
FitTech Industries Pvt. Ltd. was established in 1985 and have 3 decades of experience in manufacturing Alloy Steel Buttweld 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.
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 Alloy Steel Buttweld Fittings, carbon steel pipe fittings and carbon 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 A234 Wp11 Pipe Fittings?
This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP- 79, MSS-SP—83, MSS-SP-95, and MSS-SP-97. These fittings are for use in pressure piping and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and MSS standards shall be furnished in according with Supplementary Requirement S58 of Specification A960/A960M
Alloy Steel Buttweld Fittings Heat Treatment
Heat Treatment Procedures – fittings, after forming at an elevated temperature below the critical range under suitable conditions to prevent injurious defects caused by too rapid cooling, but in no case more rapidly than the cooling rate in still air. Heat treatment temperature specified are metal (part) temperatures. Heat- treatment fittings shall be treated according to paragraph 7 in specification A960/A960M.
WPB, WPC, and WPR Fittings
Hot-formed WPB, WPC, and WPR fittings upon which the final forming operation is completed at a temperature above 1150 °F [620° C ] and below 1800 °F [980 °C] need not be heat treatment provided they are cooled in still air. 7.2.2 Hot-formed or forged WPB, WPC, and WPR fitting finished at temperature in excess of 1800 °F [980 °C] shall subsequently be annealed, normalised, or normalized and tempered. Hot-forged fittings NPS 4 or smaller need not be heat treated.
WPB, WPC, and WPR fittings over NPS 12, produced by locally heating a portion of the fitting stock to any temperature for forming, shall be subsequently annealed, normalized, or normalized and tempered. fittings such as elbows tees, header tees, reducers and lap joint stub ends with a carbon content less than 0.26%, NPS 12 and under, shall not require heat treatment after forming a locally heated portion of the fitting.
Fittings of Grades ASTM A234 WP1, WP11 Class 1, WP11 Class 2, WP11 Class 3, WP12 Class 1, WP12 Class 2, WP22 Class 1, WP22 Class 3, WP5, and WP9 shall be finished in the full-annealed, isothermal – annealed, or normalized and tempered condition. If normalized and tempered, the tempering temperature for WP11 Class 1, WP11 Class 2, WP11 Class3, WP12 Class 1, and WP12 Class 2 shall not be less than 1150 °F [620 °C] for Grades WP5, WP9, WP22 Class 1, and WP22 Class 3 the tempering temperature shall not be less than 1250 °F [675 °C]
A234 Wp11 Alloy Steel Buttweld Fittings Specifications
| Material | Size (mm) | SCH/ Class | Thickness | Specification | Manufacturing Method |
|---|---|---|---|---|---|
|
Alloy Steel Buttweld Fittings
|
15NB to 600NB
200NB to 1800NB |
SCH 40 to XXS
SCH 10, 20, 30, 40, 80 |
3.91 to 60mm
6.35 to 60mm |
A234 WP
A234 WP |
Seamless
Welded |
|
Grade Specification
|
Alloy Steel: ASTM/ASME A234/ SA234 |
|
ASTM A234 Wp11 Fittings Size
|
Seamless:from 1/2″ to 24″ |
| Welded:from 24″ to 96″ (or as customer requirements) |
|
|
ASTM A234 Wp11 Fittings Degree
|
22.5 deg, 30deg,45 deg,90 deg,180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D,4D,5D,6D,7D-40D. |
|
ASTM A234 Wp11 Fittings Thickness
|
SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXS |
|
Standard
|
ASME B16.9, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISO |
|
Alloy Steel Material
|
Alloy Steel (ASTM A234 WPB, A234WPC, A420 WPL6, etc) |
| Stainless steel (ASTM A403 WP304, 304L, 316, 316L, 321,etc) |
|
| Alloy steel (ASTM A234 WP12, WP11, WP22, WP5, WP9, WP91, etc) |
|
|
ASTM A234 Wp11 Fittings Type
|
Seamless / Welded / Fabricated |
|
ASTM A234 Wp11 Fittings Bending Radius
|
R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
|
ASTM A234 Wp11 Fittings Range
|
½” NB to 48″ NB in Sch 10s, 40s, 80s, 160s, XXS. From 1/2 to 30 (Seamless Pipe Fittings), Form16 to 100 (Seam Pipe Fittings) |
|
Dimensions
|
ANSI/ASME B16.9, B16.28, MSS-SP-43. |
|
Applicable Standards
|
1-ASME B 16.9 for large Bore 2-ASME B 16.11 for small Bore (socket welded) 3-ASME B 16.25 for butt weld ends 4-ASME B 16.28 for small radius elbow |
| Seamless/ Welded 100% Radiography Tested | |
| 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 A234/A234M-10
| Grade | Class | Construction | Mandatory Marking |
|---|---|---|---|
|
WPB
|
W (Welded construction)
S (Seamless construction) |
WPBW
WPB |
|
|
WPC
|
W (Welded construction)
S (Seamless construction) |
WPCW
WPC |
|
|
WP1
|
W (Welded construction)
S (Seamless construction) |
WP1W
WP1 |
|
|
WP12
|
CL1
CL2 |
W (Welded construction)
S (Seamless construction) |
WP12 CL1W
WP12 CL1 WP12 CL2W WP12 CL2 |
|
WP11
|
CL1
CL2 CL3 |
W (Welded construction)
S (Seamless construction) |
WP11 CL1W
WP11 CL1 WP11 CL2W WP11 CL2 WP11 CL3W WP11 CL3 |
|
WP22
|
CL1
CL3 |
W (Welded construction)
S (Seamless construction) |
WP22 CL1W
WP22 CL1 WP22 CL3W WP22 CL3 |
|
WP5
|
CL1
CL3 |
W (Welded construction)
S (Seamless construction) |
WP5 CL1W
WP5 CL1 WP5 CL3W WP5 CL3 |
|
WP9
|
CL1
CL3 |
W (Welded construction)
S (Seamless construction) |
WP9 CL1W
WP9 CL1 WP9 CL3W WP9 CL3 |
|
WPR
|
W (Welded construction)
S (Seamless construction) |
WPR W
WPR |
|
|
WP91
|
W (Welded construction)
S (Seamless construction) |
WP91W
WP91 |
SUPPLEMENTARY REQUIREMENTS
- S1. Alternative Heat Treatment – Grade WP91
- S2. Restricted Vanadium Content
- S3. Carbon Equivalent
Certificates & Approvals
