OEM manufacturer ASME B16.11 · MSS SP-79 · MSS SP-83 · ASTM A105 · ASTM A182
Socket Weld Fittings Manufacturer in India — ASME B16.11
Teshi Group is an OEM manufacturer of forged socket weld fittings for small-bore, high-pressure lines: 90° and 45° elbows, tees, crosses, full and half couplings, unions and caps. Fittings are machined from ASTM A105, A182 F304/F316 and F11/F22 forgings in Class 3000, 6000 and 9000, with socket bore and depth checked against ASME B16.11 on every lot.
Socket bore and depth are checked against ASME B16.11 on every lot.
Size rangeNPS ⅛"–4"
Material familiesCS / SS / Alloy
Governing standardsASME B16.11
Socket Weld Fittings — specifications & size ranges
| Type | Standard | Size range | Pressure class | Material grades |
|---|---|---|---|---|
| Elbow 90° / 45° | ASME B16.11 | ⅛"–4" | 3000# / 6000# / 9000# | Carbon steel A105, A181, A694 F42–F70; LTCS A350 LF1, LF2, LF3, LF6; alloy A182 F1, F5, F9, F11, F12, F22, F91, F92; stainless F304/L/H, F310, F316/L/H/Ti, F317L, F321/H, F347/H; 904L, 254 SMO (F44); duplex F51, F60; super duplex F53, F55, F61; Monel 400/K-500, Inconel 600/625/718, Incoloy 800/825, Hastelloy C276/C22/B2, Alloy 20; titanium Gr 1/2/5/7/12; Cu-Ni 90/10, 70/30 |
| Equal Tee / Cross | ASME B16.11 | ⅛"–4" | 3000# / 6000# | Carbon steel A105, A181, A694 F42–F70; LTCS A350 LF1, LF2, LF3, LF6; alloy A182 F1, F5, F9, F11, F12, F22, F91, F92; stainless F304/L/H, F310, F316/L/H/Ti, F317L, F321/H, F347/H; 904L, 254 SMO (F44); duplex F51, F60; super duplex F53, F55, F61; Monel 400/K-500, Inconel 600/625/718, Incoloy 800/825, Hastelloy C276/C22/B2, Alloy 20; titanium Gr 1/2/5/7/12; Cu-Ni 90/10, 70/30 |
| Full / Half Coupling | ASME B16.11 | ⅛"–4" | 3000# / 6000# / 9000# | Carbon steel A105, A181, A694 F42–F70; LTCS A350 LF1, LF2, LF3, LF6; alloy A182 F1, F5, F9, F11, F12, F22, F91, F92; stainless F304/L/H, F310, F316/L/H/Ti, F317L, F321/H, F347/H; 904L, 254 SMO (F44); duplex F51, F60; super duplex F53, F55, F61; Monel 400/K-500, Inconel 600/625/718, Incoloy 800/825, Hastelloy C276/C22/B2, Alloy 20; titanium Gr 1/2/5/7/12; Cu-Ni 90/10, 70/30 |
| Union | MSS SP-83 | ⅛"–3" | 3000# / 6000# | Carbon steel A105, A181, A694 F42–F70; LTCS A350 LF1, LF2, LF3, LF6; alloy A182 F1, F5, F9, F11, F12, F22, F91, F92; stainless F304/L/H, F310, F316/L/H/Ti, F317L, F321/H, F347/H; 904L, 254 SMO (F44); duplex F51, F60; super duplex F53, F55, F61; Monel 400/K-500, Inconel 600/625/718, Incoloy 800/825, Hastelloy C276/C22/B2, Alloy 20; titanium Gr 1/2/5/7/12; Cu-Ni 90/10, 70/30 |
| Cap | ASME B16.11 | ⅛"–4" | 3000# / 6000# | Carbon steel A105, A181, A694 F42–F70; LTCS A350 LF1, LF2, LF3, LF6; alloy A182 F1, F5, F9, F11, F12, F22, F91, F92; stainless F304/L/H, F310, F316/L/H/Ti, F317L, F321/H, F347/H; 904L, 254 SMO (F44); duplex F51, F60; super duplex F53, F55, F61; Monel 400/K-500, Inconel 600/625/718, Incoloy 800/825, Hastelloy C276/C22/B2, Alloy 20; titanium Gr 1/2/5/7/12; Cu-Ni 90/10, 70/30 |
Socket Weld Fittings types
9 productsOEM manufacturer
Socket Weld Elbow
ASME B16.11
View productOEM manufacturerSocket Weld Tee
ASME B16.11
View productOEM manufacturerSocket Weld Cross
ASME B16.11
View productOEM manufacturerSocket Weld Coupling
ASME B16.11
View productOEM manufacturerSocket Weld Reducing Coupling
ASME B16.11
View productOEM manufacturerSocket Weld Reducer Insert
MSS SP-79 · ASME B16.11
View productOEM manufacturerSocket Weld Union
MSS SP-83 · ASME B16.11
View productOEM manufacturerSocket Weld Cap
ASME B16.11
View productOEM manufacturerWeldolet, Sockolet & Threadolet
MSS SP-97 · ASME B16.11
View productTechnical data sheets
Dimensional standards
ASME B16.11 socket weld fitting dimensionsASME B16.11 · view online · download PDFPipe schedule chart — ASME B36.10MASME B36.10M · view online · download PDFMSS SP-97 Weldolet dimensionsMSS SP-97 · view online · download PDFMSS SP-83 Union dimensionsMSS SP-83 · view online · download PDFASME B16.11 Socket Weld Fitting Weight Chart (kg)ASME B16.11 · view online · download PDF
Material grades
All gradesASTM A105ASTM A350 LF2 Cl.1ASTM A182 F304ASTM A182 F316ASTM A182 F11 Cl.2ASTM A182 F22 Cl.3ASTM A182 F304LASTM A182 F316LASTM A182 F321ASTM A182 F91ASTM A182 F51UNS N08904 (904L)ASTM A182 F304HASTM A182 F316HASTM A182 F316TiASTM A182 F317LASTM A182 F310ASTM A182 F321HASTM A182 F347ASTM A182 F347HASTM A182 F44 (254 SMO)ASTM A182 F62 (Alloy 6XN)ASTM B462 Alloy 20 (UNS N08020)ASTM A182 F60 (Duplex 2205)ASTM A182 F61 (Alloy 255)ASTM A182 F53 (Super Duplex 2507)ASTM A182 F55 (Super Duplex S32760)Alloy 625 (UNS N06625)Alloy 600 (UNS N06600)Alloy 825 (UNS N08825)Alloy 800 / 800H / 800HTAlloy C-276 (UNS N10276)Alloy C-22 (UNS N06022)Alloy 400 (UNS N04400)Nickel 200 / 201 (UNS N02200 / N02201)Titanium Grade 2 (UNS R50400)Titanium Grade 5 (Ti-6Al-4V)Titanium Grade 7 (UNS R52400)Titanium Grade 12 (UNS R53400)ASTM A350 LF3 Cl.1ASTM A694 F52ASTM A694 F60ASTM A694 F65ASTM A694 F70ASTM A182 F5ASTM A182 F9ASTM A182 F12 Cl.2ASTM A182 F1ASTM A182 F2ASTM A182 F5aASTM A182 F11 Cl.1ASTM A182 F11 Cl.3ASTM A182 F12 Cl.1ASTM A182 F21ASTM A182 F22 Cl.1ASTM A182 F92
Complete material range
- Carbon steel
- ASTM A105 / A105N; ASTM A181 Cl 60, Cl 70; ASTM A266 Gr 2, Gr 4 (large forgings)
- High-yield carbon steel
- ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70 (MSS SP-44 grades F52–F70)
- Low-temperature carbon steel
- ASTM A350 LF1, LF2 Cl 1, LF2 Cl 2, LF3, LF6, LF9
- Alloy steel (Cr-Mo)
- ASTM A182 F1, F2, F5, F5a, F9, F11 Cl 1 / 2 / 3, F12 Cl 1 / 2, F21, F22 Cl 1 / 3, F22V, F91, F92, F911; ASTM A336 F11, F22 (large forgings)
- Stainless steel
- ASTM A182 F304, F304L, F304H, F304LN, F309H, F310, F316, F316L, F316H, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348
- 904L and 6Mo
- 904L (ASTM A182 F904L, UNS N08904); 254 SMO / 6Mo (ASTM A182 F44, UNS S31254); AL-6XN (ASTM A182 F62, UNS N08367)
- Duplex stainless steel
- ASTM A182 F51 (UNS S31803), F60 (UNS S32205, 2205)
- Super duplex stainless steel
- ASTM A182 F53 (UNS S32750, 2507), F55 (UNS S32760), F61 (UNS S32550)
- Nickel alloys
- ASTM B564 / B160 / B462: Nickel 200 / 201 (N02200 / N02201), Monel 400 (N04400), Monel K-500 (N05500), Inconel 600 (N06600), Inconel 625 (N06625), Inconel 718 (N07718), Incoloy 800 / 800H / 800HT (N08800 / N08810 / N08811), Incoloy 825 (N08825), Hastelloy C276 (N10276), Hastelloy C22 (N06022), Hastelloy B2 / B3 (N10665 / N10675), Alloy 20 (N08020)
- Titanium
- ASTM B381 Grade F1, F2, F5 (Ti-6Al-4V), F7, F12
- Copper-nickel
- Cu-Ni 90/10 (UNS C70600) and 70/30 (UNS C71500), ASTM B151 bar; flanges to ASME B16.5 or EEMUA 145
ASME B16.11 pressure class and matching pipe schedule
Forged fitting class is chosen to match the wall thickness of the pipe it joins.
| Class | Socket weld — matching pipe | Threaded — matching pipe | Size range |
|---|---|---|---|
| 2000 | — | Sch 80 / XS | ⅛"–4" |
| 3000 | Sch 80 / XS | Sch 160 | ⅛"–4" |
| 6000 | Sch 160 | XXS | ⅛"–4" |
| 9000 | XXS | — | ½"–2" |
Per ASME B16.11 Table 1. Fittings may be used with other schedules; the governing standard and piping code take precedence.
Documentation
What you receive with every order
- Hard-stamped heat number
- EN 10204 3.1 mill test certificate
- Dimensional inspection report against the governing standard
- Packing list with heat numbers
- Third-party inspection on request
- Seaworthy wooden cases for export orders
Forged fittings by material
SS 304 / 304L pipe fittingsSS 316 / 316L pipe fittingsASTM A234 WPB Carbon Steel pipe fittingsASTM A420 WPL6 / WPL3 Low-Temperature pipe fittingsAlloy Steel WP11 / WP22 / WP91 pipe fittingsDuplex 2205 pipe fittingsSuper Duplex 2507 / S32760 pipe fittingsSS 904L pipe fittingsInconel 625 pipe fittingsMonel 400 pipe fittingsHastelloy C-276 pipe fittingsTitanium Grade 2 / 5 / 7 pipe fittingsCupro-Nickel 90/10 & 70/30 pipe fittings
Reference book · PDF
Complete Fitting Dimensions
ASME B16.9 and EN 10253 / DIN butt weld fittings; MSS SP-43, SP-75, SP-83, SP-95, SP-97; B16.11 and IS 1239 SW / threaded; NPT; pipe schedules · A4 book · 62 pages
DownloadReference book · PDFComplete Piping Dimension Catalogue
Pipes, flanges, fittings, olets, bolting, gaskets, plates and structurals, P-T ratings, alloy chemistry and mechanicals · A4 book · 194 pages
DownloadFAQ
Socket Weld Fittings: common questions
Which pipe schedule matches each socket weld class?
Under ASME B16.11, Class 3000 socket weld fittings are used with Schedule 80 (XS) pipe, Class 6000 with Schedule 160 and Class 9000 with XXS pipe.
Why is a gap left at the bottom of the socket?
A gap of about 1.6 mm between the pipe end and the socket bottom is left before welding so that thermal expansion of the pipe during welding does not crack the fillet weld.
What sizes of socket weld fittings do you make?
NPS ⅛" to 4" in Class 3000, and the sizes ASME B16.11 lists for Class 6000 and 9000. Larger or special fittings are forged and machined to drawing.
Need a size or grade not listed here?
Our engineering team manufactures against your specific drawing or datasheet, with dimensional sign-off before dispatch.
Send us your specificationIBR forged fittings
All IBR products →IBR flangesIBR butt weld fittingsIBR socket weld & threaded fittingsIBR pipesIBR SA105 flangesIBR F11 flangesIBR F22 flangesIBR F91 flangesIBR WPB fittingsIBR WP11 fittingsIBR WP22 fittingsIBR WP91 fittingsIBR SA106 Gr B pipesIBR P11 pipesIBR P22 pipesIBR P91 pipesIBR certificate forms (III-A, III-C)
Quick RFQ
