• Email: armechalloys@gmail.com
  • Landline: +91 - 022-6659 1540

Trusted socket weld boss manufacturer in India


Threaded Boss



Specification of threaded boss

Size Pressure Schedule
  • 1/2" To 2 NSP" (Socket Welding)
  • 1/2" To 2" NPS (Threaded)
  • DN10 To DN50
  • 8MM To 40MM
  • Class 1000
  • Class 2000
  • Class 3000
  • Class 6000
  • Class 9000
  • Class 3000 : Schedule S160
  • Class 6000 : Schedule XXH
Marking On Threaded Weld Boss End Application Of Socket Weld Boss
  • Size
  • Standard
  • Working pressure
  • Material
  • Class Pressure
  • Heat number
  • Manufacture logo
  • Origin of country
  • Threaded end for 2000#, 3000#, 6000
  • Socket welding end for Class 3000, 6000, 9000
  • Mining slurry
  • Power stations
  • Oil and Gas
  • Petrochemicals
Manufacturing Process Types Of ASME B16.11 Boss Dimensions
  • Forging process
  • Casing process
  • Socket weld boss
  • Threaded boss
  • Screwed boss
  • NPT boss
MSS SP 97
ASME Standard Forging Test Certification
  • ASME B16.11
  • ANSI B16.11
  • CNC Machined
  • Forged
EN 10204 3.1
NPT Standard Threads Types Documentation for Stainless Steel Threaded Boss
ANSI/ASME B1.20.1
  • NPT
  • SAE
  • NPTF
  • BSPP
  • BSP
  • BSPT
  • Heat treatment charts
  • Welding procedure specification
  • Raw material test reports
  • MTC
Value Added Services Heat Treatment Surface Treatment
  • Beveling end
  • Polishing
  • Cutting
  • MTR’s Available
  • Metal stampings
  • Coating
  • Tempering
  • Quenching
  • Normalizing
  • Solution
  • Polished
  • Anti-rust Oil
  • Galvanized
  • Zinc Plated


Compare the price and size range of different stainless steel threaded boss and socket welding boss supplier in Mumbai.



Socket weld boss dimension

Socket weld boss dimension
Normal Pipe Size Thickness Of Socket (C) (Minimum) Depth Of (J) minimum End to End Of (L) End to End Of (R) Diameter of Socket Bore (B) Bore Diameter Of (D)
1/4 3.3 10 26 25 14.10 8.5
3/8 3.5 10 27 30 17.55 11.8
1/2 4.1 10 32 30 21.70 15.0
3/4 4.25 13 37 30 27.05 20.2
1 5 13 41 40 33.80 25.9
1.25 5.3 13 43 45 42.55 34.3
1.5 5.55 13 45 55 48.65 40.1
2 6.05 16 57 55 61.10 51.7

Buy screwed boss and NPT boss with leak-proof test reports according to ASME B16.11



Type of ASME B16.11 boss


Socket weld boss

Socket weld boss

Stainless steel threaded boss

Stainless steel threaded boss

Socket welding boss

Socket welding boss

Screwed boss

Screwed boss

NPT boss

NPT boss

Threaded weld boss

Threaded weld boss

Aluminum threaded boss

Aluminum threaded boss

Threaded external boss

Threaded external boss

Threaded boss fitting

Threaded boss fitting

Threaded welding boss

Threaded welding boss

Threaded boss insert

Threaded boss insert

Socket weld boss fitting

Socket weld boss fitting



Testing for threaded weld boss

  • Material inspection
  • Hardness test
  • Impact test
  • Visual inspection
  • Tensile test

Screwed boss price
Purchase threaded weld boss and aluminum threaded boss from an ISO-approved stockist at an excellent price

Screwed boss price

(3000 PSI) (Grade : ASTM Grade A105) ( per piece in US Dollar)

  • 8MM
  • 10MM
  • 15MM
  • 20MM
  • 25MM
  • 32MM
  • 40MM
  • 50MM
  • US $0.70
  • US $1.08
  • US $1.17
  • US $1.26
  • US $1.30
  • US $2.09
  • US $2.29
  • US $2.47

Refer to ASME B16.11 boss dimensions, and documentation requirements of threaded external boss in India.


Threaded boss dimensions

Class 3000

Threaded boss dimensions
NPS 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2
B 0.690 0.750 0.940 1,000 1.190 1.310 1.560 1.690
A 0.750 0.875 1.125 1.375 1,750 2,250 2.500 3,000
C 0.438 0.563 0.703 0.906 1.141 1,468 1,688 2.188

Material of NPT boss

Stainless Steel Forged Fittings Carbon Steel Forged Fittings Alloy Steel Forged Fittings
  • ASTM A105 Threaded fittings
  • ASME/ ASTM A350 LF2
  • Low temperature carbon steel
  • Carbon Steel F42
  • ASTM A694 F46
  • CS SA694 Grade F52
  • SA 694 Carbon Steel F56
  • High Yield F60
  • CS F65
  • ASME SA694 F70
  • ASTM A182 F1 Alloy Stel
  • SA182 F1 F5
  • ASME SA182 Grade F9
  • A182 Gr F11
  • F22 Alloy Steel
  • ASME A182 F11 F91
Super Duplex Forged Fittings Duplex Forged Fittings Titanium Forged Fittings
Monel Forged Fittings Nickel Alloy Forged Fittings Copper Nickel Forged Fittings
  • Monel 400 : ASTM B564 UNS N04400 boss socket weld
  • Monel 401 : ASTM B564 UNS N04401 threaded boss insert
  • Monel K500 : ASTM B564 UNS N05500 high pressure threaded boss
  • Nickel Alloy 200 : ASTM B564 UNS N02200 threaded brake bosses
  • Nickel Alloy 201 : ASTM B564 UNS N02201 threaded bosses
  • Copper Nickel 90/10 : ASTM B151 UNS C70600 threaded pipe bosss
  • Copper Nickel 70/30 : ASTM B151 UNS C71500 BSPT bosss
Inconel Forged Fittings Incoloy Forged Fittings Hastelloy Forged Fittings
  • Inconel 600 Forged Fittings
  • Inconel 625 Forged Fittings
  • Inconel 601 : ASTM B564 UNS N06601 threaded boss
  • Inconel 617 : ASTM B564 UNS N06617 socket weld bosses
  • Inconel 686 : ASTM B564 UNS N06686 socket welding bosses
  • Inconel 690 : ASTM B564 UNS N06690 screwed boss
  • Inconel 725 : ASTM B564 UNS N07725 NPT boss
  • Incoloy 800 : ASTM B407 UNS N08800 threaded weld boss
  • Incoloy 800H : ASTM B407 UNS N08810 threaded external bosses
  • Incoloy 800HT : ASTM B407 UNS N08811 threaded boss fitting
  • Incoloy 825 : ASTM B407 UNS N08825 socket weld boss fitting
  • Hastelloy C22 : ASTM B366 UNS N06022 threaded welding bosses
  • Hastelloy C276 : ASTM B366 UNS N10276 boss thread
  • Hastelloy C2000 : ASTM B366 UNS N06200 welding boss threaded


Stainless steel threaded boss weight chart

Normal Pipe Size 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2
Weight 0.049 0.0816 0.140 0.190 0.358 0.45 0.78 1.14


Socket welding boss documentation requirement

Socket welding boss documentation requirement