Stainless Steel Threaded Fittings Specification

What are the advantages of using stainless steel threaded fittings over other connection methods?

  • SS Threaded fittings are easy to install, especially if you have a small pipe size.
  • The stainless steel threaded fittings manufacturer in India promotes the product for its ease of assembling and disassembling. It does not require welding
  • The SS Screwed fitting are available in different shapes, sizes and configurations, which makes them versatile and perfect for various applications.
  • The SS threaded pipe fitting offer reliable leakage free sealing and are ideal for space constraining areas.

Stainless Steel Threaded Fittings

ASME B16.11 Stainless Steel Threaded Pipe Fittings manufacturer in Mumbai offers PTFE-coated threads (sealant liquid or sealing tape not required)


How are the pressure ratings of SS threaded fittings determined, and what do they signify?

  • The pressure ratings of the SS threaded fittings are determined in accordance with industry standards.
  • It is also influenced by the design and choice of the stainless steel NPT fitting grade.
  • The pressure ratings are also established through testing and evaluation processes. It is done in accordance with the industry where the threaded fitting would be used.

Stainless Steel Threaded Fittings

ISO 4114/ DIN 2993 Stainless Steel Screwed Elbow, Union and Threaded Coupling supplier in Mumbai, 100% leakage tested at 6 Bar


What types of threads are used in stainless steel screwed fittings, and what are their differences?

NPT and BSP threads are commonly used for stainless steel screwed fittings. Differences between the two threads would include:

  • The stainless steel NPT fitting have a tapered design while BSP threads can also have a parallel design.
  • NPT thread comes with one variation NPTF, whereas the threads for stainless steel BSP fitting come in BSPP and BSPT variants.

Stainless Steel Threaded Fittings Specification

Most Selling Size

Most Selling Size :

  • 1/8 Inch to 4 inch
  • 5" To 8" inch Only For Pipe Nipple
Common Thickness

Common Thickness :

  • Schedule 80 and XS for Class 2000
  • Schedule 160 for Class 3000
  • Schedule XXS for Class 6000
Manufacturing Class

Manufacturing Class :

  • 2000#
  • 3000#
  • 6000#
American Standard

American Standard :

  • ASME B16.11
Applicable Fluids Types

Applicable Fluids Types :

  • Water
  • Oil & Gas
  • Steam
  • Air
Packaging Types

Packaging Types :

  • Wooden Pallet
  • Wooden Cases
  • Carton Box
Certificates

Certificates :

  • EN 10204 3.1
Female Threads Standard

Female Threads Standard

  • BSPP (Parallel)
  • ISO 228-1
Connection Method

Connection Method :

  • Threaded (BSPP or NPT)
Manufacturing Method

Manufacturing Method :

  • CNC Machined
  • Forged
Uses

Uses :

  • Power stations
  • Oil and Gas
  • Petrochemicals
  • Mining slurry
Forging Way

Forging Way :

  • Closed Die Forging
  • Open Die Forging
Threads Types

Threads Types :

  • UNF and UN
  • NPTF and NPT
  • BSPP
  • BSPT
  • Metric parallel
  • Metric tapered
 Services

Services :

  • Metal stampings
  • Polishing
  • MTR Report
  • Cutting
  • Beveling end
Manufacturing

Manufacturing :

  • MSS SP-43
  • MSS SP-95
Finish Type

Finish Type :

  • Polished
Marking Info

Marking Info:

  • Standard
  • Size
  • Working pressure
  • Material
  • Manufacture logo
  • origin of country
  • Class Pressure
  • Heat number
Thread Connections

Thread Connections :

  • MSS-SP-83 for union
  • ASME B16.3 for Malleable iron
  • ASME B16.11 for forging
  • ASME B16.4 for Gray iron
Machines List

Machines List :

  • Control (CNC)
  • Computer Numerical
Testing & Inspection

Testing & Inspection :

  • Visual inspection
  • Impact test
  • Ultrasonic test
  • Tensile test
NPT Tapered

NPT Tapered:

  • Female thread
  • Male thread
Male Threads

Male Threads:

  • By Air
  • By Sea
  • By Train
Advantage

Advantage:

  • Durability
  • Unmatched strength
  • Corrosion resistance
Types Of Parallel Threads

Types Of Parallel Threads:

  • UN & UNF
  • BSPP
  • Metric parallel
Required Tools To Identifying Thread

Required Tools To Identifying Thread :

  • Caliper
  • Pitch Gauge
Stress Corrosion Cracking

Stress Corrosion Cracking :

  • Above 60°C
Welding Types

Welding Types:

  • Fusion Welding
Most Common Types

Most Common Types :

  • Screwed elbow & tee
  • Screwed reducer & cross
  • Screwed coupling & plug
  • Screwed cap & boss
Forging

Forging:

  • Open Die Forging
For More Information Please Contact US

Pressure Capacity Of SS Threaded Pipe Fittings


Types Pressure Capacity
Threaded Elbow Low pressure
Threaded Reducer High pressure level
Threaded Couplings High pressure
Threaded Plugs High pressure and temperature
Threaded Bushings High pressure

SS Threaded Fittings NPT Vs BSP Threads


NPT Threads BSP Threads
British Standard Pipe National Pipe Taper
From USA From New Zealand
Flat Shape Rounded Shape
60 degrees 55 degrees

SS Threaded 45 Deg Elbow Price List

Connections = Female NPT x Female NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/8 x 1/8 US $1.07 3.93
1/4 x 1/4 US $1.32 4.85
3/8 x 3/8 US $1.75 6.43
1/2 x 1/2 US $2.55 9.37
3/4 x 3/4 US $3.35 12.30

Stainless Steel Threaded Coupling Price List

Connections = Female NPT x Female NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/8 x 1/8 US $0.91 3.34
1/4 x 1/4 US $1.88 6.91
3/8 x 3/8 US $2.50 9.18
1/2 x 1/2 US $3.21 11.79
1 x 1 US $3.89 14.29
1 1/2 x 1 1/2 US $4.78 17.56

SS Hex Head Plug Price List

Connections = Male NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/8 US $0.67 2.46
1/4 US $1.07 3.93
3/8 US $1.26 4.63
1/2 US $1.87 6.87
1 US $2.14 7.86
1 1/4 US $2.41 8.85
1 1/2 US $2.65 9.73

Stainless Hex Reducing Bushing Price List

Connections = Male NPT x Female NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/4 x 1/8 US $0.68 2.50
3/8 x 1/8 US $1.05 3.86
1/2 x 1/8 US $1.20 4.41
3/4 x 3/8 US $1.56 5.73
1 x 1/8 US $1.81 6.65
2 x 1/2 US $2.41 8.85
3 x 1 1/2 US $4.02 14.77

Stainless Steel Threaded Tee Price List

Connections = Female NPT x Female NPT x Female NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/8 x 1/8 x 1/8 US $0.94 3.45
1/4 x 1/4 x 1/4 US $2.02 7.42
3/8 x 3/8 x 3/8 US $3.22 11.83

Price List Of SS Threaded Union

Connections = Female NPT x Female NPT

Size In Inch Price In US$ (Dollar) per unit Price in UAE Dirham (AED) per unit
1/8 x 1/8 US $1.18 4.33
1/4 x 1/4 US $1.63 5.99
3/4 x 3/4 US $2.14 7.86
1 1/2 x 1 1/2 US $2.96 10.87

Types Of Stainless Steel Threaded Elbow

SS Threaded 45 Degree Elbow

SS Threaded 45 Degree Elbow

Stainless Steel Threaded 90 Degree Elbow

Stainless Steel Threaded 90 Degree Elbow

SS Female Threaded Elbow

SS Female Threaded Elbow

Stainless Steel Male Threaded Elbow

Stainless Steel Male Threaded Elbow

Stainless Steel NPT Elbow

Stainless Steel NPT Elbow

Stainless BSPT Elbow

Stainless BSPT Elbow

Common Types Of SS Screwed Tee

Stainless Threaded Equal Tee

Stainless Threaded Equal Tee

Stainless Steel Threaded Reducing Tee

Stainless Steel Threaded Reducing Tee

SS Threaded Lateral Tee

SS Threaded Lateral Tee

Top 3 NPT Threaded Reducer Types

Stainless Steel Threaded Eccentric Reducer

Stainless Steel Threaded Eccentric Reducer

SS Threaded Concentric Reducer

SS Threaded Concentric Reducer

Stainless Threaded Insert Reducer

Stainless Threaded Insert Reducer

Most Selling Types Of SS Threaded Coupling

SS Threaded Half Coupling

SS Threaded Half Coupling

Stainless Steel Threaded Full Coupling

Stainless Steel Threaded Full Coupling

Stainless Threaded Reducing Coupling

Stainless Threaded Reducing Coupling

SS Female Threaded Coupling

SS Female Threaded Coupling

SS Male Threaded Coupling

SS Male Threaded Coupling

SS NPT Threaded Coupling

SS NPT Threaded Coupling

Popular Types Of Stainless Steel Screwed Bushings

SS Threaded Hex Head Bushing

SS Threaded Hex Head Bushing

Stainless Steel Threaded NPT Bushing

Stainless Steel Threaded NPT Bushing

Stainless Threaded Reducing Bushing

Stainless Threaded Reducing Bushing

SS Threaded Plug Types

Stainless Steel Threaded Bull Plug

Stainless Steel Threaded Bull Plug

SS Threaded Hex Head Plug

SS Threaded Hex Head Plug

SS Threaded Round Head Plug

SS Threaded Round Head Plug

SS Threaded Fittings Grades


Six Most Common Stainless Steel Threaded Fittings Threads


Six Most Common Types of Threads

  • UN And UNF
  • NPT And NPTF
  • BSPP (BSP, parallel)
  • BSPT (BSP, tapered)
  • metric parallel
  • metric tapered

Standard Of SS Threaded Fittings


Standard Product
ASME B1.20.1 NPT
BS 3799 Hexagonal nipple
MSS SP 83 Union
BS 3799 Swage nipples
MSS SP 79 Reducing insert
MSS SP 95 Bull plug
MSS-SP 97 Weldolet

NPT Thread Dimensions Of Stainless Steel Screwed Fittings

(DN And NPT) Diameter In
Millimeter
Tapping
Drill Size In Millimeter
TPI Pitch In
Millimeter
1/16" 7.895 6.00 27 0.941
1/8" 10.242 8.25 27 0.941
1/4" 13.616 10.70 18 1.411
3/8" 17.055 14.10 18 1.411
1/2" 21.223 17.40 14 1.814
3/4" 26.568 22.60 14 1.814
1" 33.228 28.50 11.5 2.209
1.1/4" 41.985 37.00 11.5 2.209
1.1/2" 48.054 43.50 11.5 2.209
2" 60.092 55.00 11.5 2.209
2.1/2" 72.699 65.50 8 3.175
3" 88.608 81.50 8 3.175
3.1/2" 101.316 94.30 8 3.175
4" 113.973 107.00 8 3.175
5" 141.300 134.384 8 3.175
6" 168.275 161.191 8 3.175
8" 219.075 211.673 8 3.175
10" 273.050 265.311 8 3.175
12" 323.850 315.793 8 3.175

SS Threaded Fittings Sizes And Class

Description Class Designation
Class 3000 Class 6000 Class 9000
45 and 90 degree Elbow
Tee/ Cross/ Couplings/
Half-Couplings/
End or Pipe Caps
1/2 - 4 1/2 - 2 1/2 - 2
1/2 - 4 1/2 - 2 1/2 - 2
1/2 - 4 1/2 - 2 1/2 - 2
Pipe Size
by Wall Thickness (WT)
Schedule 80 / XS Schedule 160 XXS

Stainless Steel Threaded Pipe Fittings Dimensions


Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions

Stainless Steel Threaded Fittings Dimensions
Stainless Steel Threaded Fittings Dimensions

Class 150 Stainless Steel Threaded Fittings Pressure Rating

Size Of Pipes In Inch Dia Of
(A)
Dia. Of
(B)
ASME B16.11 Weight in Pounds
1/8 0.69 0.66 0.06
1/4 0.80 0.80 0.10
3/8 0.94 0.97 0.15
1/2 1.11 1.17 0.22
3/4 1.24 1.38 0.32
1 1.43 1.74 0.52
1-1/4 1.72 2.07 0.76
1-1/2 1.87 2.36 0.99
2 2.25 2.86 1.49
2-1/2 2.68 3.57 2.78
3 3.05 4.23 4.41
4 3.72 5.24 6.72

How Identify Different Threads Types Of SS Threaded Fittings


how identify different threads types of ss threaded fittings

Standard Name Of Stainless Steel Threaded Fittings

Standard System Name
British Standard Pipe
(BSP)
British Standard Pipe Parallel Thread
(BSPP)
British Standard Pipe Taper Thread
(BSPT)
National Pipe Thread
(NPT)
National Pipe Thread Fuel
(NPTF)

Manufacturer of Stainless Steel Bsp Fittings from 25 bar to 250 bar pressure class, buy BSPP Female and BSPT Male SS Threaded Fitting at factory price in India


Temperature And Working Pressure Of SS Threaded Fittings

Temperature (°C) Maximum Working Pressure (Bar)
Minus 20° to 40° C 20
100° 16.5
150° 15
200° 14
220° 13.5

Class 300 Threaded Fittings Pressure Rating

Normal Size Of Pipes In Inch
Length Of Thread (Minimum) Minimum (WT) Outer Dia.
Center-End
(J)
(B)
(G)
(D)
(C) (A)
1/2
13.6
10.9
3.18
33
22
1/4
13.9
12.7
3.18
38
25
33
1
17.3
14.7
3.68
46
28
38
1¼
18
17
3.89
56
33
44
1½
18.4
17.8
4.01
62
35
51
2
19.2
19
4.27
75
43
60
2½
28.9
23.6
5.61
92
52
76
3
30.5
25.9
5.99
109
64
86
4
33
27.7
6.55
146
79
106


Class 3000 Threaded Fittings Pressure Rating


Service Temperature 3000lb and Threaded (NPT)
Degree F 100 Grade F304 Grade F316
150 2570 3000
200 2425 2950
250 2280 2915
300 350 2170 2975
400 2055 2845
450 1965 2810
500 1870 2775
550 1790 2715
600 650 1715 2605
700 1650 2460
750 1590 2310
800 1535 2150
850 1480 2055
900 950 1425 1960
1000 1370 1865

Class 6000 Threaded Fittings Pressure Rating

Service Temperature 6000lb and Threaded (NPT)
Degree F A182 Grade F304 A182 Grade F316
100
150 5145 6000
200 4855 5915
250 4565 5830
350 4340 5750
400 4115 5690
450 3930 5625
500 3745 5550
550 3585 5430
650 3430 5210
700 3305 4925
750 3180 4620
800 3070 4300
850 2960 4110
950 2580 3920
1000 2745 3730

Manufacturer of 1/8" to 4" Bsp Stainless Steel Pipe Fittings in Mumbai in various types such as Nipple, Bush, Thread Adapter, Elbow, Plug, Reducer, Nut, Tee, Cross, Bends Fitting as per DIN 2993

Wall Thickness Of Forged SS Threaded Fittings

Class Designation Types Of Fitting Schedule No.
2000 Threaded 80
3000 Threaded 160
6000 Threaded

Stainless Steel Threaded Pipe Fittings Weight in KG

NPS SS threaded 90 degree elbow     SS threaded tee  SS threaded half coupling  SS threaded cap 
  Class 2000 Class 3000 Class 6000 2000 LBS 3000 LBS 3000 LBS 6000 LBS 3000#
3/8 0.07 0.12 0.18 0.09 0.16 0.03 0.09 0.03
1/2 0.12 0.19 0.28 0.16 0.26 0.07 0.16 0.07
3/4 0.19 0.30 0.45 0.26 0.42 0.10 0.22 0.10
1 0.31 0.48 0.72 0.43 0.67 0.21 0.44 0.21
11/4 0.50 0.76 1.14 0.70 1.06 0.36 0.52 0.36
11/2 0.79 1.21 1.81 1.10 1.69 0.52 0.95 0.52
2 1.27 1.93 2.89 1.77 2.70 0.69 1.40 0.69
21/2 2.03 3.08 4.62 2.84 4.31 1.15 2.00 1.15
3 3.24 4.92 7.38 4.53 6.88 1.60 3.00 1.60

Manufacturer of EN 1.4571, 1.4408, 1.4404, 1.4301 Stainless Steel Threaded Fittings in UN/UNF, BSPP, NPT/NPTF, BSPT (tapered) threads, contact Vishal Steel for a free sample!

What are the common methods used to test the quality of stainless steel threaded pipe fittings?

For testing the quality of stainless steel threaded pipe fittings, different tests can be performed on it. This includes the material test, visual inspections, dimensional tests, NDT and other tests specific to the application requirements. When a stainless threaded fitting is certified, clients can be rest assured about its quality.


Stainless Steel Threaded Fittings Pressure Rating

Product Description Pressure Class (#)
Class 2000 Fitting Class 3000 Fitting Class 6000 Fitting
ASME B16.11 Elbow
ASME B16.11 Tee/ ASME B16.11 Cross/ ASME B16.11 Coupling
ASME B16.11 Bushing/ End Cap
1/2 - 4" 1/2 - 2" 1/2 - 2"
1/2 - 4" 1/2 - 2" 1/2 - 2"
1/2 - 4" 1/2 - 2" 1/2 - 2"
Wall Thickness Of Steel Pipe 80 Sch 160 Sch XXS

What are the export requirements for stainless threaded fittings in Middle East countries?

The requirements for exporting stainless threaded fitting would depend on the origin country. However, the general rules would include producing the fitting as per the industry standards recommended in the Middle East region. They must also be packed properly to prevent damage or corrosion during the transportation process.


How do you ensure a proper seal when connecting different sizes of SS screwed elbow?

  • Attention to detail and the right technique are required to ensure a proper seal when connecting SS screwed elbow of different sizes.
  • You can apply teflon tape to the threads of both the elbows.
  • Threading both elbows would ensure that they engage smoothly. Inspect the fitting and test it for leakages.
  • Make sure not to overtighten and ensure the elbow is properly oriented and aligned.

Marking On SS Pipe Threaded Fittings

Marking On SS Pipe Threaded Fittings
  • Standard
  • Products Name
  • Class
  • Manufacturer Company Name
  • Code Of ASTM Material
  • Grade
  • Size In Inch
  • Heat Number (HN)
  • ASME B16.11
  • Hex Plug
  • 3000
  • Vishal Steel
  • Stainless Steel
  • ASTM A182 F316L
  • 1-3/8"
  • VSI 738

BSP Stainless Steel Pipe Fitting Application

  • Specialty Chemicals
  • Power Generation
  • Condensers
  • Chemical Equipment
  • Gas Processing
  • Pulp and Paper Industry
  • Sea Water Equipment
  • Pharmaceutical Equipment
  • Off-Shore Oil Drilling Companies
  • Petrochemicals
  • Heat Exchangers
  • Pharmaceuticals

Available SS Threaded Fitting Machines In Our Factory

  • Radial Driling Machine
  • Tee Cold Forming Machines
  • Elbow Cold Forming Machines
  • Oil Fired Heat Treatment Furnace
  • Heat Treatment For Forged Fitting
  • Portable Temperature Indicator
  • Conventional Machine
  • Tee Beveling Machine
  • CNC Lath
  • Hydraulic Press 150 Tons Capacity
  • Hydraulic Press 300 Tons Capacity
  • Elbow Beveling Machine
Stainless Steel Socket Weld 45 Deg Elbow

Stainless Steel Threaded Union

  • Threads :
  • ISO, DIN, BSP
  • NPT, BSPT
SS Socket Weld 90 Degree Elbow

Stainless Steel Threaded Reducing Tee

  • Schedule :
  • SCH 40
  • SCH 80
Stainless Steel Socket Weld Tee

Stainless Steel Screwed Fittings

  • Test Certificates :
  • EN 10204/3.1B
  • Raw materials certificate
Stainless Steel Socket Weld 45 Deg Elbow

SS Threaded Fittings

  • Method :
  • Threaded
SS Socket Weld 90 Degree Elbow

Stainless Steel Threaded Pipe Fittings

  • Pressure Rating :
  • Class 2000 & 3000
  • Class 6000 & 9000
Stainless Steel Socket Weld Tee

Stainless Steel BSP Fitting

  • Sizes :
  • DN6 ~ DN100
  • 1/2” to 4” Inch
Stainless Steel Socket Weld 45 Deg Elbow

BSP Stainless Steel Pipe Fittings

  • Dimension :
  • ASME 16.11/ MSS SP-79
  • MSS SP 83/ BS 3799
SS Reducing Bush

SS Reducing Bush

  • Testing methods :
  • Proof test
  • Tensile test



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