ASME B16.11 Half Coupling
Refer Stainless Steel Threaded Half Coupling Dimensions And ANSI B16.11 Screwed Half Coupling 1/2 6000# A105 Specification List.

ASME B16.11 Threaded Half Coupling

Stainless Steel Threaded Half Coupling

Carbon Steel Threaded Coupling
Table of contents
- What Is A Threaded Coupling?
- What Is The Pressure Rating Of ASME B16.11 Half Coupling?
- What Is A Half Coupling Used For?
- Difference Between Half Coupling And Full Coupling?
- Stainless Steel Threaded Half Coupling Dimensions
- Class 150 Half Coupling Dimensions
- ASME B16.11 Half Coupling Threaded - Class 3000
- Threaded Half Coupling 1/2 6000# A105 Dimensions
- Standard Specification Of Stainless Steel Threaded Half Coupling
- Threaded Half Coupling Price List
- Female & Male Half Coupling Size Chart
- Bspp Half Coupling Weight Chart According to ASME B16.11
- Threaded Joint Coupling Pressure Ratings
- Carbon Steel Half Coupling Tolerance Formula
- Frequently Used ASME B16.11 Threaded Half Coupling Types

Forged Steel Threaded Half Coupling

Threaded Half Coupling 1/2 6000# A105

ANSI B16.11 Screwed Half Coupling


What Is A Threaded Coupling?
The threaded pipe half coupling is a short length of pipe used to connect two pieces of pipe without the need for much space. A two inch threaded half coupling can have either male threads at one end or female threads and no thread on the other end. The ASME B16.11 half coupling threaded - class 3000 has 3000lb pressure containment and range from NPS1/2 to NPS4. The ASME B16.11 half coupling threaded dimensions include the bore diameter, wall thickness and the length of the coupling. The one inch 1 threaded half coupling can be used with a one inch piping. The different ASME B16.11 coupling allow for application in different projects.
What Is The Pressure Rating Of ASME B16.11 Half Coupling?
There are different standards and pressure classes to specify; for example the threaded half coupling 1/2 6000# a105 is a ½ inch 6000 class and is made up of a105 alloy. The threaded half coupling 3000 is made to handle pressures up to 3000 lbs. The threaded half coupling size is also involved in the pressure specifications. The wall thickness of the threaded half coupling stainless steel dimensions directly corresponds to the pressure containment. The sizes can vary from ½ inches such as in the threaded half coupling 1/2 up to 48 inches depending on the standards.
What Is A Half Coupling Used For?
The ASME B16.11 coupling threaded is used with a welding or without a welding. The materials range from stainless steel in ASME B16.11 half coupling threaded to alloys, brass and copper depending on the need of half coupling ASME B16.11 in specific applications. If the ASME B16.11 half coupling dimensions include different threads at each ends, it can be used as an adapter. The 1/2 threaded half coupling is used in low pressure applications, usually domestic. And the ASME B16.11 half coupling threaded vary according to applications such as the domestic water piping, gas, sea water and other industries. The main difference of half coupling and full coupling is that the half coupling only has threads at one end and the full coupling has threads at both ends.
Difference Between Half Coupling And Full Coupling
The threaded half coupling differ and depend on the piping it is used in. The stainless steel threaded half coupling is the most used one in terms of the composition material.
The threaded full coupling is a pipe fitting of short length that has two pipes joined together by threads at both ends.
ASME B16.11 Threaded Half Coupling Weight Chart, EIL Approved Carbon Steel Screwed Half Couplings Manufacturer In India.
Stainless Steel Threaded Half Coupling Dimensions

Class 150 Half Coupling Dimensions

ASME B16.11 Half Coupling Threaded - Class 3000
Normal Pipe Sizes (NPS) | End to End | (O.D.) Outside Diameter |
Minimum Length of Thread |
|
A | D | B | J | |
1/2 | 48 | 28 | 10.9 | 13.6 |
3/4 | 51 | 35 | 12.7 | 13.9 |
1 | 60 | 44 | 14.7 | 17.3 |
1.1/4 | 67 | 57 | 17 | 18 |
1.1/2 | 79 | 64 | 17.8 | 18.4 |
2 | 86 | 76 | 19 | 19.2 |
2.1/2 | 92 | 92 | 23.6 | 28.9 |
3 | 108 | 108 | 25.9 | 30.5 |
4 | 121 | 140 | 27.7 | 33 |
Threaded Half Coupling 1/2 6000# A105 Dimensions
NPS (Normal Pipe Sizes) | End to End | O.D. (Outside Diameter) |
Minimum Length of Thread |
|
A | D | B | J | |
1/2 | 48 | 38 | 10.9 | 13.6 |
3/4 | 51 | 44 | 12.7 | 13.9 |
1 | 60 | 57 | 14.7 | 17.3 |
1.1/4 | 67 | 64 | 17 | 18 |
1.1/2 | 79 | 76 | 17.8 | 18.4 |
2 | 86 | 92 | 19 | 19.2 |
2.1/2 | 92 | 108 | 23.6 | 28.9 |
3 | 108 | 127 | 25.9 | 30.5 |
4 | 121 | 159 | 27.7 | 33 |
ANSI B16.11 High Pressure Threaded Half Coupling Fittings Size Chart And Largest 1/2 Npt 3000# Half Couplings Supplier In Mumbai, India.
Standard Specification Of Stainless Steel Threaded Half Coupling
Specification : | ASME B16.11 Half Coupling |
---|---|
Pressure Rating | Threaded Fittings = Class 2000, Class 3000, Class 6000 |
Type Of Pipe systems | 45 Deg Elbow, Equal tee, Full Coupling, Reducing Tee, 90 Deg Elbow, Half Coupling, Street Elbow, Bull Plug, Boss, Union (Male/Female), Lateral Outlet, 45 Lateral Tee, Equal Cross, Pipe Cap, Branch Outlets, Swage Nipple. |
Material | Stainless Steel (ASTM-182) Carbon Steel (ASTM-105) Alloy Steel (ASTM-182) Low Alloy Steel (ASTM-350) Duplex Steel Cooper Nickel |
Standards | ASME B16.11 (American Standard), Bs3799, MSS SP 79, JIS B2302, MSS-SP-97 (Threadolet), MSS-SP-83 (Union), ASME B36.19 (Nipple) |
Types Of Thread | NPT, BSPP, BSPT, PF, PT, MPT |
Applications | Oil and Gas Chemical Power station Water Pipeline Noncritical Applications Fire Protection |
Advantages | Simple Usage Easy installation Economic as cheaper |
Size | Threaded Fittings = ½” – 4” |
Thread Connections | ASME B16.11 (Socket Welding and Threaded), MSS-SP-83 (Class Unions), ASME B16.3 (Malleable Iron Fittings), ASME B16.4 ( Gray Iron Fittings), ASME B16.39 (Malleable Iron Unions), ASME B16.34 (Valves — Flanged), ASME B16.39 (Malleable Iron Pipe Unions, 150#, 250#, Or 300#). |
BSPP Forged Steel Screwed Half Coupling Pressure Rating, Contact For Best Copper/ Aluminum/ Brass Threaded Joint Couplings At Low-price.
Threaded Half Coupling Price List
Size | Class | Material | Price In US ($) |
1/2 NPS | Class 3000 | ASTM A105 | $3.00 |
2 NPS | Class 3000, | ASTM A105 | $15.6 |
1 NPS | Class 3000 | ASTM A105 | $7.3 |
Please note this is an approx Price of ASME B16.11 Threaded Coupling in India. For final Stainless Steel Threaded Coupling Price List Please Call on +91 - 22 - 67437342 or drop an Email to info@rajtilakmetal.com.

Female & Male Half Coupling Size Chart
Description | Class | ||
Class 2000 | Class 3000 | Class 6000 | |
Coupling Half-Coupling |
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 | |
Normal Pipe Wall | SCH 80 / XS | SCH 160 | XXS |
NPS | End To End | Minimum Length Of Thread | O.D. | |||
---|---|---|---|---|---|---|
Inches | ASME B16.11 Full Coupling | ASME B16.11 Half Coupling | Class 3000 | Class 6000 | ||
A | A/2 | B | C | D | D | |
1/8 | 32 | A/2 | 6.7 | 6.4 | 16 | 22 |
1/4 | 35 | A/2 | 10.2 | 8.1 | 19 | 25 |
3/8 | 38 | A/2 | 10.4 | 9.1 | 22 | 32 |
1/2 | 48 | A/2 | 13.6 | 10.9 | 28 | 38 |
3/4 | 51 | A/2 | 13.9 | 12.7 | 35 | 44 |
1 | 60 | A/2 | 17.3 | 14.7 | 44 | 57 |
1 1/4 | 67 | A/2 | 18 | 17 | 57 | 64 |
1 1/2 | 79 | A/2 | 18.4 | 17.8 | 64 | 76 |
2 | 86 | A/2 | 19.2 | 19 | 76 | 92 |
2 1/2 | 92 | A/2 | 28.9 | 23.6 | 92 | 108 |
3 | 108 | A/2 | 30.5 | 25.9 | 108 | 127 |
4 | 121 | A/2 | 33 | 27.7 | 140 | 159 |
Looking To Buy Class 6000 Male/ Female Threaded Coupling Contact Rajtilak Metal, Specialise In Distributing Of ASME B16.11 Half Coupling Threaded - Class 3000.
Bspp Half Coupling Weight Chart According to ASME B16.11

Threaded Joint Coupling Pressure Ratings
ASME B16.11 Half Coupling Temperature | Class | ||||
---|---|---|---|---|---|
150 | 300 | ||||
1/4 – 1 inch. | 1 1/4 – 2 inch. | 2 1/2 – 3 inch. | |||
(oF) | (oC) | ||||
-20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
200 | 93 | 265 | 1785 | 1350 | 910 |
250 | 121 | 225 | 1575 | 1200 | 825 |
300 | 149 | 185 | 1360 | 1050 | 735 |
350 | 177 | 150 | 1150 | 900 | 650 |
400 | 204 | – | 935 | 750 | 560 |
450 | 232 | – | 725 | 600 | 475 |
500 | 260 | – | 510 | 450 | 385 |
550 | 288 | – | 300 | 300 | 300 |
Carbon Steel Half Coupling Tolerance Formula
ANSI B16.11 American Standard Dimensional Tolerances | ||
---|---|---|
"A" - Threaded Center To Bottom | For Size 1/8" And 1/4" | ± 0.03" |
3/8", 1/2" And 3/4" | ± 0.06" | |
1", 1-1/4", 1-1/2" And 2" | ± 0.08" | |
2-1/2", 3", And 4" | ± 0.10" | |
"B" - Threaded Bore Diameter | For Size 1-1/2" And Smaller | + 0.020" - 0.000" |
2", 2-1/2", 3" And 4" | + 0.025" - 0.000" | |
"C" - Threaded Wall Thick. | Min. = 1.09 T (But Not Less Than 5/32") T = Wall Thickness Of Nominal Pipe Sizes | |
"D" - Bore Diameter Of Pipe Fitting | For Size 2" And Smaller | ± 0.030" |
2-1/2", 3" And 4" | ± 0.060" | |
"E" - Threadeds- Bottom To Bottom - Full Couplings | For Size 1/8" And 1/4" | ± 0.06" |
3/8", 1/2" And 3/4" | ± 0.12" | |
1", 1-1/4", 1-1/2" And 2" | ± 0.16" | |
2-1/2", 3", And 4" | ± 0.20" | |
"F" - Bottom Of Threaded To Opposite Face - ANSI B16.11 Half Couplings | For Size 1/8" And 1/4" | ± 0.03" |
3/8", 1/2" And 3/4" | ± 0.06" | |
1", 1-1/4", 1-1/2" And 2" | ± 0.08" | |
2-1/2", 3", And 4" | ± 0.10" | |
"G" - Gap Of Welding | Approx. 0.06" Before Welding Recommended Gap | |
"H" - Min. Flat | Min. Flat = 0.75 X Min. Threaded Wall Thick. |
Frequently Used ASME B16.11 Threaded Half Coupling Types

N80, API 5CT, 1/8 inch, Threaded Pipe Couplings

3 Inch, CL3000, ANSI B16.11, Threaded Reducer Couplings

ASTM A105, 2 Inch, Class 6000, FNPT End, Male/ Female Threaded Couplings

ASTM A182 F316, 2000LB, FNPT, Threaded Brass Couplings

ASTM A182 F304, 1/2 Inch, Threaded Joint Couplings

1/4 inch Asme B16.11 Half Coupling Screwed - Class 3000

DN80, ASME B16.11, PN400, Stainless Steel Screwed Half Couplings

API, 9.2 LB, 3.5 Inch, Asme B16.11 Half Coupling

ASTM A105, 4 Inch, ANSI B16.11 Forged Half Couplings

API 6000, NPT Female, Stainless Steel Half Couplings

API 3000, Bs3799, 3000 LB, Screwed Half Couplings
