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What is ASTM A105 Coupling
ASTM A105 threaded coupling is a short pipe used to connect two pipes. It is a high-pressure forged pipe fitting accessory formed by molding and forging blanks from round steel or steel ingots, and then threading them on a lathe.
ASTM A105 threaded coupling is used to reduce the risk of pipe leakages since it connects the pipelines or tubes in proper alignment.
The types of coupling are divided into full coupling and half coupling.The materials of pipe clamps include stainless steel, alloy steel, carbon steel, etc., which are suitable for connecting various pipelines
In the Amer
ican manufacturing standard ASME B16.11 for forged steel fittings, there are three different pressure rating class for the threaded fittings, class 2000, class 3000 and class 6000.
ASTM A105 Threaded Coupling Specification
Types | Full Coupling , Half Coupling |
Shapes | Con-coupling , Red-coupling |
Normal Size | 1/8”– 4” / DN6 - DN100 |
Class | Class 3000lbs , 6000lbs |
Production Standard | ASME B16.11, BS3799, GB/T 14383 |
Thread mode | NPT, PT, BSPP, BSPT, PF |
Chemical Composition
CHEMICAL | LIMITS | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V |
ASTM A234 WPB | MIN | 0.29 | 0.10 | ||||||||
| MAX | 0.30 | 1.06 | 0.050 | 0.058 | 0.40 | 0.15 | 0.40 | 0.40 | 0.08 |
Mechanical Properties
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % | R/A % | HARDNESS |
| ASTM A234 WPB | 415 min | 240 min | 22 min | 30 min | 197 max |
ASME B16.11 Threaded Coupling Dimension
| Nominal Size | End-to-End | Outside Diameter | Length of Thread | |||
| DN | NPS | W | D | L 5 min | L 2 min | |
| 3000 & 6000 | 3000 | 6000 | ||||
| 6 | 1/8 | 32 | 16 | 22 | 6.4 | 6.7 |
| 8 | 1/4 | 35 | 19 | 25 | 8.1 | 10.2 |
| 10 | 3/8 | 38 | 22 | 32 | 9.1 | 10.4 |
| 15 | 1/2 | 48 | 28 | 38 | 10.9 | 13.6 |
| 20 | 3/4 | 51 | 35 | 44 | 12.7 | 13.9 |
| 25 | 1 | 60 | 44 | 57 | 14.7 | 17.3 |
| 32 | 11/4 | 67 | 57 | 64 | 17.0 | 18.0 |
| 40 | 11/2 | 79 | 64 | 76 | 17.8 | 18.4 |
| 50 | 2 | 86 | 76 | 92 | 19.0 | 19.2 |
| 65 | 21/2 | 92 | 92 | 108 | 23.6 | 28.9 |
| 80 | 3 | 108 | 108 | 127 | 25.9 | 30.5 |
| 100 | 4 | 121 | 140 | 159 | 27.7 | 33.0 |
ASTM A105 Coupling Weight
Nominal Size | THRD Coupling | ||
D N | NPS | 3000 | 6000 |
6 | 1/8 | 0.06 | 0.09 |
15 | 1/2 | 0.22 | 0.40 |
32 | 11/4 | 0.86 | 1.32 |
65 | 21/2 | 3.00 | 4.81 |
ASTM A105 Coupling Packing & Inspection
What is ASTM A105 Coupling
ASTM A105 threaded coupling is a short pipe used to connect two pipes. It is a high-pressure forged pipe fitting accessory formed by molding and forging blanks from round steel or steel ingots, and then threading them on a lathe.
ASTM A105 threaded coupling is used to reduce the risk of pipe leakages since it connects the pipelines or tubes in proper alignment.
The types of coupling are divided into full coupling and half coupling.The materials of pipe clamps include stainless steel, alloy steel, carbon steel, etc., which are suitable for connecting various pipelines
In the Amer
ican manufacturing standard ASME B16.11 for forged steel fittings, there are three different pressure rating class for the threaded fittings, class 2000, class 3000 and class 6000.
ASTM A105 Threaded Coupling Specification
Types | Full Coupling , Half Coupling |
Shapes | Con-coupling , Red-coupling |
Normal Size | 1/8”– 4” / DN6 - DN100 |
Class | Class 3000lbs , 6000lbs |
Production Standard | ASME B16.11, BS3799, GB/T 14383 |
Thread mode | NPT, PT, BSPP, BSPT, PF |
Chemical Composition
CHEMICAL | LIMITS | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V |
ASTM A234 WPB | MIN | 0.29 | 0.10 | ||||||||
| MAX | 0.30 | 1.06 | 0.050 | 0.058 | 0.40 | 0.15 | 0.40 | 0.40 | 0.08 |
Mechanical Properties
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % | R/A % | HARDNESS |
| ASTM A234 WPB | 415 min | 240 min | 22 min | 30 min | 197 max |
ASME B16.11 Threaded Coupling Dimension
| Nominal Size | End-to-End | Outside Diameter | Length of Thread | |||
| DN | NPS | W | D | L 5 min | L 2 min | |
| 3000 & 6000 | 3000 | 6000 | ||||
| 6 | 1/8 | 32 | 16 | 22 | 6.4 | 6.7 |
| 8 | 1/4 | 35 | 19 | 25 | 8.1 | 10.2 |
| 10 | 3/8 | 38 | 22 | 32 | 9.1 | 10.4 |
| 15 | 1/2 | 48 | 28 | 38 | 10.9 | 13.6 |
| 20 | 3/4 | 51 | 35 | 44 | 12.7 | 13.9 |
| 25 | 1 | 60 | 44 | 57 | 14.7 | 17.3 |
| 32 | 11/4 | 67 | 57 | 64 | 17.0 | 18.0 |
| 40 | 11/2 | 79 | 64 | 76 | 17.8 | 18.4 |
| 50 | 2 | 86 | 76 | 92 | 19.0 | 19.2 |
| 65 | 21/2 | 92 | 92 | 108 | 23.6 | 28.9 |
| 80 | 3 | 108 | 108 | 127 | 25.9 | 30.5 |
| 100 | 4 | 121 | 140 | 159 | 27.7 | 33.0 |
ASTM A105 Coupling Weight
Nominal Size | THRD Coupling | ||
D N | NPS | 3000 | 6000 |
6 | 1/8 | 0.06 | 0.09 |
15 | 1/2 | 0.22 | 0.40 |
32 | 11/4 | 0.86 | 1.32 |
65 | 21/2 | 3.00 | 4.81 |
ASTM A105 Coupling Packing & Inspection
