ASME B16.11 A182 F904L N08904 Duplex Stainless Steel 904L Half/Full Coupling
1.ANSI/ASME B16.11 Threaded Coupling Standard Specification
| Dimensions | ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799 |
| Size | 1/8″ NB TO 4″ NB |
| Class | 3000 LBS, 6000 LBS, 9000 LBS |
| Type | Threaded (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT |
| Form | Threaded Coupling, Threaded Pipe Coupling, Threaded Half Coupling |
| Value Added Services: | Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering |
| Production Grades: | Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel |
2. 904L Stainless Steel Couplings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| 904L | min. max. | - 0.02 | - 2 | - 1 | - 0.045 | - 0.035 | 19 23 | 4 5 | 23 28 | 1 2 |
3. 904L Stainless Steel Couplings Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) | Brinell (HB) |
| 904L | 490 | 220 | 36 | 70-90 typical | 150 |
4. ASME B16.11 Threaded Coupling Material
Stainless Steel Forged Threaded Coupling :
ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L, ASTM A312/A403 TP304, TP304L, TP316, TP316L
Duplex & Super Duplex Steel Forged Threaded Pipe Coupling:
ASTM A 182 – F 51, F53, F55 S 31803, S 32205, S 32550, S 32750, S 32760, S 32950.
Carbon Steel Forged Threaded Half Coupling:
ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2, ASTM / ASME A 53 GR. A & B, ASTM A 106 GR. A, B & C. API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 65 & X 70. ASTM / ASME A 691 GR A, B & C
Alloy Steel Forged Threaded Half Coupling:
ASTM / ASME A 182, ASTM / ASME A 335, ASTM / ASME A 234 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91, ASTM / ASME A 691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91
Copper Alloy Steel Forged Threaded Half Coupling : ASTM / ASME SB 111 UNS NO. C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 C 71500, ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)
Nickel Alloy Forged Threaded Half Coupling:
ASTM / ASME SB 336, ASTM / ASME SB 564 / 160 / 163 / 472, UNS 2200 (NICKEL 200) , UNS 2201 (NICKEL 201 ) , UNS 4400 (MONEL 400 ) , UNS 8020 ( ALLOY 20 / 20 CB 3 ) , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 (INCONEL 601) , UNS 6625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276)
5. ANSI/ASME B16.11 THREADED COUPLING DIMENSIONS
Threaded Pipe Coupling Dimension Chart, Threaded Half Coupling Dimensions
Threaded Coupling Class 3000 Dimensions NPS 1/2 to 4
| NPS | End to End | 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 Class 6000 Dimensions NPS 1/2 to 4
| NPS | End to End | 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 |
General notes:
Dimensions are in millimeters unless otherwise indicated.
Dimension (B) is minimum length of perfect thread.
The length of useful thread (B plus threads with fully formed roots and flat crests) shall not be less than J.
ANSI/ASME B16.11 Threaded Coupling Sizes
| Description | Class Designation |
| 2000 | 3000 | 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 |
| Pipe Wall | SCH 80 / XS | SCH 160 | XXS |
6. ASME B16.11 Threaded Coupling Weight
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ASME B16.11 A182 F904L N08904 Duplex Stainless Steel 904L Half/Full Coupling Images
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