Last month, I received an inquiry about stainless steel threaded fittings from our old customer. This is the 15th order from our valued customer Mr. Kumar from the UAE. Our old customer is very satisfied with our products and services, so we have established a long-term cooperation. His requirements are as follows: We complete these projects within 30 days and deliver them to Dubai on time as promised.
| Description of Goods | Quantity (Ea.) | ||
| 1 | SS-12- RB-8 | SCWD BUSHING – 3/4″NPTM x 1/2″NPTF – 316/316L NACE | 16 |
| 2 | 8-8-FE-SS | SCWD ELBOW 90 DEG 3000# – 1/2″NPTF – 316/316L NACE | 33 |
| 3 | 8-8-FE-347 | SCWD ELBOW 90 DEG 3000# – 1/2″NPTF – SS 347 | 6 |
| 4 | 8-PH-SS-347 | SCWD PLUG ROUND HEAD – 1/2″NPTM – SS 347 | 9 |
| 5 | 8-PH-2507 | SCWD PLUG ROUND HEAD – 1/2″NPTM – UNS S32750 NACE | 3 |
| 6 | 8-8-8-FT-SS | SCWD TEE EQUAL FORGED – 1/2″NPTF-3000 Series – 316/316L NACE | 7 |
| 7 | 8-8-8-FT-S | SCWD TEE EQUAL FORGED – 1/2″NPTF-3000 Series – LTCS NACE | 303 |
| 8 | 8-8-8-FT-347 | SCWD TEE EQUAL FORGED – 1/2″NPTF-3000 Series – SS 347 | 3 |
| 9 | 8-8-8-FT-2507 | SCWD TEE EQUAL FORGED – 1/2″NPTF-3000 Series – UNS S32750 NACE | 3 |
| 10 | BFO42U3010-SS | SCWD UNION – 1/2″NPTF-3000 Series – 316/316L NACE | 92 |
| 11 | BFO42U3010-347 | SCWD UNION – 1/2″NPTF-3000 Series – SS 347 | 3 |
| 12 | 8-8-FE-2507 | SCWD ELBOW 90 DEG 3000#-1/2″NPTF-UNSS32750NACE | 9 |
| 13 | 8-PH-SS | SCWD PLUG ROUND HEAD-1/2″NPTM-316/316L NACE | 3 |
| 14 | 8-8-8-FT-347 | SCWD TEE EQUAL FORGED-1/2″NPTF-3000 Series-SS 347 | 3 |
Inspection photos
Specification of ASTM A182 Threaded Fittings
Stainless Steel Threaded Fittings are commonly used in piping systems where secure connections are needed but welding is not an option or practical. These fittings have internal or external threads that allow them to be screwed into the corresponding threaded pipes or other fittings. They’re known for their durability, corrosion resistance, and ease of installation.
Threaded Fittings resist corrosion from caustic chemicals, corrosive fluids, oils, and gases, and withstand pressure and high temperatures in plumbing applications and food and dairy processing.
Chemical Composition
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | Mo | N | Ti | Cu |
| ASTM A182 F304 | MIN | 8.0 | 18.0 | |||||||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.0 | 20.0 | 0.10 | ||||
| ASTM A182 F316 | MIN | 10.0 | 16.0 | 2.00 | ||||||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 14.0 | 18.0 | 3.00 | 0.01 | |||
| ASTM A182 F317 | MIN | 11.00 | 18.00 | 3.00 | ||||||||
| MAX | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 15.00 | 20.00 | 4.00 | ||||
| ASTM A182 F321 | MIN | 9.00 | 17.00 | 0.10 | 5(C+N) | |||||||
| MAX | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 12.00 | 19.00 | 0.70 | ||||
| ASTM A182 F347 | MIN | 9.00 | 17.00 | |||||||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 13.00 | 20.00 |
Mechanical Property
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % | R/A % |
| ASTM A182 F304 | 515 min | 205 min | 30 min | 50 min |
| ASTM A182 F316 | 515 min | 205 min | 30 min | 50 min |
| ASTM A182 F317 | 515 min | 205 min | 30 min | 50 min |
| ASTM A182 F321 | 515 min | 205 min | 30 min | 50 min |
| ASTM A182 F347 | 515 min | 205 min | 30 min | 50 min |
Types of Threaded Fittings
Threaded fittings come in various shapes and sizes to accommodate different pipe systems and needs. Common types include:
Elbows (90°, 45°): Used to change the direction of the pipe.
Tees: Used to create branch connections (T-shaped).
Couplings: Used to connect two pipes in a straight line.
Reducers: Used to reduce the size of a pipe (e.g., from a larger to a smaller diameter).
Caps: Used to seal the end of a pipe.
Unions: Used for easy disassembly of the pipe connection, allowing for maintenance or replacement.
Bushings: Used to connect pipes of different sizes.
Nipple: A short piece of pipe with threads on both ends, used for joining two fittings.
Stainless Steel Threaded Fittings Dimension
| Nominal Size | End-to-End | End-to-End | Outside Diameter | End Wall | Length of Thread | |||||
| DN | NPS | W | P | D | G min | L 5 m in | L 2 m in | |||
| 3000 & 6000 | 3000 | 6000 | 3000 | 6000 | 3000 | 6000 | ||||
| 6 | 1/8 | 32 | 19 | 16 | 22 | 4.8 | 6.4 | 6.7 | ||
| 8 | 1/4 | 35 | 25 | 19 | 25 | 4.8 | 8.1 | 10.2 | ||
| 10 | 3/8 | 38 | 25 | 27 | 22 | 32 | 4.8 | 6.4 | 9.1 | 10.4 |
| 15 | 1/2 | 48 | 32 | 33 | 28 | 38 | 6.4 | 7.9 | 10.9 | 13.6 |
| 20 | 3/4 | 51 | 37 | 38 | 35 | 44 | 6.4 | 7.9 | 12.7 | 13.9 |
| 25 | 1 | 60 | 41 | 43 | 44 | 57 | 9.7 | 11.2 | 14.7 | 17.3 |
| 32 | 1 1/4 | 67 | 44 | 46 | 57 | 64 | 9.7 | 11.2 | 17.0 | 18.0 |
| 40 | 1 1/2 | 79 | 44 | 48 | 64 | 76 | 11.2 | 12.7 | 17.8 | 18.4 |
| 50 | 2 | 86 | 48 | 51 | 76 | 92 | 12.7 | 15.7 | 19.0 | 19.2 |
| 65 | 2.5 | 92 | 60 | 64 | 92 | 108 | 15.7 | 19 | 23.6 | 28.9 |
| 80 | 3 | 108 | 65 | 68 | 108 | 127 | 19 | 22.4 | 25.9 | 30.5 |
| 100 | 4 | 121 | 68 | 75 | 140 | 159 | 22.4 | 28.4 | 27.7 | 33 |
Stainless Steel Threaded Fittings Application
- Oil and Gas Industries
- Food Processing Industries
- Equipments
- Pipeline
- Power Industries
- Ship Building Industries
- Paper Industries
- Cement Industries
- Chemical Industries