Stainless Steel Threaded Pipe Fittings
Your Professional Stainless Steel Threaded Pipe Fittings Manufacturers
Shuncheng valves is a leading manufacturer and master distributor of industrial PVF and Tank Container parts. Our company is a well-known enterprise with years of experience in design, casting, processing, assembly, inspection and testing, market and service.
-
![Stainless Steel Pipe Fittings Hose Nipple]()
Stainless Steel Pipe Fittings Hose NippleThe Stainless Steel Pipe Fittings Hose Nipple is engineered to create a superior, leak-proof interface between a female-threaded pipe port and a flexible hose. Its design incorporates multiple...read more -
![150lbs Investment Casting Hex Nipple]()
150lbs Investment Casting Hex NippleThe 150lbs Investment Casting Hex Nipple is engineered to serve as a critical bridge and length compensator in pipeline systems. It is the ideal component for extending or repairing threaded...read more -
![Stainless Steel Elbow 90]()
Stainless Steel Elbow 90Welcome to our high-performance 90° Stainless Steel Elbow, a critical component for directing flow in modern piping systems. This precision-engineered 90° Stainless Steel Elbow is designed for...read more -
![Stainless Steel Union]()
Stainless Steel UnionThe Stainless Steel Union is a critical engineered fitting designed to deliver security and unmatched serviceability in piping systems. Its intelligent three-piece design — comprising a nut,...read more
Benefits of Stainless Steel Threaded Pipe Fittings
High Strength and Durability
With excellent tensile strength (typically 515 MPa minimum) and good yield strength, stainless steel fittings can endure high internal pressures and mechanical stress without deforming or failing.
Exceptional Thermal Stability
Stainless steel retains its mechanical properties across a broad temperature range—from cryogenic conditions up to 800°C (1472°F) intermittently. It resists thermal expansion and maintains strength at elevated temperatures.
Excellent Chemical Resistance
These fittings exhibit strong resistance to a wide array of chemicals, including dilute acids (e.g., acetic, citric, nitric), alkalis, and many organic solvents. While not suitable for hydrochloric or sulfuric acid at high concentrations, they perform exceptionally well in most industrial chemical handling and storage applications.
Hygienic and Easy to Maintain
The smooth, non-porous surface of stainless steel prevents bacterial growth and makes cleaning quick and effective. It withstands frequent washdowns with detergents, sanitizers, and high-pressure steam without surface degradation.
Industry Applications of Threaded Pipe Fittings Stainless Steel
Oil and Gas Industry
In the oil and gas sector, operational conditions are often extreme—characterized by high pressures, elevated temperatures, and exposure to corrosive substances such as hydrogen sulfide and crude oil byproducts. Stainless steel threaded pipe fittings are extensively used in onshore and offshore drilling rigs, pipeline networks, wellhead equipment, and refining systems due to their ability to maintain structural integrity under these harsh conditions.
Chemical Processing Plants
Chemical manufacturing involves the handling of highly reactive and corrosive substances, including sulfuric acid, hydrochloric acid, caustic soda, and various solvents. Stainless steel threaded pipe fittings—particularly those made from grades like 316 or 316L—are widely used in reactors, heat exchangers, distillation columns, and storage tank interconnections because of their superior resistance to chemical attack.
Water Treatment Facilities
Water and wastewater treatment plants face constant challenges from moisture, fluctuating pH levels, and chemical disinfectants like chlorine and ozone. Stainless steel threaded pipe fittings offer excellent resistance to both freshwater and saline environments, making them ideal for use in potable water distribution systems, sewage pumping stations, reverse osmosis units, and desalination plants.
Marine Applications
The marine environment is one of the most corrosive due to constant exposure to saltwater, humidity, and atmospheric chlorides. Stainless steel threaded pipe fittings are a preferred choice for shipbuilding, offshore platforms, docks, and coastal infrastructure because of their outstanding resistance to salt-induced corrosion.
Pharmaceutical Equipment
In pharmaceutical manufacturing, maintaining sterility, cleanliness, and material compatibility is non-negotiable. Stainless steel threaded pipe fittings—especially electropolished or sanitary-grade variants—are widely used in the construction of process piping, bioreactors, filtration systems, and filling lines for vaccines, injectables, and active pharmaceutical ingredients (APIs).
Elbows
Elbows change the direction of a pipeline.
Common angles: 90° and 45°
Ideal for navigating obstacles or redirecting flow
Tees
Tees connect three pipes, allowing junctions or flow splitting.
Available in equal and unequal sizes for flexibility
Couplings
Couplings connect two pipes of the same or different diameters.
Often used for repairs or extending pipelines
Unions
Unions allow temporary connections, making disconnection and reconnection easy.
Ideal for systems requiring frequent maintenance
Plugs and Caps
Plugs: Inserted into the pipe interior
Caps: Cover the outer diameter
Both prevent leaks and ensure secure sealing
Bushings
Bushings reduce the fitting size to connect pipes of different diameters.
Useful where frequent size changes are required
Nipples
Short pipe segments with male threading on both ends.
Connect fittings or extend piping systems in tight spaces
Detailed Dimension Table
|
Nominal Size |
Total Length (L) |
Male Thread (G) |
Hex Across Flats (S) |
Hose Barb OD (D) |
|
1/8" |
28 mm |
G1/8" |
14 mm |
10 mm |
|
1/4" |
30 mm |
G1/4" |
17 mm |
12 mm |
|
3/8" |
32 mm |
G3/8" |
19 mm |
14 mm |
|
1/2" |
35 mm |
G1/2" |
22 mm |
16.5 mm |
|
3/4" |
40 mm |
G3/4" |
27 mm |
20 mm |
|
1" |
46 mm |
G1" |
34 mm |
25.5 mm |
|
1-1/4" |
50 mm |
G1-1/4" |
41 mm |
31 mm |
|
1-1/2" |
54 mm |
G1-1/2" |
47 mm |
36 mm |
|
2" |
60 mm |
G2" |
55 mm |
45 mm |
Chemical Composition
|
CHEMICAL |
LIMITS |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
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 F44 |
MIN |
17.50 |
19.50 |
6.00 |
0.50 |
||||||
|
MAX |
0.02 |
1.00 |
0.030 |
0.010 |
0.80 |
18.50 |
20.50 |
6.50 |
1.00 |
||
|
ASTM A182 F51 |
MIN |
4.50 |
21.00 |
2.50 |
0.08 |
||||||
|
MAX |
0.03 |
2.00 |
0.030 |
0.020 |
1.00 |
6.50 |
23.00 |
3.50 |
0.20 |
||
|
ASTM A182 F53 |
MIN |
6.00 |
24.00 |
3.00 |
0.24 |
||||||
|
MAX |
0.03 |
1.20 |
0.035 |
0.020 |
0.80 |
8.00 |
26.00 |
5.00 |
0.32 |
0.5 |
Ordering Process
Please tell us the model with quantity and other requirement which you needed.
We issue the Proforma Invoice to you after confirmed the price and other details.
We arrange the order production upon receipt of confirmed PI and your deposit.
After the goods is ready, we will inform you the shipment date and other informations by email at the same time.
Packaging & Delivery
| Package Size | 4.00cm * 2.00cm * 2.00cm |
| Package Gross Weight | 3.000kg |
| Lead Time |
10 days (1 - 10 Pieces) 15 days (11 - 50 Pieces) 25 days (51 - 100 Pieces) To be negotiated ( > 100 Pieces) |
FAQ
We're well-known as one of the leading stainless steel threaded pipe fittings manufacturers and suppliers in China, featured by quality products and good service. Please rest assured to buy customized stainless steel threaded pipe fittings from our factory. For quotation, contact us now.
stainless steel npt pipe fittings, close nipple stainless steel, 304 stainless steel threaded pipe fitting