316 stainless steel pipe fittings is the use of AISI 316 austenitic stainless steel manufactured connections for stainless steel piping between the connection, steering, reducer or closed and other roles. 316 steel because of its added 2-3% of molybdenum (Mo), compared with 304 stainless steel has a stronger resistance to corrosion, pitting resistance and chemical corrosion resistance, especially suitable for marine environment, Chemical equipment and high temperature and pressure occasions. Stainless steel 304 pipe fittings include stainless steel butt weld fittings, socket weld fittings and threaded fittings. Stainless steel pipe fittings are widely used in the production of various equipments and parts due to their excellent corrosion resistance and formability.
ZIZI specialize in selling all kinds of stainless steel pipe fittings, steel pipes, steel plates, flanges, bolts and nuts, and our products are widely used in many fields, from precision machinery manufacturing to warm home decoration and even high-end aerospace industry. We have become a trusted choice for many industries due to our superior product quality and wide range of applications. Not only do we offer a wide range of products, but we can also provide customized processing services according to the specific needs of our customers, ensuring that your expectations are accurately met every time we work together. With advanced production equipment and strict quality management system, we are committed to providing high-quality piping solutions to customers worldwide. Welcome to contact us.
316 Stainless Steel Butt Weld Fittings
316 Stainless Steel Butt Weld Fittings are made of stainless steel and are connected to stainless steel piping by welding. These fittings include elbows, tees, crosses, reducers, and other types that are used to change the direction of a pipe, branch, or connect pipes of different diameters.
To connect pipes, the welded portion of the fitting is aligned with the end of the pipe, and then the welding process is utilized to fuse the metal materials of the two together to form a strong connection. This welded connection method ensures that the piping system is airtight and strong, allowing it to withstand higher pressures and temperatures.
ASTM A403 WP316 Pipe Fittings Specification
| Size Range | 1/2″ – 80″ / DN15 – 2000 |
| Thickness Schedule | SCH 10, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS |
| Standard | ANSI / ASME B16.9, MSS SP 43 |
| Stainless Steel Grades | ASTM A403 WP304/304L/304H, 316/316L, 310S, 317, 347, 904L |
316 Stainless Steel Pipe Fittings Chemical Composition
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | Mo |
| ASTM A403 WP316 | MIN | 10.0 | 16.0 | 2.00 | |||||
| MAX | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 14.0 | 18.0 | 3.00 | |
| ASTM A403 WP316L | MIN | 10.00 | 16.00 | ||||||
| MAX | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 14.00 | 18.00 |
Mechanical Properties of 316 Butt Weld Fittings
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % |
| ASTM A403 WP316 | 515 min | 205 min | 28 min |
| ASTM A403 WP316L | 485 min | 170 min | 28 min |
ASTM A403 WP316 Fittings Available Types
Butt Weld 90 Degree Elbow
Butt Weld 45 Degree Elbow
Butt Weld Bend
Butt Weld Tee
Butt Weld Cross
Butt Weld Concentric Reducer
Butt Weld Eccentric Reducer
Butt Weld Cap
Features and Benefits
Smooth internal flow path: Butt welded connections create a smooth internal wall, which reduces fluid resistance and lowers pressure drop.
High strength and pressure resistance: Butt-welded connection is a permanent connection with high connection strength and sealing, suitable for high pressure and high temperature working conditions.
Wide range of applications: Suitable for piping systems of all sizes and pressures.
Reduced risk of leakage: Due to the permanent connection, the risk of leakage of butt-welded fittings is much lower than that of threaded or flanged connections.
316 Stainless Steel Forged Fittings
316 Stainless steel forged fittings refers to the use of stainless steel materials, through the forging process into a specific shape and size of the pipe fittings. The forging process can refine the grain and eliminate internal defects, thus significantly improving the mechanical properties of the material. During the forging process, the metal billet under pressure undergoes plastic deformation, making its internal organization more dense, thus improving the strength and performance of the pipe fittings.
ASTM A182 F316 Specification
| Standard | ASME B16.11 |
| Size Range | 1/8″ to 4″ |
| Pressure Rating | Class 2000LBS,3000LBS, 6000Lbs, 9000lbs. |
| Alloy Steel | ASTM A182 F11 / 12 / 22 / 5 / 9 / 91 / 92 / 22 |
| Stainless Steel | ASTM A182 F304 / 304L / 304H, 316 / 316L, 321, 310S, 317, 347, 904L |
Stainless Steel 316 Forged Fittings Chemical Composition
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | Mo | N |
| 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 | 0.10 | |
| ASTM A182 F316L | MIN | 10.00 | 16.0 | 2.00 | ||||||
| MAX | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 15.00 | 18.0 | 3.00 | 0.10 |
Mechanical Properties of F316 Stainless Steel Forged Fittings
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % | R/A % |
| ASTM A182 F316 | 515 min | 205 min | 30 min | 50 min |
| ASTM A182 F316L | 485 min | 170 min | 30 min | 50 min |
Socket Weld Pipe Fittings Types
Threaded Pipe Fittings Types
Features and Advantages
Excellent mechanical properties: The forging process can significantly improve the strength, toughness, fatigue strength and impact toughness of pipe fittings, enabling them to withstand higher pressures and harsher working conditions.
Dense structure, no defects: During the forging process, the pores, looseness and other defects inside the material are compacted and eliminated, and the grains are refined and uniform, thereby improving corrosion resistance and overall reliability.
Suitable for high-pressure and high-temperature applications: Due to their excellent strength and reliability, forged pipe fittings are often used in working conditions with extremely high safety and performance requirements.
High dimensional accuracy: Through precision die forging, high dimensional accuracy can be obtained.
How to choose?
Butt-welded pipe fittings are more suitable for pipeline systems that require continuous, large-diameter, high-pressure, and smooth fluid delivery, especially main pipeline connections.
Forged fittings (such as socket weld fittings and threaded fittings) are more suitable for small-diameter, high-pressure, high-vibration branch pipes, instrument interfaces, and connection points that require frequent disassembly or adjustment, which require extremely high connection strength and sealing. Forged pipe fittings are usually preferred in situations that require extreme performance and reliability.
Application Industries
Oil & Gas Pipeline Systems
Chemical and petrochemical plants
Food and Pharmaceutical Process Piping
Marine & Offshore
Heat Exchangers & Pressure Vessels
Water Treatment & Pure Water Systems
Semiconductor and High Cleanliness Systems
You can get an offer for products in below material forms:
-Pipe and Tube (EN 10216-5, ASTM A213, ASTM A249, A312, A790,)
-Forged Fitting and Flange (ASTM A182 , ASTM A105,ASTM B564 )
-Butt Weld Fittings (ASTM A234, ASTM A403,ASTM A815)
-Round bar , Billet (ASTM A276, ASTM A479)
– Plate, Sheet, Strip(ASTM A240, EN 10028-7, A480)
-Bolting, Nuts（ASTM A193, A194, A320）
316 Stainless Steel Pipe Fittings Exported Countries
We Export 316 Stainless Steel Pipe Fittings to Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Cambodia, Argentina, Bolivia, Brazil, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Jamaica, Bahamas, Denmark, Norway, Germany, France,Italy, United Kingdom, Spain, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Finland, Ireland, Croatia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Europe, Africa, Asia, North America, South America, Middle East.etc