Premium Stainless Steel 316/316L/316Ti Forged Pipe Fittings by Ratnadeep Steel & Engg. Co.
Ratnadeep Steel & Engg. Co. is a leading manufacturer, exporter, and supplier of premium-quality Stainless Steel 316 / 316L / 316Ti Forged Pipe Fittings. These fittings are manufactured from molybdenum-bearing austenitic stainless steels using advanced forging and precision machining techniques to ensure high mechanical strength, accurate dimensions, and extended service life. Our SS 316, 316L, and 316Ti forged fittings are widely used in highly corrosive and demanding operating environments.
Stainless Steel 316, 316L, and 316Ti grades are well known for their superior resistance to pitting, crevice corrosion, and chemical attack, particularly in chloride-rich and acidic environments. The low-carbon 316L grade minimizes the risk of intergranular corrosion after welding, while titanium-stabilized 316Ti maintains strength and corrosion resistance at elevated temperatures. Forged construction further improves pressure-handling capability and structural reliability.
These forged fittings ensure a smooth and continuous internal flow path, reducing turbulence and pressure loss while improving resistance to corrosion, erosion, and thermal stress. SS 316 / 316L / 316Ti forged pipe fittings are ideally suited for applications in chemical processing, petrochemicals, pharmaceuticals, marine systems, food processing, and heat exchangers operating under aggressive and high-temperature conditions.
- SS 316 / 316L / 316Ti Socket Weld & Threaded Elbow
- UNS S31600 / S31603 / S31635 Forged Elbow
- ASME SA 182 F316Ti 45° & 90° Elbow
- DIN 1.4571 Stainless Steel Forged Elbow
- ASTM A182 SS 316 Forged Equal Tee
- ASME SA182 SS 316L / 316Ti Socket Weld Tee
- DIN 1.4404 / 1.4435 Reducing Tee
- UNS S31635 Unequal & Threaded Tee
- ASTM A182 F316 Threaded Equal Cross
- ASME SA182 SS 316L Socket Weld Cross
- DIN 1.4401 / UNS S31600 Forged Cross
- SS 316Ti Reducing & Unequal Cross
- UNS S31600 Forged Full Coupling
- ASME SA 182 SS 316L Socket Weld Coupling
- ASTM A182 SS 316Ti Threaded Full Coupling
- DIN 1.4401 / 1.4436 Stainless Steel Coupling
- ASTM A182 F316Ti Socket Weld Half Coupling
- UNS S31600 / S31603 / S31635 Half Coupling
- ANSI B16.11 SS 316 Threaded Half Coupling
- UNS S31600 Forged Pipe End Cap
- ASTM A182 F316 Socket Weld Pipe Cap
- ASME SA 182 SS 316Ti Forged End Cap
- Stainless Steel 316 Threaded Pipe Cap
- UNS S31600 Socket Weld Forged Union
- ASTM A182 F316 Threaded Union
- ASME SA 182 SS 316Ti Forged Union
- ANSI Stainless Steel 316 Union
- UNS S31600 Forged Threaded Bushing
- ANSI B16.36 SS 316 Hex Head Bushing
- ASTM A182 F316 Stainless Steel Bushing
- ASME SA 182 SS 316Ti Forged Bushing
- UNS S31600 Threaded & Socket Weld Nipple
- ASTM A182 F316 Swage & Pipe Nipple
- ASME SA 182 SS 316Ti Hex Nipple
- SS 316 / 316L / 316Ti Screwed Pipe Nipple
CHEMICAL COMPOSITION OF SS 316/316L/316TI FORGED PIPE FITTINGS
| Element | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 316 (S31600) | 0.08 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
| 316L (S31603) | 0.03 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
| 316Ti (S31635) | 0.08 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 16.0 – 18.0 | 2.00 – 3.00 | 10.0 – 14.0 | 0.1 max |
MECHANICAL PROPERTIES OF ASME SA403 SS WP316 / 316L/ 316TI FORGED PIPE FITTINGS
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 316 | 75 | 30 | 40 | 217 | 95 |
| 316L | 70 | 25 | 40 | 217 | 95 |
| 316Ti | 515 MPa | 205 MPa | 35 | 205 | 75 |
SPECIFICATION OF STAINLESS STEEL 316/316L/316TI FORGED FITTINGS
| Specifications | ASTM A182 / ASME SA182 |
|---|---|
| Dimension Standard | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
| Size | 1/8″ NB to 4″ NB |
| Type | Socketweld Fittings, Screwed-Threaded Fittings (NPT or PT Type) |
| Rating Pressure | Threaded End – 2000 / 3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS. |
316/316L/316Ti STAINLESS STEEL ASTM A403 FORGED FITTINGS EQUIVALENT GRADES
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 316 | S31600 | 1.4401 / 1.4436 | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | SUS 316 | 316S31 / 316S33 | – |
| SS 316L | S31603 | 1.4404 / 1.4435 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 |
| SS 316Ti | S31635 | 1.4571 | Z6CNDT17-123 | X6CrNiMoTi17-12-2 | SUS 316Ti | 320S31 | 08Ch17N13M2T |
PHYSICAL PROPERTIES OF ASTM A403 STAINLESS STEEL 316/316L/316TI PIPE FITTINGS
| Density lbm/in³ | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10⁶) | Modulus of Elasticity (psi x 10⁶) | Coefficient of Thermal Expansion (in/in)/°F x 10⁶ | Specific Heat (BTU/lb/°F) | Melting Range (°F) |
|---|---|---|---|---|---|---|
| 0.29 at 68°F | 100.8 at 212°F | 29.1 at 68°F | 29 | 8.9 at 32 – 212°F 9.7 at 32 – 1000°F 11.1 at 32 – 1500°F |
0.108 at 68°F 0.116 at 200°F |
2500 to 2550 |
💡 Practical Difference in Use
Use Stainless Steel 316 / 316L / 316Ti Forged Pipe Fittings when: superior corrosion resistance, excellent performance in chloride-rich or acidic environments, and reliable pressure strength are required. → Example: chemical plants, marine systems, pharmaceutical facilities, food processing units, and offshore installations.
Applications of SS 316 / 316L / 316Ti Forged Pipe Fittings
Stainless Steel 316, 316L, and 316Ti Forged Pipe Fittings are engineered for aggressive corrosion resistance and long-term durability in harsh operating conditions.
- Chemical & Process Industries: Acid handling, corrosive fluid lines, and reactors.
- Marine & Offshore: Seawater piping and offshore processing systems.
- Pharmaceutical & Food Processing: Hygienic and sanitary pressure piping.
When to Choose SS 316 / 316L / 316Ti?
These grades are preferred for applications demanding resistance to pitting, crevice corrosion, and chemical attack along with strong forged construction.
Choose SS 316 / 316L / 316Ti when:
- Exposure to chlorides, acids, or marine conditions is expected
- Enhanced resistance to pitting and crevice corrosion is required
- Low-carbon 316L is needed for improved weldability
- Titanium-stabilized 316Ti is required for elevated temperatures
- Used in chemical plants, offshore units, and hygienic systems
Industries That Use SS 316 / 316L / 316Ti Forged Pipe Fittings
These forged fittings are widely used where corrosion resistance, cleanliness, and long service life are essential.
Designed for aggressive and corrosive environments.
Uses
Acid transfer lines, reactors, and process piping.
Why SS 316 / 316L / 316Ti?
Molybdenum content enhances corrosion resistance.
Ideal for continuous seawater exposure.
Uses
Seawater intake lines and offshore piping systems.
Why SS 316 / 316L / 316Ti?
Outstanding resistance to chlorides and marine corrosion.
Used in hygienic and contamination-free systems.
Uses
Sanitary pipelines, CIP systems, and sterile process lines.
Why SS 316 / 316L / 316Ti?
Excellent surface finish, corrosion resistance, and cleanliness.
Usage Guide for SS 316 / 316L / 316Ti Forged Pipe Fittings
Directional flow change with strong welded joints.
Choose Socket Weld Elbow when
- 45° or 90° direction change is required
- High-pressure or corrosive service is involved
- Leak-proof socket weld joints are critical
- Compact and durable connections are needed
Creates branch connections in corrosion-resistant piping systems.
Choose Tee when
- Flow must be split into branch lines
- Equal or reduced outlet sizes are required
- Threaded or socket-weld connections are used
- Used in chemical, marine, or hygienic systems
Four-way flow distribution in corrosive service piping.
Choose Cross when
- Flow must be split in multiple directions
- Compact threaded piping layouts are used
- Used in chemical or marine applications
- Strong, corrosion-resistant threaded joints are required
Joins two pipes of the same size in corrosive environments.
Choose Full Coupling when
- Pipe extension or repair is required
- Inline threaded connections are used
- High mechanical strength is needed
- Corrosion-resistant, leak-tight joints are essential
Single-end connection welded to equipment or piping.
Choose Half Coupling when
- Branch or instrument connections are required
- Used in chemical, pharma, or marine systems
- Strong and compact welded joints are needed
- Excellent corrosion resistance is critical
Seals the end of corrosion-resistant threaded pipelines.
Choose Cap when
- Pipe ends must be closed or isolated
- Used for pressure testing or future expansion
- Leak-proof termination is required
- Exposure to corrosive fluids or environments exists
Allows easy disconnection in corrosion-resistant piping systems.
Choose Union when
- Frequent maintenance or dismantling is required
- Leak-tight threaded joints are important
- Used in chemical, pharma, or marine services
- Corrosion resistance at joints is critical
Threaded size reduction in corrosive piping systems.
Choose Bushing when
- Pipe size reduction is required
- Space-saving threaded transitions are needed
- Used in chemical or marine pipelines
- Resistance to corrosion and crevice attack is essential
Short threaded connection for corrosion-resistant piping systems.
Choose Nipple when
- Joining two female-threaded components
- Compact pipe extensions are required
- Used in chemical, marine, or process lines
- High resistance to corrosion and pitting is essential
Our Forged Pipe Fittings are manufactured using advanced forging processes and undergo extensive quality checks to ensure flawless dimensional accuracy, durability, and long service life. Each fitting is thoroughly inspected using key NDT techniques such as radiographic testing (RT), ultrasonic testing (UT), hydrostatic testing, and visual/dimensional examination. We also perform detailed chemical composition analysis and mechanical property testing to ensure material compliance with strict industry standards.
Throughout the forging and finishing stages, every forged fitting is monitored closely to eliminate defects such as misalignment, surface irregularities, and wall-thickness variations. This ensures perfect joint integrity and high-performance reliability in pipelines carrying high temperatures, pressures, and corrosive media. All our forged fittings fully comply with ASME, ASTM, MSS-SP, and related global specifications, making them a preferred choice for critical piping systems worldwide.
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