Stainless Steel 316/316L Forged Fittings Manufacturer & Supplier
- Home
- Forged Fittings
- Stainless Steel 316/316L Forged Fittings
316 / 316L Stainless Steel Forged Fittings Overview
Benefits of 316/316L Stainless Steel Forged Fittings
- Strong defense against brine environments, acids and chlorides
- Molybdenum efficiently withstands reducing and oxidizing substances.
- Better intergranular protection and weldability are provided by 316L grade
- Works effectively in pharmaceutical, offshore and marine systems.
- Conforms to ASME B16.11 and ASTM A182 standards.
- Available in a variety of forms and pressure levels
- Good weight-to-strength ratio for systems under pressure
- Low carbon quality ideal for food-grade and hygienic welding
Specification of Stainless Steel 316/316L Forged fitting

Socketweld : 1/8" to 4" NB
Screwed-Threaded : 1/8" to 4" NB

ASTM A182/ASME SA182

ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799

Forge, Cast, Push, Press, etc.

2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS

Socketweld Fittings, Screwed-Threaded Fittings
Types of Stainless Steel 316/316L Forged Fittings
Manufacturing Types
-
Threaded Forged FittingsDesigned with internal or external threads, these fittings allow quick assembly and disassembly without welding.
-
Socket Weld Forged FittingsThese fittings are joined by inserting the pipe into a recessed area of the fitting and welding around it, ensuring strong, leak-proof joints.
-
Screwed FittingsSimilar to threaded types, screwed fittings are connected using screw threads, making installation simple and cost-effective.
-
BSPTBushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
-
NPTEnd caps are used to seal a pipeline's end, shielding it from impurities and guaranteeing closed systems' safety.
Forms
-
Forged ElbowElbows, which come in 45° and 90° varieties shift the direction of flow with little pressure loss.
-
Forged BushingBushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
-
Forged TeeUsed to split or combine flow across three directions essential for branching pipeline.
-
Forged CouplingOffer a safe connection between two pipes; threaded and socket-welded options are available.
-
Forged PlugClose open pipe ends which are frequently used for isolation or testing.
-
Forged CrossWith four openings, cross fittings help connect four pipes used when fluid distribution needs to occur in multiple directions.
Contact us today to discuss how Stainless Steel 316/316L Forged Fittings can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
Chemical composition is critical for corrosion resistance and durability. Chromium (16–18%), nickel (10–14%) and molybdenum (2–3%) make up SS 316/316L fittings. 316L has less carbon (<0.03%) to increase weldability and sensitization resistance.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 11.00 – 14.00 | 67.845 min |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 10.00 – 14.00 | 68.89 min |
Performance under pressure is guaranteed by mechanical strength. These fittings provide excellent tensile strength, yield strength and elongation, maintaining integrity in high pressure and thermal environments. 316L has better ductility and weld performance but somewhat less strength.
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Material compatibility is ensured in part by equivalent grades across international standards. Common equivalents include UNS S31600/S31603, EN 1.4401/1.4404 and JIS SUS 316/316L. These guarantee standardization and support for worldwide applications.
| STANDARD | UNS | JIS | WERKSTOFF NR. | GOST | EN | BS | AFNOR |
| SS 316 | S31600 | SUS 316 | 1.4401 / 1.4436 | – | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | 316S31 / 316S33 | Z7CND17‐11‐02 |
| SS 316L | S31603 | SUS 316L | 1.4404 / 1.4435 | 03Ch17N14M3 / 03Ch17N14M2 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | 316S11 / 316S13 | Z3CND17‐11‐02 / Z3CND18‐14‐03 |
Stainless Steel Forged Fittings Grades We Offer
Stainless Steel 316/316L Socket Weld Fittings Dimensions
| Nominal Size | Socket Bore Dia | Bore Dia of Fittings | Socket Wall Thickness | Body Wall | Depth of Socket | Center to Bottom of Socket | |||||||||||||||
| D N | NPS | B | D | C | Gmin | J min | A | ||||||||||||||
| 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | 90° Elbow Tee Cross | 45° Elbow | |||||||||||
| ave | min | ave | min | ave | min | 3000 | 6000 | 9000 | 3000 | 6000 | 9000 | ||||||||||
| 6 | 1/8 | 10.9 | 6.1 | 3.2 | 3.18 | 3.18 | 3.96 | 3.43 | 2.41 | 3.15 | 9.5 | 11.0 | 11.0 | 8 | 8 | ||||||
| 8 | 1/4 | 14.3 | 8.5 | 5.6 | 3.78 | 3.30 | 4.60 | 4.01 | 3.02 | 3.68 | 9.5 | 11.0 | 13.5 | 8 | 8 | ||||||
| 10 | 3/8 | 17.7 | 11.8 | 8.4 | 4.01 | 3.50 | 5.03 | 4.37 | 3.20 | 4.01 | 9.5 | 13.5 | 15.5 | 8.0 | 11.0 | ||||||
| 15 | 1/2 | 21.9 | 15.0 | 11 | 5.6 | 4.67 | 4.09 | 5.97 | 5.18 | 9.53 | 8.18 | 3.73 | 4.78 | 7.47 | 9.5 | 15.5 | 19.0 | 25.5 | 11 | 12.5 | 15.5 |
| 20 | 3/4 | 27.3 | 20.2 | 14.8 | 10.3 | 4.90 | 4.27 | 6.96 | 6.04 | 9.78 | 8.56 | 3.91 | 5.56 | 7.82 | 12.5 | 19.0 | 22.5 | 28.5 | 13 | 14 | 19 |
| 25 | 1 | 34 | 25.9 | 19.9 | 14.4 | 5.69 | 4.98 | 7.92 | 6.93 | 11.38 | 9.96 | 4.55 | 6.35 | 9.09 | 12.5 | 22.5 | 27.0 | 32.0 | 14.0 | 17.5 | 20.5 |
| 32 | 1-1/4 | 42.8 | 34.3 | 28.7 | 22.0 | 6.07 | 5.28 | 7.92 | 6.93 | 12.14 | 10.62 | 4.85 | 6.35 | 9.70 | 12.5 | 27.0 | 32.0 | 35.0 | 17.5 | 20.5 | 22.5 |
| 40 | 1-1/2 | 48.9 | 40.1 | 33.2 | 27.2 | 6.35 | 5.54 | 8.92 | 7.8 | 12.70 | 11.12 | 5.08 | 7.14 | 10.15 | 12.5 | 32.0 | 38.0 | 38.0 | 20.5 | 25.5 | 25.5 |
| 50 | 2 | 61.2 | 51.7 | 42.1 | 37.4 | 6.93 | 6.04 | 10.92 | 9.5 | 13.84 | 12.12 | 5.54 | 8.74 | 11.07 | 16.0 | 38.0 | 41.0 | 54.0 | 25.5 | 28.5 | 28.5 |
| 65 | 2-1/2 | 73.9 | 61.2 | 8.76 | 7.62 | 7.01 | 16.0 | 41.0 | 28.5 | ||||||||||||
| 80 | 3 | 89.9 | 76.4 | 9.52 | 8.30 | 7.62 | 16.0 | 57.0 | 32.0 | ||||||||||||
| 100 | 4 | 115.5 | 100.7 | 10.69 | 9.35 | 8.56 | 19.0 | 66.5 | 41.0 | ||||||||||||
Stainless Steel 316/316L Threaded Fittings Dimensions
| Nominal Size | Center-to-End | Outside Diameter of Band | Wall Thickness | Length of Thread | |||||||||||
| DN | NPS | A | H | G min | min | mim | |||||||||
| 90° Elbows, Tees, Crosses | 45° Elbows | ||||||||||||||
| 2000 | 3000 | 6000 | 2000 | 3000 | 6000 | 2000 | 3000 | 6000 | 2000 | 3000 | 6000 | ||||
| 6 8 10 | 1/8 1/4 3/8 | 21 21 25 | 21 25 28 | 25 28 33 | 17 17 19 | 17 19 22 | 19 22 25 | 22 22 25 | 22 25 33 | 25 33 38 | 3.18 3.18 3.18 | 3.18 3.30 3.51 | 6.35 6.60 6.98 | 6.4 8.1 9.1 | 6.7 10.2 10.4 |
| 15 20 25 | 1/2 3/4 1 | 28 33 38 | 33 38 44 | 38 44 51 | 22 25 28 | 25 28 33 | 28 33 35 | 33 38 46 | 38 46 56 | 46 56 62 | 3.18 3.18 3.68 | 4.09 4.32 4.98 | 8.15 8.53 9.93 | 10.9 12.7 14.7 | 13.6 13.9 17.3 |
| 32 40 50 | 1-1/4 1-1/2 2 | 44 51 60 | 51 60 64 | 60 64 83 | 33 35 43 | 35 43 44 | 43 44 52 | 56 62 75 | 62 75 84 | 84 102 | 3.89 4.01 4.27 | 5.28 5.56 7.14 | 10.59 11.07 12.09 | 17.0 17.8 19.0 | 18.0 18.4 19.2 |
| 65 80 100 | 2-1/2 3 4 | 76 86 106 | 83 95 114 | 95 106 114 | 52 64 79 | 52 64 79 | 64 79 79 | 92 109 146 | 102 121 152 | 121 146 152 | 5.61 5.99 6.55 | 7.65 8.84 11.18 | 15.29 16.64 18.67 | 23.6 25.9 27.7 | 28.9 30.5 33.0 |
Stainless Steel 316/316L Forged Fittings Tolerance Chart
| Minimal Diam. | Outer Dia. For Bevel End | Inner Dia. For End | Elbow | Tee | Reducer | Cap | 180° Elbow | |||||
| DN | NPS | A | B | C | M | H | E | O | K | Roughness | ||
| 500-600 | 20-24 | +6.4/-4.8 | 4.8 | 3.2 | 3.2 | 3.2 | 3.2 | 4.8 | 9.6 | – | – | – |
| 650-750 | 26-30 | |||||||||||
| 4.8 | 4.8 | 4.8 | 4.8 | |||||||||
| 800-1200 | 32-48 | |||||||||||
| 1250-1500 | 50-60 | +9.6/-6.4 | 6.4 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | – | |||
| 1550-1750 | 62-70 | +12.7/-9.6 | 9.6 | 12.7 | 12.7 | – | ||||||
| 1800-2000 | 72-80 | +16/-12 | 12 | 16 | 16 | |||||||
| 15-65 | 1/2-2 1/2 | +1.6/-0.8 | 0.8 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 3.2 | 6.4 | 6.4 | 0.8 |
| 80-100 | 3-4 | 1.6 | 1.6 | 6.4 | ||||||||
| 125-200 | 5-8 | +2.4/-1.6 | ||||||||||
| 250-450 | 10-18 | +4/-3.2 | 3.2 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 9.6 | |||
Manufacturing Standards of Stainless Steel 316/316L Forged Fittings
International standards like ASTM A182, ASME B16.11, ANSI B16.5, and MSS-SP-79/95 are followed during manufacturing to guarantee dimensional accuracy, quality, and pressure compatibility.
Raw Material

Cutting

Sizing

Heat Treatment

Pickling

Beveling

Polishing

Sand Blasting

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping
Applications of Stainless Steel 316/316L Forged Fittings
Midland Alloys manufactures all of its stainless steel 316/316L forged fittings in compliance with internationally accepted standards, including ANSI B16.5, MSS-SP-79/95, ASME B16.11 and ASTM A182. Our products are regularly certified under ISO 9001:2015 quality management systems and come with full EN 10204 3.1 mill test certificates, PMI reports, and third-party inspection documents when requested. Additionally, we follow the pressure equipment directives and export laws, such as AD 2000 W0, NACE MR0175, and PED 2014/68/EU. Before being shipped every fitting is subjected to dimensional, hydro and visual inspections to guarantee flawless delivery and worldwide compliance.
PMI (Positive Material Identification), UT (Ultrasonic), hydro and visual inspection techniques are used to test every fitting. Packaging includes wooden boxes, plastic wraps and export-standard labeling for safe transit and easy identification.
Resistance Capabilities
FAQs – SS 316/316L Forged Fittings
316/316L forged fittings are offered in Class 2000, 3000, 6000, and 9000. These classes determine their pressure-handling capabilities and are suitable for medium to high-pressure piping systems.
Each fitting undergoes PMI (Positive Material Identification), ultrasonic testing (UT), hydrostatic pressure testing, and detailed visual inspection to ensure material integrity and quality compliance.
Store fittings in a clean, dry environment away from corrosive agents. Keep them in labelled, sealed packaging or wooden crates to prevent damage, contamination, or mix-ups during handling and transportation.



