Super Duplex Steel UNS S32750 Forged Fittings Manufacturer & Supplier
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Benefits of Super Duplex 2507 (S32750) Forged Fittings
Key Advantages:
- Excellent resistance to pitting and crevice corrosion in chloride-rich environments
- High tensile and yield strength ideal for critical pressure systems
- Superior resistance to stress corrosion cracking and erosion fatigue
- Good weldability using conventional welding methods and filler metals
- Longer service life reduces replacement frequency and downtime
- Cost-effective performance due to reduced maintenance requirements
- Stable mechanical properties at elevated temperatures and pressures
- Versatility across industries from marine to petrochemicals
Specification of Super Duplex Steel UNS S32750 Forged Fittings

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 Super Duplex Steel UNS S32750 Forged Fittings
Manufacturing Types
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Threaded Forged FittingsDesigned with internal or external threads, these fittings allow quick assembly and disassembly without welding.
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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.
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Screwed FittingsSimilar to threaded types, screwed fittings are connected using screw threads, making installation simple and cost-effective.
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BSPTBushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
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NPTEnd caps are used to seal a pipeline's end, shielding it from impurities and guaranteeing closed systems' safety.
Forms
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Forged ElbowElbows, which come in 45° and 90° varieties shift the direction of flow with little pressure loss.
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Forged BushingBushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
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Forged TeeUsed to split or combine flow across three directions essential for branching pipeline.
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Forged CouplingOffer a safe connection between two pipes; threaded and socket-welded options are available.
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Forged PlugClose open pipe ends which are frequently used for isolation or testing.
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Forged CrossWith four openings, cross fittings help connect four pipes used when fluid distribution needs to occur in multiple directions.
Fittings Needs
Contact us today to discuss how Super Duplex Steel UNS S32750 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
| Element | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Super Duplex Steel S32750 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex 2507 | 1.4410 | S32750 |
Duplex & Super Duplex Steel Forged Fittings Grades We Offer
Super Duplex Steel UNS S32750 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 | ||||||||||||
Super Duplex Steel UNS S32750 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 |
Super Duplex Steel UNS S32750 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 Process of Super Duplex Steel UNS S32750 Forged Fittings
Raw Material

Cutting

Sizing

Heat Treatment

Pickling

Beveling

Polishing

Sand Blasting

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping
Applications of ASME B16.11 Super Duplex 2507 Fittings
Why Choose Midland Alloys Inc. for ASTM A182 S32750 Forged Fittings?
FAQs – Super Duplex Steel UNS S32750 Forged Fittings
Compared to Duplex 2205, Super Duplex 2507 is stronger and more resistant to corrosion cracking and chloride stress.
Yes, S32750’s high chromium and molybdenum content makes them perfect for offshore and marine applications and extremely resistant to seawater corrosion.
These fittings typically conform to Class 3000, 6000, and 9000 pressure ratings, depending on configuration and thickness.
Size, type (welded or seamless), and quantity all affect price. Contact us for updated per kg pricing.
Yes, we specialize in project-specific export orders, including seamless forged components for offshore and subsea installations.



