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Girgaon, Mumbai - 400004
Duplex Steel UNS S32750 Seamless Tubes Manufacturer in India
What Are Super Duplex Steel UNS S32750 Seamless Tubes?
Super Duplex Steel UNS S32750 Seamless Tubes are tubular products manufactured from a super duplex stainless steel grade containing a balanced austenitic and ferritic microstructure. UNS S32750, commonly known as Super Duplex 2507, offers a combination of very high mechanical strength, excellent corrosion resistance, good toughness and strong resistance to chloride-induced stress corrosion cracking.
Super Duplex Steel UNS S32750 Seamless Tubes are known for their excellent resistance to pitting and crevice corrosion, high strength-to-weight ratio, good chloride resistance and reliable performance in aggressive environments. Their seamless construction provides a continuous tubular structure without a longitudinal weld, making them suitable for demanding pressure, process and heat-transfer applications.
These seamless tubes are used in oil and gas equipment, offshore systems, chemical processing plants, marine equipment, desalination plants, heat exchangers, power generation and wastewater treatment systems. The grade, outside diameter, wall thickness, schedule, length and finish are selected according to operating conditions and applicable material specifications.
Kamal Steels is a reliable Super Duplex Steel UNS S32750 Seamless Tubes Manufacturer and Stockist in India, supplying seamless tubes in different sizes, wall thicknesses, schedules, lengths and finishes according to customer and project requirements. We also cater to international requirements with suitable export packaging, MTC and documentation.
Table of Contents
- Super Duplex Steel UNS S32750 Seamless Tube Specifications
- Super Duplex Steel UNS S32750 Seamless Tube Size Chart
- Super Duplex Steel UNS S32750 Seamless Tube Weight Chart
- Super Duplex Steel UNS S32750 Seamless Tube Standards
- Super Duplex Steel UNS S32750 Seamless Tube Features
- Super Duplex Steel UNS S32750 Chemical Composition
- Super Duplex Steel UNS S32750 Mechanical Properties
- Super Duplex Steel UNS S32750 Equivalent Grades
- UNS S32750 Seamless Tubes vs Duplex Steel UNS S32205 Seamless Tubes
- Super Duplex Steel UNS S32750 Seamless Tube Applications
- Industries Using UNS S32750 Seamless Tubes
- Frequently Asked Questions
Super Duplex Steel UNS S32750 Seamless Tube Specifications
Super Duplex Steel UNS S32750 Seamless Tubes are supplied in different dimensions and product conditions according to applicable ASTM, ASME and international standards. Custom sizes and lengths can be supplied according to project requirements.
| Specification | UNS S32750 Seamless Tubes |
|---|---|
| Material | Super Duplex Stainless Steel |
| Grade | UNS S32750 |
| Common Name | Super Duplex 2507 |
| Tube Type | Seamless |
| ASTM Standard | ASTM A789 |
| ASME Standard | ASME SA789 |
| Outside Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Schedule | As required |
| Length | Random, Fixed or Customized |
| Finish | Pickled, Annealed, Polished or As required |
Super Duplex Steel UNS S32750 Seamless Tube Size Chart
Super Duplex Steel UNS S32750 Seamless Tubes are available in various outside diameters and wall thicknesses for process, pressure, heat-transfer and industrial applications. Custom dimensions can also be supplied according to customer drawings and requirements.
| Tube Size | Outside Diameter (mm) | Wall Thickness | Length |
|---|---|---|---|
| 1/2" | 12.70 | As required | As required |
| 3/4" | 19.05 | As required | As required |
| 1" | 25.40 | As required | As required |
| 1-1/2" | 38.10 | As required | As required |
| 2" | 50.80 | As required | As required |
| 3" | 76.20 | As required | As required |
| 4" | 101.60 | As required | As required |
| 6" | 152.40 | As required | As required |
| 8" | 203.20 | As required | As required |
Super Duplex Steel UNS S32750 Seamless Tube Weight Chart
The weight of Super Duplex Steel UNS S32750 Seamless Tubes depends on outside diameter, wall thickness and length. The following values are approximate theoretical references, and actual weight may vary according to dimensions and manufacturing tolerances.
| Outside Diameter (mm) | Wall Thickness (mm) | Inside Diameter (mm) | Approx. Weight (kg/m) |
|---|---|---|---|
| 12.70 | 1.00 | 10.70 | 0.35 |
| 19.05 | 1.50 | 16.05 | 0.83 |
| 25.40 | 2.00 | 21.40 | 1.51 |
| 31.75 | 2.50 | 26.75 | 2.38 |
| 38.10 | 3.00 | 32.10 | 3.35 |
| 50.80 | 3.00 | 44.80 | 4.65 |
| 63.50 | 3.00 | 57.50 | 5.94 |
| 76.20 | 4.00 | 68.20 | 9.49 |
| 101.60 | 5.00 | 91.60 | 15.43 |
Note: Weight values are approximate theoretical references. Final weight should be verified against actual dimensions and material test documentation.
Super Duplex Steel UNS S32750 Seamless Tube Standards
Super Duplex Steel UNS S32750 Seamless Tubes can be supplied according to applicable ASTM, ASME and other international standards depending on product dimensions, application and customer requirements.
| Standard / Designation | Details |
|---|---|
| UNS | S32750 |
| Common Name | Super Duplex 2507 |
| ASTM | ASTM A789 |
| ASME | ASME SA789 |
| Product Form | Seamless Tube |
Super Duplex Steel UNS S32750 Seamless Tube Features
UNS S32750 is selected for demanding applications where very high strength and excellent resistance to aggressive corrosive environments are required.
- Very high mechanical strength
- Excellent resistance to pitting corrosion
- Excellent resistance to crevice corrosion
- Strong resistance to chloride-induced stress corrosion cracking
- High strength-to-weight ratio
- Good toughness and durability
- Excellent resistance to general corrosion
- Good resistance in seawater environments
- Suitable for aggressive process applications
- Seamless construction without a longitudinal weld
Super Duplex Steel UNS S32750 Chemical Composition
The chemical composition of UNS S32750 contains controlled levels of chromium, nickel, molybdenum and nitrogen. The alloying balance contributes to its high strength and excellent resistance to localized and chloride-related corrosion.
| Element | Composition (%) |
|---|---|
| Chromium | 24.0 - 26.0 |
| Nickel | 6.0 - 8.0 |
| Molybdenum | 3.0 - 5.0 |
| Nitrogen | 0.24 - 0.32 |
| Carbon | 0.030 max. |
| Manganese | 1.20 max. |
| Silicon | 0.80 max. |
| Phosphorus | 0.035 max. |
| Sulfur | 0.020 max. |
| Iron | Balance |
Super Duplex Steel UNS S32750 Mechanical Properties
UNS S32750 provides very high tensile and yield strength together with good elongation and toughness. Actual mechanical properties depend on product dimensions, heat treatment, manufacturing condition and applicable material specification.
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 795 MPa min. |
| Yield Strength | 550 MPa min. |
| Elongation | 15% min. |
| Density | Approx. 7.8 g/cm³ |
Note: Mechanical requirements can vary according to product form, dimensions and applicable specification. Certified material test reports should be used for final verification.
Super Duplex Steel UNS S32750 Equivalent Grades
| Designation | Equivalent / Related Grade |
|---|---|
| UNS | S32750 |
| Common Name | Super Duplex 2507 |
| EN Material Number | 1.4410 |
| EN Grade | X2CrNiMoN25-7-4 |
UNS S32750 Seamless Tubes vs Duplex Steel UNS S32205 Seamless Tubes
UNS S32750 and UNS S32205 are both duplex stainless steel grades, but UNS S32750 is a super duplex grade developed for more aggressive environments. It generally provides higher alloy content, greater resistance to localized corrosion and higher minimum strength than UNS S32205.
| Property | UNS S32750 | UNS S32205 |
|---|---|---|
| Material Type | Super Duplex Stainless Steel | Duplex Stainless Steel |
| Common Name | Super Duplex 2507 | Duplex 2205 |
| Corrosion Resistance | Excellent | Excellent |
| Strength | Very High | High |
| Typical Service | Aggressive and highly corrosive environments | Demanding industrial environments |
Super Duplex Steel UNS S32750 Seamless Tube Applications
Super Duplex Steel UNS S32750 Seamless Tubes are used in applications requiring very high strength and excellent resistance to aggressive chloride-containing and corrosive environments.
Oil & Gas
Used in offshore equipment, process systems, production equipment and tubular components exposed to demanding oil and gas environments.
Offshore & Marine
Used in seawater systems and offshore equipment requiring excellent resistance to chloride-related corrosion.
Chemical Processing
Used in chemical processing equipment exposed to aggressive chemicals and corrosive process conditions.
Desalination
Used in desalination and seawater treatment equipment operating in chloride-rich environments.
Heat Exchangers
Used in heat-transfer systems requiring high strength and excellent corrosion resistance.
Petrochemical Plants
Used in process equipment and piping systems requiring durable performance in aggressive environments.
Industries Using Super Duplex Steel UNS S32750 Seamless Tubes
Kamal Steels supplies Super Duplex Steel UNS S32750 Seamless Tubes to industries requiring high-strength and corrosion-resistant tubular products for demanding operating conditions.
Oil & Gas Industry
Used in upstream, midstream and downstream equipment where high strength and corrosion resistance are essential.
Marine Industry
Used in marine and seawater systems exposed to chloride-rich environments.
Chemical Industry
Used in chemical processing equipment requiring excellent resistance to aggressive corrosive media.
Petrochemical Industry
Used in process equipment and tubular systems operating under demanding chemical conditions.
Power Generation Industry
Used in selected cooling, process and auxiliary systems requiring high-performance corrosion-resistant tubing.
Water Treatment Industry
Used in desalination, seawater treatment and wastewater systems requiring high corrosion resistance.
Frequently Asked Questions
Super Duplex Steel UNS S32750 Seamless Tubes are high-performance stainless steel tubes manufactured without welded joints. They offer exceptional corrosion resistance, outstanding mechanical strength, and excellent performance in high-pressure and highly corrosive environments.
Our Super Duplex Steel UNS S32750 Seamless Tubes are manufactured according to ASTM A789, ASTM A790, ASME SA789, and ASME SA790 standards.
These seamless tubes provide exceptional resistance to pitting, crevice corrosion, chloride stress corrosion cracking, seawater corrosion, very high mechanical strength, superior pressure resistance, and extended service life.
They are widely used in offshore oil & gas platforms, subsea pipeline systems, marine engineering, desalination plants, chemical processing facilities, heat exchangers, pressure vessels, and power generation industries.
Their seamless construction eliminates weld-related defects while providing exceptional structural integrity, superior pressure-handling capability, outstanding corrosion resistance, and maximum reliability in harsh operating conditions.
Each tube undergoes PMI Testing, Chemical Analysis, Mechanical Testing, Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing (ECT), Dimensional Inspection, Surface Inspection, and Visual Inspection.
Yes. Super Duplex Steel UNS S32750 offers outstanding resistance to seawater corrosion, chloride-induced pitting, crevice corrosion, and stress corrosion cracking, making it one of the best materials for offshore and marine applications.
Yes. Every shipment includes EN 10204 3.1/3.2 Mill Test Certificates, inspection reports, complete material traceability, and third-party inspection certificates upon request.
Yes. Kamal Steels exports Super Duplex Steel UNS S32750 Seamless Tubes worldwide with export-standard packaging, complete documentation, and timely international delivery.
Kamal Steels offers ASTM-compliant Super Duplex Steel UNS S32750 Seamless Tubes with ready stock, certified quality, competitive pricing, stringent quality control, export-standard packaging, complete documentation, and dependable worldwide delivery for critical industrial applications.