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Super Duplex Steel S32750 Pipe & Tube is a high-performance stainless steel alloy known for its exceptional corrosion resistance and superior mechanical properties. Combining the strength of duplex stainless steel with enhanced resistance to chloride stress corrosion, S32750 pipes and tubes are ideal for harsh industrial environments. Sumer Metal Industries manufactures and supplies these premium-quality products to clients across the UAE, Saudi Arabia, Kuwait, Qatar, Bahrain, and Oman.
S32750 Super Duplex Steel Pipes & Tubes offer a unique combination of high tensile strength, toughness, and resistance to pitting, crevice, and stress corrosion. These properties make them suitable for demanding applications in chemical processing, oil and gas industries, desalination plants, and marine environments. The alloy’s superior durability ensures long-term reliability and reduces maintenance costs for industrial systems.
Super Duplex Steel S32750 pipes and tubes are high-performance stainless steel alloys designed for demanding industrial environments. Known for their superior corrosion resistance and high mechanical strength, these materials are extensively used in chemical processing, petrochemical, offshore oil and gas, and marine industries. They excel in applications involving aggressive chloride-containing media and high-pressure conditions.
S32750 is composed of approximately 25–26% chromium, 6–7% nickel, 3–4% molybdenum, and 0.2–0.3% nitrogen. This chemical composition ensures excellent resistance to pitting, crevice corrosion, and stress corrosion cracking while providing superior mechanical strength, making it ideal for harsh industrial and marine environments.
Our S32750 pipes and tubes are widely used in a variety of industrial sectors, including offshore oil rigs, petrochemical refineries, heat exchangers, and seawater equipment. Their resistance to chloride attack and high strength-to-weight ratio make them perfect for both onshore and offshore projects. Engineers and designers prefer Super Duplex Steel S32750 for pipelines and structures exposed to aggressive chemical and marine conditions.
Sumer Metal Industries ensures that every S32750 Super Duplex Steel Pipe & Tube meets international standards such as ASTM A790 and EN 10222. Using advanced manufacturing techniques and stringent quality checks, we provide pipes and tubes with precise dimensions, superior surface finish, and consistent performance. Our commitment to quality ensures reliability in even the most challenging industrial applications.
S32750 pipes and tubes offer outstanding mechanical performance, with tensile strength ranging from 800–950 MPa and yield strength of 550–750 MPa. Elongation typically ranges between 20–25%, providing a balance of toughness and ductility. These properties enable the tubes to withstand high-pressure and high-stress industrial applications.
Super Duplex S32750 exhibits exceptional resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion. This makes it ideal for use in seawater, chemical processing systems, desalination plants, and other environments where aggressive media and high temperatures are present.
Specification Table
| Property | Specification / Standard | Details |
|---|---|---|
| Material Grade | ASTM / UNS | S32750 / UNS S32750 |
| Type | Steel Type | Super Duplex Stainless Steel |
| Standards | ASTM / EN / ISO | ASTM A790, ASTM A789, EN 10222 |
| Pipe/Tube Forms | Available Types | Seamless, Welded, ERW, Fabricated Tubes |
| Dimensions | Outer Diameter & Thickness | Customizable as per project requirements |
| Surface Finish | Finish Type | Mill Finish, Polished, Pickled & Passivated |
| Application | Industrial Use | Chemical, Oil & Gas, Desalination, Marine, Petrochemical |
| Corrosion Resistance | Type | Pitting, Crevice, Stress Corrosion, Chloride Resistance |
| Mechanical Properties | Typical | High Strength, Toughness, Excellent Weldability |
Chemical Composition (Typical ranges for SSS32750)
Note: Values are typical ranges. Final composition will be confirmed on MTC provided per lot.
| Element | Percentage (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Nitrogen (N) | 0.24 – 0.32 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.010 |
| Iron (Fe) | Balance |
Mechanical Properties (Typical)
| Property | Typical Value | Unit |
|---|---|---|
| Yield Strength (0.2% offset) | 520 – 650 | MPa |
| Tensile Strength | 830 – 1000 | MPa |
| Elongation (in 50 mm) | 25 – 35 | % |
| Hardness (Brinell) | ≤ 290 | HB |
| Impact Toughness (Charpy V-notch) | ≥ 150 | J at -46°C |
| Modulus of Elasticity | 200 | GPa |
| Density | 7.8 | g/cm³ |
Equivalent Grades
| Standard | Grade / Equivalent |
|---|---|
| UNS | S32750 |
| AISI / ASTM | ASTM A789, ASTM A790 (S32750) |
| EN / DIN | 1.4501 / X2CrNiMoCuN25-7-4 |
| BS | BS 32750 |
| JIS | SUS32750 |
| ISO | ISO 17781 / S32750 |
Dimension & Weight Chart (Selected common sizes)
Below is a representative chart showing outside diameter, wall thickness, inside diameter, cross-sectional area of metal and calculated weight per metre (kg/m). Values are calculated using density = 7.93 g/cm³ and are for guidance — use actual MTC values for procurement & engineering.
| Outer Diameter (OD) | Wall Thickness | Schedule / Standard | Weight per Meter | Unit |
|---|---|---|---|---|
| 15 mm | 2 mm | Sch 10 / Sch 40 | 0.60 | kg/m |
| 25 mm | 3 mm | Sch 10 / Sch 40 | 1.50 | kg/m |
| 50 mm | 4 mm | Sch 10 / Sch 40 | 4.00 | kg/m |
| 76.1 mm | 5 mm | Sch 10 / Sch 40 | 7.40 | kg/m |
| 101.6 mm | 6 mm | Sch 10 / Sch 40 | 12.00 | kg/m |
| 168.3 mm | 8 mm | Sch 10 / Sch 40 | 26.50 | kg/m |
| 219.1 mm | 10 mm | Sch 10 / Sch 40 | 42.00 | kg/m |
| 273.0 mm | 12 mm | Sch 10 / Sch 40 | 61.50 | kg/m |
| 323.9 mm | 12 mm | Sch 10 / Sch 40 | 74.00 | kg/m |
Types Of Super Duplex Steel S32750 Pipe & Tubes and Tubes
SS S32750 Seamless Pipe
SS S32750 Welded Pipe
SS S32750 ERW Pipe
SS S32750S EFW Pipe
Super Duplex Steel S32750S Seamless Tube
S32750H Super Duplex Steel Welded Tube
S32750 Super Duplex Steel Capillary Tube
S32750H Super Duplex Steel Heat Exchanger Tubes
Frequently Asked Questions (FAQ)
1. What is Super Duplex Steel S32750?
Super Duplex Steel S32750 is a high-performance stainless steel alloy combining austenitic and ferritic phases. It offers excellent corrosion resistance, high strength, and durability in harsh industrial environments.
2. What are the typical applications of S32750 pipes and tubes?
S32750 pipes and tubes are widely used in chemical processing, oil & gas, petrochemical, desalination, and marine industries due to their superior resistance to pitting, crevice, and stress corrosion.
3. What standards and specifications do S32750 pipes follow?
Super Duplex S32750 pipes and tubes are manufactured according to ASTM A790 / A789, EN 10222, and other international standards to ensure quality, consistency, and performance.
Pipes & Tubes Supplier
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