Products Description
Our Advantages
1. Corrosion Resistance
- Our pipes exhibit superior resistance to pitting corrosion, crevice corrosion, and chloride stress corrosion cracking, with a PREN >40%, making them suitable for seawater, marine, and chemical processing applications.
- Our pipes pass ASTM G48 pitting corrosion testing, intergranular corrosion testing, and salt spray testing, ensuring the corrosion resistance of UNS S32750 Pipe.
2. Weld Quality
- Our pipes utilize a fully automated TIG welding process, ensuring uniform weld formation and complete fusion. The welded pipes undergo standard solution annealing to restore corrosion resistance at the weld seams.
- The pipes undergo transverse tensile testing, flattening testing, and non-destructive testing to ensure the weld seams possess the same high strength properties as the pipe body.
3. High Strength
- UNS S32750 Pipe boasts high mechanical strength, more than twice that of 316/316L stainless steel, allowing for reduced wall thickness while maintaining the same pressure rating, thus lowering costs.
- Each batch of pipes undergoes tensile testing, hardness testing, and notched impact testing to ensure that each pipe is free from cracking during use.
4. Customization and Processing
- TORICH provides one-stop customization and processing services, reducing secondary processing costs for customers. Seamless and welded pipes can be customized to dimensions and surface treatments according to customer drawings.
- The pipes undergo optimized solution heat treatment, resulting in excellent processing performance. Secondary processing services such as beveling, cutting, bending, and expansion are supported.
application areas
- Marine Engineering: Subsea pipelines for transporting oil and natural gas, seawater-cooled heat exchangers, evaporators, and condensers.
- Petrochemical Industry: Heat exchangers and pipelines for high-temperature and high-pressure applications.
- Energy Industry: FGD systems and industrial cleaning systems.
- Machinery Manufacturing: High-strength components such as pump shafts, valves, and bolts.
- Chemical Industry: Vessels and pipes.
Chemical Composition
| Element | Cr (%) | Ni (%) | Mo (%) | N (%) | Mn (%) | Si (%) | C (%) | Fe (%) |
| UNS S32750 | 24.0–26.0 | 6.0–8.0 | 3.0–5.0 | 0.24–0.32 | ≤1.2 | ≤0.8 | ≤0.03 | Balance |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HB) |
| UNS S32750 | ≥795 | ≥550 | ≥25 | ≤310 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| Duplex 2205 | Low-alloy duplex steel grade for moderately corrosive environments |
| Alloy 926 | Austenitic stainless steel with excellent corrosion resistance in chloride-containing environments |
| Inconel 625 | Nickel-based alloy with excellent corrosion and oxidation resistance |
Products Show
Testing Equipment
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Factory Equipment
Pickling equipment
Polishing equipment
Cold drawing equipment
Products Application
Products Package
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