Products Description
Our Advantages
1. High Corrosion Resistance
- TORICH 2205 Stainless Steel Square Tube is made from duplex stainless steel materials, such as 2205 and 2507, offering excellent corrosion resistance. They are ideal for seawater, brackish water, and marine atmospheric environments.
- The tubes undergo rigorous chemical composition and corrosion resistance testing to ensure long-term durability in demanding environments such as oil and gas, marine, chemical processing, and desalination systems.
2. Surface Quality
- Our rectangular tubes are pickled and passivated to improve their resistance to pitting and crevice corrosion, making them ideal for marine, chemical, and offshore applications.
- We can provide various surface treatments according to customer applications, including pickling and passivation, polishing, and bright or satin finishes for architectural use. Surface defect testing is performed according to ASTM standards.
3. Tube Quality
- Our seamless tubes are cold-drawn using precision molds to ensure accurate dimensions and uniform wall thickness. Welded tubes utilize advanced welding technology and strict quality control, and undergo post-weld heat treatment to ensure weld strength.
- The tubes undergo rigorous dimensional inspection, surface inspection, mechanical properties, and hydrostatic testing to ensure the high-pressure and corrosion resistance of the 2205 Stainless Steel Square Tube.
4. Excellent Machinability
- Our tubes possess high yield strength and good ductility, enabling cold forming, bending, and cutting with controllable deformation, making them suitable for complex structures.
- The tubes have excellent weldability, requiring no post-weld heat treatment in most applications, enabling faster production and installation.
application areas
- Offshore and marine engineering structures
- Seawater pipelines and desalination plants
- Chemical and petrochemical processing equipment
- Oil and gas pipelines, risers, and pressure vessels
- Heat exchangers and condensers
- Construction and structural projects requiring high strength and corrosion resistance
Chemical Composition
| Element (%) | Cr | Ni | Mo | N | Mn | C | Si | Fe |
|---|---|---|---|---|---|---|---|---|
| S32205 | 21–23 | 4.5–6.5 | 2.5–3.5 | 0.08–0.20 | ≤2 | ≤0.03 | ≤1 | Balance |
| S32707 | 24–26 | 6–8 | 3–4 | 0.24–0.32 | ≤2 | ≤0.03 | ≤1 | Balance |
| S32750 | 25–26 | 6.5–8 | 3–5 | 0.24–0.32 | ≤2 | ≤0.03 | ≤1 | Balance |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HB) |
| S32205 | 620–750 MPa | 450–550 MPa | ≥25% | ≤320 HB |
| S32707 | 750–850 MPa | 550–650 MPa | ≥20% | ≤350 HB |
| S32750 | 780–900 MPa | 580–680 MPa | ≥18% | ≤360 HB |
Possible Alternative Grades
| Alternative Grades | Reasons |
| 316L | It has good corrosion resistance, but its strength is lower than that of duplex stainless steel. |
| Alloy 20 | It is a nickel-iron-chromium alloy with excellent resistance to sulfuric acid. |
| 904L | It exhibits high corrosion resistance to oxidizing acids and industrial chemicals. |
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 Package
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