Sihe Steel
| Alloy Grade | UNS Designator | Primary Characteristics | Common Applications |
|---|---|---|---|
| 304/304L | S30400/S30403 | Excellent corrosion resistance and forming properties. Low carbon content prevents intergranular corrosion. | Food processing, architectural ripple cladding, general piping. |
| 316/316L | S31600/S31603 | Added Molybdenum improves resistance to chloride pitting and crevice corrosion. | Marine environments, chemical vessels, pharmaceutical tubing. |
| Duplex 2205 | S32205 | Dual-phase microstructure (ferrite/austenite). Yield strength is twice that of standard austenitics. | Deep-water umbilical systems, oil & gas flowlines. |
| Inconel 625 | N06625 | High resistance to chloride ions, organic acids, and extreme temperature thermal fatigue. | Aerospace propulsion, petrochemical processing, super-hot exhaust systems. |
| Incoloy 825 | N08825 | Superb stress corrosion cracking resistance in sulphuric and phosphoric acids. | Acid gas wells, chemical scrubbers, heat exchanger units. |
We support custom fabrication across diverse materials (304, 316L, 2205, 825) and configurations (outer diameter 6.35 mm to 19 mm for coils).
Precision bending, complex spiral forming, and fine tolerance drawing tailored to maximize thermal transfer in heat exchangers.
State-of-the-art laser cutting, high-speed mechanical shearing, and flame cutting ensuring flat, clean edges free of burrs.
Online bright annealing, mechanical polishing, and electrolytic passivation to optimize aesthetic shine and chemical passivity.
Secure end flanging used in automotive exhaust systems, high-pressure chemical lines, and precision instrument ports.
100% mechanical tests: compression, flaring, bending, hardness testing, tensile pull, and air-tightness testing at high pressures.
2205 duplex steel configuration with exceptional mechanical yield...
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1/2" coiled tubing optimized for offshore subsea hydraulic lines...
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High temperature resistance optimized for exhaust manifolds...
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Specialized seamless processing for complex hydraulic loops...
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Mirror finish tubes engineered for architectural and sanitary installations...
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High pressure resistance, continuous length up to 10,000 meters...
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Excellent pitting and cracking resistance in acid gas wells...
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High-grade mirror finish sheets with water ripple textures...
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