321 Titanium Stabilized Valve Castings

Product Name: 321 Ti-Stabilized Stainless Steel Valve Castings
(Shandong Hongyang Special Steel - High-Temperature Corrosion Solutions Specialist)

Precision-cast from ZG10Cr18Ni9Ti (321 Stainless Steel) with titanium stabilization, our valve components are engineered for high-temperature corrosive media. Ideal for acidic/oxidative environments up to 650°C with intergranular corrosion risks, delivering 2-3x longer service life than standard 304 valves.

1. Intergranular Corrosion Protection

Ti stabilization: Ti≥5×C content eliminates sensitization (ASTM A262 Practice E certified)

High-temperature strength: Maintains ≥150MPa yield strength at 600°C

Oxidation resistance: <0.2mm/year scale thickness at 900°C

2. Precision Casting Technology

Complex flow paths: Monobloc cast body/bonnet eliminates weld weaknesses

Dimensional control: CT6 tolerance (ISO 8062) on critical sealing surfaces

Surface quality: As-cast Ra≤12.5μm, machined finish to Ra1.6μm

3. Full-Spectrum Performance

Media compatibility: Resists mixed acids (≤40% H₂SO₄/HNO₃)

Pressure ratings: Class 150-2500 (ASME B16.34 compliant)

Cryogenic toughness: ≥80J impact at -196°C (LNG-proven)

Typical Applications

Refining: FCC unit hot valves (650°C/sour gas)

Chemical Plants: Nitric acid control valves (40% HNO₃ @90°C)

LNG Facilities: Cryogenic globe valves (-162°C service)

Nuclear Systems: Boric acid regulating valves (radiation-resistant)

✔ Composition control: Per-heat spectral analysis + Ti/C ratio verification
✔ NDT: 100% PT on bodies + 20% RT sampling
✔ Performance testing: Simulated operating condition P-T cycling

• API 600/API 6D • ASME B16.34 • NACE MR0175
• EN 10204 3.1 certification • PED 2014/68/EU

Optional Enhancements:

X-ray inspected castings (ASTM E186 reference)

Cryogenic impact testing reports

3D scanned dimensional reports

Engineering Support

• Material selection guidance for specific media
• CFD-optimized flow path designs available
• Prototype development within 20 working days

This technical profile provides comprehensive data for engineering evaluation while maintaining focus on technical specifications and performance capabilities. All contact information has been removed as requested.

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