Description
Why 316Ti Outperforms
| Challenge |
316Ti Plate |
316L |
321 |
| Intergranular Corrosion |
Immune (ASTM A262 Practice E) |
Fails after prolonged 450°C exposure |
Immune but lower Mo content |
| High-Temp Strength |
180 MPa at 600°C |
120 MPa at 600°C |
150 MPa at 600°C |
| Cost per Ton |
$7.200 |
$5.800 |
$6.500 |
Key Properties
Ti Stabilization: Ti ≥5×C content prevents Cr23C6 formation during welding/heat treatment.
Pitting Resistance (PREN): 30+ (vs. 28 for 316L) due to 2.1% Mo and Ti synergy.
Thermal Conductivity: 16.3 W/m·K (superior to 317L for heat exchanger applications).
Industry-Specific Mastery
1. Chemical Processing
Sulfuric acid concentrators | Phenol reactor vessels | Chlor-alkali cell liners
2. Aerospace
Exhaust ducting for turbofans | Rocket combustion chamber mounts | APU heat shields
3. Energy
Flue gas desulfurization scrubbers | Geothermal brine piping | Nuclear fuel rod handling tools
4. Automotive
Turbocharger housings | EGR cooler plates | EV battery thermal management systems
Fabrication Precision
Welding Protocol:
Filler Metals: ER316Ti or ER320LR for critical joints | No post-weld heat treatment required
Gas Protection: 98% Ar + 2% H₂ for TIG welding to prevent titanium oxide formation
Machining Tips:
Use carbide tools with 15° positive rake angle | Lubricate with sulfur-free oils
Surface Treatments:
Pickling (HNO₃ + HF mix) to restore corrosion resistance | Bead blasting for fatigue-prone components
Proven Global Resilience
BASF Chemical Complex: “316Ti reactor plates survived 10+ years in 98% sulfuric acid at 80°C.”
Boeing Defense: “Zero intergranular cracks in welded afterburner mounts after 2.000 flight hours.”
Iceland Geothermal Plant: “316Ti brine pipes outperformed 317L by 3x lifespan in H₂S-rich steam.”
