At Luokaiwei, we produce 316Ti stainless steel plates (UNS S31635) by strategically adding titanium (0.2–0.7%) to 316-grade alloys, forming stable titanium carbides that prevent chromium depletion at grain boundaries. This titanium stabilization eliminates sensitization risks during welding or prolonged 425–815°C exposure, making our plates ideal for welded pressure vessels, acid processing equipment, and high-temperature flue gas systems where standard 316L fails. With 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, 316Ti delivers robust pitting resistance (PREN ≥26) while outperforming 316L in sulfuric/phosphoric acid environments.

Performance Advantages: Where 316Ti Excels

1. Uncompromised Corrosion Resistance

   • Immune to intergranular attack in weld heat-affected zones (HAZ)—critical for chemical reactor seams and pipe joints.

   • Withstands 20% sulfuric acid, acetic acid, and tartaric acid at 80°C—surpassing 316L by 30% in corrosion fatigue life.

   • Avoid chloride-rich seawater (use 317L instead) due to Ti-induced pitting susceptibility.

2. Enhanced High-Temperature Strength

   • Retains 85% yield strength at 600°C (vs. 316L’s 65%)—ideal for heat exchanger baffles and furnace linings.

   • Oxidation resistance up to 870°C intermittent use; limit continuous service to ≤425°C to prevent σ-phase embrittlement.

3. Superior Fabrication Flexibility

   • Cold-forms smoothly (min bend radius = 2× thickness) without work hardening cracks.

   • Machinability: 40% lower cutting forces than 317L with TiAlN-coated tools.

Product Parameters

Technical Specifications

Table 1: Chemical Composition (Weight %)

Sources: ASTM A240, EN 1.4571, JIS SUS316Ti

Table 2: Mechanical & Thermal Properties

Note: 316Ti exhibits 15% higher creep strength than 316L at 600°C

Global Price Positioning (2025 Q3)

*Price volatility alert: Nickel futures rose 12% YoY—lock prices with our fixed-rate contracts for 50+ ton orders*

Critical Industry Applications

• Chemical Processing: Reactors exposed to H₂SO₄ ≤50%, acetic acid condensers, phosphoric acid evaporators.

• Energy & Power: FGD scrubber liners, boiler casings in coal-fired plants (resists sulfidation).

• Pharmaceutical: Autoclave vessels, fermentation tanks requiring welded integrity.

• High-Temperature Hardware: Kiln furniture, radiant tubes (intermittent ≤870°C use).

Avoid in marine splash zones—switch to 317L for chloride resistance >100 ppm.

Luokaiwei’s Value-Added Advantages

1. Precision Metallurgy:

   • Ti homogeneity ≤0.005% segregation—prevents “comet tail” polishing defects.

   • Solution annealing at 1050±10°C with rapid argon quenching to minimize δ-ferrite.

2. Certified Quality:

   • Dual compliance with ASTM A240/ASME SA-240 and EN 1.4571.

   • Mill Test Reports (MTRs) traceable to melt batches—validating Ti/C ratio ≥5:1.

3. Custom Processing:

   • Thickness: 0.5–150 mm (cold-rolled) / 20–250 mm (hot-rolled)

   • Surface finishes: No. 4 brushed, 2B mill, #8 mirror for cosmetic welds.

4. Sustainable Logistics:

   • 18-day lead time to EU/US ports for 25+ ton orders.

   • DNV 2.7-1 certified packaging for nuclear applications.

5 Essential FAQs

1. When to choose 316Ti over 316L?
   For welded structures operating in 300–800°C range (e.g., exhaust stacks) or sulfuric acid processors—Ti prevents weld decay.

2. Does titanium reduce machinability?
   Yes—Ti(C,N) inclusions increase tool wear by 20% vs. 316L; use coated carbide tools at 120 m/min feed.

3. Can 316Ti be welded without filler additives?
   No—Always use Nb-stabilized ER316Ti or ER320LR filler to prevent “knife-line” attack.

4. Maximum chloride tolerance?
   ≤50 ppm at 25°C; for seawater pipelines, upgrade to 6% Mo alloys like 904L.

5. Do you supply ASME Section VIII Div. 1 compliant plates?
   All our 316Ti plates carry ASME SA-240 certification for pressure vessels up to 450°C.