TISCO 316L/316H/316Ti Stainless Steel Strips Rolles Thickness 0.3 - 8.0mm Cold Rolled and Hot Rolled SS Coil

Core Differences: Chemistry and Properties

Chemical Compositions (ASTM A240 Standards)

Mechanical and Environmental Traits

Industry-Specific Advantages

1. Medical and Pharmaceutical Industry

• Key Advantage: Biocompatibility and corrosion resistance in bodily fluids.
  • Low carbon content (≤0.03%) eliminates chromium carbide precipitation, critical for maintaining hygiene and preventing corrosion in:
    • Surgical instruments (scalpels, forceps).
    • Implantable devices (pacemaker casings).
    • Pharmaceutical mixing tanks and tubing.
• Regulatory Compliance: Meets ASTM A276 standards for medical use, ensuring non-toxicity and ease of sterilization.

2. Marine and Offshore Engineering

• 316L Advantage:
  • Superior resistance to seawater chlorides (e.g., NaCl).
  • Ideal for:
    • Ship hull cladding, propeller shafts, and offshore platform components.
    • Desalination plant heat exchangers (welded joints remain corrosion-free).
• 316Ti Edge:
  • Titanium stabilization adds an extra layer of protection against pitting in high-salinity environments (e.g., coastal power plants).

3. Energy and Power Generation

• Key Benefit: High-temperature strength at 425–650°C.
  • Higher carbon content (0.04–0.10%) enhances creep resistance, making it indispensable for:
    • Boiler tubes and superheaters in thermal power plants.
    • Nuclear reactor components (e.g., steam generators).
    • Gas turbine exhaust systems (withstands cyclic thermal stress).
• Case Study: In a coal-fired power plant, 316H strips in boiler headers outperformed 316L by 30% in creep rupture tests at 550°C.

4. Chemical and Petrochemical Industry

• 316L for Corrosive Chemicals:
  • Resists attack from weak acids (e.g., acetic acid) and alkaline solutions.
  • Used in:
    • Storage tanks for fertilizers and pesticides.
    • Pipeline systems in refineries.
• 316Ti for Welded High-Temp Systems:
  • Titanium prevents intergranular corrosion in sensitization-prone zones (400–800°C), critical for:
    • Reactors producing synthetic fibers (e.g., polyester).
    • Heat exchangers in oil refineries handling sulfuric acid.

5. Aerospace and High-Performance Automotive

• 316H in Aerospace:
  • Lightweight yet strong for non-critical high-temperature parts:
    • Aircraft exhaust ducts (withstands 600°C during flight).
    • Engine brackets in auxiliary power units (APUs).
• 316Ti in Automotive:
  • Used in hybrid/electric vehicle battery cooling systems:
    • Ti-stabilization resists corrosion from coolant fluids while maintaining formability for complex tubing.

Decision-Making Guide: Selecting the Right Grade

When to Choose 316L?

• Priority: Weldability in corrosive environments with no post-weld heat treatment.
• Red Flag: Avoid prolonged use above 425°C (strength diminishes).

When to Choose 316H?

• Priority: Sustained high-temperature strength (425–650°C) in non-welded or minimally welded components.
• Caution: Requires annealing if welded in corrosive service.

When to Choose 316Ti?

• Sweet Spot: Complex welded structures in both corrosive and moderate-high-temperature environments (e.g., chemical reactors at 500°C).
• Cost Consideration: Slightly pricier than 316L but cheaper than specialized alloys like 317L.

• "316L stainless steel strip medical applications"
• "316H high-temperature resistance energy industry"
• "316Ti vs 316L corrosion comparison"
• "Marine-grade 316 stainless steel strip"
• "ASTM A240 316Ti specifications chemical industry"