AMS 4951 Titanium Welding Wire

AMS 4951 is the aerospace standard for commercially pure titanium (CP Ti) welding wire, covering Grades 1 to 4. Known for its exceptional corrosion resistance, weldability, and mechanical strength, AMS 4951 titanium wire is widely used in aerospace, marine, chemical processing, and high-performance industrial applications.

What Is AMS 4951?

• AMS 4951 (Aerospace Material Specification 4951) defines the chemical composition, mechanical properties, and manufacturing requirements for unalloyed titanium welding wire.

• It covers Grades 1, 2, 3, and 4:

• Grade 1: Maximum corrosion resistance, excellent ductility, lowest strength.

• Grade 2: Balanced strength and corrosion resistance; most commonly used.

• Grade 3: Higher strength than Grades 1 & 2, moderate formability.

• Grade 4: Highest strength among CP titanium grades with good corrosion resistance.

• Choosing the correct AMS 4951 titanium wire ensures optimal weld quality and long-term performance in demanding environments.

Key Features & Benefits

• Superior corrosion resistance — ideal for marine, chemical, and aerospace environments.

• Excellent weldability — low oxygen and controlled chemistry deliver clean, strong welds.

• High strength-to-weight ratio — especially in Grades 3 & 4 for structural and pressure systems.

• Thermal stability — performs reliably at temperatures up to 400°C.

• Versatile supply options — available in straight lengths, spools, or coils to fit different welding processes.

AMS 4951 Grades Comparison

Specifications & Supply Range

• Standard: AMS 4951 / AWS A5.16 ERTi-1, ERTi-2, ERTi-3, ERTi-4

• Diameter Range: 0.8 mm – 4.0 mm (custom sizes available)

• Forms: Straight rods, coils, precision-wound spools

• Surface Finish: Bright, polished, or pickled

• Packaging: Vacuum-sealed spools or custom lengths with full traceability

• Certification: Mill Test Certificates (MTC) EN 10204 3.1 / 3.2 available; third-party inspections (TÜV, SGS, DNV, etc.)

Testing & Quality Control

• Chemical Composition Verification: Spectro/PMI analysis for purity & low oxygen levels.

• Mechanical Testing: Tensile strength, elongation, and hardness per AMS 4951.

• Non-Destructive Testing: Eddy Current & Ultrasonic to detect internal flaws.

• Surface & Dimensional Inspection: Strict tolerances for diameter and straightness.

• Full Traceability: Each batch comes with a heat number and quality documents.

Applications of AMS 4951 Welding Wire

• Aerospace: Aircraft structures, engine components, hydraulic systems

• Marine & Offshore: Piping systems, seawater heat exchangers, brine tanks

• Chemical Processing: Chlorination systems, reaction vessels, condensers

• Power Generation: Heat exchangers, condensers, and scrubbers

• Medical Equipment Manufacturing: High-purity titanium assemblies

Ordering AMS 4951 Titanium Wire

When requesting a quote, specify:

• Grade required (ERTi-1, ERTi-2, ERTi-3, or ERTi-4)

• Wire diameter & form (straight, spool, or coil)

• Surface finish (bright, polished, pickled)

• Certification requirements (AMS 4951 / AWS A5.16 / EN 10204)

• Quantity & packaging preferences

Why Choose Our AMS 4951 Welding Wire

• Full Grade Availability: Grades 1–4 always in stock

• ISO 9001:2015 Certified Production: Guaranteed consistency and compliance

• Competitive Pricing: Mill-direct sourcing to reduce costs

• Fast Global Shipping: Air and sea freight options with secure packaging

• Technical Support: Expert guidance in selecting the right grade for your application

Quality Full Work

Titanium Metals specializes in high-quality titanium materials and components for critical industries. Every product is manufactured with precision, tested for strength, corrosion resistance, and purity.

100% Work Satisfication

We deliver premium-grade titanium metals engineered for high performance and long-term reliability. Every product is manufactured with strict quality controls, precise dimensions, and flawless finishing to match international standards.