ERTi-1 ERTi-2 ERTi-3 Pure Titanium Welding Wire

ERTi-1 (Grade 1).
This is the softest and most ductile grade of pure titanium wire, with the lowest strength and highest ductility. It is suitable for welding applications requiring low mechanical strength, high formability and where corrosion resistance is a major concern, such as chemical processing equipment, heat exchangers, etc.

 

High level of ERTi-1 ERTi-2 ERTi-3 titanium welding wire production technology

ERTi-2 (Grade 2).
This is a general-purpose grade of pure titanium wire with a good balance of mechanical properties and corrosion resistance, slightly harder and stronger than ERTi-1. Widely used in applications requiring moderate strength and good weldability, such as seawater treatment equipment, pharmaceutical equipment, and some cryogenic vessels, ERTi-2 is also the preferred grade for fabricating a wide variety of titanium consumer products and structural components because of its combination of good processability and corrosion resistance.

 

ERTi-3 (Grade 3).
Compared to ERTi-1 and ERTi-2, ERTi-3 offers higher strength and better high-temperature performance, yet retains the lightweight and corrosion-resistant properties of titanium. It is suitable for applications requiring higher mechanical strength, such as aerospace structural components, heat exchanger tubing, high pressure vessels, and certain chemical equipment. Welding ERTi-3 may require more careful process control to prevent weld cracking, especially in thick plates or under high stress conditions.

 

Comparison Chart: ERTi-1 vs. ERTi-2 vs. ERTi-3

Property	ERTi-1	ERTi-2	ERTi-3
AWS Classification	AWS A5.16 ERTi-1	AWS A5.16 ERTi-2	AWS A5.16 ERTi-3
Alloy Type	Commercially Pure Titanium	Commercially Pure Titanium	Commercially Pure Titanium
UNS Number	R50100	R50200	R50300
Primary Base Metals	Grade 1 CP Titanium	Grade 2 CP Titanium	Grade 3 CP Titanium
Oxygen Content, max	0.10%	0.15%	0.20%
Key Characteristic	Maximum ductility, highest purity	Balanced properties, most versatile	Higher strength, good formability
Strength Level	Lowest	Medium	Medium-High
Ductility	Highest	High	Good
Corrosion Resistance	Excellent	Excellent	Excellent
Typical Applications	Chemical processing, linings	General fabrication, marine	Structural, higher strength requirements

 

Large-scale factory production of ERTi-1 ERTi-2 ERTi-3 filled titanium wire

Manufacturing Process

Raw Material Selection: High-purity titanium sponge with controlled interstitial levels

Multiple Melting: VAR melting for homogeneity and inclusion control

Chemical Analysis: Full verification of composition including oxygen, nitrogen, hydrogen

Hot Working: Precision rolling and forging to rod form

Surface Preparation: Descaling and mechanical conditioning

Cold Drawing: Multi-pass drawing with intermediate vacuum annealing

Final Annealing: Vacuum annealing for optimal ductility and cleanliness

Surface Cleaning: Multi-stage chemical cleaning to remove all contaminants

Precision Finishing: Straightening or precision winding

Final Inspection: Dimensional, surface, and cleanliness verification

Packaging: Clean environment packaging with desiccant

 

Quality Control and Testing

Test	Method	Standard
Chemical Analysis	ICP-OES / LECO (O, N, H)	ASTM E2371 / ASTM E1409 / ASTM E1447
Tensile Testing	On weld deposits	AWS A5.16 / ASTM E8
Diameter Tolerance	Laser micrometer	AWS A5.16 Class A
Surface Cleanliness	Visual, acetone wipe, chloride test	ASTM E165
Bend Testing	Guided bend test	AWS A5.16
Hydrogen Content	LECO analysis	ASTM E1447
Hardness Testing	Microhardness	ASTM E384
Certification	Mill Test Report (MTR)	EN 10204 3.1

 

Professional Approved Team Supply ERTi-1 ERTi-2 ERTi-3 Pure Titanium Wires

GNEE is an enterprise engaged in the research, smelting and processing of titanium and its alloys. The factory covers an area of 350,000 square metres, and has a series of production equipments such as vacuum induction furnace imported from the United States, vacuum consumable arc furnace made in Germany, 2800mm four-high reversible rolling mill, vacuum annealing furnace and so on, which can customize the production of any size of plate within 2.6m * 16m, and the maximum length of a single pipe can reach 15m.
Meanwhile, we also have more than 100 sets of various testing instruments, the main equipment includes American non-destructive testing system, spectrum analyser, carbon and sulphur tester, universal testing machine, ultrasonic testing system, fatigue testing machine and so on.
With more than ten years' export experience, our products are exported to USA, UK, Germany, France, Brazil, Japan, Korea, India, Vietnam, Australia, Philippines, Zambia, Indonesia and other countries.
 

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