Product Introduct

In TIG welding for marine and chemical process systems, weld joint corrosion or cracking can cause unplanned downtime and high maintenance costs. Gr1 Titanium Wire for TIG Welding delivers a reliable solution through excellent corrosion resistance, stable arc behavior, and consistent bead quality, even after extended production runs. It is well suited for marine condensers, chemical plants, and electroplating loops where service cycles may include high-chloride water and periodic acid cleaning.

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Product Parameter

Specification	Typical Value	Industrial Relevance
Material Grade	ASTM B863 Gr1	Dual standard compliance for global supply
Wire Diameter	0.6–3.2 mm	Fits common TIG/GTAW setups
Tensile Strength	≥240 MPa	Adequate for low-pressure vessel welding
Corrosion Rate	0.018 mm/year (3.5% NaCl, 25°C, ASTM G31)	For high-salinity service lines
Thermal Conductivity	~21 W/m·K	Maintains steady weld pool temperature
Surface Finish	Bright pickled	Improves arc start and wetting
Short-Term Temp Limit	350°C ≤30 min; 400°C ≤5 min/year ≤72 h	For repair welding under heat spikes

Typical TIG Welding Applications

Gr1 Titanium Welding Wire is primarily used for the following applications

Welding of Titanium Tubes and Sheets

Heat Exchangers

Ocean engineering

■ Arc Stability Assurance
Controlled oxygen (≤0.15%, typical 0.12%) and hydrogen (≤50 ppm) contents reduce porosity risk. Each coil is monitored with ±0.002 mm laser diameter measurement, ensuring smooth feeding without wire jams.

■ Corrosion Performance in Harsh Media
The passive oxide film of Gr1 Titanium Wire for TIG Welding provides strong resistance to pitting in high-chloride cooling water and allows monthly nitric-acid cleaning at ≤60°C without loss of integrity.

■ Adaptable for Complex Fabrication
Suitable for thin-wall tube welding, expansion joints, and complex fitting assemblies. Fine diameters enable precise heat control, limiting heat-affected zone distortion.

■ Industry Uses
Applied in heat exchanger fabrication, offshore equipment maintenance, and chemical piping repairs.

Product Details

■ Material: ASTM B863 Gr1 , optimized for marine and chemical plant service

■ Process: Cold drawn with multi-pass annealing for uniform grain and ductility

■ Precision: Concentricity ≤0.05 mm for consistent torch feeding

■ Surface Finish: Bright pickled to remove oxide layer and enhance wetting

■ Ends: Plain ends ready for TIG/GTAW setup

Chemical & Mechanical Characteristics

Chemical Composition (ASTM B863):

Oxygen: ≤ 0.18%
Iron: ≤ 0.20%
Hydrogen: ≤ 0.015%
Nitrogen: ≤ 0.03%

Welding Characteristics:

Low Oxygen & Iron content → Smooth arc & reduced risk of embrittlement
Controlled Nitrogen → Excellent bead formation with minimal spatter

Mechanical Properties (typical values):

Tensile Strength: 300-550 MPa
Elongation: ≥ 20%
Yield Strength: 240 MPa

These properties ensure Gr1 titanium wire performs excellently in TIG welding with reliable, long-lasting results in delicate, thin applications.

Common testing items

Chemical Composition

Tensile Properties

Diameter & Tolerance

Products Description

We understand the importance of cleanliness and surface condition in titanium welding:

Packaging:

Vacuum-sealed plastic bags or aluminum pouches to avoid moisture exposure
Cardboard or wooden cases for bulk orders

Surface Condition:

Pickled and thoroughly cleaned before packaging
No contaminants like oil, grease, or drawing lubricants, ensuring smooth and consistent welds

Handling and Storage:

Store in dry, clean areas to avoid contamination
Best practice: Keep the wire in its original packaging until ready to use

FAQ

Q1: How long can it last in service?

A1: In typical seawater piping repairs, average service life is ~4.8 years based on offshore project data; actual duration varies with medium and maintenance cycle.

Q2: Can it handle acid cleaning?

A2: Yes, suitable for monthly nitric or citric acid cleaning (≤60°C). Avoid HF-based solutions unless passivated afterward.

Q3: Which grade should I select?

A3: Choose Gr1 for maximum corrosion resistance in low-load joints; select Gr2 when higher strength is required with moderate corrosion exposure.

Q4: What is the maximum working temperature?

A4: Continuous use up to 300°C; short-term peaks per specification table can be tolerated.

Q5: Do you accept small trial orders?

A5: Yes, we can supply short coils for welding qualification or repair work.