Titanium Round Wire Grade 2

Titanium Alloy Grade 2 is commercially pure titanium. It has outstanding corrosion resistance and useful strength (similar to austenitic stainless steels) at low density. It has good weldability and is easily formable. It is the most commonly used grade of titanium.

 

 

Element	Titanium	Nitrogen	Carbon	Hydrogen	Iron	Oxygen	Residuals (each)	Residuals (total)
%	Balance	0.03 max	0.08 max	0.015 max	0.30 max	0.25 max	0.1 max	0.4 max

 

	0.2% Proof Stress	Tensile Strength	Elongation
	MPa	MPa	%
Annealed	275-450	345	20

 

Density	Melting Range	Modulus of Elasticity (Tension)	Specific Heat	Mean Coefficient of Expansion	Thermal conductivity	Electrical Resistivity
kg/m3	°C	GPa	J/kg. °C	x10 -6 / °C	W / m. °C	micro-ohm.m
4,507	1668± 10	103	519	8.41	11.4	0.420

 

Location	Flow Rate	Type of Test	Test Duration	Erosion Corrosion Rate
	m/sec		months	mm/year
Brixham Sea	9.8	Model Condenser	12	0.003
Kure Beach, NC	1	Ducting	54	7.5 x 10-7
Kure Beach, NC	8.5	Rotating Disc	2	1.3 x 10-4
Kure Beach, NC	9	Micarta Wheel	2	2.8 x 10-4
Kure Beach, NC	7.2	Jet Impingement	1	5.0 x 10-4
Wrightsville Beach, NC	1.3	–	6	1.0 x 10-4
Wrightsville Beach, NC	9	Micarta Wheel	2	1.8 x 10-4
Mediterranean Sea	7.2	Jet Impingement	0.5	0.5mg/day
Dead Sea	7.2	Jet Impingement	0.5	0.5mg/day

 

Q: Why is GR1 Titanium considered difficult to machine? A: Its low thermal conductivity and "gummy" nature cause heat to build up at the cutting edge, leading to tool wear and material adhesion (built-up edge). This requires sharp tools, low speeds, high feed rates, and ample coolant.

Q: What is the best welding method for GR1 Titanium? A: Gas Tungsten Arc Welding (GTAW or TIG) with high-purity argon shielding (99.999%+) is the standard. Proper shielding of both the front and back of the weld is critical to prevent atmospheric contamination (oxygen, nitrogen) which embrittles the weld.

Q: How do I clean or prepare the surface of GR1 Titanium before welding or painting? A: Remove all contaminants (oils, grease, oxides) using a non-chlorinated solvent (like acetone) followed by mechanical abrasion (stainless steel wire brush used only on titanium) or acid pickling (HF/HNO3 solution). This ensures a clean, oxide-free surface.

Q: Can GR1 be polished to a mirror finish? A: Yes, extremely well. It can be mechanically polished through progressive grits to a brilliant mirror finish. For medical implants, electrolytic polishing (electropolishing) is often used to achieve a smooth, defect-free, and cleanable surface.

Q: Is GR1 Titanium safe for medical implants and food contact? A: Yes. Its excellent biocompatibility makes it suitable for permanent implants (ASTM F67). Its non-toxic and corrosion-resistant properties also make it suitable for food processing equipment, provided proper surface finishes and cleaning protocols are used.

Q: What standards cover GR1 Titanium plate and sheet? A: The primary standard is ASTM B265, "Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate." It specifies chemical, mechanical, and dimensional requirements.

 

Specifically designed for high-surface-quality mirror-finished sheets, polished strips, and thin-walled tubes. Each product is first placed in a PE sealed bag, then fully wrapped with soft non-woven fabric + pearl cotton padding. Individually compartmentalized foam mold inserts are used to secure each piece, and the products are placed into high-strength, crush-resistant cartons. The outer cartons undergo a "sealed film + tape" fully enclosed moisture-proof treatment and are affixed with "Precision Surface · Handle with Care" warning labels to prevent scratches and contamination during transit.

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