ASTM F67 Titanium Plate

ASTM F67 Titanium Plate is a popular grade of commercially pure titanium used in a wide variety of industries. There are four levels, namely Level 1, Level 2, Level 3 and Level 4. Grade 1 is the most malleable and softest grade, while Grade 4 is the strongest. Each grade has unique properties and is known for its excellent corrosion resistance, high strength-to-weight ratio and biocompatibility. famous. ASTM F67 is a specification covering unalloyed titanium plate, sheet, and strip products used in the manufacture of chemical processing equipment. One of the most important requirements is the control of impurities in titanium. Impurities such as hydrogen, nitrogen and other elements can affect titanium’s strength and ductility as well as its biocompatibility. Therefore, the standard sets limits for these impurities, as well as testing requirements to ensure that titanium meets these limits. Manufacturing processes used to produce titanium for medical applications must also meet specific requirements outlined in ASTM F67. These processes include melting, forging and machining and must be performed in a controlled environment to prevent contamination and ensure consistent quality.

GR-1 Chemical Composition List (%)-Density: 4. 51g/cm3
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Main ingredients	Impurities are no more than ≤
titanium	iron	carbon	nitrogen	hydrogen	oxygen	other elements
						single	sum
margin	0.2	0.08	0.03	0.015	0.18	0.1	0.4

 

GR.2 chemical composition
Oxygen (O)	0.25 Max		Residuals	0.4 Max
Nitrogen (N)	0.03 Max		Titanium (Ti)	Bal
Carbon (C)	0.08 Max		Hydrogen (H)	0.015 Max

 

Trademark	Tensile strength, MPa ( min)	Yield strength, MPa ( min)	Elongation, %( min )	Area reduction rate, % ( min)
GR2	345	275	20	30

 

GR3 titanium alloy
Titanium (Ti)	margin		Hydrogen (H)	≤ 0.015
Iron (Fe)	≤ 0.30		Oxygen (O)	≤ 0.20
Carbon (C)	≤ 0.10		Aluminum (AI)	5.5~ 6.8
Nitrogen (N)	≤ 0.05		Vanadium (V)	3.5~4.5

 

GR3 titanium alloy mechanical properties :		density / temperature
tensile strength	σ b/MPa2895	GR3 titanium alloy density : 4.5 (g/cm3)
Specify residual elongation stress	σ r0.2/MPa ≥ 825
Elongation	85(%) ≥ 10	GR3 working temperature -100~550 ( ℃ )
rate of reduction in area	85(%) ≥ 10

 

Chemical composition of Grade4 titanium
Trademark	Impurities are not greater than
Grade4	Titanium (Ti)	Iron (Fe)	Carbon (C)	Nitrogen (N)	Hydrogen (H)	Oxygen (O)	Aluminum (Al)	Vanadium (V)
	margin	≤0.30	≤0.08,	≤0.05	≤0.015	≤0.20	5.5～6.75	3.5～4.5

 

ASTM F67 is the widely recognized standard for titanium materials used in medical devices. The most commonly used titanium alloys meeting this standard include Grade 1, 2 and 3 titanium.

 

Grade 1 titanium is a commercially pure form of titanium that is unalloyed and less strong. It is primarily used in surgical implants such as bone screws, plates and pins. Although it is not as strong as other titanium alloys, its natural ability to bond with human tissue makes it ideal for medical applications.

 

Grade 2 titanium is also commercially pure titanium but contains trace amounts of oxygen, carbon, and nitrogen. It is stronger than Level 1 but still has similar biocompatibility. Grade 2 titanium is commonly used in orthopedic implants such as hip and knee replacements.

 

Grade 3 Titanium, like Grade 1 and Grade 2 Titanium, is a commercially pure form of titanium. It has higher corrosion resistance and is stronger than Level 1 and 2. This titanium alloy is commonly used in dental implants, as well as orthopedic and spinal implants.

 

Ti-6Al-4V (Grade 5): This titanium alloy contains 6% aluminum and 4% vanadium. It is much stronger than commercial pure titanium grades and is commonly used in aerospace and biomedical applications. It is known for its light weight and high strength-to-weight ratio.

 

Ti-6Al-4V ELI (Grade 23): This is an improved version of Ti-6Al-4V designed for medical applications. Because its oxygen and nitrogen content is lower than Ti-6Al-4V, it is also called "ultra-low gap" titanium. This alloy is commonly used in implants such as knee and hip replacements.

The process involves passing the titanium ingot through a series of rollers to reduce the thickness of the titanium ingot.

 

The ingot is first heated to a high temperature to soften it and make it more malleable.

 

Then roll it until it reaches the desired thickness.

 

The rolled titanium plates are then cut to the required size,

 

And undergo further heat treatment to improve its mechanical properties.

 

Medical implants: Due to its excellent biocompatibility, it is widely used in the production of medical implants such as dental implants, pacemakers, and joint replacement parts.

 

 Aerospace: ASTM F67 sheet is used in the aerospace industry to manufacture aircraft parts due to its lightweight and high strength-to-weight ratio.

 

Chemical Processing: Used in the chemical processing industry due to its excellent corrosion resistance to different acids and chemicals.

 

Marine: ASTM F67 sheet is used in marine applications due to its resistance to salt water corrosion.

 

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