GR4 products provided by GNEE
Gr4 Ti6AL4V ELI Medical Titanium Wire
Gr4 Titanium Foil For Industrial
Products Description
Titanium Grade 4 is the strongest of the commercially pure titanium alloys, while maintaining excellent corrosion resistance, weldability and biocompatibility. It is a popular choice in applications where high strength is required together with low weight and exceptional corrosion resistance, such as medical technology, offshore and pressurized systems.
Recommended filler material for welding: Titanium Grade 4 or equivalent titanium alloy with inert gas protection.
General material description:
Type: Commercially pure titanium (minimum 98% Ti), highest content of interstitial elements (e.g. oxygen)
Structure: HCP structure (hexagonal close-packed)
Developed for: Applications requiring higher strength but still low weight and extremely good corrosion resistance
Alternative names: Titanium Grade 4, CP Titanium Grade 4, UNS R50700, Werkstoffnr 3.7065, ASTM B861
Key benefits:
Highest strength among commercially pure titanium grades
Excellent corrosion resistance in aggressive fluids and seawater
Good weldability and biocompatibility – often used in implants
Low weight (~4.51 g/cm³) – perfect for light but strong components
Good resistance to stress corrosion cracking and hydrogen induced cracking
Applications by industry and value:
Medical technology: Dental implants, hip prostheses, surgical instruments – strength + biocompatibility
Offshore / Marine: Heat exchangers, valves, fasteners – strength + seawater protection
Chemical industry: Pressure vessels, tanks, flanges – acid resistance + mechanical load-bearing capacity
Aviation: Structural parts, pressurized components – lightness + strength
Energy / Nuclear power: Equipment in aggressive environments – stability
General corrosion description:
Stable passive oxide film provides very high resistance to general corrosion
Resists seawater, chlorides and oxidizing acids very well
Resistant to hydrogen-induced cracking (HE)
Corrosion environments where the material works well:
Seawater (static and flowing)
Acids: nitric acid, phosphoric acid, organic acids
Chloride-rich environments (NaCl, CaCl₂)
Oxidizing chemicals and bleaching liquids
Technical material properties (annealed condition):
Property (Typical value)
Yield strength (0.2%): ~480–550 MPa
Tensile strength: ~550–680 MPa
Elongation at break: ~15–20%
Density: ~4.51 g/cm³
Elastic modulus: ~105 GPa
Thermal conductivity: ~16–18 W/m·K
Application temperature: Rec. ≤ 400°C (temporarily up to 500°C)
Weldability: Very good – inert gas required when welding
Machinability: Moderate – more force than for Grade 2 required
Titanium products provided by GNEE
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Standard
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ASTM B338/ASME SB338, ASTM B337/ASME SB337, ASTM B861/ASME SB861, ASTM B862/ASME SB862,AMS4911,AMS4928
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Material Grade
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Gr1, Gr2, Gr4, Gr7, Gr9, Gr11, Gr12, etc
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Length
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≤15000mm
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Size(mm)
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Diameter 3-114mm
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Section shape
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Round / Square
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Tolerance |
a) Outer Diameter: +/- 0.01mm
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b) Thickness: +/- 0.01mm
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c) Length: +/- 0.1mm
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Surface
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Pickling, annealing, polishing, bright.
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Feature
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1.Low Density and High Strength
2.Excellent Corrosion Resistance 3.Good resistance to effect of heat 4.Excellent Bearing to cryogenic property 5.Nonmagnetic and Non-toxic 6.Good thermal properties 7.Low Modulus of Elasticity |
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Test
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Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
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Material
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Pure titanium and Titanium alloy
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Titanium Grade
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GR1/GR2/GR3/Gr4/GR5/GR7/GR9/GR12/Gr5Eli/Gr23
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Standard
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ASTM B348/ASME SB348, ASTMF67, ASTM F136, ISO-5832-2(3),AMS 4928 etc
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Shape
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Titanium round rod/bar, Titanium square rod/bar,Titanium flat rod/bar
Titanium rectangle rod/bar, Titanium hex rod/bar |
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Diameter
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1-300mm,customizable
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Length
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50mm-6000mm,customizable
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Tolerance
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h6~h13 H10~H13
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Surface
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Bright/Polished/ Machined
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Main Technique
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Hot Forged; Hot Rolled; Cold drawn; Straighten etc
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Heat Treatment
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Usually are Annealled,but Solid Solution & Aging can be also OK
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Material Milling Certificate
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According to. EN 10204.3.1
Including Chemical composition and Mechanical property |
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Application
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Metallurgy, Electronics, Medical, Chemical, Petroleum, Pharmaceutical, aerospace, etc.
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Standard |
ASTM B265 JIS H4600 GB/T 3620.1 |
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Grade |
ASTM Pure Ti: Gr.1 Gr.2 Gr.3 Gr.4 Ti Alloy: Gr.5 Gr.7 Gr.9 Gr.11JIS Pur Ti: Class 1 Class 2 Class 3 Class 4;Ti Alloy: Class 60 |
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Size |
thickness 0.3mm~100mm; Width 50mm~2500mm; Length 1000mm~12000mm |
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Surface |
Mill finish, polished, anodizing, brushing, sand blasting, powder coating,etc |
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Application |
1)Further making utensil. |
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Grade |
GR1,GR2,GR3,GR4,GR5,GR7,GR9,GR11,GR12,GR23 etc.
ERTi-1, ERTi-2, ERTi-3, ERTi-4, ERTi-5, ERTi-7, ERTi-9, ERTi-11, ERTi-12 |
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Size |
Dia：0.1-8mm or customizable |
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Standard |
ASTM B348,ASME SB348,ASTM B863,AWS.A5.16,GB/T3623-2007 |
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MOQ |
10kg |
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Quality and test |
Annealing, Ultrasonic testing |
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Application |
Aerospace, Chemical, Medical, Eye Frames,Welding etc |
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Feature |
High strength,Light weight,Excellent heat conduction and corrosion resistance |
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Condition |
Annealed (M), Hot Worked (R), Cold Worked (Y) |
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Surface |
Bright, Polished, Pickling, Sandblasting |
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Package |
Wooden Box |
