Grade 4 Titanium Bar
Dia: 6.35~200mm
Length:<6000mm
standard: ASTM B348
surface: ploished
Product Introduction
Titanium Grade 4 Bar is the highest strength in pure grade titanium due to its high oxygen and extra high strength. It combines excellent corrosion resistance with good formability and weldability. Grade 4 titanium bar is mainly used in hydraulic and instrumentation tubing. Generally chosen for its corrosion resistance in a variety of chemical process equipment as well as marine and airframe applications. Gr4 titanium bar can be used for parts requiring strength up to 400 ° F and oxidation resistance to 600 ° F.
Density: 0.163 lbs/in³ (4.51 g/cm³)
Mean Coefficient of Thermal Expansion, in/in/°F (mm/m/°C):
70- 212°F (20- 100°C) 4.78 x 10-6 (8.6)
Thermal Conductivity: BTU-in/h-ft-°F (W/m-°K):
At 70°F (21°C): 119 (17.2)
Modulus of Elasticity, ksi (MPa)
15.2 x 10³ (105 x 10³) in tension
Melting Point : 3020°F (1660°C)
STC | UNS | EN / DIN |
ET4／ET4E | R50700 | 3.7065 |
Chemical composition
Grade | Fe (Max) | O (Max) | N (Max) | C (Max) | H (Max) | Ti(Max) |
ET4 (ASTMB348 Gr.4) | 0.50 | 0.40 | 0.05 | 0.08 | 0.015 | balance |
ET4E(ASTMF67 Gr.4) | 0.50 | 0.40 | 0.05 | 0.08 | 0.015 | balance |
ET4E(ISO5832-2 Gr.4) | 0.3 | 0.45 | 0.05 | 0.10 | 0.0125 | balance |
After the peeling procedure, H content must confirm to the above composition.
Mechanical properties:
Grade | Tensile test (room temp., longitude) | |||
Rm(KSI) | 0.2%Rp(KSI) | A, 4D(%) | Z(%) | |
ET4 (ASTMB348 Gr.4) | Min. 80 | Min. 70 | Min. 15 | Min. 25 |
ET4E(ASTMF67 Gr.4) | Min. 80 | Min. 70 | Min. 15 | Min. 25 |
ET4E (annealed) (ISO 5832-2 Gr.4) | Min. 80 | Min. 64 | Min. 15 | Min. 25 |
ET4E (cold worked) (ISO 5832-2 Gr.4) | Min. 99 | Min. 75 | Min. 10 | Min. 18 |
* These ASTM B348 Gr.4 properties apply to longitudinal sections with a maximum of 64.5cm2.
* These ASTM F67 Gr.4 properties apply to longitudinal sections with a maximum of 1935mm2.
Metallographic
Spec. | Size Range (mm) | Grain Size | Surface |
ET4E (ASTM E112) | 3~300 | Grain Size≥5 | No α layer |
It is more common in these years, especially for medical use. It standard is ASTM F67. For industry, Gr4 titanium bar standard is ASTM B348. Gr4 titanium material is also can be named UNS R50700 and DIN 3.7065 titanium material. The diameter and length can be customized according to your requirements, tolerance can be h8.
The commercially pure form of titanium known as titanium grade 4 bar has the highest strength of any commercially pure titanium. It resists corrosion well in a wide range of environments. Where high strength is required, Grade 4 is used in industrial, medical, and aerospace applications.
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