Pure GR1 Titanium Medical Sheet
Nov 26, 2025
Product Description
GR1 titanium plate is widely used in chemical, petroleum, aerospace, medical, and other industries due to its low density, light weight, corrosion resistance, non-magnetic, and non-toxic properties. Grade 1 is the softest and most formable of the commercially pure titanium grades, which makes it particularly suitable for applications where the sheet must be pressed, deep drawn, or formed into complex shapes without cracking.
Chemical Composition (Max, Percent)
| Grade | Fe | C | N | H | O | Residuals each | Total |
|---|---|---|---|---|---|---|---|
| Gr1 | 0.20 | 0.08 | 0.03 | 0.015 | 0.20 | 0.1 | 0.4 |
The composition is tightly controlled because oxygen, nitrogen, and carbon raise the strength of titanium but reduce its ductility. For a grade that is chosen mainly for formability and corrosion resistance, keeping these interstitial elements low is the key to consistent behavior during fabrication.
Mechanical Properties
| Grade | Tensile strength (MPa, min) | Yield strength (MPa, min) | Elongation (%, min) | Bend test |
|---|---|---|---|---|
| Gr1 | 240 | 138-310 | 24 | 1.5T-2T |
The moderate strength and high elongation of GR1 mean that the sheet can be formed at room temperature with standard tooling. The bend test requirement confirms that the material will tolerate tight radii without surface cracking, which is important for both sheet-metal fabrication and the manufacture of implant components that are shaped to match the anatomy.
Processing Route
Titanium sponge, compacting electrode, melting, ingot, forging, finish forging, slab, hot rolling, hot-rolled sheet, cold rolling, pickling, and cold-rolled sheet. Each step is controlled to preserve a clean, uniform microstructure: sponge is compacted into electrodes and melted, usually more than once, to homogenize the ingot; the ingot is forged and rolled into slab; hot rolling reduces the slab to an intermediate gauge; and final cold rolling achieves the required thickness, surface, and tolerance. Pickling removes the oxide layer formed during hot working so that the finished sheet has the clean, bright surface expected for medical and chemical service.
Why GR1 Is Used in Medical Applications
For medical sheet applications, the material is normally supplied to ASTM F67, the standard for unalloyed titanium for surgical implant applications. Pure titanium is non-toxic, corrosion resistant in body fluids, and compatible with bone and tissue, which is why it has a long history in surgical implants and instruments. Grade 1 is favored where the component must be shaped by plastic deformation, because its ductility allows the manufacturer to produce thin, intricate parts while keeping the surface quality needed for implantation.
Applications Across Industries
In the chemical and petroleum industries, GR1 sheet is fabricated into heat exchangers, reactor linings, and piping components that resist aggressive media; in aerospace it contributes to lightweight structures and non-structural parts; and in architecture and marine engineering it is valued for long service life in corrosive environments. Because the same basic properties of corrosion resistance and biocompatibility are needed across these fields, one well-controlled sheet product can serve very different markets.
Frequently Asked Questions
What is pure GR1 titanium sheet used for? Chemical equipment, petroleum processing, aerospace components, and medical devices requiring biocompatibility.
What is the tensile strength of GR1 sheet? 240 MPa minimum, with 24 percent minimum elongation.
What standard applies to medical-grade GR1? ASTM F67 grade 1 for surgical implant applications.
Why is grade 1 more formable than other pure titanium grades? Chemical equipment, petroleum processing, aerospace components, and medical devices requiring biocompatibility.
How is GR1 medical sheet produced? 240 MPa minimum, with 24 percent minimum elongation.
Why is pickling part of the process? ASTM F67 grade 1 for surgical implant applications.
