If an enquiry says only “20 mm Grade 23 titanium square bar for a medical device,” I would not quote it yet. I would ask for the drawing. There is a simple reason. Square stock can be a sensible starting shape for a block-like part, but the word square tells me nothing about implant suitability. […]
Titanium Square Bar for Medical Devices Read More »
Grade 23 titanium is Ti-6Al-4V ELI, the extra low interstitial version of the Ti-6Al-4V alloy. ELI means the melt is held to tighter oxygen and iron limits than Grade 5, and under the ASTM B-series to a tighter nitrogen limit as well. Those interstitials are what make Ti-6Al-4V notch sensitive, so cutting them buys fracture
Grade 23 Titanium (Ti-6Al-4V ELI) Data Sheet: Properties, UNS and Standards Read More »
German and many European drawings identify titanium by Werkstoffnummer rather than ASTM grade. The common mappings are 3.7025 = Grade 1, 3.7035 = Grade 2, 3.7055 = Grade 3, 3.7065 = Grade 4, 3.7165 = Grade 5 (Ti-6Al-4V), 3.7235 = Grade 7, 3.7195 = Grade 9 and 3.7105 = Grade 12. The table below adds
Titanium Material Numbers: Werkstoffnummer to ASTM Cross-Reference Read More »
Field-by-field RFQ checklist for medical titanium bar: F67, F136 and F1472 callouts, interstitials, traceability, NDT and document pack.
Medical Titanium Bar RFQ Checklist: F67, F136, F1472 Read More »
What ASTM F1472 covers, how it differs from F136 ELI, and how ASTM F620 forgings inherit the UNS of their source implant spec.
ASTM F1472 and F620: Standard Ti-6Al-4V and Forgings for Surgical Implants Read More »
Sourcing titanium for Canadian pressure vessels and heat exchangers: how ASME adopts ASTM as SB specs, where CRN fits, and what EN 10204 certs mean.
How Grade 5 (Ti-6Al-4V) lines up across AMS, ASTM, UNS, Werkstoff and TC4, why AMS 4928 is not AMS 4911, and what the EN 10204 cert chain means.
Grade 5 Titanium Certification: What US and UK Industrial Buyers Should Specify Read More »
Compare ASTM, UNS, Werkstoff, French NF and JIS titanium grade names, and see which standard belongs on your PO.
Titanium Grade Cross-Reference: ASTM, ASME, UNS and Werkstoffnummer Lookup Read More »
Neutral titanium vs Inconel guide for chemical, marine and process service: compare temperature, weight, corrosion and cost before quoting.
When Grade 2 titanium starts to crevice-corrode in hot chloride brine, Grade 12 (Ti-0.3Mo-0.8Ni, R53400) extends the limit at a fraction of Grade 7’s cost.
Grade 12 Titanium for Hot Brine and Crevice Corrosion: When Grade 2 Stops Being Enough Read More »