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The Daily Insight

What does PT900 mean on a ring?

Author

Olivia Shea

Updated on March 03, 2026

Platinum
Platinum jewelry should be stamped “PT” for pure platinum or “PT900” or “PT950,” indicating the number of parts per thousand that are pure platinum.

What is platinum alloy used for?

Platinum 950/50 ruthenium is 135HV hard, has an excellent white colour and is malleable and ductile – important properties during manufacture. It is frequently used for casting, fabricating, machining and die striking, and most of the machined wedding bands sold in Europe are made from this alloy.

What is PT950 platinum?

PT950 or Platinum 950 refers to 950 parts per thousand of pure platinum. This is a rare and precious metal known for its strength and brilliance. It is an excellent choice for fine jewellery, making it a perfect setting to showcase precious stones.

What alloy is platinum?

Platinum-iridium alloys are alloys of the platinum group precious metals platinum and iridium. Typical alloy proportions are 90:10 or 70:30 (Pt:Ir). These have the chemical stability of platinum, but increased hardness.

What do s925 mean?

Hi, s925 means that the raw material of the product is 92.5% of sterling silver plus 7.5% of alloy. s925 sterling silver is more sturdy than pure silver and thus become the perfect metal material to produce accessories with its approved gloss and strength. NINASUN FINE JEWELRY DIRECT.

How pure is 950 platinum?

95% pure
950 Platinum is 95% pure, whereas 18ct White Gold (stamped 750) is 75% pure. Other metals add to the overall composition of both metals. Typically Platinum alloys contain either Iridium or Cobalt.

What is the difference between 900 and 950 platinum?

There is no difference in appearance between 950 and 900 Platinum. So, a great way to save money when choosing a Plat ring is to pick 900!

Is platinum a pure metal or an alloy?

Platinum occurs in nature as the pure metal and also in alloys with other metals of the group, principally in the alluvial deposits of the Ural Mountains, of Columbia, and of some parts of the western United States.

What is the difference between the transport pt878 and pt900?

The TransPort PT900 is the latest generation of portable clamp-on flow meter from GE’s Panametrics line of ultrasonic meters. It capitalizes on the ruggedness and superior performance of its predecessor, the TransPort PT878, but delivers a whole new level of intuitive and user-friendly capability based on today’s technology.

What is the percentage of PT in pt900?

Depends on what is the alloy metal used. PT900 is 90% Pt but what is the alloying metal. Hmm.. somehow, double posted… Depends on what is the alloy metal used. PT900 is 90% Pt but what is the alloying metal.

Why choose the GE pt900 ultrasonic flow meter?

The Solution: The GE Panametric PT900 ultrasonic flow meter was chosen for the ease of set up as well as the Android Tablet interface which makes handling data easy. This set-up allows the customer to survey the pumps within their plant efficiently and accurately. Need Help?

Is PT950 ru good for wedding bands?

Pt950/Ru. Platinum 950/Ruthenium is used in the U.S.A., Hong Kong and Europe. It is a good alloy for machining and has found wide acceptance in the manufacturing of wedding bands. Typically, Pt950/Ru is made into tubing, which is then sliced and turned into wedding bands.