What is the difference between stainless steel and duplex stainless steel?

The main differences in composition, when compared with an austenitic stainless steel is that the duplex steels have a higher chromium content, 20–28%; higher molybdenum, up to 5%; lower nickel, up to 9% and 0.05–0.50% nitrogen.

What is a duplex valve?

Duplex Steel Valves are steel valves that contain both the ferrite phase and the austenite phase in the microstructure. Duplex steels combine characteristics of the austenitic and ferritic family of alloys to offer benefits from both with fewer downsides — often at a lower cost than other steel alloys.

What is NACE trim on a valve?

NACE stands for National Association of Corrosion Engineers. NACE valves are used in the gas and oil production, which enables the valve to resist sulfide stress cracking that, might occur otherwise in high sulfur crudes.

What is an SS valve?

Stainless Steel Ball Valves were added to our product line to complement our Camlock Couplings. They are a standard product all made to a similar size and specification, used in industrial applications as well as for more general utility purposes wherever flow needs to be controlled.

What is Super duplex SS?

SuperDuplex stainless like Duplex, is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades. The main difference is that Superduplex has a higher Molybdenum and Chromium content which gives the material greater corrosion resistance.

What grade is Duplex stainless steel?

Alloy Designations Due to excellent corrosion resistance and high strength, the most widely used duplex stainless steel is 2205. The name 2205 comes from a typical composition of 22% Chromium and 5% Nickel.

What is valve Trim type?

High Pressure Control Valve trim consists of three basic items: the stem, ball, and seat. These are the operative parts that control the flow of liquid and gas through a valve. They are also the parts most exposed to process elements, and therefore most vulnerable to wear over time.

What is valve trim number?

Trim Number Removable/replaceable ,functional parts of the valve that are exposed to the flow medium such as stem,closure member and seating surfaces is termed as trim.(Valve body,bonnet,yoke does not include in trim) The number corresponding to material used in API 600 and API 602 are termed as Trim Numbers.

Are stainless steel valves better?

Stainless as a material is much more corrosion-resistant than brass. Stainless Steel Ball Valves will hold up much better to harsher water types. This will ensure a longer lasting valve. Remember that if you want to have more corrosion resistance built into your system, you should be using a full stainless system.

What is PVC ball valve?

PVC (PolyVinyl Chloride) ball valves are widely used plastic shut off valves. The valve contains a rotary ball with a bore at the center. By rotating the ball a quarter-turn, the bore can be aligned inline or perpendicular to the piping to open or block the medias flow.

What material is 2205?

duplex stainless steel
Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel plate with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness.