2 Terms and Definitions

Question 1

A term that refers to a type of metallurgical structure normally found in 300 series stainless steel (SS) and nickel-based alloys. These materials have a ____________ crystallographic structure and are generally nonmagnetic.

Answer 1

Austenitic; face centered cubic

Question 2

austenitic stainless steels commonly include Types:

Answer 2

304, 304L, 304H, 309, 310, 316, 316L, 316H, 317, 317L, 321, 321H, 347, and 347H. The “L” and “H”

Question 3

An alloy consisting primarily of iron (Fe) with a small amount of carbon (C). Do not have alloying elements intentionally added.

Answer 3

carbon steel

Question 4

Chemicals used in amine treating to remove H2S and CO2 from hydrocarbon streams.

Answer 4

diethanolamine (DEA) , diglycolamine
(DGA), methyl diethanolamine (MDEA), monoethanolamine (MEA)

Question 5

A family of stainless steels that contain a mixed austenitic-ferritic structure including Alloys 2205, 2304, and 2507.

Answer 5

duplex stainless steel

Question 6

A term that refers to a type of metallurgical structure normally found in carbon and low-alloy steels and many 400 series SS. hese materials have a ___________ crystallographic structure and are generally magnetic.

Answer 6

Ferritic; body centered cubic

Question 7

Ferritic stainless steels including Types

Answer 7

405, 409, 410S, 430, 442, and 446

Question 8

family of steels containing up to 9 % chromium and other alloying additions for high temperature strength and creep resistance. These are considered Ferritic steel

Answer 8

Low-alloy steel

Question 9

____________ A term that refers to a type of hard metallurgical structure normally found in some 400 series SS including Types

Answer 9

Martensitic; 410, 416, 420, 440A, 440B, and 440C.

Question 10

_____________ A family of alloys containing nickel as a major alloying element (>30 % Ni) including Alloys __________

Answer 10

Nickel-based; 200, 400, K-500, 800,
800H, 825, 600, 600H, 617, 625, 718, X-750, and C276.

Question 11

A family of carbon steels in which higher strength levels are achieved by the addition of moderate amounts of alloying elements such as titanium, vanadium, or niobium in amounts of less than 0.1 %. They can be more sensitive to cracking during fabrication from hydrogen embrittlement (HE)

Answer 11

high-strength low-alloy steel (HSLA steel)