- General Form of Designation. A. Carbon Content in Points or hundredths of percent B. Major Alloying Elements XX C. Carbon Content in Points or thousandths of percent 7 8 9 10 D. American Iron and Steel Institute 7. E. Iron Content in Points or hundredths of percent 8. F. Range of Carbon 9.| G. American Institute of Steel and Iron 10. H. Specific Alloy in the Group

- General Form of Designation. A. Carbon Content in Points or hundredths of percent B. Major Alloying Elements XX C. Carbon Content in Points or thousandths of percent 7 8 9 10 D. American Iron and Steel Institute 7. E. Iron Content in Points or hundredths of percent 8. F. Range of Carbon 9.| G. American Institute of Steel and Iron 10. H. Specific Alloy in the Group

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter2: Measurement, Materials, And Safety

Section2.7: Heat Treatment Of Metals

Problem 2RQ: Direct hardening can be performed on steel containing at least________ carbon.

See similar textbooks

Similar questions

11. Identify the correct alloy that can be case hardened from the following options a. Aluminum b. Carbon Steel c. Mild Steel d. Cast Iron 12. British Standard code BS2875 refers to a. Izod impact test b. Composition and properties of copper and copper alloy c. Graphical symbols used in technical drawings d. Charpy impact test
20/. In the BS designation of steel, if the first three digit is 532, then the major alloying element is _________ a. vanadium b. chromium c. nickel d. molybdenum
7. What is important difference betiveen plain carbon steel and alloy steel on. continuous cooling transformation (CCT) diagram
100) which is not one of the general properties shown by almost every metal?A) satietyB) high hardness and strengthC) good wear resistanceD) good thermal conductivityE) good electrical conductivity 105) How does aluminum yield strength change as a result of annealing?A) first decreases and then decreasesB) first increases and then decreasesC) increasesD) decreasesE) does not change
T or F -The α-phase is rich in iron. -The cementite phase is rich in iron -Pearlite steel has a lamellar microconstituent -AISI 1018 is a hypoeutecoid steel alloy -The Co of a hypoeutectic alloy is more than CE -Eutectoid means eutectic-like -Eutectic alloy means easy melting
State four alloying elements which are combined together with iron and carbon in the manufacture of high speed steel
172) Which production method is used for cooling with water spray?A) Blast furnaceB) electric arc furnaceC) continuous castingD) basic oxygen furnaceE) centrifugal casting 173) Which is used to describe the mechanical properties of materials?A) yield strengthB) satietyC) ductilityD) strain unit shape curveE) tensile strength 174) Bronze alloy, which element is the main alloying element?
Match each statement with a letter -In the peritectoid reaction -In the Peritectic reaction: -In the Monotectic reaction: -In the Eutectoid reaction: -In the Eutectic reaction: a. a liquid phase transforms into two solids when it is cooled down b. a solid phase transforms into two different solids when it is cooled down c. a liquid phase transforms into a new liquid phase and a solid phase d. Two solid phases transform into a new single solid phase e. A solid phase and a liquid phase transforms into a solid phase
133) For which of the mechanical properties is the slope method used?A) ductilityB) elastic modulusC) hardnessD) tensile strengthE) yield strength 134) Which of the following contains carbon between 0.77% and 2.11%?a) Ductile ironb) Aluminumc) Gray cast irond) Steele) Magnesium135) Which is the main alloying element of 7000 series aluminum alloys?a) Mnb) Znc) Sd) Cre) Mg
There are various types of steel. Identify SEVEN (7) characteristic of high carbonsteel
27)Explain the coding system of the material 529551.Specify the clssification of carbon 000 to 199Carbon and carbon-manganese type steels. The number represents hundred times the manganese content 200 to 240Free-cutting steels, the second and third numbers representing hundred times the mean sulphurcontent 300 to 499Stainless and heat resistant valve steels 500 to 999Alloy steels with different groups of numbers within this range being allocated to different alloys Alloys 500 to 519 have nickel as the main alloying element, 520 to 539 have chromium. A Steel is supplied to a chemical composition determined bychemical analysis H The steel is supplied to a hardenability specification M The steel is supplied to mechanical property specifications S The steel is stainless
•23- Which type of rockwell hardness is suitable for non-ferrous metals?A) BB) EC) AD) CE) D 31- Which of the following process steps do the particle processing techniques of metals and ceramics include?A) meltingB) tattooC) plastic deformationD) machiningE) sintering