Carbon steels - Study guides, Class notes & Summaries

ENTC 207 stainless steel Question and answers already passed 2023/2024 Define stainless steel - correct answer Stainless steels are steels with at least 10% chromium that exhibit passivity in oxidizing environments. intergranular corrosion F.S.S - correct answer s due to chromium depletion, caused by precipitation of chromium carbides and nitrides at grain boundaries. Because of the lower solubility for carbon and nitrogen and higher diffusion rates in ferrite, the synthesized zones of wel...

CWB Level 2 MODULE 8 INTRODUCTIONS TO METALLURGY & MATERIAL SPECIFICATIONExam Question Section 3 From the following, select the ferrous metals; a) wrought iron b) copper c) aluminum d) carbon steel e) stainless steel a) wrought iron d) carbon steel e) stainless steel Exam Question Section 3 What is taconite? a) aluminum alloy b) stainless steel c) pig iron d) iron ore e) low alloy steel d) iron ore Brainpower Read More Exam Question Section 3 ...

API 571 Practice Exam #2 Questions And Correct Answers, 100% Verified Ammonium bisulfide corrosion is an aggressive corrosion occurring in hydroprocessing reactor effluent streams and in units handling alkaline sour water. Several major failures have occurred in hydroprocessing reactor effluent systems due to localized corrosion. The least resistant material to this type of corrosion is: a) aluminum alloys b) carbon steel c) 300 Series SS d) duplex SS B 5.1.1.2.2 a) For materials susce...

The system of classification adopted by the SAE and AISI uses and index where the number 7 refers to: a) chromium steels b) nickel chromium steels c) tungsten chromium steels d) plain carbon steels - c) tungsten chromium steels Compared to low carbon steel, stainless steel has a lower coefficient of thermal expansion a) True b) False - b) False In the production of iron and steel, the blast furnace is the ___________ step in separating the iron from the oxygen a) fourth b) third c) ...

CWB Level 1 Exam (New 2023/ 2024 Update) Guide with Questions and Verified Answers_ 100% Correct_ Graded A QUESTION Which of the following is a typical discontinuity with shielded metal arc welding ? Answer: slag inclusions QUESTION True or false? Larger size SMAW electrodes can be used in the flat posi- tion? Answer: True QUESTION What is the most common power source used for gas metal arc welding?- Answer: constant voltage QUESTION True or ...

CWB Module 22 Latest Update Graded A Complete the following: a) Chromium stabilizes the _____ form of iron b) Nickel stabilizes the _____ form of iron a) bcc b) fcc If a straight chromium steel of 18% Cr and < 0.1 % C is heated to 1000°C will it transform to austenite or remain as ferrite? remain as ferrite What is the predominant structure of an 18% Cr, 8% Ni steel at room temperature? austenite The chromium content of a stainless steel is 20%. Is it likely this is a martensitic grade?...

The 19 damage mechanisms are as follows... 1. ... embrittlement 2. ... fracture. 3. .... fatigue. 4. ..... 5. ... fatigue. 6. ... corrosion. 7. ....insulation. 8. ... water corrosion. 9. ... water .... corrosion. 10. ....dation. 11. ....cracking. 12. ... fatigue. 13. ....cracking. 14. ....corrosion. 15. ....water corrosion. 16. ....cracking. 17. ....damage. 18. .... Corrosion 19. .... attack. - Answer Temper. Brittle. Thermal. Erosion. Mechanical. Atmospheric. Corrosion under. Cooling. Boiler...

Welding Module 5 – Review Questions and Answers Already Passed Nibblers prepare base metal edges using a reciprocating punch. One type of joint used with a plug and slot weld is a lap joint. Common-grade stainless steels typically contain at least 11% chromium. Surfacing welds serve to build up surfaces. Metal cutting through oxyfuel, plasma arc, or air-carbon arc processes is known as thermal cutting. Common grade stainless steels are categorized based on their grain structures. It'...

API 570 Study Guide (Full) Questions and Answers Rated A+ Pressure applied inside a pipe creates stress in the pipe wall. These stresses are highest on which weld orientation? longitudinal weld Per B31.3, how much RT is conducted on circumferential welds of a pipe in normal service? 10% for welded pipe, the normal thickness of under-tolerance is? .010 or 10 mils The corrosiveness of soils can be determined by measuring the soils: Resistivity when qualifying a weld procedure t...

API 571 Practice Exam #1 Questions And Correct Answers, 100% Verified At what oxygen content would many metals become flammable even at low pressures, whereas they are non-flammable in air? a) >10% b) >25% c) 20-40% d) >40% B 4.2.20.1 What area of a heater burning fuel oil with numerous impurities would first suffer damage from fuel ash corrosion. a) shock tubes b) radian tubes c) tube hangers and supports d) convection tubes C 4.4.6.4 c) Hydriding of titanium is a meta...