18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
Correct answer: A. Tungsten, chromium and vanadium
- A. Tungsten, chromium and vanadium
- B. Tungsten, vanadium and chromium
- C. Vanadium, chromium and tungsten
- D. Chromium, tungsten and vanadium
Explanation
The designation 18-4-1 for high-speed steel refers to approximately 18% tungsten, 4% chromium and 1% vanadium. Tungsten provides hot hardness, while chromium and vanadium improve hardenability and wear resistance.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Molten phthalic anhydride is stored in a/an _______________ vessel?
Cermets are ______________ materials?
Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
Generally _____________ are subjected to galvanising (i.e., zinc coating)?
Which of the following is a light alloy ?
Which of the following is not a non-ferrous alloy ?