MV Abitur Metalltechnik Practice Questions - Mecklenburg-Vorpommern Vocational Gymnasium Abitur Metal Technology (Metalltechnik) Exam

A steel is designated C45. What does the '45' principally indicate in common European carbon-steel naming?

45% chromium Yield strength of 45 MPa 45 Rockwell C hardness guaranteed Approximately 0.45% carbon by mass

Correct Answer:

Approximately 0.45% carbon by mass

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