The permanent marking '4BA240' tells you that the cylinder is made of ___________.

Prepare for the CTR 156CT Propane Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The permanent marking '4BA240' tells you that the cylinder is made of ___________.

Explanation:
The markings on a gas cylinder encode both the material and the pressure rating, so you can quickly identify what the cylinder is made of and what pressure it can safely handle. In this case, the first part, 4BA, is the material designation and identifies alloy steel as the construction material. That tells you it’s not stainless steel, aluminum, or copper. The trailing 240 indicates the service pressure rating (the cylinder’s rated working pressure). So, this stamp shows an alloy steel cylinder designed for that pressure.

The markings on a gas cylinder encode both the material and the pressure rating, so you can quickly identify what the cylinder is made of and what pressure it can safely handle. In this case, the first part, 4BA, is the material designation and identifies alloy steel as the construction material. That tells you it’s not stainless steel, aluminum, or copper. The trailing 240 indicates the service pressure rating (the cylinder’s rated working pressure). So, this stamp shows an alloy steel cylinder designed for that pressure.

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