How do you identify cast-iron?

2:346:53IS IT CAST IRON OR CAST STEEL? 5 Ways To identify Before - YouTubeYouTubeStart of suggested clipEnd of suggested clipSuggested clip · 57 secondsHere what I want you to do is watch the color in the shape of the sparks. Youll see that on castMoreHere what I want you to do is watch the color in the shape of the sparks. Youll see that on cast iron that the color tends to be the brightest at the end of the spark.

What does gate mark mean on cast-iron?

Cast iron is made with a sand mold in which liquid iron needs to be poured into it (or injected into the mold.) The liquid iron then hardens and the mold is removed from around it. In the 1800s the iron was poured in via a line on the bottom of the mold which left the line, or gate mark, on the iron once it hardened.

How can you tell if a cast-iron skillet is vintage?

5:4328:47Identifying Old Cast Iron Pans - YouTubeYouTube

How do I know if my tub is steel or cast iron?

2) Tap the tub with your fingernail, and if it has a light, tinny sound (tak, tak, tak), its steel; if it sounds more solid, resonant or bell-like, its probably cast iron.