4140 and 4150 - KROMITE #3 AND MIRRALOY - modified grades of high strength alloy. Last month, we talked about the word “modification” appearing on a Mill Test Report (MTR). This month I have been asked to clarify just how…
Is all 4140 alloy steel the same? It is common for 4140 alloy steel to be supplied in either the annealed (soft) condition, or Quench & Tempered (Q & T), the hardened condition. The hardened condition is used where added…
Iron ore, found lying around near the surface of the earth, can be heated and primitively refined (a cave man could do it) to become iron. Iron is soft and pliable, great for lots of things and better than a…