Thanks Dhengr and Cockroach, both inputs have merits. Regarding books, if someone has a suggestion of a real good metals book, I'd gladly buy it. My best metals book I bought early in my career illustrates 4340 impacts at different temperings and cold temps, but not 4140. By its omission, I'm...
Thanks Cockroach, but this engineer needs some good literature to that fact. We would be rolling 100 tons into product, I'd like to see test data including chemistrys, I understand we might have to control Sulfur and Phosphurous lower in order to obtain our desired Charpy. Any web sights or...
I'm looking for Charpy toughness of Q&T 4140 steel tempered at various temps, specifically Charpy at -40F. Strengths need to meet minimum 120/150ksi yield/tensile, 12/25 El/RA. Can anyone give me direction of where to look, this mechanical engineer has limited metals books. Thanks in advance for...
