... Forming: Hot-Rolled Steel Product DescriptionSpecifications 1, 4140/42CrMo4 alloy steel plate 2, competitive price with best quality 3, ... is 25days within 500tons For super industry structure use, Alloy Structure Steel, Alloy Steel, 4140, 4340, 8620 flat bar Types: 4140 ... / 4340 / 8620H / 41Cr4 / 42CrMo4 alloy steel flat bar Hot rolled: Thickness: 20-130mm Width: Less ...