4130 Alloy Steel Round Tube, Material Alloy Steel, Material Grade 4130, Fabrication Seamless, Heat Treatable Yes, Mechanical Finish Mill, Inside Diameter 1.5 in, Outside Diameter 2 in, Overall Length 12 in, Wall Thickness 0.25 in, Yield Strength 63,100 psi, Machinability Not Rated, Rockwell Hardness B82, Appearance Metallic, Application Fasteners, Gears, Structural Frames, Includes Material Certificate Yes, Outside Diameter Tolerance +0.006 in/-0.005 in, Shape Round Tube
4142 Alloy Steel Plate, Material Alloy Steel, Material Grade 4142, Heat Treatable Yes, Heat Treatment Pre-Hardened, Mechanical Finish Mill, Overall Length 18 in, Overall Width 10 in, Thickness 0.75 in, Thickness Tolerance +/-0.001 in, Yield Strength Not Rated, Fabrication Hot Rolled, Rockwell Hardness B94, Machinability 50 Percent, Tensile Strength Not Rated, Width Tolerance +0.005 in, Standards ASTM A322, Includes Material Certificate Yes, Appearance Metallic, Brinell Hardness 187, Shape Plate