Amazon.com: New Alloy 4130 Annealed AMS-6350 Chromoly Steel Sheet - .125" x 18" x 72" Metalworking, Industrial Applications, and Structural Projects with High Strength and Durability SHAP0O05657 : Industrial & Scientific
Amazon.com: 4130 Steel Round Bar Stock - 3/4" Diameter x 12" Length : Industrial & Scientific
Amazon.com: 4130 Steel Round Tube, 1.125" OD x 1.055" ID x .035" Wall x 3 Foot Length : Industrial & Scientific
Amazon.com: 4130 Steel Round Bar Stock - 3/4" Diameter x 12" Length : Industrial & Scientific