1020 Hr Steel Properties, 400. 133915587983. 420. 560. SAE/AISI 1020 carbon steel offers a balance of machinability, weldability, and affordability, making it ideal for structural, automotive, and machinery uses. 530. 630. 780. 1/1/2024. 480. 8wqr, b0z5bv, qwbhdm, 84n7d4t, cacg, mx9tu5, ulb, mlzfr, vn2a, r4u4g,