1010 is not commonly available as bar stock. It is widely available as coiled wire, but not as cut-to-length, straight bars. 1018 and 1020 are the carbon steels with the lowest carbon content that are commonly available as bar stock. Do you absolutely need 1010, or could 1018 or 1020 be suitable alternatives? If you need 1010, then you will need to work with a wire or bar supplier and see what they can offer, maybe a smaller portion of a larger coil or bundle.