Cash basis bids for hard red winter wheat were steady in the US Plains on Tuesday, dealers said. Protein premiums for railcar wheat to and through Kansas City rose 5 cents a bushel for 11.80 percent protein wheat through 12.80-pro wheat supplies. At the Chicago Board of Trade, KCBT hard red winter wheat for March delivery traded at $6.82-1/4 per bushel Tuesday morning and May wheat traded at $6.80.