不锈钢扁钢Stainless steel flat steel热轧扁钢尺寸范围及允许偏差（JBG4303-1998）Size ranges and allowable deviation of hot-rolled flat stkkl规格specification允许偏差allowable deviation20*3-12  1宽度width≤50厚度thickness≤20厚度偏差thickness deviation±0.425*3-1530*3-1640*3-1645*4-1650*4-1660*4-1665*4-161宽度width≤50厚度偏差thickness deviation±0.82 50＜宽度width≤75  宽度偏差width deviation±1.23 75＜宽度width≤150  宽度偏差width deviation±1.570*5-1675*5-1680*5-1690*5-16100*5-16