拉制圆形管材的平均外径允许偏差

常用金属工程材料 | 铜及铜合金 | 铜及铜合金管材 | 铜及铜合金无缝管材外形尺寸及允许偏差(摘自GB/T 16866-2006) | 允许偏差

外径,平均外径允许偏差(±)|①,平均外径允许偏差(±)|② 3~15,0.06,0.05 >15~25,0.08,0.06 >25~50,0.12,0.08 >50~75,0.15,0.10 >75 ...