不锈钢板厚度标准

钢带厚度的允许偏差

1、中国国家标准(GB) 单位：mm

根据JBT4735-1997<钢制焊接常压容器>的第四页和第二十页的规定和计算公式，楼主这个工况最低取3mm壁厚，考虑储罐整体刚度，个人建议可选用5mm壁厚。

常用不锈钢板尺寸公差范围表304/2B板公差范围表规格大差正常小差0.4MM 0.3-0.320.33-0.370.37-0.390.5MM 0.4-0.420.43-0.470.47-0.490.6MM 0.5-0.520.53-0.560.57-0.590.7MM 0.6-0.620.63-0.670.67-0.690.8MM 0.7-0.720.73-0.770.74-0.790.9MM 0.8-0.820.83-0.870.87-0.891.0MM 0.89-0.90.91-0.940.94-0.991.2MM 1.02-1.081.09-1.151.16-1.181.5MM 1.32-1.381.39-1.451.46-1.482.0MM 1.72-1.791.8-1.861.87-1.92.5MM 2.23-2.362.32-2.422.42-2.473.0MM 2.7-2.772.78-2.852.85-2.9304/NO.1热轧板公差范围表规格大差正常小差3.0MM 2.6-2.752.75-2.852.86-2.94.0MM 3.5-3.63.6-3.753.76-3.955.0MM 4.5-4.64.6-4.754.75-4.956.0MM 5.4-5.65.6-5.755.75-5.858.0MM 7.3-7.57.5-7.657.65-7.8510.0MM 9.2-9.39.3-9.69.6-9.8512.0MM 11.1-11.211.2-11.611.6-11.8514.0MM 13.1-13.213.2-13.613.6-13.85

参考资料：

钢 铁 e 站 通