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为贯彻国发(1984)28号文《关于我国统一实行法定计量单位的命令》要求,且根据 GB3100—82《国际单位制及其应用》的规定,压力及应力的单位应用帕[斯卡],单位符号为 P_a,或帕的十进倍数,当设计压力采用 MP_a 为单位,许用应力6、抗拉强度及屈服强度也同样采用 MP_a 作单位时,因1MP_a=10~6P_a=100/9.80665kgf/cm~2=10.197kgf/cm~2=1/9.80665kgf/mm~2=0.10197kgf/mm~2,在进行锅壳式锅炉受压元件强度计算时,
In order to carry out the requirements of Guofa (1984) No. 28 “Order on Uniform Implementation of Statutory Units of Measurement in China”, and according to the provisions of GB3100-82 “International System of Units and Applications”, the unit of pressure and stress shall be Pars [ , The unit symbol is P_a, or the decimal multiples of Pascal, when design pressure adopts MP_a as unit, allowable stress 6, tensile strength and yield strength also use MP_a as unit, because 1MP_a = 10 ~ 6P_a = 100 / 9.80665 kgf / cm ~ 2 = 10.197kgf / cm ~ 2 = 1 / 9.80665kgf / mm ~ 2 = 0.10197kgf / mm ~ 2 in the calculation of the strength of the compression element of the shell and tube boiler,