... Surface treatment BA,2B,NO.1,2D,NO.4,8K,spray of excellent quality and ... the characteristic of corrosion-resisting ,excellent high-temperature strength,outstanding hardenability and No magnetics. ... proof strength(mpa0Tensile strength (mpa)304Max215Min190500to700304LMax215Min180450to680316Max215Min200500to 700316LMax215Min200500to700410max220Lack of data500to700our serviceQuality is the life , Service ...