This standard specifies contents of the raw materials and requirements,inspection requirements,grade and evaluation of microstructure after quenching,etc.of commonly used medium-carbon structural steel and medium-carbon alloy structural steel.
This standard is applicable to the examination and evaluation of microstructure of medium- carbon structural steel and medium-carbon alloy structural steel parts after quenching and tempering.
This standard is not applicable to the evaluation of microstructure containing decarburization,overfiring and under austempering state of medium-carbon structural steel and medium-carbon low-alloy structural steel parts after quenching and tempering.
定价: 816元 / 折扣价: 694 元 加购物车
This part of GB/T 34474 specifies the method for determination of banded structure (including ferrite banding and class Ⅱ structure banding) of hypoeutectoid steels based on comparison procedure.
This part is applicable to the determination of banded structure of wrought hypoeutectoid steels.Carbide banding of hypereutectoid steels is not within the scope of this document.
定价: 648元 / 折扣价: 551 元 加购物车