亚洲一区在线曰日韩下载,99亚洲国产精品精华液,亚洲欧洲国产综合aⅴ无码,欧美亚洲日韩国产系列

①碳含量每降低0.01%，最大錳含量則增加0.04%，允許最大錳含量到1.1%

A=for anneal by heating to a temperature above the AC3 and cool in the furnace
N=for normalize by heating to a temperature above the AC3 and cool in still air
OQ=for quench into oil from a temperature above the AC3
WQ=for quench into water from a temperature above the AC3
AH=for air harden by heating to a temperature above the AC3 and cool in air at a rate fast enough to produce a hardened microstructure
T=for temper by heating to a temperature below AC1
ST=for solution treat by heating to temperature high enough to dissolve and any intermetallic phases followed by a rapid cool.

表中值適用于鑄件截面厚度小于等于500mm情丛，超過此尺寸的機(jī)械性能應(yīng)與制造商協(xié)商鼻御。