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.
①表中值適用于鑄件截面厚度小于等于500mm灵寺,超過此尺寸的機(jī)械性能應(yīng)與制造商協(xié)商曼库。
②如果買方要求對此牌號進(jìn)行沖擊試驗,則不進(jìn)行彎曲試驗