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AL1簡介

牌號 AL1
對應標準 BS 3100-1991
一般工程用鑄鋼件
Specification for Steel castings for general engineering purposes
歸類 鑄鋼
標簽 低溫用碳鋼鑄鋼
AL1 化學元素成分含量(%)
成分 C Si Mn P S Cr ② Ni ② Cu ② Mo ② 其他合計 更多
最小值 - - - - - - - - - - Mn/C≥3:1
最大值 0.2 0.6 1.1 0.04 0.04 0.3 0.4 0.3 0.15 0.8
其他單個或其他合計化學成分包括表中未指定值的化學成分。只有在假定存在或在常規(guī)分析中，且有跡象表明其成分將超過規(guī)定值的情況下，才應進行分析。 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%
②殘余元素。 碳當量計算
AL1 機械性能
熱處理或狀態(tài)
抗拉強度
σb
Mpa 		屈服點
σs
Mpa 		斷后伸長率或延伸率
δ
% 		沖擊吸收能量
KV2
J
N或N+T或OQ+T或WQ+T ≥430 ≥230 ≥22 -40°C
≥20
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，超過此尺寸的機械性能應與制造商協(xié)商。
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