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A3簡介

牌號 A3
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 碳鋼鑄鋼
A3 化學元素成分含量(%)
成分 C Si Mn P S
最小值 - - - - -
最大值 0.45 0.6 1 0.05 0.05
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% 碳當量計算
A3 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
A或N或N+T或OQ+T或WQ+T ≥540 ≥295 ≥14 ≥18
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。
近似對照表 鑄鋼
中國 日本 美國 國際標準組織 德國 俄羅斯 英國
GB JIS ASTM UNS ISO DIN EN/DIN W-Nr. GOST BS EN/BS
ZG310-570 SCC5 80-40 J05002 340-550 GS-70
GS-CK45 		1.0554
1.1191 		45Л A3
AW2
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