Alloy Compositions

Chemical Composition LM2 LM6 LM20 LM24 LM25 Pyral Copper 0.7 - 2.5 0.1 Max 0.4 Max 3.0 - 4.0 0.2 Max 0.2 Max Magnesium 0.3 Max 0.1 Max 0.2 Max 0.3 Max 0.2 - 0.6 0.1 Max Silicon 9.0 - 11.5 10.0 - 13.0 10.0 - 13.0 7.5 - 9.5 6.5 - 7.5 0.5 Max Iron 1.0 Max 0.6 Max 1.0 Max 1.2 Max 0.5 Max 0.5 - 0.8 Manganese 0.5 Max 0.5 Max 0.5 Max 0.5 Max 0.3 Max 2.25 - 2.75 Nickel 0.5 Max 0.1 Max 0.1 Max 0.5 Max 0.1 Max 2.25 - 2.75 Zinc 2.0 Max 0.1 Max 0.2 Max 3.0 Max 0.1 Max 0.1 Max Lead 0.3 Max 0.1 Max 0.1 Max 0.3 Max 0.1 Max 0.1 Max Tin 0.2 Max 0.05 Max 0.1 Max 0.2 Max 0.05 Max 0.05 Max Titanium 0.2 Max 0.2 Max 0.2 Max 0.2 Max 0.2 Max 0.1 - 0.2 Aluminium Remainder Remainder Remainder Remainder Remainder Remainder

Alloy Equivalents

 

UK	LM2	LM6	LM20	LM24	LM25
ISO	AlSi10Cu2Fe	AlSi12 AlSi12Fe	AlSi12Cu AlSi12CuFe	AlSi12Cu3Fe	AlSi7Mg
EN 1706 AC	46100	44100	47000	46500	42000
France	A-S9U3-Y4	AS 13	A-S12-Y4	A-S9U3A-Y4	A-S7G
Germany		G-AlSi12 DIN 230	G-AlSi12(Cu) DIN 231	G-AlSi8Cu3 DIN 226	G-AlSi7Mg
Italy	UNI 5076	UNI 4514	UNI 5079	UNI 5075 UNI 3601	UNI 3599
USA AA/ASTM	A 384	A 413	A 413	A 380	A356
USA SAE	383		305	306	323
Japan	ADC 12	AC 3A		AC 4B ADC 10	AC 4C
RSA	SA 46	SA 22	SA 24	SA 44	SA14
Australia		BB401 CC401 EA401	DA401	CA313 BA323 AA325	AA601  AC601 CC601  DA601