ORIGINAL: DarZeelon
BW,
The alloys used by manufacturers to make an ABC P+L set differ very little amongst themselves.
The difference is so small, in fact, that the a procedure correctly outlined, by one manufacturer, can closely be followed for engines made by another manufacturer.
The differences in the materials; which are practically the same, may be in cleanliness and purity; not in actual material choice.
I.e. brass is brass, whatever alloy is used. Only some of these alloys are suitable for cylinder sleeves and those used by all engine manufacturers differ so very little that one procedure is suitable for all of them. Especially when some of the break-in processes are written by the company's PR dept..
The same goes for the high-silicon aluminium used in the piston and chromium just is (there are few that still do it - I am not sure what process is used).
All use the same plating process.
The same goes for other coatings (AAC/ABN)...
The procedure outlined for the Magnum ABC engines, was apparently written for ringed engines...
Differences between the manufacturers instructions stem more from ignorance, disregard and 'foreign interests'; than from an actual choice of materials.
Brass is Brass?...... You can NOT be serious....
Architectural Alloy Brass
ASTM B121 Brass
ASTM B134 Brass
ASTM B135 Brass
ASTM B16 Brass
ASTM B21 Brass
ASTM B36 Brass
ASTM B453 Brass
ASTM B455 Brass
ASTM B70 Brass
ASTM Specification Brass
Brass Alloy 260
Brass Alloy 353
Brass Alloy 360
Brass Alloy 385
Brass Alloy 464
Brass Alloy 485
Brass Alloys
Cartridge Brass
Engravers' Brass
Free-Cutting Brass
Free-Machining Brass
Leaded Brass
Naval Brass
Perforated Brass
Polished Brass
Why don't you just use the term "Metal"......
Your ABC engine is made of metal...