what do they mean?

cast
cast mg
forged
spun
ssf

which one is better? and what does stock rims usually use?

 

stock rims are usually cast steel... good wheels are usually forged to make them light and strong...

 

i believe forged are the best as they are made using liquid metal put in a mold, cast being next as they are cut out of a block of aluminum making it weaker

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2-99 &raquo;</TD></TR><TR><TD CLASS="quote">stock rims are usually cast steel... good wheels are usually forged to make them light and strong...</TD></TR></TABLE>Steelies are not cast. Maybe the rim part is rolled, the disk is stamped, & they're welded together. Your lower control arms & brake rotors are cast. See how much different they look vs. steel wheels?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by roadrunner_2k2 &raquo;</TD></TR><TR><TD CLASS="quote">i believe forged are the best as they are made using liquid metal put in a mold, cast being next as they are cut out of a block of aluminum making it weaker </TD></TR></TABLE>Cast is made by pouring metal into a mold. Forged are hot-worked & cold-worked; kinda like pressed or hammered while they're hot, but not molten. 'Cut out of a block of aluminum' sounds like billet wheels. The 'block' that a machinist starts from is called a billet.

 

Jim Blake is right except for for forged wheels use huge presses that can weigh anywhere between 5000 to 15000 pounds to change the structure of the metal.