mikay1814

i kno this is kinda a stupid question but what do the numbers mean in front of chromloy represent for example: 61610 chromloy frame. or sumthin like that

kwhord

https://www.steel.org//AM/Template.cfm?Section=Home

CMcMahon

6061 is aluminum, not chromoly.

mikay1814

o i just made up number cause i saw a chromoly frame that said 4 somthin, so i just assumed that ne number was just a type of chromoly

CMcMahon

Learn to type.

mikay1814

sry, its become a habit to not end sentences and stuff like that, its not because im illiterate, its probably from typing on aim. but i need to work on it so people can actually understand what im saying

CMcMahon

I wonder what R. Lee Ermey would have to say about all this?

bmichaelx

Wow, you've done that way to much. You can stop now.

CMcMahon

Yes, because I always call upon the great Robert Lee Ermey in times of crisis on this message board.

hypersnazz

It's not really a stupid question, most people don't have any idea and as a result many people have no idea what the benefits and pitfalls of many of the common frame and component materials mght be. Steel alloys are typically given a three or four digit number (531, 853, 953, 1020, 4130, 4140) wherein the first one digit of a three digit number or two in a four represent the SERIES (general makeup of the alloy) and the second two numbers actually vary in meaning from series to series. In 41* series steel, for example, the 41* means the steel is mixed with chromium and molybdenum...chrome-moly. The second two digits refer to how much carbon is present in the mix...30 means the alloy is .030% carbon. More carbon results in a harder alloy which is typically also more brittle.

The most common aluminum alloys used in bicycle frames are 6000 and 7000 series, typically heat treated. The principle alloying elements in 6000 seires aluminum are silicon and magnesium and in 7000 series aluminum it's zinc. Once again the last two digits vary in meaning from series to series. And if you've ever wondered what the *next* little designation is, say 7005 *T-6*, that refers to how the alloy is tempered. T means thermally treated, 6 refers to the process or extent. T-6, for example, means the alloy has been heat treated and artificially aged to increase hardness and strength.

bmichaelx

You will always respond to a post that you don't have a response to, and say some random persons name to try and end a heated conversation/argument, in hopes that they will not know who they are, ultimatly making them stop arguing. It gets realy anoying, If you don't have a response to someones post, like the apology you got from Makay1814, then don't say anything.

Brian

Snazzy knows his alloys.

poonster18

queensrider86

fuk you. why did you have to come back you idiot.