CroMo Vs Steel frames
Sorry, that was supposed to be helpful but probably wasn’t. The cro mo refers to the alloy that is added to the steel. It may, or may not, make it heavier than some other steel alloys as it depends what you want to compare it with. Can you refine the question a bit?Posted 4 years agorichmtbSubscriber
CroMo is a type of steel. Its alloyed with Chromium and molybendum to make it stronger and ligher than normal carbon steel which is iron alloyed with carbon. This somtimes goes by the name of HiTen Steel (for High Tensile) when used in bicycle frames.
Only very low budget bikes use HiTen frames, most are CroMo except for really high end tubsets like Reynolds 753 which use Manganese Molybendum insteadPosted 4 years agojohnellisonMember
Just to confuse the issue, not all CroMo steel is the same; and some steel frames are a mix of CroMo and high tensile.
A CroMo steel frame has more “spring” to it when riding whereas a high tensile one will feel “dead”. And bend more easily. And feel like its made from gas-pipe. And put you off cycling forever.Posted 4 years agoswtbikesMember
All steel weighs roughly the same but higher quality steel alloys are far stronger, allowing you to make the walls thicker thus lighter.
Another thing with high quality steel is its feel. The thinner walls of high quality steel (CrMo) alloys take a lot of trail impacts out, the ‘dead’ feel you get with ‘gas pipe’ cheap steel frames.
i’ve just made my own frame using Reynolds 631 and its far less punishing than the previous steel frame I owned.Posted 4 years agoMacavityMember
Cromoly steels have less than 0.3% carbon content. Lower carbon content gives inproved weldability. eg 4130 can have upto 0.3% carbon.Posted 4 years ago
Carbon steels (mild steels etc) can have up to 2% carbon content, and poorer welability (postweld strength can be low).
Over approx 3% carbon content, its generally called cast iron, and its not easily welded and its a lot more brittle.
The topic ‘CroMo Vs Steel frames’ is closed to new replies.