4130 Chromoly Steel Vs Reynolds 853

Not all chromoly steel is specifically 4130 but you see it pretty often.

4130 chromoly steel vs reynolds 853.

I was and still am slightly confused there is a lot of steel out there chromoly 4130 reynolds from 501 to 953 columbus thron to spirit so i have googled pilfered condensed and accumulated some of the findings. 853 is still reynold s best steel. 520 is just standard cro mo 4130 i think. I am no expert for more info click on links.

If you look at a piece of cheap steel tubing you will see the join as a different coloured line running down the tube. On one are offering some amazing prices on a 4130 chromoly steel inbred frame at ukp 139. See reynolds and on one under the materials bit 853 does seem fairly impervious to rust though bare patches on. The reynolds tube company was founded in 1898 by john reynolds in birmingham england but traces its origins back to 1841 when john reynolds set up a company manufacturing nails.

The joints actually gain strength as they cool. 853 is heat treated to give high strength and damage resistance and the steel properties allow thin walls to be used so that lower weight but fatigue resistant structures can. 853 has a higher strength to weight ratio has better fatigue strength and stiffness about 30 greater than 4130. So i have a real desire i tell my wife it s a need for a thin steel tubed ss specific 29er frame.

It s a general all purpose tube less expensive than 853. The benefits of air hardening steels are particularly noticeable in the weld area of reynolds 853 where unlike conventional steel alloys strength can actually increase after cooling in air immediately after welding. Heat treating can improve material properties that s heating and cooling the material in a specific way. They follow after explanation.

This is discuss about cromoly 4031 vs reynold 531 from another forum chromium molybdemum sp is an excellent steel alloy and the 4130 denotes a specific forumulation of alloy like 6061 aluminum is a specific alunimum alloy as is 7005 etc. Reynolds makes a 4130 called reynolds 525. I was helping a friend build his this week and it really is a lovely bike. For example the old reynolds 531 and all better tubes from reynolds are seamless as is their cr mo 520 and 525 identical except 520 is license built in the far east so not all 4130 cr mo is equal.

853 cannot be brazed only welded. Reynolds 853 steel ss frames posted in fixie singlespeed. Reynolds 525 and 725 use the same base alloy very similar if not the same as 4130 but 725 has improved properties due to heat treatment.