material for tree

[cesck85]

Good morning.
due to particular construction needs, I have to develop a tape with 240mm ø10 head roller.
the carpenter to which I trust has at home c40 or aisi 420c, what material could be better for this roller?
Thank you.

 

[New Rider]

c40

 

[meccanicamg]

Good morning.
due to particular construction needs, I have to develop a tape with 240mm ø10 head roller.
the carpenter to which I trust has at home c40 or aisi 420c, what material could be better for this roller?
Thank you.

What do you mean, "I have to develop a tape"? Do you have a coil and with the opening board, go get the tape and have a roll of head?
If you're talking about carpenter, I hope you don't have to weld the c40... otherwise you crumble.

 

[cesck85]

I am drawing a conveyor belt and, for the head roller (folle), I need to have a diameter of ø10 mm maximum for a length (among the bearings) of 240mm.
I had chosen as material the 42crmo4, the carpenter fails to return it in a short time and proposed me the rounds of c40 and aisi 420c already present in stock.
I don't know what the best material can be, even thinking about fatigue. the mechanical resistance makes me prolong for aisi 420c, I do not want it to yield for fatigue to the long.

Thank you.

 

[meccanicamg]

Now it's clear, you have to make a crazy pen at a carpet.
I wouldn't use it anyway.
on the market there are rectified bars in c45/c47 and of that size you find them quickly.
certainly a 42crmo4 or a 39crnimo4 have a very different fatigue behaviour and very little comparable to c45.
If you can't do anything different.... go for c40.

 

[cesck85]

Thank you very much.

 

[Calender]

hi, aisi 420c would not use it unless corrosion/health problems (which between the other and below other type 410). if you have to weld it, on the site of an accredited supplier there is written " if this is necessary, perform a preheat to 200-250°c, and immediately after welding annealing to 700-750°c for 6-8 hours, followed by cooling in air ".for a detailed analysis you should consider forces,geometries,surface status,hardness etc...what you can do only with hand data. .