Stainless SJ POLE SPRINGS on the way

[Mark44]

This spring will work on any stock or aftermarket set up. It will be identical to UMI but in stainless and maybe stoughter( not enough feedback on that yet).

Must be a 400 series ss then so it can be heat trated.

Mark44

Trade you some stuffers for one. LOL:biggrin:

 

[Mike W]

This spring will work on any stock or aftermarket set up. It will be identical to UMI but in stainless and maybe stoughter( not enough feedback on that yet).

Cool. Thanks Brian

 

[sjetrider]

Must be a 400 series ss then so it can be heat trated.

Mark44

Trade you some stuffers for one. LOL:biggrin:

I thought the same thing. But this customer can actually form Full Hard 300 series stainless. I sell him 301 FH and he makes drag springs for oil well from it. This stuff has a rockwell of RC 40-45 and a tensile strength of 185,000min.. If he can form that he can form this from same type and hardness of material. I am sending him a spring and he will test the tension and thickness and hardness to determin what hardness is required. If it were a 400 series it woould rust. No sense it doing that.

No need for stuffers bro, still havent removed mine (damn I am slackin) LOL

 

[Mark44]

Not enough iron in 300 series to be hardened but something else must be going on here that I am not aware of I will read up on 301FH. 300 series chrome -nickel non-hardening austenitic (non-magnetic)

400 is treatable used where corrosion in not severe.
Chrome,hardenable martensitic (magnetic)

Keep us posted on the outcome.

Mark44

 

[sjetrider]

Not enough iron in 300 series to be hardened but something else must be going on here that I am not aware of I will read up on 301FH. 300 series chrome -nickel non-hardening austenitic (non-magnetic)

400 is treatable used where corrosion in not severe.
Chrome,hardenable martensitic (magnetic)

Keep us posted on the outcome.

Mark44

No need to read up bro, I do this for a living. 300 series stainless is a work hardenable grade. We work harden material hear in flat rolled material all day. If you take for instance a .090 thick 301 stainless material and roll it down to a .060 thick you will increase the hardness and physical properties as shown below.
all averages: rockwell / tensile / yield / elong
.090 thick rb 85 / 85,000psi / 35,000psi / 40%
roll above to .060 thick and it will be
rc 42 / 185,000psi / 110,000psi / 8-9%

Where as to achieve this in a 400 series (such as 410ht) you would need to heat treat it. Unfortunateley a 400 series (unless you find 440) is not near as corasive resistant as 300 series due to the Ni and Cr in 300 series.

Very few people can or will form a full hard material, this is the reason people use mostly 1075 carbon or 410 material form it in annealed condition and then heat treat it. Fortunateley my customer can and will form full hard stainless. :Banane01: :Banane01: :Banane01: this means we will get the best of both worlds.

 

[douglee25]

No need to read up bro, I do this for a living. 300 series stainless is a work hardenable grade. We work harden material hear in flat rolled material all day. If you take for instance a .090 thick 301 stainless material and roll it down to a .060 thick you will increase the hardness and physical properties as shown below.
all averages: rockwell / tensile / yield / elong
.090 thick rb 85 / 85,000psi / 35,000psi / 40%
roll above to .060 thick and it will be
rc 42 / 185,000psi / 110,000psi / 8-9%

Where as to achieve this in a 400 series (such as 410ht) you would need to heat treat it. Unfortunateley a 400 series (unless you find 440) is not near as corasive resistant as 300 series due to the Ni and Cr in 300 series.

Very few people can or will form a full hard material, this is the reason people use mostly 1075 carbon or 410 material form it in annealed condition and then heat treat it. Fortunateley my customer can and will form full hard stainless. :Banane01: :Banane01: :Banane01: this means we will get the best of both worlds.

Good info Sjet.

Doug

 

[sjetrider]

check out updates in thread.

 

[Paul]

When do you think they will be done by? I'd like to get at least one from you if not more. The umi spring was one of the only springs that worked with the x-metal pole, and they quit making them. I had to modify a square nose spring and it broke. I could either get one from you or hit the gym... Let me know when they are done.. Thanks

 

[sjetrider]

They will be here Friday bro.

 

[Scorn800]

I just about to pm you last night about these.
I'll take 1.
Let me know where to send or paypal the money.
thanks

 

[h2odesperado]

you've got my interest. I'll take one

 

[douglee25]

I'll take one as well.

Just to make sure, this can be used for both the RN and SN?

Were you able to make this spring stronger than the original?

Doug

 

[djyox]

I am interested in one as well I'm thinking!

 

[sjetrider]

Bump

 

[hangtime]

Got pics

 

[sjetrider]

It appears these will work on a squarenose. However I would not recomend using them with the stock (fiberglass pole). They will work, but may fatigue the fiberglass over time where the spring rests on the pole. This is the reason the UMI squarenose springs have the big "L" shaped section on top portion of spring to spread the presure over larger surface. This is not needed on aftermarket alum. poles or even stock RN poles as they are metal at base.
They are coming in today, will have pics. then.

Here is a comparison between SN spring and RN spring, mine are just like the RN spring.

 

[sjetrider]

Bump

 

[douglee25]

It appears these will work on a squarenose. However I would not recomend using them with the stock (fiberglass pole). They will work, but may fatigue the fiberglass over time where the spring rests on the pole. This is the reason the UMI squarenose springs have the big "L" shaped section on top portion of spring to spread the presure over larger surface. This is not need on aftermarket alum. poles or even stock RN poles as they are metal at base.
They are coming in today, will have pics. then.

Here is a comparison between SN spring and RN spring, mine are just like the RN spring.

View attachment 19765 View attachment 19766

Can I still have the ability to try it and return it if it doesn't work? The reason why I ask is because I have used a RN spring on an AC pole and it didn't work. Yes, it fit in there and provided some lightening of the pole, but the SN spring provides wayyy more tension (lighter pole) because the longer spring end goes further up the pole, which in turn winds the spring tighter.

Doug

 

[sjetrider]

Sure. I will send you one. PM me your address.

thanks
Brian

 

[h2odesperado]

I would like to respectfully take myself off the buying list. I do have a stock pole, and I would be worried about what you said. I will most likely go with a made-for-square spring. Thanks anyways!