Steel Rod Suggestion

[D45]

I need to find a new 7/8" thick rod for this press......I assume solid will be the strongest

What type of steel?

Stainless steel or no?

I see I can get solid rod in MANY types:
Cold rolled 12L14 Steel
Chrome Moly 41L40 Steel
H13 Tool Steel
1144 Fatigue Proof Steel
4130 Steel Rod
8620 Alloy Steel Rod
4140/4142 Steel Rod

 

[timewarp]

I think I would just find a 7/8" bolt preferably grade 8 probably be cheaper than buying a piece of rod.

 

[D45]

A grade 8 bolt that is 36" long......no

I need a new rod for the lever

 

[Lelandwelds]

That's what, a 6 ton? Nice! They're still in business. Whats a new arm cost? 36: 1 leverage?

I bet the factory uses something cheap like 1045. I have had good luck with 4340 or 5160. 8620 is for case hardened transmission shafts. 4130 isnt that strong for the dollar premium. I have never used the others.

I would use something simple like 1045. Or pretty much any .040 to .050% carbon steel. I would avoid 300 series stainless.

 

[Dragfluid]

Got a rosebud for the acetylene torch? Heat it up and straighten it. Only if it appears to have caused it to weaken, then get a new one.

BTW, I have a Drake also. Very similar to that size. Very handy!

 

[D45]

That's what, a 6 ton? Nice! They're still in business. Whats a new arm cost? 36: 1 leverage?

I bet the factory uses something cheap like 1045. I have had good luck with 4340 or 5160. 8620 is for case hardened transmission shafts. 4130 isnt that strong for the dollar premium. I have never used the others.

I would use something simple like 1045. Or pretty much any .040 to .050% carbon steel. I would avoid 300 series stainless.

Yes, the Dake 201 is a 6 Ton model

 

[D45]

Got a rosebud for the acetylene torch? Heat it up and straighten it. Only if it appears to have caused it to weaken, then get a new one.

No torch, and the lever is twisted all over and bent up good

I cut it off

 

[zebrabeefj40]

I would use any of the 41xx series steels or cheap 1xxx series. Don't bother with stainless; it isn't as strong as the cheapest carbon steel. Don't bother with the leaded steels either: they rust faster than non-leaded steels. Leaded steels have an "L" in the middle of the alloy number. Lead makes the alloy machine nicer but won't help in your application.

Nick

 

[Cahark]

I would replace it with something cheap and cold rolled. 1018 would be fine.


Sent from my iPhone using Tapatalk

 

[Flail]

McMaster.com 1144 stressproof 7/8” X 36” is about $18.

 

[MOwens]

4140, 4340, and 4140 Prehard would be a good chioces too.

 

[timewarp]

A grade 8 bolt that is 36" long......no

I need a new rod for the lever

Sorry, my mistake, I thought you needed the pivot.

 

[D45]

Still shopping around and researching

Strength Easy-to-Machine Carbon Steel (1144)
This medium-carbon steel offers high yield strength and hardness, even without further heat treating.
Its composition also results in fast, reliable machining and increased tool life.

Yield Strength 100,000 psi
Hardness Hard (Rockwell C230
Meets A29, A108 , A311
Rods are stressed releved to minimize warping during machining.

============================

Ultra-Machinable Carbon Steel (12L14)
When superior machinability is needed, 12L14 is the steel of choice. Lead added to the material acts as a lubricant for very fast machining and excellent surface finish. It's used to fabricate a wide variety of machine parts.

Yield Strength: 60,000 psi
Hardness: Medium (Rockwell B84)
Meet ASTM A29 and A108

==================================

General Purpose Low-Carbon Steel (1018)
One of the most widely used types of steel, 1018 low-carbon steel is weldable, machinable, and can be surface hardened by heat treating. It is suitable for a variety of applications, such as structural and power transmission components.

Yield Strength: 54,000 psi
Hardness: Medium (Rockwell B70)
Can be surface hardened to C60
Meet ASTM A108

 

[PT Doc]

Stress proof should be fine but then again with 3 feet you will be able to put some serious gronk on any shaft.

 

[skipnay]

Wouldn't tubing be stronger then something solid? I have a solid digging bar that I can bend. The one I made is tubing and I can't bend it. Not yet I haven't.

 

[D45]

Stress proof should be fine but then again with 3 feet you will be able to put some serious gronk on any shaft.

True.........and it will be actually closer to 32"

 

[D45]

Wouldn't tubing be stronger then something solid? I have a solid digging bar that I can bend. The one I made is tubing and I can't bend it. Not yet I haven't.

Very good point

Which will have the least amount of deflection, solid or tube (HREW, DOM, etc)

 

[D45]

7/8" DOM:
Tensile Strength: 87,000 PSI
Yield Strength; 72,000 PSI

Still seems like solid 1144 is stronger

 

[skipnay]

I bet this 156 wall tubing would be strong!!!

https://www.metalsdepot.com/steel-products/steel-round-tube-dom

 

[D45]

I bet this 156 wall tubing would be strong!!!

https://www.metalsdepot.com/steel-products/steel-round-tube-dom

Tensile = 80,000 +/-
Yield = 70,000 +/-

Still not what 1144 can offer

 

[MOwens]

4140 prehard (4140ht) is in the 150kpsi range.

 

[matt_i]

I would just put 1018 in there. All my arbor presses have that. Imo, if you have to hang from the press arm then you need a bigger press, rather than a medium carbon steel shaft...

 

[skipnay]

Tensile = 80,000 +/-
Yield = 70,000 +/-

Still not what 1144 can offer

The smallest is 0.058 wall. Being the 0.156 wall that is almost 3 times the thickness. I don't know the strength of steel and wall thickness but something tells me if something is almost 3 times as thick. It should be a lot stronger. Good luck. I will keep watching this thread to learn.

 

[longez]

Don't use tubing (DOM or welded) unless you want to do this task all over again. For any given alloy, solid is stronger than a shape. Any of the low carbon 101x, 1144 or 41xx are fine with a 7/8ø shaft.

BSME, PE Structural

 

[E.Marquez]

You actually want something "less machinable"
Leaded steel is what makes it machinable,, great if your miling pockets, less good if your using it a a lever
Though 1144 (Stressproof-equivalent) steel is an exception as it is very machinable, but does not have the lead.

Id order a hunk of 4130 or 4340 cold rolled Normalized bar and be done with it.

And thats the most it should cost, if you have a local steel yard it will be less and no shipping


1018 will work and is common as well.

Still shopping around and researching

Strength Easy-to-Machine Carbon Steel (1144)
This medium-carbon steel offers high yield strength and hardness, even without further heat treating.
Its composition also results in fast, reliable machining and increased tool life.

Yield Strength 100,000 psi
Hardness Hard (Rockwell C230
Meets A29, A108 , A311
Rods are stressed releved to minimize warping during machining.

============================

Ultra-Machinable Carbon Steel (12L14)
When superior machinability is needed, 12L14 is the steel of choice. Lead added to the material acts as a lubricant for very fast machining and excellent surface finish. It's used to fabricate a wide variety of machine parts.

Yield Strength: 60,000 psi
Hardness: Medium (Rockwell B84)
Meet ASTM A29 and A108

==================================

General Purpose Low-Carbon Steel (1018)
One of the most widely used types of steel, 1018 low-carbon steel is weldable, machinable, and can be surface hardened by heat treating. It is suitable for a variety of applications, such as structural and power transmission components.

Yield Strength: 54,000 psi
Hardness: Medium (Rockwell B70)
Can be surface hardened to C60
Meet ASTM A108

 

[longez]

I'd order a hunk of 4130 or 4340 cold rolled Normalized bar and be done with it. 1018 will work and is common as well.

^^^^ Mr Marquez is offering good advice ^^^^

 

[matt_i]

There's always the issue of how long to make the press-arm. Longer is of course easier when you get up to the max press capability, straight mechanical advantage...you could look up the press arm length originally, its most likely in a listing. You could reverse engineer the length via a math calculation (moment balance), assume a 200lb load at the end of the arm. Need to get close to the pitch diameter of the pinion, I'd just measure the OD of the gear and the inner diameter of the tooth undercut and average to get close enough.

12L14 is a mistake because it rusts before your eyes.

I can pretty much guarantee the OEM didn't put a 4140 shaft on there.

I'd think you could come close to owning a complete 12' shaft of 7/8" dia in 1018 for $31 from a steelyard. That calculates to ~24# of steel, $1. per lb is a reasonable rate at present for full sticks, and involves no labor to cut the bar or inventory the drop. Iow, custom cut and the yard "eats" the drop, typically you pay for the entire 12' stick and when they sell the rest its pure profit.

 

[BlueHeart]

You actually want something "less machinable"
Leaded steel is what makes it machinable,, great if your miling pockets, less good if your using it a a lever
Though 1144 (Stressproof-equivalent) steel is an exception as it is very machinable, but does not have the lead.

Id order a hunk of 4130 or 4340 cold rolled Normalized bar and be done with it.

And thats the most it should cost, if you have a local steel yard it will be less and no shipping


1018 will work and is common as well.

I really need to talk with you about doing a BB stroker w/ACT again...good to see you posting here.

 

[D45]

4140 Pre-Heat Treat 7/8"

4140 Cold Rolled Steel Pre Rounds
WORKABLE: Alloy C4140 steel is an oil-hardening steel of relatively high hardenability. Its chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. C4140 steel responds well to heat-treatment and is comparatively easily machined in the heat-treated condition. With a combination of such highly desirable properties as good strength and wear resistance, excellent toughness, coupled with good ductility, and the ability to resist stress at elevated temperatures.

USES: Drill Collars, Bolts, Rotary Table Shafting, Axle Shafts, Chain Links, Rams, Piston Rods, Etc.

PROPERTIES: Tensile Strength 95,000 PSI, Yield Strength 60,000 PSI min.

HARDNESS: Brinell Hardness — 187

.........$24.97 for 3'

https://www.themetalstore.com/produ...0-pre-rounds/4140-pre-heat-treatwith7-8-a.htm


I also found cold rolled 1018, dirt cheap.........but I always over do things

$13.50 for 3'

https://www.themetalstore.com/produ...8-rounds/cold-rolled-steel-roundwith7-8-a.htm

 

[D45]

4140 seems a lot more popular and easier to find than 4130

 

[D45]

I settled with 1144

Much cheaper and seems pretty strong

Thanks for all the help

 

[D45]

The solid steel lever arrived yesterday, and it is NICE!! Made from 1144, it is 7/8" diameter and 32" long. Both ends are drilled and tapped 1/2-20, about 1-1/2" deep

 

[metalmagpie]

All steels will deflect about the same regardless of hardness or carbon content. However, soft steels with lower yield strength will go into permanent plastic deformation much sooner than tool steels.

Now that you have your press working, straighten your old handle just as a learning exercise.

I suggest you find a burning specialist company that does CNC oxyfuel cutting for a living. Have them cut you a platen which you design. While you're at it, design a few others with lots of slot sizes and have them make them all. Very handy to have a good selection of slots.

metalmagpie