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F-20 frame

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Scott Rukke

01-02-2008 12:26:21

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Can anyone tell me the wall thickness of the F-20 frame rails? I am replacing mine and the heaviest I have found for the 2" by 4" rectangular tubing is 1/4". I think the rails are heavier than this but mine are corroded and hard to mic.

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moseed

01-07-2008 06:43:15

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Re: F-20 frame in reply to glennster, 01-02-2008 12:26:21

F-Dean has a good point. If the serial number is important to you that left side frame rail might be something you will want to keep.

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Maark

01-03-2008 14:55:53

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

People going west all the time. Wouldn't take much room on a trailer, pickup or ect. Check the hauling schedule on the left.

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F-Dean

01-03-2008 07:09:06

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

Scott, Where are you located? A lot of us have F-20 parts tractors that have rails. That may be better that shipping you one. However, the serial number won't match unless you use two left-hand rails and stamp your number.

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Scott Rukke

01-03-2008 07:34:56

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Re: F-20 frame in reply to F-Dean, 01-03-2008 07:09:06

I am in WA State. Those rails are heavy and awkward so I assume shipping will be freight and expensive. I can buy the steel for $123.

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fixerupper

01-02-2008 18:29:19

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

The F20 rail I just measured is 11/32". Jim

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Scott Rukke

01-02-2008 18:41:59

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Re: F-20 frame in reply to fixerupper, 01-02-2008 18:29:19

That's about what I thought, close to 1/3". Beefy all right. Thanks

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matt from wi

01-02-2008 17:54:27

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

I surely appreciate your opinion but I'am a pipefitter in the pharmaceutical industry and foreign metal received in our line of work does not meet the requirements of that industry.

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Scott Rukke

01-02-2008 18:07:35

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Re: F-20 frame in reply to matt from wi, 01-02-2008 17:54:27

You get what you pay for and that's why you buy specified pipe. API or ASTM or similar. They test it's metallurgical properties, conduct charpy impact tests, yield and tensile tests. We do not allow any uncertified materials in our systems. If you buy Walmart pipe you get Walmart quality. Also spent over 15 years as a pipeliner. API 1104 certified. Currently a pipeline safety engineer/state inspector trained at the Transportation Safety Institute in OK City. I don't argue about foreign steel. I only say that if you buy uncertified steel you get what you pay for. It would be interesting to have foreign steel cause a structural failure in this country. You don't see it because they buy and use certified materials.

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matt from wi

01-02-2008 16:13:34

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

You have to remember todays steel is coming from china. I'll take the American made steel from 50 years ago. I weld on alot of foreign carbon steel and stainless steel its not the same as U.S material. just my opinion.

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Scott Rukke

01-02-2008 16:49:30

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Re: F-20 frame in reply to matt from wi, 01-02-2008 16:13:34

Disagree. Todays steel is 10 times better and stronger than the steel from the 30's. Improved manufacturing processes and composition have greatly improved the tensile and yield strength of structural steel. I was a pipeline welder for years and now I'm a government inspector of pipeline companies. I work with steel issues on a daily basis and can guarantee that steel made after the 70's has much better ductility, yield strength and tensile strength for the same thickness compared to steel from the 30's. I have no concern regarding buying steel. It comes rated for yield strength and is tested. And there is still American made steel in this country.

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Maark

01-02-2008 14:11:25

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

You buy the steel, mark the holes, get a couple of them off by an 1/8" or more,things don't fit right, your time invested drilling holes. I would think you would be farther ahead by buying originals from Howard. He's a great person to deal with.

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ejr-IA

01-02-2008 13:20:46

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

I think you don't realize how tuff and strong a F20 frame rail is, much stronger than the tubing your talking about.

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Scott Rukke

01-02-2008 16:55:29

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Re: F-20 frame in reply to ejr-IA, 01-02-2008 13:20:46

Tubing only refers to the shape. Structural square, rectangular and round steel is called tubing. It in no way signifies the wall thickness or strength of the steel. Your car frame is made of tubing or channel. The definition from Wikipedia:
Tubing is a pipe or hollow cylinder for the conveyance of fluids (liquids or gases). The terms 'pipe' and 'tubing' are almost interchangeable, although minor distinctions exist (generally, "tubing" implies tighter engineering requirements than "pipe"). Both "pipe" and "tube" imply a level of rigidity and permanence, whereas a "hose" is usually portable and flexible. Tubing and pipe may be specified by standard pipe size designations, e.g. Nominal Pipe Size � or by nominal outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions (i.e., a "1-inch" pipe will not actually measure 1" in either outside or inside diameter) � whereas many types of tubing are specified by actual I.D., O.D., and/or wall thickness. There are many industry and government standards for pipe and tubing.

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Nebraska Cowman

01-02-2008 12:59:48

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

Wow yeah, 1/4 that ought to be hell for stout. Yeah, I'd say that's about what they were. I kinda hate to go out in the snow and measure one. But I do have plenty lying around. Holes all drilled. Shipping couldn't be any worse than new steel. And these are nice western stock, not rusty.

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Scott Rukke

01-02-2008 13:07:47

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Re: F-20 frame in reply to Nebraska Cowman, 01-02-2008 12:59:48

I think the shipping would be too much. I found a local place that has the 1/4 inch and will cut the pieces at 85" which is the length and they wanted $123 for both. Seems fair enough.

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Lenny Kirby

01-02-2008 12:45:02

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Re: F-20 frame in reply to Scott Rukke, 01-02-2008 12:26:21

We replaced the ones on our F-30"s its not as thick as factory. Was told at the time we could not get that thick anymore. But you also have to realize that its not 65 yr. old metal anymore and half as heavy would probably be just as good.

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