Steel Definition and 802 Threads

Hello. In my science class we had fun with steel wool and vinegar. So just for kicks I left the remains in a closed jar and shook it up every few days or so. Its been around 6 months and today I opened it just to see what was in there since the entire jar was pitch black. Inside was a dark...

This is probably simple for an engineer, but I’m a zoologist and analytical chemist and so I would rather ask those who know. I have camera traps out on the African bush, that are monitoring the responses of leopards to artificial scents. The cameras are in steel boxes to protect them from...

Are there any reasons why engines tend to use iron, aluminum, titanium (connecting rods), and even magnesium (engine blocks) components while steel is far less common?

Hi, I want to find an equation for the force generated by a solenoid on a moving steel ball bearing given current, number of loops, area of the solenoid for a lab project. I've tried looking through many sources, but was unable to find anything. I also tried looking at this previous discussion...

I'm in the process of calculating an axle diameter by using the bending moments which are created with the applied force on the end. In order to design my axle to be efficient, I believe I need to use the following equation. Sx = M/Fy Sx being Plastic Modulus Fy being Tensile strength of my...

Hello, I was hoping anyone with some experience in the area could help me out ...as I know close to nothing at all about the matter. I'm having supports manufactured for a piece of furniture. I expect maximum load to be 300-350lb. This would be distributed among 3 of these supports. Each is...

Dear Experts, I am looking for the variation of magnetic permeability of the plain carbon steel wire grade 1000 to 1095 with respect to the ambient temperature ranging from -40 deg C to 200 deg C. Any leads will be appreciated. Thank you!

Hi guys, I'm still new to this steel structure, would like to ask if we know the section e.g UB 305x102x25, how do we determine the steel grade (S275, S355, etc)? Thanks.

For my physics class we have to show an example of bad physics in a movie. I am doing Mad Max 2: The road Warrior and the scene where the gyro captain crashes his ultralight helicopter but the helicopter is completely undamaged as he drives it later in the movie. I need to know what the force to...

Suppose I have a tank which is made of steel coated with a thin layer of glass on the inside to protect the steel from corrosion (the material stored inside the tank is corrossive; say for arguments sake Water with 10% Hydochloric Acid). In theory, till the glass is intact there is an...

I have a plastic slinger (hdpe, I believe) that is attached to a dishwasher motor shaft that I'm trying to disassemble so that I can replace it's bearings. The sling will twist independently of the shaft, but it won't come off. I've been thinking of hitting it with a penetrating catalyst (PB...

I dissolved zinc in HCl until it stopped fizzing - all the Zn is gone so there may be some HCl left. I have a purple/violet liquid that I assume is zinc chloride. When I brush newly cut mild steel or iron with the solution, I get copper/brass coloured plating that does not rub off. I have no...

Saw a movie for free on YouTube, "Away All Boats" At minute 4:44 an old timer listens to the ship and hears "her" talking. An ex ship captain explains to the old timer that the sound he hears are built up stresses from welding in the newly constructed ship being released. Has anyone ever...

First off, I am new to this forum.. However I wanted To find out if anyone would be able to help me calculate How much a steel bar (2 in. In diameter, 5 ft. Lengthwise) Would be able to hold up without bending?

I am tying to find out how much weight I can support with a piece of plate steel (A514) that is supported only on the three edges. The open span would be 30" wide 36" long and .500" thick. I need to know what the maximum amount of weight I can support with .250" or less deflection. Can anyone...

Hello! I'm looking for some help regarding magnetism and how it might work (or be fictionalized) in regards to a "magic" compass. I have two questions. Please excuse my complete scientific ignorance :) In my story, our young hero has a compass. The compass needle just spins in endless...

Homework Statement here's the question , Part of solution was given , but not the final ans . I have tried to do , but i need someone to verify my ans . Homework EquationsThe Attempt at a Solution Since , stress of steel is 12.5 times of stress of concrete . The max allowable stress in steel...

Hi, I need to figure out how much weight a 5 foot steel pipe will support before becoming unsafe. I am building a series of out door pull up bars for my neighborhood as an eagle project. I need to buy the right pipe/tube that will be sturdy enough but not have too big of a diameter that you...

Size O.D. Wall 3" x 2" x 0.1875 3" x 2" x 0.125 5ft long center 500lb how much bend will there be thank you for your time

Consider a steel rod of diameter 'd'. If the same rod is broken up into strands and arranged parallel to one another so as to form a new rod of the same diameter 'd' ,Which will have a higher load bearing capacity?. Instead of being arranged parallel , If they are made into a rope of similar...

I'm a bit rusty on partial uniform loading on a pin. I want to find the minimum diameter a cold rolled steel pin has to be using a factor of safety of 2 with a loading of 25000 lbs. The pin in the picture is welded between two plates (the right plate bends in and is welded to the left plate...

A steel cable 3.00 cm 2 in cross-sectional area has a mass of 2.40 kg per meter of length. If 500 m of the cable is hung over a vertical cliff, how much does the cable stretch under its own weight? Take Y steel ϭ 2.00 ϫ 10 11 N/m 2 .Y=([L][/o]F)/(A*delta_L) My attempt of solution...

Hello, I was recently onsite in the Philippines and the equipment owner stated their wind turbine had been hit by lightning. The only obvious damage was to the bolted connections at the root of one blade. One was sheared, the other bent. Does anyone have any experience of lighting causing...

https://drive.google.com/file/d/0Byoif068nH-zbk8tVmhCQVlYMlk/view?usp=drivesdk 1. Homework Statement The steel railway will be constructed in a place that temperature can change 8°C. Length of each rail is 10 m. With α=11*10^-6 . Minimum space required between the rail is... Homework...

The company I work for makes and repairs circular saw blades. When we receive blades in from companies, they must be checked into our system manually using an ID number, and we are looking for a way to check them in by scanning, like a data matrix. We have sent out several blades to companies...

Why does a steel ball appear hotter than a charcoal piece at the same temperature when picked up by bare hands?

in this problem , i could only understand that P3 = 120KN , i can't understand why P2= -60kN and why P1 = 240kN ? can someone explain ? Homework EquationsThe Attempt at a Solution

Just need someone to double check my work. So the bracket is going to be cut out from a steel plate in a weird, rounded out triangular shape, and then a hole will be drilled through it. For simplicity though, let's just say the bracket is a ring with one half of it welded onto a wall. OD of the...

Hi folks, I recently moved to a new house with a small backyard/patio. It's roughly 25ft x 25ft, mostly concrete bordered by an L-shaped Earth area. I'd like to place three hammock posts as shown in the first image. We like to dream big and want these posts tall enough to support two hammocks...

Hi I need help with this question, because I find it a bit confusing, thanks! Suppose we have a steel sheet with a circular opening, and a sphere with a diameter equal to that of the circular opening diameter. If we heat the steel sheet with a match or any heater, then which of the following...

May I know whether non-magnetic or magnetic stainless steel cookware leach more? I have looked at the different reasons why some stainless steel is magnetic or not, but it is confusing me whether one leaches more than the other.

So, basically... Since I have my own place/office, tools, machines and everything I need. I've been working on a steel suit just for fun, as a hobby. Based on the Iron Man superhero, and I want it as my Halloween costume this year. My idea is to build it gorgeous, and I'm on that at the moment...

I need to know what is the strongest most reliable tap for threading 6-32 into stainless steel. I used like 3 cheap steel taps and they all broke. Any advice is greatly appreciated. Thank you

I wanted to know what formula's do I need to figure how much force is required to make a dent in a car. I am then placing a bumper guard made up of carbon fiber, and wanted to know what equation do I need to use to figure out how much force is required to make a dent with the carbon fiber bumper...

Hey guys. So I'm kinda new to all this and just wondering if anyone might have a idea or solution. So the question is. I have patio spaning 9mtrs long with 2 centre pylons as supports between the 9Mtrs I'm wanting to remove these pylons. The pylons are only supporting 500mm from the edge of...

Homework Statement Given that the overall weight percentage of ferrite along the grain boundaries of an as-cast steel with unknown C amount is 35.23%: a) Identify if it is hypoeutectoid or hypereutectoid. b) Identify the amount of carbon alloyed in the steel. c) Identify how much ferrite and...

1. Homework Statement Ok so, for part b ii) The solution did this : 1/2 (0.065) (2π /0.3)2 (1.5 x 10-2)2, which is the KE of the mass when its speed is max. But why do they calculate the energy when it is at its equilibrium position where its speed is max? I assume that the energy before...

I am working on a heat treatment plan, and I am curious if there is a go-to source for ttt diagrams for particular materials. I am working with SA-516 70, but it would be nice if there was one place where I could go to get current/reliable information. So far google searches have been unsuccessful.

Hi, My father has been dedicating a lot of his time to making our soon-to-be home as "rewarding" (I guess) and as nice as possible for when its done. The new side project would be this. It is supposed to be some rain-proof place for a bench/table outside. There are going to be three (more or...

Homework Statement A coil of 450 turns is wound uniformly round a cast steel ring. The ring has a crosssectional area of 750mm2 and a mean circumference of 600mm. A flux of 0.825mWb is produced in the ring. (Given that H = 800At/m at that flux). a. Calculate the reluctance of the ring b...

I'have searched a lot but could not find latent heat for any kind of medium carbon steel for latent heat from solid to liquid and from liquid to gas. Also I want to know the corresponding melting point and boiling point for that know of steel. Any link for a table would be greatly appreciated...

What are the reasons behind the different microstructures of steel at different temperatures? I don't understand why steel at high temperatures (austenite phase) would favor an FCC crystal structure while steel at lower temperature (ferrite) would favor a BCC crystal structure.

Homework Statement You received many steel balls of the same diameter d and container of known volume V. All dimensions of the container are much greater than balls diameter. How many balls can be placed in a container? Homework Equations (\frac{4}{3}\pi)(\frac{d^3}{8})\approx0,52d^3 The...

Hello, Am looking for special steel material ERCO, Which is use in spring manufacturing. Any one have idea about this. If anyone have then kindly let me know. I do not have datasheet or any physical or chemical properties.

I'm building a clothing rack that swings out of the way. It's ideally made of 7/8" (or possibly 1") stainless steel tube, with 1/16" thickness and will sit on a 3" bearing (lazy susan) that supports 200lb. The top is firmly attached to a stud in the sloped ceiling. It needs to hold up something...

Hi guys, I'm using an electromagnet to detect the presence of a steel door through analog pins on an Arduino. This works great if the magnet itself isn't under power, but once I'm running 12 volts through it, the sensitivity of the readings fall apart. I'm using a resistor based voltage divider...

i am looking for a graph of yield strength vs temp for 4130 steel, a bonus if the graph will shows various tempered 4130's too.

Hi All, I'm searching for the possible method to determine organic coating thickness cover on steel tole was plated by thin zinc layer. Additionally, I also want to measure thickness zinc plating layer in between these layers (coating on top & steel on bottom) without destructing them. Please...

Hello Lets say we have a steel cube, then fill it with water and close all the gaps very strong with welding. If we leave the cube on a stove for a lot of time, is the produced steam of the boiling water, enough to destroy and smash the steel cube?

Homework Statement A platform (m = 5,0kg) is suspended from 4 steel cables whose length is 3,0m and diameter 2mm. a) How much further will the platform sink if a mass of 50kg is placed on the platform? b) What is the maximum load that the wires can hold before breaking? Homework Equations...