Steel Definition and 802 Threads

Homework Statement I have a steel angle (40 x 40 x 5mm) which is welded to box section either side it is 1000mm in lenght. It will have have load of 45kg on it (point load). I need to find the maximum deflection of this beam, which i think will come under a fixed-fixed type beam...

Homework Statement A uniform piece of sheet steel is shaped as pictured. compute the x and y coordinates of the center of mass of the piece https://tdsal.homeserver.com/photos/photos%20hosted%20on%20internet/q6%20.jpg Homework Equations cm = sum of all of the masses multiplied by...

Hi there, I've got an assignment due today and as usual have left finishing it off until the last minute. I've completed most of it but I thought I'd try and get an opinion on something. Homework Statement Basically our teacher has asked us for a very simple steel frame (beam, column...

I need to calculate whether a steel pipe above the ground, 1500mm OD and 6mm wall thickness, will fail under a vacuum of 3000 Pa. How would I go about doing this?

Yes, first to say that this's really a basic matter but I've found all around a week & still facing difficulty, hope someone has patient to help me an answer then i can go further myself :wink: As in the attached picture, a few ones have done their calculations & showed the different wall...

Hi guys. Which one has more impact toughness: GFRP or Steel??

I'm a little confused and i would appreciate if someone could enlighten me on how there are some claims of certain manufacturers that the strength or load bearing capacities of aluminum I beams can surpass steel I beams? is that false advertising or can that statement ring true? Please help.

Hey there, I am going to by building a chassis and i am wanting to find out if 33.7mm dia X 4mm thickness circular hollow section or 40mm X 40mm X 2.5mm Square Hollow Section is stronger these two weight around the same per meter thanks Ian

Hi. I have started to do this question (the question it's self is attached with it's relevant diagrams) but I am coming up with a too large a maximum design load, the value I am looking for isn't on the tables I have so I must have made a calculation error somewhere. Any help would be much...

Homework Statement Select a suitable steel rope to suspend a lift from a winch. The weight of the lift is variable as is the weight and diameter of the ropes the lift is suspended from. As an example, I'll use 13mm for the ropes diameter and 0.63kg/m for the rope mass, the total length of the...

Hello, I'm seeking help with material selection for a high impact speed application. We are currently using HRC 54 S7 as both impactor and target. The impact velocity is near 50m/s and we find occasional brittle failure a serious issue. I'm wondering if anyone has suggestions as to an...

[SIZE="4"]I'm building a giant set of monkey bars for a gym and I'm curious about the strength of material I plan to use.I'm going to use two 4x4 3/16 thick steel tubing that will run 20 feet long and sit on top of the same material at each end 9 feet high.I will brace the top corners at each...

I have a practical question. I work in the radiography department of an industrial contractor and we've found some old recovery buckets used to recover the silver from old film fixer. Essentially you have a bucket of steel wool that the fixer (with silver precipitate) passes through, which...

Homework Statement The average coefficient of volume expansion for carbon tetrachloride is 5.81*10-4 (°C)-1. If a 49.0 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the temperature rises to 27.0°C...

Homework Statement An object of mass .5 kg is hung from the end of a steel wire 2m in length and .5mm in diameter. The mass is lifted a distance h and then dropped (creating a 'jerk') What is the largest value of h if you don't want the wire to break? Ultimate Strength: 1.1E9 N/m^2 Young's...

The process of carburization works via the implantation of carbon atoms into the surface layers of a metal. As metals are made up of atoms bound tightly into a metallic crystalline lattice, the implanted carbon atoms force their way into the crystal structure. The carburization is produce...

Homework Statement "A round plug made of brass has a diameter of 87.53 mm at 20 C. The plug is to be fitted to a steel ring of inside diameter 87.43 mm. To what common temperature must they be brought in order to fit?" The linear coefficient of expansion for brass: \alpha_{b} = 18.7 \cdot...

Hi there How can steel structures be protected from 650 to 800 degree celsius temperatures? Can ceramic material be used to coat the steel sections? Will the ceramic material not keep the heat in and weaken the steel? Any help will be much appreciated

Properties of Matter (Fluids) Why is it possible to float a wax-coated stainless steel needle on the surface of water?

Hello, I am looking for static and dynamic coefficients of friction for bronze on stainless steel (dry condition). Closest thing I could find was http://www.engineershandbook.com/Tables/frictioncoefficients.htm" where it only has steel on bronze under greasy condition. Can anyone help me...

Does anybody knows a standard way of determining the hight of 11 KV transmission line galvanised steel poles ?

Homework Statement Given the steel C1040. What do you mean by C, 10, and 40 in that steel? What is the common type of steel used in manufacturing LPG cylinder?

Exterior commercial frames (.053") embedded in a concrete wall 8" thick with 3" layers of polystryrene (3# density) on each side of concrete cavity. Frame rests on foam inside and outside of building. Frame is grouted solid with poured in place concrete. Is there an appreciable (to be...

ok guys, suppose i wanted to build a round 8m diameter 1m high pool out of galvanized steel sheet. I will be filling it 0.7m with water. I am aiming to reduce its cost so I am calculating the thinnest sheet i am allowed to use without it failing. I will be using 7 sheets bolted together(each...

Homework Statement Hello everyone I am studying for my finals and this question has me stumped. The ends of a cylindrical steel rod are maintained at two different temperatures. The rod conducts heat from one end to the other at a rate of 10 cal/s. At what rate would a steel rod twice as...

I need a hand choosing the right size, thickness and shape of steel for a bracket to mount an old style 5 gallon Jerry water can on a Jeep. I estimate the weight of the can + water + misc = 50 to 55 pounds. The bracket will be subjected to rough off-road conditions. In the drawing the red...

Hello- I recently etched an Altoids tin. I would like to leave the etched tin in an outdoor location as a memorial to something. The etching includes text, and I am worried about oxidation of the steel ruining the tin quickly. I would ideally like for this to last several years (as long as...

hey ppl, In a nutshell, need to come up with a 10mX2m foot bridge over a river made from steel and concrete also to include foundation design. borehole data are as follows. Depth. Description 0.2M Topsoil 2.60M...

Shanghai Tian Yang Steel Tube Co.,Ltd. is a modern enterprise for tube making which is specialized to make the seamless steel tube of DIN series featured with high accuracy and brightness. Our company has the staff with highly educated and richly experienced engineers and the employees of...

Just out of curiousity, regardless that we can't reach it, can a star like that be mined? would it still retain its strength?

Hello guys, I just want to know how to heat & temper Steel/Iron at home. I can find the material easy I guess. I don't know how to start, how to reach 1,000 Fº at home to give a piece of Steel some "form", I want to give cuttings, curves, and shaping to that piece. But I know nothing about...

Hello guys, I really wonder how can I forge Steel at home. I want to give some cutting and curves to some pieces of steel I bought just to work with. But I don't know how to heat them, how to reach 1,000 Fº at home. I really want to give this pieces some curves and make some cuttings with...

I have a question regarding what material type and thickness could support a given load most cost effectively. Weight of the part will also be a factor in the cost due to the wacked out freight charges these days. I have no idea where to locate the information that I need or a formula so...

Homework Statement A cylindrical steel bar, 20-mm in diameter and 5.0-m in length, is subjected to an axial tensile load of 40-kN applied at the ends of the steel bar. Determine the axial extension, in millimeters, of the steel bar under this loading condition?Homework Equations E=\sigma/e...

Hi, I have to design a steel structured truss footbridge. Im using beam anology to determine the correct member sizes. Having trouble determining the maximum design moment (M*) Here's what I have calculated thus far: Q=6kN/m G=1kN/m 50m long, 3m depth, 3.125m spacing Self Weight...

Hi, I have to design a steel structured truss footbridge. Im using beam anology to determine the correct member sizes. Having trouble determining the maximum design moment (M*) Here's what I have calculated thus far: Q=6kN/m G=1kN/m 50m long, 3m depth, 3.125m spacing Self Weight...

Hello everyone, I think this is very simple. I have very little knowledge about electricity and would like to understand a bit more about a simple experiment I was recently shown: Basically a steel nail was connected to an electrical circuit at both ends. The two electrical contacts to...

Hello, I'm looking to experiment with an Electrothermal-Chemical (ETC) system of accelerating a projectile. Basically, it will involve using energetic materials and large amounts of electrical power to create very high pressures inside of a tube in a very short amount of time, behind the...

I'm looking at a vent that will be used to prevent a tank from collapsing due to vacuum pressures in a pipe burst/free drain scenario. The situation would be a container is filled with water when an inlet or an outlet pipe bursts. The water flowing out would create some pressure in the tank...

Hi all new to the forum here. I'm a cnc machinist here in Austin Texas looking for some mechanical advice regarding the use of stainless steel in high strength automotive applications. Basically, I'm planning on starting up my own little business replicating obsolete and out of production...

Hi people need help on finding the proof stress of tool steel after heat treatment can't seem to get it thanks

Dear Experts, :smile: Sorry if this post is created in the wrong forum. I am not sure how to tell if a metal is chrome plated or stainless steel. Is there a simple way to tell? Thank you for reading. sincerely Ramone

This topic has been discussed before at this site, but there was never any agreement. I have a very specific situation that I hope I can get a concrete answer, including equations and a step-by-step solution in inch/pounds/seconds units. A steel flat panel 6" X 18" weighing 3.25 pounds...

in the following question, i am dealing with steel which is assumed to be have elasto-plactic behaviour,- its stress strain graph will be linear to the yield stress with a slope of "E" and then linear with a slope of zero. i calculated and drew the P(delta) graphs for the 2 steel types...

I already did the first part, and the equation for the period becomes: T=2\pi(ml/\gammaPA)(1/2) I know 12 litres = 0.012 m3, and the the mass of the ball is the volume of a sphere of radius 0.01m x the density = 0.0318 Kg, for pressure I am not sure whether I am suppose to use 1 atm or 101.3...

Does anyone know where to find this steel? We've tried a bunch of suppliers and no one seems to carry it. Anyone know why? Steel, 4320 or 8620 Hot Rolled Grain Size 5-8 ASTM A29. Any help or direction would be great. Thanks, Scott

Hello, I am looking to use some stainless steel probes in a septic tank to indicate different water levels. i.e. bottom probe would be 0v then propes further up would be set at 12v and taken to 0V when the water level reaches them. Current draw will be very minimal 2 or 3 mA. The big question...

Hi, I'm constructing a waste water tank of 304 stainless steel plate and I'm not sure what thickness the material should be, the tank is approximately 2750mm x 1500mm x 1750mm What would the ideal thickness be for the 304 stainless plate and would there be any specific areas I should focus...

Hi forumer, I have 2 specimens that need to be done hardening and tempering. I have found some journals for it. But i don't understand the following statement. "10mins/cm of ruling section" ; and "1 hour per 25mm of section" If my specimens dimension are: A) 12.5mm X 12.5mm X...

What is the difference between steel plate and steel sheet.I need to buy a piece that is 7ga and 6"long/6" wide to mount 2 -4"bearings on that will be on top of a oven at 525degF.What grade steel to use and plate or sheet?