Questions tagged [steel]
For questions related to the alloy steel: Its production, material properties and applications. The carbon content of steel is between 0.002% and 2.1% by weight for plain iron-carbon alloys.
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Chamfering with a conical bit makes a table drill vibrate
I have a slow-speed drill press which seems quite solid, the play is minimal. Normally, it does not cause problems. This conical bit:
when applied to this 8 mm hole:
is an exception: the bit jumps ...
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steel beam type and size for a clothesline
I have four posts in a square formation. Posts are also square. I want to bolt a beam between two posts on the left and a beam between two posts on the right, and than run some wire between the beams. ...
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Simple steel column buckling calc - where am I going wrong? (Eurocode)
I'm trying to follow an example of this, but I get a wildly different answer than expected and I can't see where I'm going wrong.
The example I've got, is for a 2.8 m steel column (RHS 150 x 100 x ...
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Is there a way to avoid reheating of steel billets in Reheat furnace and directly go from casting to roll milling?
Iron ore and few compounds added will result in steel which are casted to steel billers form. this billet is again reheated to melting point of 1200c and then sent to roughing mill for desired shape. ...
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Influence of a diagonal fold on a web + double fold situation
I need to build a steel frame with a steel web in it, as illustrated below.
Flanges of the frame will be welded, as well as the web, along its whole perimeter.
Would adding a diagonal fold to the web ...
user12750
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A Steel post and base question
I make solid curved wood furniture and frequently need something like a metal plate (1/8") with a (3/4" about) supporting pipe attached at 90 degrees. Welding is a little too cumbersome but I was ...
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What steel to use? What thickness and width? What angles to use? [closed]
I am trying to develop my own spring steel version of a carbon fiber running blade that you might see in the paralympics. Except mine is for someone who still has their foot/leg. Nothing like that ...
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Do nylon and rubber bushes usually come in sizes between steel pipe sizes?
I'm in Cambodia where I don't speak the lingo and I'm hoping to do a little DIY project.
If I were to buy two different off the shelf steel tubes am I right in thinking that the most common nylon and ...
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Heating up Tool Steel with a welder
I'm a newbie of electricity and I would like to know if a piece of tool steel connected to both positive and ground pole of a welder tend to heat up red hot.
If yes, at wich amperage?
There are some ...
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What is the difference between pipe section, hot-finished, and cold formed circular hollow section?
I was reading a steel catalog and saw that it categorizes steel sections separately into pipe section, hot-finished circular hollow section, and cold formed circular hollow section. Given the same ...
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Elastic bands vs Spring Steel?
My friend and I are working on a project requiring for us to propel a syringe forward in a small container with significant force. We are debating whether to use an elastic band wrapped around the ...
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Steel Continuous Beam Structural Diagram
Here's an image of my structural plan that my group and I are designing for a university assignment. It is a 7-story steel structure with bracing at the two ends and at the verticle core near the ...
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How to calculate effective section modulus of a slender section?
Hi how to calculate the effective section modulus of a class 4 section using Eurocode 1993? Can someone show me an example? I tried searching online but cannot find anything useful. My main problem is ...
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What effect does the weight of a wall have on the steel in the reinforced concrete below?
Considering the two options
build internal wall on top of 10 cm deep concrete slab reinforced with 7.7 mm smooth steel wire mesh
build internal wall on top of 30 cm deep concrete floor ...
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Dimensional stability of tool steel when hardening
I am trying to figure out how to make dimensionally accurate cutters to use in a shaper. They should be suitable to cut part of a circle into 17-4 and 4150, the circular part cannot be turned on a ...
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Why marine steel is not always used in cooking applications
What are the main reasons why marine steel such as 1.4404 (316L) grade is not solely used in cooking and kitchen applications? Other than cost possibly? Why other grades such as 1.4301 (304) are so ...
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What (standardized) naming is enough to completely specify a type of steel?
What (standardized) naming is enough to completely specify a type of steel? That is, the composition and properties.
Take for example 1.0037 S235JR. Are these two numbers linked/equivalent, do you ...
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Bolted connection moment resistance
I'm reading the Steel Construction Institute book Moment-resisting joints to Eurocode 3.
In chapter 2, bolted beam to column connections using end plates are covered. For a connection with multiple ...
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Design of pinned joint to Eurocode
Above picture is from Eurocode 3: design of steel connections. It gives geometrical requirements for a pin ended member. Looking at situation A, we have the minimum distance $c$ from the edge of the ...
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Practical estimation of magnetic force
I'm trying to estimate the magnetic force which develops on a truss-like ferromagnetic structure (I want to estimate the motion of the object) in a uniform magnetic field, and I came to realize that I ...
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When were the japanese yellow/white/blue/silver paper steels introduced?
The steel series called kigami/shirogami (yellow/white paper steel, high purity carbon steels in different grades), aogami (blue paper steel, a tungsten alloyed tool steel series), aogami super (a ...
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Are there is vanadium-free high speed steels?
Vanadium is present in all high speed steel grades. Unfortunately vanadium is not only very expensive but is also a well known cytotoxic metal. Some workers get a severe persistent cough lasting for ...
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STEEL CONNECTIONS
Hi, so, would you consider the connection detailed here as fixed or pinned during your structural analysis?
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Does speed matter while one steel part is pressed into another?
If one press some steel part into steel hole to get unsplittable assembly, does this operation speed matter? Is it better to hit by hammer, or to slowly jam with vice? Does it relate to steel type (e....
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Why increasing the coefficient of friction results in evenly distributed load in rolling machines?
I'm designing a rolling machine for reduction of steel ingots of $5 mm$ to $1.96 mm$ thick. I can convince myself using equations why increasing the coefficient of friction (in case of lubrication ...
user14407
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Why shouldn't dark area analysis be used to estimate carbon content on high carbon hypoeutectoid steels?
I had this thought with me for quite some time, that you can't use the usual formula for estimating carbon content on a Nital etched hypoeutectoid sample (DarkArea*0.77) if the steel obviously has ...
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Cement-Filled 6" PVC Bollard [closed]
My next door neighbor's car backed into my wooden fence and knocked down a section. I want to protect the fence from a future accident. A steel pipe filled with concrete would cost more than PVC. A ...
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How to calculate monosymmetry index of an unequal angle? [closed]
I saw some formula involving integration. Is there a straightforward formula to calculate this instead given b, d, t and alpha angle between x-x and u-u axis?
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Designing a pin connection
I am designing a pipe strut connected to a UB waler using a 100mm diameter pin through a series of 8 interlocking plates. Each plate is about 40mm thick. To be able to weld the plates to the waler and ...
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How is the area moment of inertia calculated for angle iron?
The formula for the area moment of inertia for a rectangular cross-section is b * h^3 / 12. But it looks like when computing the value for angle-iron in this table:
http://www.engineersedge.com/...
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How to attach a shell covering to a flat piece with clay as adhesive? [closed]
I have a ceramic nozzle type structure sort of like this:
The outer casing is joined with clay material with the inner ceramic nozzle. What we do is, we attach the clay in the casing, put the nozzle ...
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What shear strengthening schemes are available for an I beam?
I would like to double the shear capacity of an I beam by welding some steel plates. What strengthening schemes are available? How would you define the shear area for the strengthening scheme proposed?...
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Spring degradation in hand grip trainer
Consider a spring like this (this one CoC hand gripper):
They claim on their web site, that the spring will not degrade during time:
Do your grippers get weaker with time?
No, so don’t worry if ...
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What thickness of aluminium sheet do I need to achieve the same strength of a 1/8" steel sheet?
I want to use a boat with an aluminium hull. The authorities wants me to prove by calculation that the hull strength (longitudinal, lateral and local strength) equals at least the strength that would ...
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Can stainless steel be used in continuous high temperature environment (500°C to 850°C)
Can i use stainless steel as a furnace roof. Furnace temperature will be max upto 850°C. If so which ss grade will be the best in this situation. Thanks
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I can't decipher the string printed on my steel pipe (to find the yield stress)
TLDR;
Can you please help me understanding the string in the picture and help me finding the yield stress that my metal can handle?
Full story
I am trying to estimate how much load some zinc-coated ...
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Are British Universal Beams and Columns cut according to imperial or SI measurements?
In product catalogues, beams like UB 152x89x16 have dimensions written in mm to the nearest one decimal place. Are these beams cut and measured using an SI ruler or an imperial ruler. I am asking this ...
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How can a steel cylinder be parted in concentric rings with small gaps between them?
For a project, I have to part steel round stock, like the cylinder in Fig. 1, but not perpendicular to the symmetry axis (like a bread in slices) but in concentric rings 3 inch long and having the ...
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Designing a tea strainer: What should I do first?
I hate to ask a somewhat broad question, but here I am with no one else to turn to 😅. Specifically, my question is: What should I do first?
Let me explain the context to make my question a little ...
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How to remove oxide layer around stainless steel welds with household items
I have a stainless steel pot whose welds show the formation of an oxide layer. Colors around those welds range from gold to dark blue (see images below). The main question is: How do I remove those ...
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Can High Wind Speed break Laminated Glass and bend Steel Pipes?
Planning on using Steel Pipes as frames for holding laminated glass in a high wind area. Four sides will be covered by glass and the roofing will be also be covered with glass. Planning on using a ...
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Consequential differences between World Trade Center (1973-2001) with steel columns and concrete columns? [closed]
How long would the World Trade Center (1973-2001) have stood after the large commercial passenger aircraft impact if the columns had been made of concrete?
The perimeter columns were steel according ...
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How is load bearing capacity of a leg of steel angle calculated?
Suppose a section of steel angle is used to support a structural beam, which would otherwise have no available bearing, as in the following sketch.
Assuming that appropriate connection/fixing on the ...
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How thick must a concrete or block wall be to withstand hydrostatic pressures up to three meters' height?
I'm planning a basement 3.6m depth, ~0.5m of which extended above ground surface level, in a deep clay/alluvial terrain (bedrock inaccessible). Torrential rainfall during rainy season saturates the ...
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Reasonable expected yield strength of A513 steel
I'm looking to build a fish-tank stand for a decently large fish tank (300 gal). I'm looking at building it out of A513 steel because that is easily available locally. However, I am having trouble ...
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Orthogonal to Orthoradial reinforcement
Most of finite element calculations are performed with an orthogonal mesh (Cartesian coordinate system). From this calculation, we get two values of required steel area per linear meter: $Ax, Ay$ ($cm^...
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How thick does my stainless steel table top need to be?
I need to construct a table that will hold a water tank. The filled tank will weigh up to 1300 pounds. I have the table leg frames worked out to hold 2500 pounds so no worries there. (Here is a link ...
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Resistance spot welding multiple metal thinknesses
I have a question for all experienced in manufacturing of steel products;
Is it possible, and or workable to resistance spot weld dissimilar metal thicknesses together? for example, 1.5-2mm thick ...
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Maximum deflection of a beam, fixed in one end and concetrated load at free end [closed]
A 2 m long beam fixed in one side with a 2000 kg concentrated load at free end. Profile of the beam is HEB100 material S235.
I would like to know if the beam will break under this load. If ...
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How do I fabricate a sphere? [closed]
I'm want to make a 2 meters wide sphere that should be circular enough as a giant hamster ball! I could make it of some sort of strong plastic or steel. It should have a hatch on top that can be ...
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