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.

22 questions with no upvoted or accepted answers
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Will a cyclic heat load transform my martensitic steel? How fast?

I have a plunger - that I'm using for glass forming - made out of a martensitic steel. Glass is at 1000°C and since martensite is a metastable phase, should I expect the properties of my plunger to ...
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2answers
263 views

What does the D stand for in the steel grade 16MND5

I would like to know what does the "D" means in steel grade 16MND5. According to the standard EN 10027: 16 means 0.16 % C MN 5 means 1.25 % Mn (5 must be divided by 4 to get the Mn mass fraction) ...
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1answer
231 views

Compression members with moment to BS 5950-1:2000

According to clause 4.8.3.2 the cross-section capacity for non-slender section is: $$\frac{F_c}{A_g p_y}+\frac{M_x}{M_{cx}}+\frac{M_y}{M_{cy}}\leq 1 \qquad (1)$$ According to clause 4.8.3.3.1 ...
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0answers
525 views

General formula for calculating torsional and warping constants of built-up section

In order to calculate the elastic critical moment of a laced double I-section, I need the torsional and warping constants. Is there a general formula to obtain this? BS 5950 only has formulas for ...
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0answers
150 views

Alternatives to stainless steel staples

I have to mount a glass fibre woven mat onto a stainless steel foil and using staples seems to be the only way to do it. The environment is one where a large variety of solvent vapors will be ...
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169 views

Thread-locking on AISC Clevises

I have a project that includes some standard AISC clevises on threaded rods in pure tension. I am trying to find guidance on how best to address the possibility that the rod could rotate with respect ...
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0answers
24 views

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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44 views

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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1answer
428 views

what actually cause quench cracking ? non-uniform cooling or rapid cooling?

It’s well known that quenching most alloyed steels starting from AISI 4140 to high speed steels in water, brine , or sometimes oil will cause cracking and distortions. in industry oil quenching ...
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47 views

STEEL CONNECTIONS

Hi, so, would you consider the connection detailed here as fixed or pinned during your structural analysis?
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35 views

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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56 views

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 ...
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120 views

Bonding steel plate to fiber cement sheet effectively

I've been trying to produce a cheap panel using fiber cement and zincalume sheet. There is a research paper that I read about bonding steel plate to concrete to increase their tensile strength by ...
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27 views

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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217 views

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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57 views

What is the theoretical grain size in a ideal phase diagram of a metal?

We suppose thermodynamic equilibrium in a phase diagram, where cooling rates are infinitely long and diffusion in both phases can finish completely. So when we cross the solidus line and we are left ...
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1k views

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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1answer
73 views

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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50 views

classes and grades of steel and stainless steel

I'm trying to learn the standard nomenclature for the steel and stainless steel mainly used in the bolts, screws, nuts, and other fasteners in general. So far I have created this table: | Metric ...
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45 views

Possible improved approaches to 6mx3m moment-resisting frame with eccentricity+torsion, in advance of detailed engineer discussion

I'm putting a steel frame in, to "open plan" the rear of a brick cavity-wall terrace house in the UK, which will then have a single storey extension added behind it. I have already retained a ...
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1answer
75 views

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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42 views

Plate rolling - Hot or Cold rolled plate stainless steel

What is preferred material for plate rolling (roll bending) when talking about stainless steel - hot rolled stainless steel plate or cold rolled stainless steel plate. Final product would be for ...