Engineering Tools, Calculators, and Charts

Scheduling Days / Weeks Out

Project Management

Easily determine lead times based on order or submittal dates.

Scheduling Calculator

Margin & Markup

Project Management

Margin and markup are frequently confused. Don’t make that error with this easy to use tool.

Margin and Markup Calculator

Unit Conversion

General Use

Convert almost any unit of measurement you can think of.

Unit conversion

Engineering Education

Thermodynamic Cycles- Principles, Purpose, and Types

Thermodynamic cycles are processes that involve heat and work flowing into and out of a system. These systems usually intake a working fluid and output mechanical work or energy. These…

Hydraulic Diameter

Hydraulic diameter, DH, is the characteristic length used to determine Reynolds number when dealing with flow in non-circular mediums. Reynolds number may then be of use in determining whether a…

Modulus of Rigidity – Equation, Steel Selection, and Values

The modulus of rigidity is the ratio of shear stress to shear strain. Thus, it measures the ability of the material to withstand distortion. However, the rigidity of the material…

DBTT – Ductile Brittle Transition Temperature

The ductile-brittle transition temperature, often referred to as DBTT, is the temperature at which there is a pronounced decrease in a material’s ability to absorb force without fracturing. At this…

Stagnation Pressure – Uses and Real Life Applications

Stagnation pressure is the fluid pressure that is measured while an initially flowing fluid is fully at rest. The fluid still holds mechanical energy through pressure despite having no movement….

Shot Peening – Process, Machines, Applications, and Advantages

Shot peening is a mechanical treatment process in which the surface of a metal object is subject to a stream of very high velocity small spherical balls of metal, glass,…

Prandtl Number – Calculation and Effective Use

The Prandtl Number is an unitless ratio that describes the momentum diffusivity to thermal diffusivity of a liquid. Using a Prandtl number provides the relation of the thickness of the…

Reflectivity

Reflectivity is the property by which an object is able to reflect light or radiation. Optically speaking, it refers to the amount of light that is reflected from incident light…

Material Hardness

There are different ways to define hardness depending on the material. For minerals, it is the property of resistance of a material to scratching by another material. Metallurgy defines hardness…

Graphene

The thinnest material known to man, graphene provides extreme strength, thermal conductivity, and electrical conductivity on par with copper. As such, this material has made an uproar with the scientific…

Metal Passivation

Metal passivation chemically treats metal to reduce its surface chemical reactivity. Reducing surface chemical reactivity helps inhibit corrosion in metal objects. In this article, you’ll learn about the benefits of…

Metal Pickling: Process and Advantages

In fabrication, metal pickling refers to a metal treatment process that reduces impurities on the surface of a metallic object. The pickling process removes the surface impurities, such as stains,…

Engineering and Manufacturing BOMs

The bills of material, or BOMs, for products or assemblies, allow engineering to design and guide the manufacturing of individual material, parts, or assemblies. A bill of material specifies the…

Molar Absorptivity

Molar absorptivity is the measure of how well an object absorbs radiation that the object is in contact with. Molar absorptivity is integral to Beer-Lambert law which relates absorbance, absorptivity,…

Fracture Toughness

Fracture toughness is a physical property of matter. It describes the resistance of the material to fracture while it has cracks.  It is different than simple toughness which is defined…

Crystal Structures – Composition & Properties

In the realm of material science, the composition of a material and a molecular level affects how a material will react to different forces, temperatures, and changes. Among the different…

HAZOP – Process and Methods

A hazop study is a powerful, systematic, and structured methodology that helps in identifying potential hazards and/or problems with plant operability. Hazop stands for hazard and operability study. The hazop…

Emissivity and Its Impact on Radiant Heat

The material property known as emissivity describes a material’s propensity to radiate energy. Emissivity measurements, sometimes referred to as an e-value, range from 0 to 1. A measurement of 0…

Materials Selection – The Engineering Process

The materials selection process for a component or assembly involves a careful evaluation of the benefits and trade-offs of material properties. In this article, you will learn the properties involved…

Project Engineer – Duties and Salary

A project engineer leads the technical development of an engineering project. Depending on the size and responsibility afforded to the project engineer, he/she may also be charged with project management…

Pipe Stress Analysis

Pipe stress analysis provides an empirical tool to evaluate how a piping system behaves based on its material, pressure, temperature, fluid, and structure. Pipe stress analysis gives a good estimate…

Electrical Designer – Duties and Salary

An electrical designer works with mechanical designers, engineers, clients, and fabricators to produce design documentation for electrical equipment. Not all industries require a dedicated electrical designer. Equipment that with only…

Mechanical Designer – Duties and Salary

A mechanical designer works with engineers, clients, and fabricators to produce design documents. In this article, you will learn job roles, design packages used, credentials, and potential employers of mechanical…

Pump Cavitation

In many piping systems, pumps are crucial to the proper operation of the system. In some cases, the intended flow characteristics are not met which causes operational issues. Among those…

Smart P&ID

Smart or Intelligent P&IDs are schematic drawings that show the connections and relationships of piping and instrumentation within a piping system. Working in conjunction with stored information such as design…

Fatigue Failure

In the engineering world, most cases of material failure occur as a result of fatigue. Fatigue failure is the fracture that occurs in a material as a result of prolonged…

PFD – Process Flow Diagrams

PFDs, known as process flow diagrams, detail the processes or relationships between the major components in a system from piping to instrumentation. They offer high level guidance on the sequence…

Pipe Spool Drawings

Pipe spool drawings, sometimes referred to as piping isometrics, provide a 3 dimension view of a piping run to allow shop personnel to fit and weld the piping run together….

General Arrangement (G/A) Drawings

General Arrangement (G/A) drawings present the overall composition of a plant, skid, building, or piece of equipment. In this article you will learn the process for generating a G/A, how…

Piping & Instrumentation Diagrams (P&IDs)

The P&ID, also known as the Piping and Instrumentation Diagram, is an end to end schematic that displays major process details of a system. P&IDs show operating conditions, major equipment,…

This is the Best Minor to Supplement Your Engineering Degree

A student recently emailed me this question and my gut reaction was “Do what brings YOU value.” Too often, students focus on what they learned for years: make your application/resume…

5 Ways Equipment Providers Win at the Freight Game

Freight is an often overlooked element of executing large construction projects. Freight is rarely a significant a profit center, but when handled improperly, it can destroy profit margin, infuriate your…