Sunday, July 15, 2012

Sectional Properties

Important and common sectional properties of rolled steels are Moment of Inertia, Radius of gyration & Elastic Modulus. The purpose of usage and definitions are below. Generally, the centimetre (cm) is used for the calculated properties.

Moment Of Inertia (I)
Area Moment of Inertia, also known as Second Moment of Inertia - I, is a property of shape that is used to predict deflections and stresses in beams. The larger the Moment of Inertia the less the beam will bend. The moment of inertia is a geometrical property of a beam and depends on a reference axis and has been calculated taking into account all tapers, radii and fillets of the sections.
Radius of gyration (r)
The radius of gyration is a parameter used in buckling calculation. It can be calculated by roots of Moment of Inertia divided by Area
r = (I / A)1/2
Elastic modulus (Z)

The elastic modulus is used to calculate the moment capacity based on the design strength of the section or the stress at the extreme fibre of the section from a known moment. It is derived as follows:
Z =I/e
Where e is the distance to the extreme fibre of the section from the elastic neutral axis.

Other sectional properties are used in engineering are
Buckling parameter (u), Torsional index (x), Warping constant (H), Torsion constant (J), Plastic modulus (S), Torsion modulus constant
Best Quote. "The only true wisdom is knowing that you know nothing". Have a Nice Day

Sunday, July 1, 2012


Dear Readers in continuation with my earlier post of ISNT , ISDT & Slit tee, self would like to post unit weight of normal tee as per European Standard.

Above shown table is as per EN 10083-3. Sizes available are from 30mm to 140mm and thickness varies from 3mm to 15mm

For More Details about Indian Standard Tee Click TEE Section
For More Details about Unit Weight of Nominal Tee Click ISNT
For More Details about Unit Weight of Deep Leg Tee Click ISDT
For More Details about Slit Tee Click IS:1173
Best Quote.
" When one door closes another opens. But often we look so long so regretfully upon the closed door that we fail to see the one that has opened for us." Have a Nice Day
Related Posts Plugin for WordPress, Blogger...

Contact Form


Email *

Message *


Abbreviations (18) Acre (2) ANSI (1) Anti friction bearing (2) Apothecaries Mass (1) Avoirdupois Mass (1) AWG (4) AWS (3) BCR 295 (2) Beam (19) Bearings (5) Blasting & Painting (4) Blogoversary (2) Bolt (4) CAR A/C (1) Cartoon (2) Cent (2) CHANNEL (7) Chequered Plate (1) Chinese (3) Civil (2) Classification (3) Cleaning (3) Cold Rolled Steel (2) Column Section (1) Computer (1) Concrete (1) Construction Industry (4) Conversion Table (2) Crane Rail (2) Density (1) Drill bit (1) Drill gauge (1) Drilling (1) EHS (1) Ellipcon Steel (1) Elliptical Hollow Section (1) EN 10083-3 (1) EN 10219 (1) Engineer Day (6) Engineering Miracle (2) European Steel (3) Fibre Rope (3) Fire (1) FLAT (1) floating crane (1) Flood (1) GAUGE (9) General (21) Greetings (4) H-beam (4) Handrail (1) Heavy Weight Beam (1) Helmet (1) HEXAGOAN (1) Hollow Rectangle (3) Hollow Square (5) Hollow Steel (10) Hot rolled Steel (26) HSS (9) I-Beam (2) Information (5) Informations (4) Introduce (4) IPE (3) IS 1173 (5) IS 1786 (1) IS 3443 (2) IS 4923 (2) IS 808 (15) ISA (2) ISCR (1) ISHB (3) ISJB (4) ISJC (2) ISLB (3) ISLC (2) ISMB (4) ISMC (2) ISMCP (1) ISNT (2) ISSC (2) ISWB (3) JIS G3466 (1) Joints (1) Junior Beam (2) Junior Channel (3) Labour Law (2) Land Measurement (2) Light Beam (1) Light Channel (3) LPG Cylinder (1) Mass (2) Measurement (3) Metals (4) Mile Stone (2) Music Wire (4) MWG (6) Numbers (3) OCTOGAN (1) Painting (4) Parallel Flange Channel (1) PFC (1) PIPE (1) Plastics (2) PPE (1) Precautions (2) Rain (1) Rebar (1) Reinforcement Rod (1) Reinforcemnt Steel (1) Reo (1) Rigging (8) River on River (1) Rope (6) ROUND (1) Safety (9) Scale (1) Self Explanatory (4) SEP (4) Short cut key (1) Sling (1) Slit Tee (1) Specific Gravity (3) SQUARE (1) SSPC (1) Steel (18) Steel Beam (7) Steel Section (6) Steel Section Type (5) Structural Steel (52) Surface Preparation (4) SWG (4) SWL (1) Technical (5) Tee Section (5) Thanks (6) Tools & Tackles (2) Torque (5) Troy Mass (1) TUBE (1) Turnbuckle (1) UB (2) UC (2) Unit of Mass (1) UNIT WEIGHT (45) Universal Beam (1) universal Column (2) Water (2) Weight (8) Welding (5) Wide Flange Beam (2) Wind (6) Wind Speed (4) Wire Rope (3) Wishes (12) WWD (1)


1) I have extracted the information from reference sources which may not be in accordance with the latest Standards - as identified.

2) The data’s are based on a review of various reference sources. For important work please check against quality information sources.

3) The Articles are no way connected to company of author belongs.

4) This Blog will not be liable for any, direct or indirect, consequential or incidental damages or loss arising out of the use of this information.

5) If you have any suggestions or feedback on how this blog can improve it for you, please feel free to e-mail me (engineerdiary@gmail.com) Self will try my best to keep up with it!

6) Paypal account of this site is engineerdiary@gmail.com

7) If your brand/company is keen to work with Engineer Diary for advertisement and sponsorship, you can drop us an email at engineerdiary@gmail.com

8) For More Disclaimer please refer Disclaimer Page