TFS Trading

A technical reference for steel sections, backed by over 30 years of experience

Soroush Steel Trading Company has been supplying and distributing steel products for more than three decades. On this site we have gathered the specifications, weight charts and standards of each section in one place, so that project materials can be chosen on the basis of accurate information.

30+ yearsof experience in supplying and distributing steel products

AVLListed on the Ministry of Petroleum Long-Term Approved Vendor List

7 groupsof steel sections, each with a technical guide in Persian and English

Step by step

How to choose a steel section

Define the useWill the member carry bending, compression, tension or fluid pressure?
Choose the section typeEach section shape suits a particular kind of load; see the table below.
Read the size from the chartNominal dimensions and mass of every size are listed in the guide for that section.
Check the steel grade and standardThe grade sets the minimum yield strength and must match the drawings.
Calculate the weightUse the calculator to get the mass per metre and the total mass.

Calculator

Calculate the weight of a steel section

Choose the section type and enter its dimensions. The calculation uses the density of steel (7850 kg/m³) and gives the theoretical mass; the actual mass may differ slightly within the tolerance of the standard.

–Mass per metre (kg)

–Total mass (kg)

Quick comparison

Which section for which job?

Section	Shape	Typical use	Common length	Dimension reference
IPE beam	I shape	Bending members of steel frames	12 m	EN 10365
H-beam (HEB)	H shape	Columns and compression members	12 m	EN 10365
Channel	U shape	Double columns, purlins, chassis	6 and 12 m	EN 10365
Angle bar	L shape	Connections, trusses, towers	6 and 12 m	EN 10056-1
Hollow section	Square or rectangular tube	Frames, light structures, railings	6 m	EN 10219
Pipe	Round tube	Fluid transport, columns, scaffolding	6 and 12 m	ASME B36.10M
Rebar	Solid round	Concrete reinforcement	12 m	INSO 3132
Sheet	Flat	Tanks, bodies, cladding, plate girders	Coil or cut sheet	EN 10051 and EN 10130

In every guide

What will you find?

Size and weight chartsNominal values according to the reference standards, for common sizes.

Weight formulaA simple formula with a worked example for each section.

Section diagramThe section shape with its dimension symbols such as depth, flange width and thickness.

Reference standardsThe national and international standards that apply to each product.

Glossary

Common terms in the steel trade

Web and flange: The web is the vertical plate of a section and the flange its horizontal plate; used for beams, channels and angles.
Rib: The raised pattern on a rebar surface that improves the bond between steel and concrete.
Hot and cold rolling: Shaping steel at high temperature or at room temperature; cold rolling gives a smoother surface and tighter dimensions.
Hot-rolled and press-formed: Hot-rolled sections are rolled at the mill; press-formed sections are bent from sheet.
St37: The older name of the common structural steel now designated S235JR.
Schedule: A number that defines the wall thickness of a pipe for each nominal size.
Galvanized: Coated with zinc, which protects steel against corrosion.
Nominal mass: The mass calculated from standard dimensions; actual mass may differ within the tolerance.

Fields of use

Where are steel sections used?

BuildingSteel frames with I-beams and H-beams, concrete structures with rebar, and façades and railings with profiles.

IndustrialIndustrial halls with channels and angles, equipment frames with heavy profiles, and tanks with sheet.

Civil engineeringBridges, tunnels and dams with rebar and plate girders, and piling with large-diameter pipe.

Oil, gas and petrochemicalsTransmission lines and process piping with welded and seamless pipe.

About us

Soroush Steel Trading Company

Soroush Steel Trading Company, under the brand TFS Trading, is active in Iran's steel market and supplies rebar, I-beams, profiles, angles, channels, pipes and steel sheet for construction, industrial and civil engineering projects.

On the Ministry of Petroleum AVLThe company is registered on the Long-Term Approved Vendor List of the Ministry of Petroleum.

Common questions

How is rebar weight calculated?

Square the diameter in millimetres and divide by 162 to get the mass per metre in kilograms.

What is the difference between an I-beam and an H-beam?

In an IPE beam the depth is about twice the flange width; in an H-beam the flange width is close to the depth, which suits columns better.

Is a pipe's nominal size its outside diameter?

No. The nominal size is a designation; a 2 inch pipe, for example, has an outside diameter of 60.3 mm.

How do hot-rolled and cold-rolled sheet differ?

Hot-rolled sheet is rolled hot and cold-rolled sheet is rolled at room temperature; cold-rolled sheet is thinner, smoother and more accurate.

We are here to help

Head office: No. 27, Farshad Alley, Kharazmi St., Mollasadra, Tehran

+98 21 66316105 Contact details View on the map