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ASTM A36 / A36M Carbon Structural Steel Plates, Bars, Angles, Channels & Beams for Construction & Industrial Applications

FOR REQUIREMENT OF THIS GRADE OR FOR DETAIL CONTACT US AT :-

www.ladhanimetal.com

www.ladhanimetal.in

ladhanimetal@gmail.com

info@ladhanimetals.com


Introduction

ASTM A36 / A36M covers carbon structural steel used in welded, bolted, and riveted construction applications. This material is one of the most widely used carbon steels due to its excellent weldability, machinability, strength, and cost-effectiveness.

ASTM A36 carbon structural steel is extensively used in construction, fabrication, infrastructure, and industrial engineering applications where reliable structural performance is required.

Ladhani Metal Corporation is a manufacturer, supplier, and exporter of ASTM A36 / A36M carbon structural steel products, supplying high-quality structural steel materials for diverse industrial and construction requirements.


Applicable Standard

Standard Specification: ASTM A36 / A36M
Organization: ASTM International
Title: Standard Specification for Carbon Structural Steel

This specification covers carbon steel shapes, plates, and bars intended for structural applications.


Forms of Supply

ASTM A36 carbon structural steel is supplied in the following forms:

Steel plates
Steel sheets
Round bars
Square bars
Flat bars
Hex bars
Angles
Channels
Beams
I-beams
H-beams
T-sections
Structural sections
Steel strips
Chequered plates
Forged components
Cut-to-size materials


Supply Condition

Hot rolled
Normalized condition (if required)
As-fabricated condition


Surface Finish

Mill finish
Shot blasted
Primer coated
Galvanized finish (if required)


Standard Sizes

Thickness: 3 mm to 300 mm
Width: Up to 3500 mm
Length: Up to 12000 mm or as required

(Custom sizes available as per requirement)


Grades Covered Under ASTM A36 / A36M

ASTM A36

This grade is a low-carbon structural steel offering good strength, weldability, and machinability.


Chemical Composition of ASTM A36 Carbon Structural Steel (%)

Element

Shapes – All Thicknesses

Plates Over 3/4 to 1 1/2 in. [20 to 40 mm] incl

Plates Over 1 1/2 to 2 1/2 in. [40 to 65 mm] incl

Plates Over 2 1/2 to 4 in. [65 to 100 mm] incl

Plates Over 4 in. [100 mm]

Bars Over 3/4 to 1 1/2 in. [20 to 40 mm] incl

Bars Over 1 1/2 to 4 in. [40 to 100 mm] incl

Bars Over 4 in. [100 mm]

Carbon, max %

0.26

0.25

0.26

0.27

0.29

0.26

0.27

0.29

Manganese %

0.80–1.20

0.85–1.20

0.85–1.20

0.85–1.20

0.60–0.90

0.60–0.90

0.60–0.90

Phosphorus, max %

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

Sulfur, max %

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

Silicon %

0.40 max

0.40 max

0.15–0.40

0.15–0.40

0.15–0.40

0.40 max

0.40 max

0.40 max

Copper, min % (when copper steel specified)

0.20

0.20

0.20

0.20

0.20

0.20

0.20

0.20

Notes

  1. “—” indicates no specified requirement.
  2. Heat analysis for manganese shall be determined and reported as described in ASTM A6 / A6M.
  3. Manganese content of 0.85–1.35 % and silicon content of 0.15–0.40 % are required for plates over 3/4 in. [20 mm] thickness.
  4. For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified maximum is permitted up to a maximum of 1.35 %.

ASTM A36 / A36M – Tensile Requirements

Product Type

Tensile Strength, min ksi [MPa]

Yield Point, min ksi [MPa]

Elongation in 8 in. [200 mm], min %

Elongation in 2 in. [50 mm], min %

Plates, Shapes, and Bars

58–80 [400–550]

36 [250]

20

23

Plates and Bars over 8 in. [200 mm] wide

58–80 [400–550]

36 [250]

20

23

Shapes

58–80 [400–550]

36 [250]

21

Additional Details

• Tensile requirements are specified according to ASTM A36 / A36M standard.

• Yield strength represents the minimum stress required to produce permanent deformation in the material.

• Tensile strength indicates the maximum stress the material can withstand before fracture.

• Elongation values define the ductility of the material and its ability to stretch before breaking.

Notes

  1. Refer to ASTM A6 / A6M for specimen orientation and testing procedures.
  2. For wide flange shapes over 426 lb/ft [634 kg/m], the maximum tensile strength limit does not apply and minimum elongation in 2 in. [50 mm] is reduced to 19.5 %.
  3. Yield point of 32 ksi [220 MPa] is permitted for plates over 8 in. [200 mm] in thickness.
  4. Elongation is not required for floor plates.
  5. For plates wider than 24 in. [600 mm], elongation requirements are reduced by two percentage points.

Key Features of ASTM A36 Carbon Structural Steel

Excellent weldability and machinability
Good strength and toughness
Cost-effective structural material
Easy fabrication and forming
Widely available in multiple forms
Suitable for general structural applications
Reliable mechanical performance


Applications of ASTM A36 Carbon Structural Steel
ASTM A36 steel is widely used in industries requiring dependable structural materials.

Construction Industry
• Building structures
• Bridges and platforms

Industrial Fabrication
• Structural frames
• Base plates

Engineering Applications
• Machinery components
• Equipment supports

Infrastructure Projects
• Transmission towers
• Industrial sheds


Heat Treatment

ASTM A36 steel is generally supplied in hot rolled condition
Normalizing may be applied to improve toughness and grain structure
Heat treatment enhances mechanical uniformity


Conclusion

ASTM A36 / A36M carbon structural steel provides a versatile and economical solution for structural and industrial applications. With excellent weldability, good strength, and availability in multiple forms, ASTM A36 steel remains one of the most preferred materials for fabrication and construction projects.

Ladhani Metal Corporation supplies ASTM A36 / A36M carbon structural steel in plates, bars, beams, channels, and structural sections, ensuring high-quality products for construction, engineering, and industrial applications.

FOR REQUIREMENT OF THIS GRADE OR FOR DETAIL CONTACT US AT :-

www.ladhanimetal.com

www.ladhanimetal.in

ladhanimetal@gmail.com

info@ladhanimetals.com























 

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 2026-05-07T11:59:53

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