ASTM A105 | A105N Carbon Steel
ASTM A105 | A105N Carbon Steel  Carbon Steel Malaysia, Selangor, Kuala Lumpur (KL), Klang Supplier, Suppliers, Supply, Supplies | E STEEL SDN. BHD.
E Steel SDN BHD is Malaysia steel supplier / stockist / Metal B2B Platform and Marketplace which supply a wide range of Carbon Steel Sheets , Carbon Steel Round Bar and Rod, Carbon Steel Plate from ASTM A36 , 760 Steel Plate and rod , A105 Carbon Steel , etc.   
Our spirit is to help the local SMEs on the sourcing of different steels and metal with no minimum order (NO MOQ).  

We have over 100 Tons of Carbon Steel Round Bar ranging from DIA 16mm to DIA 760mm ready to fulfill the market demands to the General Engineering Industry , Palm Oil Industry , etc.  

Grades : ASTM A105 , S45C , S50C , AISI 4140 (709 Steel Equivalent), AISI 4340 (705 Steel Equivalent), AISI 4130, 5919, 6587


ASTM A105 Hot Rolled Bar 

ASTM A105 steel bar is a steel specification for low carbon forged components.


Carbon Steel A105 Chemical Composition

Carbon (max) 0.35
Manganese* 0.60-1.05
Phosphorus (max) 0.035
Sulfur (max) 0.040
Silicon 0.10-0.35
Copper (max) 0.40
Nickel (max) 0.40
Chromium (max) 0.30
Molybdenum (max) 0.12
Vanadium (max) 0.08
Niobium (max) 0.02

*Manganese can be up to 1.35% with decrease in Carbon


Specified Mechanical Properties for “Grade A105”

Tensile strength (psi) min 70,000 psi
Yield strength (psi) min 36,000 psi
Elongation in 2” (%) min 22%
Reduction of area (%) min 30%
Brinell Hardness (BHN) max 187

ASTM A105 Steel Applications

Typical applications for this grade of steel include pipes, valves and flanges.

Shapes and Sizes 

E Steel Sdn Bhd supplies A105 steel Round bar in a variety of sizes ranging from 3/4”- 12”.

Heat Treatment

Heat treatment is not required except for ASTM A 105 carbon steel forging. However, there are some exceptions that will require heat treatment to improve its mechanical properties for better application.

The typical heat treatment conducted for A105 carbon steel forgings includes annealing(A), normalizing(A), normalizing and tempering(NT), quenching and tempering(QT). Especially, normalizing at approximate 950°C for 2.5 hours is often required by many clients to eliminate possible internal stress in the forgings. These materials are usually marked as “ASTM A105N”.


  • A105 and A350-LF2 are standard specifications for forged carbon steel piping components. A105 for ambient and higher-temperature service; A350-LF2 for low-temperature service with Charpy V-Notch impact energy testing. Components include flanges, various fittings and valves. 

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