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ASTM A105 / ASTM A 105 M  


National Steel Industries provides ASTM A105 grade materials which are used for various high temprature applications. Components such as Flanges, Fittings , Valves etc are manufactured out of it.

We supply in the following sizes:

Round bars:

Cold Drawn : 2mm dia to 100mm dia

Hot Rolled: 10mm dia to 250mm dia

Forged : 40mm dia to 1500mm dia


If you have a requirement of ASTM A105 Grade Material then, email us your Requirement details at or click the Inquiry form button below. 





Mentioned below is the chemical composition of the material.   







For each reduction for 0.01% below the specified carbon maximum(0.35%), an increase of 0.06% manganese above the specified maximum (1.05%) will be permitted up to a maximum of 1.35%

Sum of Cu, Cr, Ni and Mo should not exceed 1.00%

Sum of Cr and Mo should not exceed 0.32%

CE = 0.47max

C+Mn/6+(Cr+Mo+V)/5 + (Ni+Cu)/15




UTS             485N/mm2

Tensile        250N/mm2

Elongation  22min

Hardness    187BHN min

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