Shell Global Solutions International B.V. definition as follows
High-alloy steel: Stainless steels, 12 Cr and higher
Low-alloy steel: Steels from 0.5 Mo up to 9Cr-1Mo
Steels from 0.5 up to 9% Ni
Unalloyed steel: Carbon manganese steels, including 0.3 and 0.5 Mo steels
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: Wednesday, July 02, 2008 1:56 PM
To: materials-welding@googlegroups.com
Subject: [MW:887] RE: 882] alloy steels
There is no such clear demarcation, can vary from institution to institution
ASM classification as below
Plain carbon steel (<0.2C called as low carbon steel)
LAS <= 8% of total alloying elements
HAS > 8% of total alloying elements
By this all your below netioned materials can be called as LAS (except P91), where as even P91 comes under LAS family in case ASME BPV
More views are welcome!
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of gajjalla surya prakash
Sent: Tuesday, July 01, 2008 5:24 PM
To: materials-welding@googlegroups.com
Subject: [MW:882] alloy steels
dear members,
how can we classify the alloysteel materials as low alloy /highalloy.
if we can classify then P 91/P22/P11/16M03/DINWB 36
comes under which category.
surya prakash gajjalla
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