CM-PATRA / record

(no English title in the source record)

Filed / published / granted
2013-02-01 / 2015-04-24 / n/a
Offices
IN (includes the Indian office)
Applicants
Nippon Steel & Sumitomo Metal Corp (JP, foreign-industry)
Minerals
Iron / Steel / Manganese / Chromium (not on list)
Stages
Refining
CPC
C22B9/18
Abstract (first 170 chars)
This forged steel roll manufacturing method involves casting with the ESR method steel ingots which contain (in a mass%) C:0.3% or more Si:0.2% or more Cr:2.0 13.0% and M

Why it is labelled this way

Decided by cpc-rules+text: Matched iron-steel by text.

Source: Google Patents Public Data (BigQuery), CC BY 4.0.