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Patent No: IN509539 [India] Application No: 201731007114
Title: Low alloy steel with improved abrasion resistance and impact toughness through direct water quenching to room temperature
Issue Date: 12-02-2024 File Date: 28-02-2017
Inventor(s): Gaurav Kumar Bansal; V Rajinikanth; Vikas Chandra Srivastava; Rajesh K Minj; Swapan K Das; Sandip Ghosh Chowdhury
IPC Classification: C21D1/00, C22C38/00, C22C37/00
Abstract:
The invention relates to a process for producing low alloy steel comprising the steps of: casting a steel alloy with composition 0.10 to  0.25 - carbon, 1.0 – 1.8 Manganese, 0.40 – 0.6 Silicon, 0.15 – 0.25 Chromium, 0.10 – 0.15 Molybdenum, 0.40 – 0.65 Nickel, 0.34 –  0.69 Carbon equivalent, 0 – 0.01 Vanadium, 0 -0.08 Titanium, 0 – 0.01 Boron, balance being Iron and residual impurities (in wt.%);  homogenizing the steel alloy by austenitizing at 1150-1200°C for 30-45 minutes; and direct by water quenching to room temperature.
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Industrial Applications Alloys [Metallurgy] Making Processes [Metallurgy]