Re: [MW:10202] 4140 or EN19 (Grade 8.8)

It's a function of heat treatment parameters- QT-; CLASS 8.8 -800 N/mmp-strengh rezistence and 640 N/mmp yeld strengh

From: Ravi Karuskar <rkaruskar@gmail.com>
To: materials-welding@googlegroups.com
Cc: ravi.karuskar <ravi.karuskar@trelleborg.com>
Sent: Monday, March 7, 2011 12:36 PM
Subject: [MW:10197] 4140 or EN19 (Grade 8.8)

Dear Experts,

Pls. see below chemical composition and let me know which composition
is perfect for made Grade 8.8 material.

Mat.    Carbon    Molybdenum    Chromium    Manganese    Phosphorous    Sulfur    Silicon
SAE4140    0.37-0.49    0.15-0.25    0.75-1.20    0.65-1.10    0.035max    0.040    0.15-0.35
En-19    0.35-0.45    0.20-0.40    0.90-1.50    0.50-0.80    0.035max    0.040    0.10-0.35





--
Ravi Karuskar
Trelleborg Marine Systems India Pvt. Ltd.,
Akik,Bodakdev, S.G.Highway, Ahmedabad
Mob. 9727802502
Email : rkaruskar@gmail.com

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