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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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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
--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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