From the photos, it looks like there is a welded steel pad on the underside, and I speculate that the attachment weld toe is the crack initiation site. Before undertaking a repair, the source and the reason for the crack should be determined. Otherwise, your crack will return again and again and again.
Bob
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of hany alfy
Sent: Monday, October 28, 2013 5:28 AM
To: materials-welding@googlegroups.com
Subject: [MW:19098] Crane supporting beam repair
Dear Experts
Regarding the A/M Subject please find attached photos for Crane Manitowc support beams
I Need your opinion what will be the grade of this beam and how to repair the cracks in these photos
Regards,
H.A
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