Metallurgical Investigation Conducted for Baydar and Associates (B&A) of Black Import Flemish Eye Sleeves December 29, 2011 Completed by: George Jarjoura, Ph.D., P.Eng. Momotaj Aghdasi, P.Eng. Faculty of Engineering Dalhousie University P.O. Box 1000 Halifax, Nova Scotia B3J 2X
The black Import Sleeves were tested to see how they compared to Domestic sleeves and Crosby sleeves. The following comparative analysis was based on three areas of criteria:
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Metallurgical Investigation Conducted for Baydar and Associates (B&A) of Black Import Flemish Eye
Sleeves
December 29, 2011
Completed by:
George Jarjoura, Ph.D., P.Eng. Momotaj Aghdasi, P.Eng.
Faculty of Engineering Dalhousie University
P.O. Box 1000 Halifax, Nova Scotia B3J 2X
1
Introduction Baydar & Associates Inc. (B&A), a company based in Halifax, Nova Scotia, has been in
the rigging industry since 1999. Despite an impeccable safety record, the company has been
having problems with some Flemish eye sleeves that cracked (failed) during swaging in the past.
Previously, Dalhousie University had done a comparative product analysis between black (non-
galvanized) B&A domestic Flemish eye sleeves and the black Crosby Flemish eye sleeve.
Recently, Dr. George Jarjoura of the Materials Engineering Program at Dalhousie University has
been approached to examine a new set of black Import sleeve samples to ensure quality of the
batch and to see how they compare with the B&A domestic sleeves and the Crosby sleeves.
One set of black Import Flemish eye sleeve samples were provided by Baydar &
Associates Inc. as materials for examination. Three un-swaged black Import samples (sleeve sizes
5/8ʺ″, 1/2ʺ″ and 3/8ʺ″), one swaged black Crosby sample (sleeve size 5/8ʺ″) and one swaged black
Import (sleeve size 5/8ʺ″) were provided for analysis.
Comparative Product Analysis
The black Import Sleeves were tested to see how they compared to Domestic sleeves and
Crosby sleeves. The following comparative analysis was based on three areas of criteria:
1. Alloy Composition
2. Microstructure
3. Material Hardness
Alloy Composition
A chemical analysis was conducted on the three black Import samples, the swaged black
Import sample and the swaged black Crosby sample and the results were compared to standard
composition of Steel 1010 as defined by ASI-SAE, B&A Domestic sleeves and Crosby sleeves.
The results are presented below in Table 1. Data used in Table 1 for Crosby and B&A Domestic
sleeves were taken from previous reports[1],[2]. Due to equipment issues at the laboratory, the
amount of carbon in one of the black Import samples was unable to be determined. The
compositional results in Table 1 has shown that both the B&A Domestic and the Crosby samples
fall within standard specifications for 1010 Steel, however the black Import samples do not.
2
Table 1: Comparative analysis of alloy composition
Element wt% Fe C P S Cu Mn Al Cr Si ASI-ASE Steel
1010 Balance 0.08-
0.13 0.040 0.050 0.20 0.30-
0.60 0.1 Max
Black Crosby Balance 0.128 0.002 0.022 0.027 0.414 0.045 0.028 0.066 Black B&A Domestic