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The Long Products Market Development Group (LPMDG), formed in 1997, provides a unique forum for long products steel producers. Through the support of Steel Market Development Institute, the LPMDG is growing the market for value-added steel bar and rod products. With member companies and task forces--Automotive/Heavy Equipment and Construction/ Infrastructure--the group is committed to developing innovative solutions to the challenges facing their clients and the steel industry.
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Southfield, MI 48075
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Tag Archives: strain-life curves
Additional Effects of Sulfur on the Fatigue Properties of Low Alloy Steels
In the previous posting, it was shown that, as a result of the presence of elongated manganese sulfide inclusions, the fatigue properties of low alloy steels can exhibit directionally dependent behavior. Fatigue properties obtained in a test direction transverse to … Continue reading
Posted in News
Tagged fatigue, martensite, steel, strain-life, strain-life curves, sulfur
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Fatigue Performance As Measured By Fatigue Strength Quenched and Tempered Steels
In a recent posting, a comparison of the fatigue properties for normalized steels (163-259 BHN) showed that the strain-life curves fell within a rather narrow band, especially in the long-life regime. It was pointed out that, under a circumstance such … Continue reading
Posted in News
Tagged bhn, carbon steels, fatigue, hardness, long-life regime, low alloy steels, SAE 1045, SAE 4130, SAE 9254, spring steels, strain-life curves, tempered steel, tensile
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Fatigue Properties of Case-Carburized SAE 4320
Previously, the strain-controlled fatigue properties of the high hardness case and the lower hardness core of carburized low alloy steels were compared. The properties of the case were developed through simulation by diffusing carbon completely through fatigue specimen blanks. The … Continue reading
Posted in News
Tagged carburized steels, case/core composite, fatigue-specimen, high hardness, SAE 4320, SAE 8620 steel, strain-life curves
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Fatigue Properties of Case-Carburized SAE 8620
In recent postings, the strain-controlled fatigue properties of the high-hardness case and the lower-hardness core of carburized low-alloy steels were compared. The properties of the case were developed through simulation by diffusing carbon completely through fatigue-specimen blanks. The properties of … Continue reading
