About Us
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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Steel Market Development Institute
2000 Town Center Suite 320
Southfield, MI 48075
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Tag Archives: strength
Fatigue Properties of Modified Steels Carburized at High Temperatures
The objective of phase XI is to compare the performance of carburized steel in bending and axial fatigue loading conditions. Carburization is a surface heat treatment process which adds carbon to the surface of a material to increase its hardness … Continue reading
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Tagged auto, automotive, business, energy, fatigue, industry, market, MPa, steel, strength, technology
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The Effect of Bainite on Strength and Fatigue in Through-Carburized SAE 8620 Test Bars
A case microstructure may consist of martensite, retained austenite and bainite, and depends upon alloy and cooling rate. The impact of bainite on fatigue is not well known. Sometimes carburized parts are intentionally austempered to increase the amount of bainite … Continue reading
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Tagged bainite, elongation, fatigue, SAE 8620, strength, Surface Hardness
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Hardness versus Strength
There is a very good relationship between hardness and strength for steel. If the hardness is known the tensile strength can be estimated, and the reverse is also true. This relationship is valid for tensile strength but not for yield … Continue reading
Strength and Fatigue Life versus Carbon Content at High Hardness (60 HRC)
The strength, fatigue and hardness data for several iterations with a high hardness level, around 60 HRC are shown in Table 1. The steels in these iterations are both plain carbon and low alloy grades with carbon contents ranging from … Continue reading