More than 125 presentations of original, unpublished work will be delivered when the ASM Heat Treating Society convenes for its 29th conference and exhibition in Columbus, Ohio, October 24-26. The information exchanged in these sessions – as researchers and practitioners share their latest discoveries, theories, and advancements – will have a significant impact on design and manufacturing innovation as well as the fortunes of industry.
Continue readingOne Minute Mentor: CA-6NM Stainless Steel Casting Alloy
A significant practical advantage of the CA-6NM stainless steel casting alloy is its relative freedom from the rapid drop in hardness when tempered above about 950°F.
Continue readingOne Minute Mentor: Tempering Martensitic Stainless Steels
This graph shows AISI Type 410: Effect of tempering temperature on tensile properties. Heated to and held at 1800°F for 30 minutes; oil quenched; tempered 1 to 4 hours. Impact energy test used Izod specimens. Elongation was measured in 2 in.; yield at 0.2% offset.
Continue readingOne Minute Mentor: Heat Treating of Martensitic Stainless Steels
The effect of tempering temperature on hardness and tensile properties of high-alloy steels appears to have the same general form as those of low-alloy steel.
Continue readingOne Minute Mentor: Tempering Corrosion-Resistant Tool Steels
During tempering, the combination of properties such as hardness, toughness, and corrosion resistance, as well as residual stresses, can be adjusted within a wide range
Continue readingOne Minute Mentor: Tempering Temperature and Corrosion Properties
The graph shows the corrosion resistance of martensitic stainless steels with high hardness. It compares nitrogen alloyed grade (M340 = AISI 440Mod) with the standard grade AISI 440C.
Continue readingOne Minute Mentor: Tempering Behavior of Corrosion-Resistant Tool Steels
During tempering, the combination of material properties such as hardness, toughness, and corrosion resistance, as well as residual stresses, can be adjusted within a wide range
Continue readingOne Minute Mentor: Effects of Different Cooling Rates on Corrosion-Resistant Tool Steels
The graph shows the effects of different cooling rates on the toughness properties (un-notched samples) of AISI 420 and nitrogen-alloyed M333 tool steels.
Continue readingOne Minute Mentor: Tempering Characteristics of P20 Mold Steel
Tempering characteristics for P20 mold steels carburized at two different temperatures are shown in the graphs.
Continue readingOne Minute Mentor: Tempering Tool Steels
As shown in the graph for an M2 steel austenitized at 2225°F, the hardness of high-speed steel is directly affected by tempering temperature and time.
Continue reading