Model HS52: UL & ATEX Rated Explosion Proof Hollow Shaft Encoder|
BEI Sensors’ rugged Model HS52 is capable of operating directly in Division 1 and Zone 1 hazardous areas without the use of an Intrinsic Safety Barrier. The encoder is fitted with a unique flexible shaft bore design that allows for rigid mounting.
Ohmic, Your Source for Humidity Sensors, Dewpoint and Medical Test Equipment|
Ohmic Instruments Co. manufactures and sells: %RH sensors, AH sensors and transmitters, Dewpoint monitors, controllers & transmitters (from -40 to +80°F Dewpoint), and seven models of Ultrasound Power Meters. Please contact Ohmic with any questions.
Due to its versatility, there are a wide range of stainless steel fabricating techniques. It may be helpful to review some of the processes involved in order to better understand the benefits and disadvantages of the different types of stainless steel fabrication.
Work Hardening with Stainless Steel
Work hardening is the process of strengthening material through deformation. Relative to other varieties of steel, stainless steel work hardens quickly, although the exact rate depends on the specific grade of the alloy. The austenitic family of stainless steel, for example, has a hardening rate slightly higher than that of carbon steel and is a frequently used grade series in fabrication processes.
Work Hardening Rates of Stainless Steel
Since ferritic stainless steels yield lower work hardening rates, austenitic and martensitic stainless steels are the series that benefit most from work hardening applications. In some instances, austenitic stainless steel can be cold worked up to 1,000 MPa, although the maximum is typically in the 800 MPa range. When cold drawn, stainless steel may reach tensile properties of 2,000 MPa or greater, but such high strength levels are usually limited to fine wire sizes. Size is a concern due in part to the quick work hardening rate of stainless steel, which yields diminishing tensile strengthening at the core of a wire as its diameter increases.
Other Characteristics of Stainless Steel
Work hardening can also increase the magnetism of stainless steel. While its magnetism tends to be relatively slight, grades with higher work hardening rates exhibit higher levels of magnetic capacity after treatment. Stainless steel also undergoes greater deformation at slower forming speeds, requiring some high-speed forming processes to be slowed down to improve their work hardening efficiency.
Machining Stainless Steel
Grades 303, 430, 410 and 416 achieve resistance to chipping when alloyed with manganese sulfide. Due to the decreased ductility and corrosion resistance that comes with the addition of manganese sulfide, these grades have limited machining applications, though several free-machining grades have been developed to address the problem.
Tips on How to Machine Stainless Steel
Due to several concerns, such as the possibility for chipping, machining stainless steel can be a complex process. Here are some suggestions that may help with machining this alloy:
Welding Stainless Steel
Most types of stainless steel can be welded, but the degree of efficiency depends on the grade. Here are some tips for welding each category of stainless steel:
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