Search
Filters
Close

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

98475 Optimizing a 6%Mo Stainless Steel for FGD Service

Product Number: 51300-98475-SG
ISBN: 98475 1998 CP
Author: Jack R. Maurer, James W. Underkofler
$0.00
$20.00
$20.00
Materials used in flue gas desulfurization systems are expected to be resistant to highly aggressive exposures. This does not always happen. Premature material degradation frequently results in unplanned outages, lost production, unsafe conditions and in some severe cases, the necessity to replace large portions of facilities well before their designed obsolescence. Understanding the exposure environments and operating conditions in conjunction with a materials capability is key to proper materials selection. Understanding the “fine tuning” needs of an alloy may be even more imperative to long term successful application. The need for special alloys to resist the aggressive corrosivity of FGD environments invariably dictates higher alloyed and probably more expensive materials. In order to be cost effective, these materials must perform at a high efficiency level and provide a long service life. The typical broad, generic specifications used to define material composition and mechanical property acceptance levels, may not be sufficient. This presentation will examine the optimization potential of one material, UNS N08367, a 6% molybdenum containing stainless steel. The alloy has been proven in many environment, but use of optimization techniques may augment its performance. Included will be a review of the positive and negative effects of certain major and minor alloying additions, the response to varied thermal treatments, control of surface depletion and stress levels, and fabrication, with optimization in mind. The items reviewed, will have applicability to other material systems, with some modifications to suit the specific alloy and environments. Keywords: stainless steels, crevice corrosion, pitting, FGD systems, alloying, annealing, pickling, testing
Materials used in flue gas desulfurization systems are expected to be resistant to highly aggressive exposures. This does not always happen. Premature material degradation frequently results in unplanned outages, lost production, unsafe conditions and in some severe cases, the necessity to replace large portions of facilities well before their designed obsolescence. Understanding the exposure environments and operating conditions in conjunction with a materials capability is key to proper materials selection. Understanding the “fine tuning” needs of an alloy may be even more imperative to long term successful application. The need for special alloys to resist the aggressive corrosivity of FGD environments invariably dictates higher alloyed and probably more expensive materials. In order to be cost effective, these materials must perform at a high efficiency level and provide a long service life. The typical broad, generic specifications used to define material composition and mechanical property acceptance levels, may not be sufficient. This presentation will examine the optimization potential of one material, UNS N08367, a 6% molybdenum containing stainless steel. The alloy has been proven in many environment, but use of optimization techniques may augment its performance. Included will be a review of the positive and negative effects of certain major and minor alloying additions, the response to varied thermal treatments, control of surface depletion and stress levels, and fabrication, with optimization in mind. The items reviewed, will have applicability to other material systems, with some modifications to suit the specific alloy and environments. Keywords: stainless steels, crevice corrosion, pitting, FGD systems, alloying, annealing, pickling, testing
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 98473 Experienced Materials in Wet Limestone
Available for download

98473 Experienced Materials in Wet Limestone - Gypsum FGD System

Product Number: 51300-98473-SG
ISBN: 98473 1998 CP
Author: S. Hasegawa, K. Ieashita , E. Ochi, T. Higuchi
$20.00
Picture for 98484 FGD METALS AND DESIGN TECHNOLOGY:
Available for download

98484 FGD METALS AND DESIGN TECHNOLOGY: PAST PROBLEMS/SOLUTIONS, PRESENT STATUS AND FUTURE OUTLOOK

Product Number: 51300-98484-SG
ISBN: 98484 1998 CP
Author: D.C. Agarwal, Miles Ford
$20.00
Picture for 98479 APPLICATIONS AND EXPERIENCES WITH SUPER
Available for download

98479 APPLICATIONS AND EXPERIENCES WITH SUPER DUPLEX STAINLESS STEEL IN WET FGD SCRUBBER SYSTEMS.

Product Number: 51300-98479-SG
ISBN: 98479 1998 CP
Author: R. Francis, G. Byrne, G. Warburton, S. Hebdon
$20.00