If you order ASTM A-532 class III type A from the foundry, it will be annealed to about 400 bn. As cast, it's about 450 bn. We heat treat in a vacuum furnace with a forced air quench and get about 600 bn.
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What is ASTM A532 Class 3 Type A?
Learn More: Granite25 ASTM A532 Class III Type A* (Granite25 ASTM A532 Class 3 Type A*) This alloy has the highest percentage of carbides, and therefore, a hardness that usually exceeds 680 BHN. It is typically found in the mining and recycling industries for parts like chute liners and blow bars.
Why is chrome white iron (ASTM A532) so abrasion resistant?
If you’re wondering why chrome white iron (ASTM A532) is so abrasion resistant, read this. These alloys are usually called high chrome white irons, and contain between 11% and 30% Cr, as well as other elements, to promote the presence of carbides in their microstructure.
Is pliant25 A532 Class 3 Type A abrasion resistant?
It is not as abrasion resistant as the other high chrome white iron alloys. We are proud to offer Pliant25 ASTM A532 Class III Type A which is the best alloy that can be used when drilling, tapping and broaching is required.
What type of ASTM rating do I need to increase toughness?
For further increased toughness use an ASTM A532 Class II Type B. For more information contact Penticton Foundry today. Physical and Mechanical Properties (reference Abrasion Resistant Handbook)
What is the ASTM A532?
The ASTM A532 specification refers to a group of high chrome white cast irons that have been engineered to offer high abrasion resistance to gouging. These alloys are particularly effective in industries such as the Oil Sands, mining, recycling and hydraulic fracturing.
What is A532 grade?
This grade of ASTM A532 is alloyed to increase the toughness and through-hardness in thick section castings. It is particularly useful in applications like a gyratory crusher in the mining industry, or any pulverizer that crushes abrasive media.
What is the hardness of a carbide?
This alloy has the highest percentage of carbides, and therefore, a hardness that usually exceeds 680 BHN. It is typically found in the mining and recycling industries for parts like chute liners and blow bars.
Is Penticton cast iron abrasion resistant?
Our abrasion resistant cast irons can be supplied in a variety of compositions and hardness. Depending on your needs, Penticton Foundry can cast to finished size and/or fully machine your component. If you’re wondering why chrome white iron (ASTM A532) is so abrasion resistant, read this.
Is Cr alloy hard?
This alloy is as hard as the 25% Cr alloy, but with a little more toughness, and a little less corrosion resistance. The hardness is maintained by the addition of molybdenum. It is a good choice for the mining and crushing industries, where thicker castings are used.
Is 30% chrome white iron corrosion resistant?
30% chrome white iron is the most corrosion resistant of the ASTM A532 iron alloys. It has found a real niche in flue-gas desulfurization, as well as other oxidizing environments and some reducing environments. It is not as abrasion resistant as the other high chrome white iron alloys.