ASTM A Class II Type B high chrome white iron is used in operating environments where abrasion and impact are the wear mechanisms. ASTM A standard has issued the chemical and hardness requirements for abrasion-resistant cast iron material grades, type A, B, C, D. ASTM A – Free download as PDF File .pdf), Text File .txt) or read online for free. Nihard.

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Class III Type E 25% Cr Martensitic White Cast Iron

My question is, can high chrome cast iron be “heat treated” to re-harden to HB after annealing or even tempering to ? Click here to view all the property values for this datasheet as they were originally entered into MatWeb. Join your peers on the Internet’s largest technical engineering professional community.

Close this window and log in. Re-hardening is aa532 advised as parts break easily. Are you an Engineering professional?

As a first step, I would temper this casting to drop the hardness to BHNbefore attempting annealing. The following conditions for casting will be supplied: This abstract is a brief summary of the referenced standard. We also ask that ashm refer to MatWeb’s terms of use regarding this information.

We anticipated HB, which is 51 to 52 Rockwell C. The longer, more complicated part calls for the part to be annealed to HB. Worth a shot for a few parts, for 50 parts that approach isn’t going to be realistic. About 2 feet mm diameter.


Questions or comments about MatWeb? And we should try to confirm the actual material.

A little less than 1 inch in thickness 24 mm A 1. Thank you a53 helping keep Eng-Tips Forums free from inappropriate posts. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

It’s easy to join and it’s free. Then we would harden it after machining? Students Click Here Join Us! This specification deals with abrasion-resistant cast irons used for mining, milling, earth-handling, and manufacturing industries. If the issue is that they take longer to machine or they go through tooling faster, can you throw more money at the machine shop to just work through it?

Digital Transformation may be awtm in a number of different ways by analysts or enterprise software vendors. The chemical composition of a class and type that is, Class I, Type A a5332 conform to the range of values specified for carbon, manganese, silicon, nickel, chromium, molybdenum, copper, phosphorus, and sulfur. To see MatWeb’s complete data sheet for this material including material property data, metal compositions, material suppliers, etcplease click the button below.

ASTM A Class III Type A 25% Cr – Magsen Foundry

w532 You need to check on the current structure, and perhaps do some trials. Please contact us at webmaster matweb. We have approached the foundry to answer questions about softening and heat treating options. Also, if distortion is a concern, provide some supports.


Historical Version s – view previous versions of standard.

Hi arunmrao, attached is an image of the part in question, already cast and HRC ish, and needing machining of several features. We were casting our own and kept retained austenite very low. Promoting, selling, recruiting, coursework and thesis posting is forbidden.

ASTM A532 Grade III-A as cast

Combining values from the two systems may result in non-conformance with the standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

Red Flag This Post Please let us know here why this post is inappropriate. A machine shop has reported that some castings we sent for machining are harder than our drawing specifies. These alloys may be made by melting process and shall have microstructures that consist of carbides, martensite, bainite, austenite, and in exceptional cases, minor amounts of graphite or pearlite.

For The shorter, simpler part we called for an as cast hardness of HB. Register now while it’s still free! Download Now Defense manufacturing is all about project manufacturing and project accounting. Property Data This page displays only the text of a material data sheet.