Cast iron
High-Chrome White Iron
Family identity only. The legacy page does not establish a specific ASTM class/type, chemistry or supplied condition.
Identity needs confirmation
What distinguishes this material
This is a family name. ASTM A532 class/type and heat-treatment condition are required before a composition or hardness range can identify the purchased casting.
- Designation in this reference
- High-chromium white iron (class/type unspecified)
- Forms covered by the sources
- Abrasion-resistant castings.
- States to distinguish or confirm
- Require explicit as-cast, hardened, stress-relieved or softened-for-machining condition as applicable.
- Temperature and exposure
- No universal service-temperature limit or room-temperature property set is assigned. Use the cited product document and the purchase certificate.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- What product standard, edition and complete grade are on the material certificate?
- What product form, section size and delivery/heat-treatment condition will be machined?
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
ASTM A532/A532M abrasion-resistant cast irons
Specification-family scope only; a generic high-chromium white-iron name does not identify its class/type or condition.
ASTM A532/A532M abrasion-resistant cast irons ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Remove the unsupported assumption that every high-chrome white iron is 26% Cr/Class III Type A and the universal 620 MPa value.
- Withdraw the legacy generic hardness (550–650 HB) and tensile-strength (620 MPa (90 ksi)) pair: the old page does not establish a matching product, heat treatment, section and test source.
- Remove the unsupported cutting-speed table and machinability percentage; select tooling only after the actual material condition is known.
Other references in Cast iron
Related references, not equivalent substitutes.