Cast iron
Malleable Iron 32510
Manufacturer or standards-body identification; product values do not apply to every form or condition.
Identity / state reference
What distinguishes this material
This is a ferritic malleable-iron casting grade with temper-carbon structure; do not confuse it with a ductile-iron grade that has a similar-looking strength label.
- Designation in this reference
- ASTM A47 Grade 32510
- Forms covered by the sources
- Ferritic malleable-iron castings.
- States to distinguish or confirm
- Confirm malleabilizing heat treatment and the applicable casting/test specimen specification.
- 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 A47/A47M-99(2026) ferritic malleable iron
Current publisher scope for ferritic malleable castings and Grade 32510; no numeric acceptance table copied from the abstract.
ASTM A47/A47M-99(2026) ferritic malleable iron ↗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 unverified EN/JIS equivalence and universal hardness/tensile data; the standard abstract verifies scope, not a full numeric property table.
- Withdraw the legacy generic hardness (110–156 HB) and tensile-strength (340 MPa (49 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.