# NAICS 331512: Steel Investment Foundries

The SBA size standard for NAICS 331512 is 1,050 employees (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 331512 |
| Title | Steel Investment Foundries |
| Level | 6 |
| Parent | 33151 |
| Size standard | 1,050 employees |
| Footnote | - |

## Description

This U.S. industry comprises establishments primarily engaged in manufacturing steel investment castings. Investment molds are formed by covering a wax shape with a refractory slurry. After the refractory slurry hardens, the wax is melted, leaving a seamless mold. Investment molds provide highly detailed, consistent castings. Establishments in this industry purchase steel made in other establishments.

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/331512/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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