Ferrosilicon

ASTM A 100 - 07: Standard Specification for Ferrosilicon

For professionals in steelmaking, foundries, and metal production, ensuring the quality and consistency of raw materials is paramount. ASTM A 100 - 07, the "Standard Specification for Ferrosilicon," provides an essential framework for procuring and utilizing this critical alloying element, safeguarding process integrity and final product performance.

What is A 100 - 07?

ASTM A 100 - 07 is an authoritative industry standard that defines the specifications for various grades of ferrosilicon intended for steelmaking and foundry applications. Developed by ASTM International, this comprehensive document establishes clear requirements for chemical composition and physical sizing, ensuring that ferrosilicon meets the stringent demands of metallurgical processes.

Scope & Purpose

This standard governs the procurement and acceptance of ferrosilicon alloys, specifically detailing acceptable ranges for silicon content and other key elements. It also addresses the physical characteristics, such as size gradations and associated tolerances, crucial for handling and melting efficiency in industrial furnaces. While A 100 - 07 focuses on ferrosilicon for its primary metallurgical uses, it does not cover general requirements for ferroalloys, which are addressed in a separate, complementary standard.

Who Must Comply?

• • Primary audience: Materials Engineers, Metallurgists, Production Engineers, Quality Control Inspectors, and Purchasing Agents involved in the procurement and use of ferrosilicon.
• • Industries affected: Steel Manufacturing, Foundries, Metal Production, and related Chemical Manufacturing sectors.
• • Compliance nature: Generally voluntary, but often becomes a mandatory requirement through contractual agreements and purchase orders.
• • Enforcement: Typically enforced by the purchasing entity through quality control checks and adherence to contractual specifications, referencing ASTM A 100 - 07.

Key Requirements Overview

The standard requires manufacturers to supply ferrosilicon grades that conform to specified chemical compositions, with defined limits for silicon, carbon, sulfur, phosphorus, and other alloying elements as per the grade. Professionals must ensure that the supplied ferrosilicon matches the agreed-upon size specifications and associated tolerances, critical for consistent melting behavior. Key provisions include the stipulation that all materials must adhere to the general delivery requirements outlined in ASTM A 1025, with A 100 - 07 taking precedence in case of conflict. The standard also mandates that manufacturers provide an analysis of each shipment, detailing silicon content and other specified elements upon request.

Related Standards & References

ASTM A 100 - 07 is often used in conjunction with ASTM A 1025, Specification for Ferroalloys and Other Alloying Materials, General Requirements, which provides overarching stipulations for all ferroalloys. For accurate material characterization, ASTM E 360, Test Methods for Chemical Analysis of Silicon and Ferrosilicon, offers proven analytical procedures. Additionally, ASTM E 11, Specification for Wire Cloth and Sieves for Testing Purposes, is referenced for defining particle size distributions.