Tin Mill Products, Black Plate, Single-Reduced

A625/A625M: Standard Specification for Tin Mill Products, Black Plate, Single-Reduced

In the demanding landscape of manufacturing, the selection of high-quality raw materials is paramount for product integrity and production efficiency. For professionals involved in container, closure, sign, and toy manufacturing, understanding the ASTM A625/A625M standard is essential. This industry-leading specification provides a comprehensive framework for single-reduced black plate, ensuring consistency and performance in a wide array of applications.

What is A625/A625M?

ASTM A625/A625M is an authoritative standard that defines the requirements for single-reduced black plate. This material is produced from low-carbon, cold-reduced steel and is typically supplied in coils or cut sizes. Its primary purpose is to establish the necessary material properties and characteristics for its use in the fabrication of various consumer and industrial goods, particularly those requiring subsequent coating or finishing.

Scope & Purpose

This standard specifically governs the production and supply of single-reduced black plate intended for applications such as container manufacturing, closures, signage, and toys, as well as for plating processes. It outlines provisions for the material's surface appearance, finish options, and whether it is supplied dry or oiled, with or without surface treatments. While it details the material itself, it does not cover the manufacturing processes of the end products.

Who Must Comply?

• • Primary audience: Materials Engineers, Quality Control Inspectors, Production Managers, Procurement Specialists, and Sales Engineers.
• • Industries affected: Steel Production, Metal Processing, Container Manufacturing, Food and Beverage Packaging, Automotive Manufacturing, Sign Manufacturing, and Toy Manufacturing.
• • Compliance nature: Voluntary, but widely adopted as an industry best practice and often a contractual requirement.
• • Enforcement: Primarily through contractual agreements between suppliers and purchasers, and by quality assurance departments verifying material conformance.

Key Requirements Overview

The ASTM A625/A625M standard mandates several critical aspects for single-reduced black plate:

• • Material Composition: It requires the use of low-carbon, cold-reduced steel as the base material.
• • Form and Dimensions: The specification covers the material when supplied in coils or cut sizes, with defined thickness ranges in both inch-pound and SI units.
• • Surface Finish and Treatment: Professionals must ensure the specified surface appearance and finish (e.g., ground-roll, shot-blasted) align with the intended application, such as for lithographing or plating.
• • Oiling and Dry Conditions: Key provisions include the option for the material to be supplied dry or oiled, with specific considerations for oil types if required.
• • General Requirements: The standard emphasizes adherence to general requirements for tin mill products, as detailed in complementary ASTM standards.

Related Standards & References

To fully leverage the benefits of A625/A625M, professionals should also consult:

• • ASTM A623/A623M: This standard provides the general requirements for tin mill products, acting as a foundational document that A625/A625M references for detailed specifications on thickness, mechanical properties, and other critical parameters.
• • **ASTM A62