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ASTM International, formerly known as the American Society for Testing and Materials, is a globally recognized organization that develops and publishes technical standards for a wide range of materials, products, systems, and services. ASTM steel standards are critical for ensuring the quality, safety, and performance of steel products used across various industries.
ASTM A582/A582M-95b (2000), Grade 303Se
What is the Purpose of ASTM Steel Standards?
ASTM steel standards play a vital role in the steel industry by providing a framework for the consistent production and evaluation of steel products. Whether used in construction, manufacturing, or specialized applications, adherence to these standards ensures materials meet the required quality, performance, and safety benchmarks. The general purposes of ASTM steel standards include:- Define Material Properties – Specify the chemical composition, mechanical properties, and metallurgical characteristics of different types of steel.
- Quality Control – ASTM steel standards help manufacturers produce steel products with consistent quality, ensuring reliability in critical applications.
- Compatibility - ASTM standards ensure compatibility and interoperability of steel components in global markets by providing a common language.
- Guide Testing Methods – ASTM steel standards outline standardized testing procedures to evaluate steel properties, such as tensile strength, hardness, and corrosion resistance.
How to Read ASTM Standards?
ASTM codes consist of a letter followed by a sequentially assigned number. The letters refer to different categories of products, materials, or processes. The number that comes after the prefix letter is arbitrary and identifies the exact code or standard within the category specified by the prefix. Examples include:| ASTM Symbol | Meaning |
| A | Ferrous metals and products (steel) |
| B | Nonferrous metals and products (coatings) |
| C | Cementitious, ceramic, concrete, and masonry materials |
| D | Miscellaneous materials |
| E | Miscellaneous subjects |
| F | End-use materials (fasteners) |
| G | Corrosion, deterioration, weathering, and degradation of materials and products |
| H | Joint committee and district recipients |
Steel Product Code Example
Here is an example of how an ASTM code reads and the subsequent explanation of what it means:ASTM A582/A582M-95b (2000), Grade 303Se
- A: Describes a ferrous metal.
- 582: A sequential number without any relationship to the metal’s properties.
- M: Indicates the standard is written in rationalized SI units.
- 95: Indicates the year of adoption or last revision.
- b: Indicates the third revision of the standard in 1995.
- (2000): Indicates the year of last re-approval.
- Grade 303Se: Indicates the grade of steel with a selenium addition.
ASTM Steel Standard Categories
ASTM steel standards cover various types of steel, categorized based on their application and characteristics. Major categories include:Structural Steel
Structural steel is used in construction for beams, columns, and frames due to their strength and durability. Examples include:Tool & Alloy Steel
Alloy steels are used for tools, dies, and machinery parts requiring specific hardness and toughness. Examples include:- ASTM A681
- ASTM A213
Stainless Steel
These standards govern corrosion-resistant steels commonly used in chemical, medical, and food processing industries. Examples include:- ASTM A240
- ASTM A276
Steel Pipe & Tubing
Steel pipe and steel tubing is used in pipelines, mechanical systems, and transportation of fluids and gases. Examples include:- ASTM A106
- ASTM A513
Steel Sheet & Plate
Steel sheets and plates are designed for use in a variety of structural applications in the manufacturing, industrial, and construction industries. Examples include:Differences Between ASTM and SAE Steel Grades
ASTM and SAE steel grades are primarily differentiated by their focus, classification, and potential applications. ASTM standards are ideal for projects requiring material performance and safety testing, while SAE grades excel in automotive and machinery industries where chemical composition is paramount. Understanding these differences ensures the correct material selection for your project’s specifications.IMS is Your Locally Trusted Metal Supply Company
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