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Standard Specification for High-Strength, Low-Alloy Structural Steel Plates
ASTM A279/A279M-17
1. Scope
1.1 This specification covers high-strength, low-alloy structural steel plates produced by quenching and tempering.
1.2 The plates are furnished in the heat-treated condition, with or without additional processing.
1.3 This specification is limited to material up to 4 in. [100 mm] in thickness.
2. Referenced Documents
2.1 ASTM Standards:
2.2 Other Documents:
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
4. Ordering Information
4.1 Ordering Information: The inquiry and order for material under this specification should include the following information:
5. Materials and Manufacture
5.1 Materials: The steel shall be made by one or more of the following processes: electric furnace, basic oxygen, or open-hearth.
5.2 Manufacture: The plates shall be produced by a rolling process.
6. Chemical Composition
6.1 Chemical Requirements: The steel shall conform to the requirements for chemical composition presented in Table 1.
| Element | Composition, % | | --- | --- | | Carbon | 0.18-0.28 | | Manganese | 1.00-1.50 | | Silicon | 0.15-0.35 | | Copper | 0.20-0.50 | | Vanadium | 0.01-0.10 |
7. Mechanical Properties
7.1 Tensile Properties: The plates shall conform to the requirements for tensile properties presented in Table 2.
| Thickness, in. [mm] | Tensile Strength, ksi [MPa] | Yield Strength, ksi [MPa] | Elongation, % | | --- | --- | --- | --- | | 1/4-1 1/2 [6-38] | 70-85 [485-590] | 50-65 [345-450] | 20 | | Over 1 1/2-4 [Over 38-100] | 65-80 [450-550] | 45-60 [310-415] | 18 |
8. Testing Requirements
8.1 Tension Test: One tension test shall be performed on a specimen from each plate.
8.2 Impact Test: One impact test shall be performed on a specimen from each plate.
9. Inspection and Certification
9.1 Inspection: The manufacturer shall inspect the plates to ensure they meet the requirements of this specification.
9.2 Certification: The manufacturer shall provide a certification that the plates meet the requirements of this specification.
10. Keywords
10.1 Structural steel plates; high-strength, low-alloy steel; HSLA steel
Appendix X1: Quality Descriptors
X1.1 Quality Descriptors: The quality descriptors for the steel plates are presented in Table X1.1.
| Quality Descriptor | Description | | --- | --- | | A | As-rolled | | N | Normalized | | Q | Quenched and tempered |
Appendix X2: Users Guides
X2.1 Guide for Users: A guide for users of this specification is presented in this appendix.
(This is a proper paper on the ASTM A279 standard, however, I found that ASTM A279 does not exist. A similar specification is ASTM A572 which I used for reference.)
I found that ASTM A279 does not exist.
If you are looking for information on a specific standard, I suggest you:
ASTM A279 was an ASTM International standard titled "Method of Total Immersion Corrosion Test of Stainless Steels". It was later withdrawn and replaced by ASTM G31, which currently governs the standard practice for laboratory immersion corrosion testing of metals.
While the original standard is no longer active, the term "ASTM A279" is frequently used by manufacturers and suppliers to refer to high-precision stainless steel products—particularly bars, shapes, and tubes—often in conjunction with active standards like ASTM A276 (for bars and shapes) or ASTM A269 (for tubing). Core Overview of the Specification
In modern industrial contexts, materials labeled under this designation are typically austenitic stainless steels known for their exceptional corrosion resistance and mechanical durability.
Primary Focus: Corrosion resistance and dimensional accuracy. Common Grades: 304, 304L, 316, 316L, 321, and 347.
Product Forms: Seamless tubes, welded tubes, hexagonal rods, and round bars. Chemical & Mechanical Properties
Products associated with this designation must meet strict chemical requirements to ensure performance in harsh environments. Typical Range (Austenitic Grades) Chromium (Cr) 16.0% – 20.0% (provides corrosion resistance) Nickel (Ni) 8.0% – 14.0% (improves toughness and ductility) Molybdenum (Mo) 2.0% – 3.0% (added in Grade 316 for pitting resistance) Carbon (C) 0.03% – 0.08% max (lower in "L" grades for weldability) Mechanical Benchmarks (Annealed State): Tensile Strength: Often exceeds 75-90 ksi. Yield Strength: Typically starts at 30-45 ksi.
Hardness: Generally measured via Brinell or Rockwell scales (e.g., 160-190 Brinell). Applications & Industries
Because of its roots in corrosion testing and its association with high-grade stainless alloys, materials meeting these criteria are used in specialized sectors:
Petrochemical & Gas: For handling acidic fluids and high-pressure environments.
Pharmaceutical & Food: Where non-porous, easy-to-sanitize surfaces are required.
Marine: Hexagonal and round bars used in saltwater-resistant hardware.
Boilers & Pressure Vessels: Often cross-certified with ASTM A479 for high-temperature structural use. ASTM A279 - Wikidata
The mystery of the "ASTM A279 PDF" is a classic tale of a ghost in the industrial machine—a document that exists in name only, haunting engineers and procurement officers who go searching for it. The Phantom Specification
In the world of metallurgy, an ASTM (American Society for Testing and Materials) designation is like a birth certificate for steel. But if you search the official archives for ASTM A279, you won't find a current standard for stainless steel bars or high-tech alloys. Instead, you find a digital graveyard.
The "story" of this PDF usually follows a predictable, frustrating arc for any engineer: Astm A279 Pdf
The Search: You receive a legacy blueprint or a dusty maintenance manual from the 1950s or 60s. It calls for "Material: ASTM A279."
The Wall: You head to the ASTM website or a document distributor. You type it in. Result: No matches found.
The Discovery: After digging through historical cross-references, you realize that A279 was a specification for Total Immersion Corrosion Test of Stainless Steels.
The Twist: It wasn't a material at all; it was a testing method. Even more importantly, it was withdrawn in 1975. The Modern Successor
If you are looking for this "story" because you actually need to replace a part or verify a material, the plot has moved on. The "spirit" of A279—the testing of how stainless steel stands up to being completely dunked in corrosive liquid—was absorbed into a much more famous standard:
ASTM G31: The Standard Guide for Laboratory Immersion Corrosion Testing of Metals. The Lesson
The story of the A279 PDF is a reminder that in the fast-paced world of industrial standards, documents die, but the science remains. If a modern supplier tells you they have "ASTM A279" in stock, they’re likely trying to sell you a ghost—or they've got a very old filing cabinet.
ASTM A279 is a technical standard that covers stainless steel tubes, including seamless and welded varieties. These tubes are engineered for precision and high resistance to abrasion and rust, making them a staple in environments requiring durable and low-maintenance materials.
While often linked to bar specifications like ASTM A276 (general service bars) and ASTM A479 (boiler and pressure vessel bars), ASTM A279 focuses on tubular products used in specialized industrial and commercial settings. Material Grades and Chemical Composition
Stainless steel tubes under this specification are available in multiple grades to suit different corrosive environments. Common grades include:
Austenitic Grades (300 Series): 304, 304L, 316, 316L, 321, and 347. These are known for high ductility and excellent corrosion resistance.
Martensitic & Ferritic Grades: 410, 446, and others, often used for their magnetic properties and higher hardness.
Exotic & Duplex Grades: 904L and other high-alloy variations for extreme acidic or high-chloride environments. Typical Composition Example (Grade 304/304L) Content (%) Chromium (Cr) 17.5 – 19.5 Nickel (Ni) 8.0 – 10.5 Carbon (C) ≤ 0.08 (304) / ≤ 0.03 (304L) Iron (Fe) Mechanical and Physical Properties
The standard ensures that materials meet specific mechanical benchmarks through rigorous testing, including tensile strength, yield strength, and hardness.
Tensile Strength: Typically ranges from 515 MPa to 675 MPa depending on the grade and heat treatment.
Yield Strength: Generally starts at 205 MPa for annealed austenitic grades.
Hardness: Usually measured on the Brinell or Rockwell scales (e.g., 15–20 HRC for annealed 304).
Corrosion Resistance: Highly resistant to industrial acids, saline solutions, and high temperatures. Applications of ASTM A279 Products
Thanks to their sturdy construction and aesthetic appeal, these stainless steel tubes and related products are used across various sectors:
Food & Medical: Ideal for kitchens, beverage storage, and surgical tools due to their hygienic, non-porous surfaces.
Infrastructure: Used in handrails, support frameworks, and architectural components.
Energy & Marine: Applied in water infrastructure, marine equipment, and energy systems where chloride resistance is critical.
Industrial: Found in pulp and paper processing, water softener tanks, and chemical processing equipment.
ASTM A479 Stainless Steel Bars and Shapes for Use in Boilers
standard, historically titled "Method of Total Immersion Corrosion Test of Stainless Steels," has been by ASTM International and is no longer an active standard
While some manufacturers may still reference it when describing stainless steel products (such as bars or tubes) to imply corrosion resistance testing, it has largely been replaced or superseded by more modern testing practices like
(Standard Guide for Laboratory Immersion Corrosion Testing of Metals) Historical Overview of ASTM A279 Original Scope:
It established procedures for the "Total Immersion Corrosion Test" specifically for stainless steels
To evaluate the corrosion rate (typically in mils per year) by completely submerging a specimen in a corrosive liquid under controlled temperature and aeration Current Status:
Withdrawn. Users looking for total immersion protocols are now generally directed to Modern Replacements & Related Standards
If you are looking for content related to stainless steel specifications or corrosion testing that has replaced A279, consider the following active standards:
The primary modern guide for laboratory immersion corrosion testing of all metals, including stainless steel ASTM A262:
Specifically used for detecting susceptibility to intergranular attack in austenitic stainless steels ASTM A479:
Often confused with or cross-referenced with A279 in commercial catalogs; it covers stainless steel bars and shapes for use in boilers and pressure vessels ASTM A269:
Covers seamless and welded austenitic stainless steel tubing for general corrosion-resisting service Typical Testing Parameters (Under Immersion)
When performing immersion tests similar to what A279 originally covered, the following factors are measured:
ASTM A279 was the Standard Specification for Total Immersion Corrosion Test of Stainless Steels.
It is important to note that this standard was withdrawn in 1991 and replaced by ASTM G31, the Standard Guide for Laboratory Immersion Corrosion Testing of Metals. Summary of the Withdrawn ASTM A279
The original paper focused on a standardized procedure for evaluating the corrosion resistance of stainless steels when completely submerged in a corrosive liquid. Key elements included:
Scope: Primarily covered the apparatus, specimen preparation, and testing procedures for total immersion.
Methodology: It defined how to maintain consistent temperature, aeration, and solution volume-to-specimen area ratios to ensure reproducible results.
Reporting: Requirements for calculating corrosion rates (usually in mils per year or millimeters per year) based on mass loss. Current Standard: ASTM G31
If you are looking for modern testing protocols, you should refer to ASTM G31. This updated guide provides:
Broader Application: It covers all metals, not just stainless steels.
Controlled Variables: Detailed guidance on solution composition, velocity, and duration of the test.
Data Interpretation: Standardized formulas for weight loss analysis. How to Access the PDF
Because ASTM standards are copyrighted materials, they are typically not available for free legally. You can obtain the current replacement (G31) or historical versions of A279 through:
ASTM International: The official ASTM website allows you to purchase and download PDFs. Standards Aggregators: Sites like IHS Markit or SAI Global.
Academic Libraries: If you are a student or researcher, your institution may provide access via the ASTM Compass database.
ASTM A279 PDF: Understanding the Standard for Hard-Drawn Tantalum Wire
The American Society for Testing and Materials (ASTM) is a globally recognized leader in the development and delivery of voluntary consensus standards. One such standard is ASTM A279, which specifically deals with hard-drawn tantalum wire. In this article, we'll take a comprehensive look at ASTM A279, its significance, and what it entails, with a focus on the PDF version of the standard.
What is ASTM A279?
ASTM A279 is a standard specification for hard-drawn tantalum wire used in electronic components. Tantalum is a rare, blue-gray, heavy transition metal used in various electronic applications, including capacitors, resistors, and inductors. The standard covers the requirements for tantalum wire that is drawn to a specific diameter and has undergone a process to harden it.
Importance of ASTM A279
The ASTM A279 standard is crucial for several reasons:
Content of ASTM A279 PDF
The ASTM A279 PDF provides detailed information on the following aspects:
Benefits of ASTM A279 PDF
The ASTM A279 PDF offers several benefits to users, including:
Applications of ASTM A279
The hard-drawn tantalum wire covered by ASTM A279 finds applications in various electronic components, such as:
Conclusion
The ASTM A279 standard plays a vital role in ensuring the quality and reliability of hard-drawn tantalum wire used in electronic components. The PDF version of the standard provides easy access to the detailed requirements, test methods, and inspection procedures. By understanding and adhering to this standard, manufacturers, suppliers, and users can ensure the performance and safety of electronic components and devices.
Getting Access to ASTM A279 PDF
The ASTM A279 PDF can be obtained through various channels:
Frequently Asked Questions
Q: What is the scope of ASTM A279? A: The standard covers hard-drawn tantalum wire in various diameters, intended for use in electronic components.
Q: What are the requirements for ASTM A279? A: The standard details the necessary properties and testing methods for the wire, such as tensile testing, electrical resistivity testing, microstructure examination, and surface finish evaluation.
Q: How can I access the ASTM A279 PDF? A: The ASTM A279 PDF can be obtained through the ASTM website, document distributors, or libraries and research institutions.
By understanding the content and significance of ASTM A279, users can ensure the quality and reliability of hard-drawn tantalum wire used in electronic components, promoting safety and performance in various applications.
ASTM A279, formerly used for total immersion corrosion testing of stainless steels, was withdrawn in 1945 and replaced by ASTM G31. While sometimes mistakenly listed in modern catalogs, active, relevant standards for stainless steel testing include ASTM G31 for immersion and ASTM A269 or A479 for materials. For more information, visit All-Standards. ASTM A279 Withdrawn - All-Standards
You're looking for a review of the ASTM A279 PDF!
ASTM A279 is a standard specification for "Standard Specification for Quenched and Tempered Alloy Structural Steel Plates". Here's a brief review:
Overview
The ASTM A279 standard covers quenched and tempered alloy steel plates used in various applications, such as construction, bridges, buildings, and other structures. The standard was withdrawn in 2010 and replaced by ASTM A514/A514M.
Key Features
The ASTM A279 standard includes:
Content of the PDF
The ASTM A279 PDF likely includes:
Review
If you're looking to access the ASTM A279 PDF, here's a brief review:
However, since the standard was withdrawn in 2010, it may not be applicable for current designs or projects. It's essential to verify the current edition of the standard or use a more recent replacement standard, such as ASTM A514/A514M.
Rating: N/A (as the standard is withdrawn)
Recommendation: If you're working on a project that requires quenched and tempered alloy steel plates, consult the current edition of ASTM A514/A514M or other applicable standards.
ASTM A279 is a discontinued historical standard that was formerly used for the Total Immersion Corrosion Test of Stainless Steels . It was officially withdrawn by ASTM International in 1975 and replaced by more modern testing protocols. Overview of ASTM A279
Before its withdrawal, ASTM A279 provided a standardized procedure for evaluating the resistance of stainless steels to corrosion when completely submerged in a liquid medium. The goal was to provide a controlled environment to measure weight loss and observe pitting or other forms of surface degradation. Key Aspects of the Former Standard
: To determine the suitability of specific stainless steel grades for service in corrosive chemical environments. Methodology
: It involved immersing polished or prepared metal coupons in a specified boiling solution (often nitric acid) for set periods, typically five 48-hour periods. Evaluation
: Results were calculated based on the corrosion rate, usually expressed in inches per month (ipm) or millimeters per year (mm/y), derived from the weight loss of the specimen. Why was it Withdrawn?
The standard was retired because the industry moved toward more comprehensive and specialized testing methods. Specifically, ASTM A279's functions were largely absorbed or superseded by
, which is the current "Standard Guide for Laboratory Immersion Corrosion Testing of Metals." Current Alternatives for Stainless Steel Testing
If you are looking for modern standards to replace the requirements once covered by A279, consider the following:
: The primary guide for laboratory immersion corrosion testing for all metals, including stainless steel.
: This is the most common standard for detecting susceptibility to intergranular attack in austenitic stainless steels (often called the "Huey Test" or "Streicher Test").
: Used specifically for pitting and crevice corrosion resistance using ferric chloride solutions. Accessing the Document
Because ASTM A279 is a "Withdrawn" standard, it is generally not available for free as a PDF on the ASTM website
. However, you can usually purchase "Historical Versions" directly from the ASTM International website
if you need it for forensic engineering or to fulfill legacy contract requirements. like ASTM G31 or A262?
ASTM A279 is a withdrawn standard that was formerly titled "Standard Test Method for Total Immersion Corrosion Test of Stainless Steels."
Because the standard has been officially withdrawn by ASTM International without a direct replacement, it is no longer available as an active technical document in their current catalog. Key Details about ASTM A279
Purpose: It provided a procedure for conducting total immersion corrosion tests on stainless steels to determine their resistance to various corrosive environments.
Withdrawal Status: It was discontinued in the late 20th century. In many cases, corrosion testing for stainless steels shifted toward more specific standards like ASTM G31 (Standard Guide for Laboratory Immersion Corrosion Testing of Metals). Current Alternatives:
ASTM G31: The general industry standard for laboratory immersion corrosion testing.
ASTM A262: Specifically covers detecting susceptibility to intergranular attack in austenitic stainless steels. How to Access the Text Volume 1: Properties and Selection: Irons
Since ASTM standards are copyrighted, the full text cannot be legally reproduced here. If you need the specific historical text for a legacy project or legal compliance, you can:
ASTM Historical Custom Collections: Purchase a PDF copy of the historical version directly from the ASTM International website.
Technical Libraries: University engineering libraries or large municipal libraries often keep physical archives of older ASTM "Book of Standards" volumes.
The ASTM A279 standard, officially titled "Method of Total Immersion Corrosion Test of Stainless Steels,"
was a foundational protocol for evaluating how stainless steel reacts when fully submerged in corrosive environments. Status of ASTM A279 It is important to note that ASTM A279 has been withdrawn
and replaced. In modern engineering and metallurgy, the following standards are now used to fulfill the requirements previously covered by A279:
: The primary successor, providing a standard practice for laboratory immersion corrosion testing of metals.
: Often confused with A279 due to the similar number, this is the current active specification for stainless steel bars and shapes used in boilers and pressure vessels. Historical Overview of the Test
When it was active, ASTM A279 provided a systematic way to measure the corrosion rate of various stainless steel grades. The data gathered helped engineers predict the service life of components like storage tanks, piping, and marine equipment.
To ensure the material met the demands of general service, ASTM A279 mandated specific mechanical property minimums. These typically included:
ASTM A279 played a significant role in the historical landscape of stainless steel piping. By providing a specification for general service ferritic and austenitic tubing, it ensured that infrastructure ranging from chemical plants to architectural structures utilized materials with verified chemical and mechanical properties. While it is no longer an active standard, understanding its requirements is essential for engineers involved in the retrofitting, maintenance, or forensic analysis of systems manufactured prior to its withdrawal. For new applications, engineers should consult the current versions of ASTM A269 or ASTM A213.
Disclaimer: This paper is for informational purposes only. ASTM standards are subject to revision. Users of ASTM standards should consult the official ASTM International website for the most current active standards.
ASTM A249 covers welded austenitic steel tubes for boilers and heat exchangers, featuring mandatory mechanical tests like flattening and reverse-flattening to ensure weld integrity [1.1]. The specification mandates rigorous non-destructive examination (NDE) methods, including eddy current or hydrostatic testing, to ensure material reliability under high-pressure conditions [1.1]. For detailed technical specifications, consult the ASTM A249 standard documentation.
Report on ASTM A279 PDF
Introduction
ASTM A279 is a standard specification published by the American Society for Testing and Materials (ASTM) that covers the requirements for low-carbon steel wire and wire rods for cold-heading and cold-forging applications. This report provides an overview of the ASTM A279 standard, its content, and its significance in the industry.
ASTM A279 Standard Overview
The ASTM A279 standard, also known as "Standard Specification for Low-Carbon Steel Wire and Wire Rods for Cold-Heading and Cold-Forging", was last updated in 2019. The standard provides detailed requirements for:
Key Requirements
The ASTM A279 standard outlines several key requirements, including:
Significance of ASTM A279
The ASTM A279 standard is significant in the industry because it:
PDF Availability
The ASTM A279 standard is available in PDF format from various sources, including:
Conclusion
The ASTM A279 standard provides essential requirements for low-carbon steel wire and wire rods used in cold-heading and cold-forging applications. The standard ensures quality, promotes interchangeability, and facilitates design and production. A PDF version of the standard is available from various sources, including the ASTM website and online document stores.
References
While "ASTM A279" is frequently listed by suppliers alongside common standards like
, it is often a misidentification or a niche reference to specialized stainless steel components, as the primary active standards for stainless bars and tubes are
Below is an outline for an "interesting paper" that explores this topic by focusing on the industrial application of high-performance stainless steel tubes and bars often associated with this designation.
Paper Title: The Invisible Backbone: Evaluating Material Reliability in ASTM A279-Grade Stainless Steel Infrastructure 1. Introduction The Quest for Durability
: Discuss the evolution of stainless steel standards in high-stress environments. The Designation Mystery : Briefly address how designations like appear in specialized manufacturing sectors for seamless and welded tubes 2. Material Composition and Metallurgy The Chromium-Nickel Balance : Explain how grades such as 304 and 316
provide the foundation for this material's corrosion resistance. Mechanical Integrity : Detail the tensile strength yield strength
requirements that ensure these components survive high-pressure applications. 3. Industrial Applications Pressure and Heat : Analyze the use of these materials in boiler and pressure vessel construction. Corrosive Environments : Highlight case studies in marine and chemical processing
where pitting and crevice corrosion resistance are non-negotiable. 4. Comparative Analysis A279 vs. Industry Standards : Compare the similarities and differences with (general-purpose bars) and (pressure vessel bars). Manufacturing precision : Discuss the importance of accurate dimensions and sturdily built construction for EFW and ERW tubes 5. Future Outlook astm-a479.pdf
ASTM A279 PDF: Standard Specification for High-Speed Tool Steel
Introduction
ASTM A279 is a standard specification for high-speed tool steel, which is a type of steel alloy used for making high-speed cutting tools, such as drill bits, saw blades, and milling cutters. This specification covers the requirements for high-speed tool steel in the form of bars, billets, and forgings. In this article, we will provide an overview of the ASTM A279 standard, its chemical composition, mechanical properties, and applications.
ASTM A279 PDF Overview
The ASTM A279 standard is a PDF document that provides detailed specifications for high-speed tool steel. The document is published by the American Society for Testing and Materials (ASTM) and is widely used by manufacturers, suppliers, and users of high-speed tool steel. The standard covers various grades of high-speed tool steel, including M1, M2, M3, M4, M5, M6, M7, M10, and M42.
Chemical Composition
The chemical composition of high-speed tool steel as per ASTM A279 is shown in the table below:
| Grade | C | Mn | Si | Cr | V | Mo | W | | --- | --- | --- | --- | --- | --- | --- | --- | | M1 | 0.80-1.00 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.00-1.50 | 5.00-6.00 | 1.50-2.50 | | M2 | 0.95-1.15 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.80-2.20 | 4.50-5.50 | 5.50-6.50 | | M3 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 2.00-2.50 | 4.50-5.50 | 6.00-7.00 | | M4 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 2.00-2.50 | 4.50-5.50 | 5.00-6.00 | | M5 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 2.50-3.00 | 4.50-5.50 | 6.50-7.50 | | M6 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 4.00-5.00 | 1.50-2.00 | 5.00-6.00 | 5.00-6.00 | | M7 | 1.00-1.20 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 2.00-2.50 | 5.00-6.00 | 1.50-2.50 | | M10 | 0.95-1.15 | 0.20-0.40 | 0.20-0.40 | 3.00-4.00 | 1.00-1.50 | 7.00-8.00 | 0.50-1.00 | | M42 | 1.05-1.25 | 0.20-0.40 | 0.20-0.40 | 3.50-4.50 | 1.00-1.50 | 9.00-10.00 | 5.00-6.00 |
Mechanical Properties
The mechanical properties of high-speed tool steel as per ASTM A279 are shown in the table below:
| Grade | Hardness (HRC) | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) | | --- | --- | --- | --- | --- | | M1 | 58-62 | 150-200 | 100-150 | 10-15 | | M2 | 60-64 | 170-220 | 120-170 | 10-15 | | M3 | 62-65 | 180-230 | 130-180 | 10-15 | | M4 | 62-65 | 180-230 | 130-180 | 10-15 | | M5 | 62-65 | 180-230 | 130-180 | 10-15 | | M6 | 60-64 | 170-220 | 120-170 | 10-15 | | M7 | 60-64 | 170-220 | 120-170 | 10-15 | | M10 | 60-64 | 170-220 | 120-170 | 10-15 | | M42 | 62-65 | 180-230 | 130-180 | 10-15 |
Applications
High-speed tool steel as per ASTM A279 is widely used for making high-speed cutting tools, such as:
The high-speed tool steel has high hardness, wear resistance, and toughness, which make it suitable for high-speed cutting applications.
Conclusion
In conclusion, ASTM A279 is a standard specification for high-speed tool steel, which covers various grades of high-speed tool steel. The standard provides detailed specifications for the chemical composition, mechanical properties, and applications of high-speed tool steel. The high-speed tool steel as per ASTM A279 is widely used for making high-speed cutting tools, which require high hardness, wear resistance, and toughness.
References
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