ASTM E353-93 Chemical Analysis of Stainless, Heat Resisting, Maraging Steel and Other Similar Alloys
The standard test methods for the chemical analysis of stainless, heat resisting, maraging, and other similar chromium-nickel-iron alloys are covered under the ASTM E353-93 standard test. These test methods for the chemical analysis of metals and alloys are primarily intended as referee methods to test such materials for compliance with compositional specifications.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM E353-93 is a foundational standard for the chemical analysis of high-performance alloys. It offers “referee methods”—extremely precise, standardized techniques for confirming that a metal has the correct chemical composition.
It is important to remember that ASTM standards are reviewed every few years, even if the “93” denotes the standard’s initial major revision year (1993). The most recent version in use as of 2026 is ASTM E353-25.
Scope, Applications, and Benefits
Scope
ASTM E353-93 covers the procedures for the chemical analysis of stainless steels, heat-resisting steels, maraging steels, and related high-alloy materials. The method provides quantitative determination of major, minor, and trace alloying elements to verify chemical composition, ensure material conformity, and support quality control and metallurgical evaluation in accordance with specified standards.
Applications
- Chemical verification of stainless and heat-resistant steels
- Composition analysis of maraging steels for aerospace and defense use
- Incoming material inspection in steel plants and fabrication units
- Research and development of advanced alloy steels
- Failure analysis and forensic metallurgy investigations
Benefits
- Ensures accurate and reliable determination of alloying and impurity elements
- Supports material compliance with ASTM and other international specifications
- Enhances quality assurance in steel production and processing
- Enables process control during melting, refining, and alloying
- Reduces risk of material failure due to off-spec chemistry
Testing Process
Sample Preparation
Obtain a representative steel sample, then clean and prepare it to prevent surface contamination.
1Weighing
Accurately weigh the required quantity of the prepared sample as specified for the element to be analyzed.
2Calculation
Calculate element concentrations based on measured values and sample weight.
3Reporting
Report results as percentages or ppm, as specified in the standard.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Stainless steels, heat-resisting steels, maraging steels, and similar alloys |
| Elements Determined | Major, minor, and trace alloying elements (e.g., C, Mn, Si, Cr, Ni, Mo, Co, Al, Ti, Cu, etc.) |
| Sample Mass | As specified for each element and method |
| Analytical Range | Element-dependent; suitable for low to high alloy contents |
| Result Reporting | Percentage (%) or parts per million (ppm) |
Instrumentation Used
- Optical Emission Spectrometer (OES) or Spark Emission Spectrometer
- Sample preparation tools (grinder, polishers, and cleaning equipment)
- Calibration standards and reference materials
- Argon or inert gas supply (for OES)
- Data acquisition and analysis software
- Protective equipment (gloves, goggles, fume extraction)
Results and Deliverables
- Quantitative chemical composition of stainless, heat-resistant, and maraging steels obtained
- Individual alloying and impurity element contents reported in % or ppm
- Verification of material conformity with specified chemical requirements
- Identification of any off-spec or excess elements
- Data suitable for quality control, certification, and metallurgical evaluation
- Results support acceptance, rejection, or process adjustment decisions
Frequently Asked Questions
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