Norma Astm

Designation: A 751 – 01

Standard Test Methods, Practices, and Terminology for

Chemical Analysis of Steel Products1
This standard is issued under the fixed designation A 751; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.

INTRODUCTION

This standard was prepared to answer the need for a single document that would include all aspects
of obtaining and reporting the chemical analysis of steel, stainless steel, and related alloys. Such
subjectsas definitions of terms and product (check) analysis variations (tolerances) required
clarification. Requirements for sampling, meeting specified limits, and treatment of data usually were
not clearly established in product specifications.
It is intended that this standard will contain all requirements for the determination of chemical
composition of steel, stainless steel, or related alloys sothat product specifications will need contain
only special modifications and exceptions.
A 880 Practice for Criteria for Use in Evaluation of Testing
Laboratories and Organizations for the Examination and
Inspection of Steel, Stainless Steel, and Related Alloys2
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications3
E 30 Test Methods for ChemicalAnalysis of Steel, Cast
Iron, Open-Hearth Iron, and Wrought Iron4
E 50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and
Related Materials5
E 59 Practice for Sampling Steel and Iron for Determination
of Chemical Composition6
E 60 Practice for Analysis of Metals, Ores, and Related
Materials by Molecular Absorption Spectrometry5
E 212 TestMethod for Spectrographic Analysis of Carbon
and Low-Alloy Steel by the Rod-to-Rod Technique7
E 293 Test Method for Spectrographic Determination of
Acid-Soluble Aluminum in Low-Alloy Steel By the Solution Technique7
E 322 Method for X-Ray Emission Spectrometric Analysis
of Low-Alloy Steels and Cast Irons5
E 327 Test Method for Optical Emission Spectrometric
Analysis of Stainless Type 18-8Steels by the Point-toPlane Technique8

1. Scope
1.1 This standard covers definitions, reference methods,
practices, and guides relating to the chemical analysis of steel,
stainless steel, and related alloys. It includes both wet chemical
and instrumental techniques.
1.2 Directions are provided for handling chemical requirements, product analyses, residual elements, and reference
standards,and for the treatment and reporting of chemical
analysis data.
1.3 This standard applies only to those product standards
which include this standard or parts thereof as a requirement.
1.4 In cases of conflict, the product specification requirements shall take precedence over the requirements of this
standard.
1.5 Attention is directed to Practice A 880 when there may
be a need for informationon criteria for evaluation of testing
laboratories.
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:

2Annual Book of ASTM Standards, Vol 01.03.
Annual Book of ASTM Standards, Vol 14.02.
4
Discontinued. See 1994 Annual Book of ASTM Standards, Vol. 03.05.
5
Annual Book of ASTM Standards, Vol 03.05.
6
Discontinued and replaced by E 1806. See 1996 Annual Book of ASTM
Standards, Vol. 03.05.
7
Discontinued. See 1996 Annual Book of ASTM Standards, Vol. 03.06.
8
Discontinued. See 1998 Annual Book...