ASTM E350 - 18

    Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron

    Active Standard ASTM E350 | Developed by Subcommittee: E01.01

    Book of Standards Volume: 03.05


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    Significance and Use

    4.1 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, particularly those under the jurisdiction of ASTM Committees A01 on Steel, Stainless Steel, and Related Alloys and A04 on Iron Castings. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.

    1. Scope

    1.1 These test methods cover the chemical analysis of carbon steels, low-alloy steels, silicon electrical steels, ingot iron, and wrought iron having chemical compositions within the following limits:

    Element

     Composition Range, %

    Aluminum

    0.001  to 1.50

    Antimony

    0.002  to 0.03

    Arsenic

    0.0005 to 0.10

    Bismuth

    0.005  to 0.50

    Boron

    0.0005 to 0.02

    Calcium

    0.0005 to 0.01

    Cerium

    0.005  to 0.50

    Chromium

    0.005  to 3.99

    Cobalt

    0.01   to 0.30

    Columbium (Niobium)

    0.002  to 0.20

    Copper

    0.005  to 1.50

    Lanthanum

    0.001  to 0.30

    Lead

    0.001  to 0.50

    Manganese

    0.01   to 2.50

    Molybdenum

    0.002  to 1.50

    Nickel

    0.005  to 5.00

    Nitrogen

    0.0005 to 0.04

    Oxygen

    0.0001 to 0.03

    Phosphorus

    0.001  to 0.25

    Selenium

    0.001  to 0.50

    Silicon

    0.001  to 5.00

    Sulfur

    0.001  to 0.60

    Tin

    0.002  to 0.10

    Titanium

    0.002  to 0.60

    Tungsten

    0.005  to 0.10

    Vanadium

    0.005  to 0.50

    Zirconium

    0.005  to 0.15

    1.2 The test methods in this standard are contained in the sections indicated as follows:

     

    Sections

     

     

    Aluminum, Total, by the 8-Quinolinol Gravimetric
     Method (0.20 % to 1.5 %)

    124131

    Aluminum, Total, by the 8-Quinolinol
     Spectrophotometric Method
     (0.003 % to 0.20 %)

    7686

    Aluminum, Total or Acid-Soluble, by the Atomic
     Absorption Spectrometry Method
     (0.005 % to 0.20 %)

    308317

    Antimony by the Brilliant Green Spectrophotometric
     Method (0.0002 % to 0.030 %)

    142151

    Bismuth by the Atomic Absorption Spectrometry
     Method (0.02 % to 0.25 %)

    298307

    Boron by the Distillation-Curcumin
     Spectrophotometric Method
     (0.0003 % to 0.006 %)

    208219

    Calcium by the Direct-Current Plasma Atomic
     Emission Spectrometry Method
     (0.0005 % to 0.010 %)

    289297

    Carbon, Total, by the Combustion Gravimetric Method
     (0.05 % to 1.80 %)—Discontinued 1995

     

    Cerium and Lanthanum by the Direct Current Plasma
     Atomic Emission Spectrometry Method
     (0.003 % to 0.50 % Cerium, 0.001 % to 0.30 %
     Lanthanum)

    249257

    Chromium by the Atomic Absorption Spectrometry
     Method (0.006 % to 1.00 %)

    220229

    Chromium by the Peroxydisulfate Oxidation-Titration
     Method (0.05 % to 3.99 %)

    230238

    Cobalt by the Nitroso-R Salt Spectrophotometric
     Method (0.01 % to 0.30 %)

    5362

    Copper by the Sulfide Precipitation-Iodometric
     Titration Method (Discontinued 1989)

    8794

    Copper by the Atomic Absorption Spectrometry
     Method (0.004 % to 0.5 %)

    279288

    Copper by the Neocuproine Spectrophotometric
     Method (0.005 % to 1.50 %)

    114123

    Lead by the Ion-Exchange—Atomic Absorption
     Spectrometry Method
     (0.001 % to 0.50 %)

    132141

    Manganese by the Atomic Absorption Spectrometry
     Method (0.005 % to 2.0 %)

    269278

    Manganese by the Metaperiodate Spectrophotometric
     Method (0.01 % to 2.5 %)

    918

    Manganese by the Peroxydisulfate-Arsenite Titrimetric
     Method (0.10 % to 2.50 %)

    164171

    Molybdenum by the Thiocyanate Spectrophotometric
     Method (0.01 % to 1.50 %)

    152163

    Nickel by the Atomic Absorption Spectrometry
     Method (0.003 % to 0.5 %)

    318327

    Nickel by the Dimethylglyoxime Gravimetric
     Method (0.1 % to 5.00 %)

    180187

    Nickel by the Ion-Exchange-Atomic-Absorption
     Spectrometry Method
     (0.005 % to 1.00 %)

    188197

    Nitrogen by the Distillation-Spectrophotometric
     Method (Discontinued 1988)

    6375

    Phosphorus by the Alkalimetric Method
     (0.02 % to 0.25 %)

    172179

    Phosphorus by the Molybdenum Blue
     Spectrophotometric Method
     (0.003 % to 0.09 %)

    1930

    Silicon by the Molybdenum Blue Spectrophotometric
     Method (0.01 % to 0.06 %)

    103113

    Silicon by the Gravimetric Titration
     Method (0.05 % to 3.5 %)

    4652

    Sulfur by the Gravimetric Method
     (Discontinued 1988)

    3136

    Sulfur by the Combustion-Iodate Titration Method
     (0.005 % to 0.3 %) (Discontinued 2017)

    3745

    Tin by the Sulfide Precipitation-Iodometric Titration
     Method (0.01 % to 0.1 %)

    95102

    Tin by the Solvent Extraction-Atomic Absorption
     Spectrometry Method
     (0.002 % to 0.10 %)

    198207

    Titanium by the Diantipyrylmethane
     Spectrophotometric Method
     (0.025 % to 0.30 %)

    258268

    Vanadium by the Atomic Absorption Spectrometry
     Method (0.006 % to 0.15 %)

    239248

    1.3 Test methods for the determination of several elements not included in this standard can be found in Test Methods E1019.

    1.4 Some of the composition ranges given in 1.1 are too broad to be covered by a single test method and therefore this standard contains multiple test methods for some elements. The user must select the proper test method by matching the information given in the Scope and Interference sections of each test method with the composition of the alloy to be analyzed.

    1.5 The values stated in SI units are to be regarded as standard. In some cases, exceptions allowed in IEEE/ASTM SI 10 are also used.

    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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 6 and in special “Warning” paragraphs throughout these test methods.

    1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1193 Specification for Reagent Water

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

    E60 Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry

    E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

    E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals

    E351 Test Methods for Chemical Analysis of Cast Iron--All Types

    E352 Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Alloy Steels

    E353 Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys

    E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys

    E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory

    E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Fusion Techniques

    E1024 Guide for Chemical Analysis of Metals and Metal Bearing Ores by Flame Atomic Absorption Spectrophotometry

    E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method

    E1806 Practice for Sampling Steel and Iron for Determination of Chemical Composition

    ISO Standard

    ISO 5725 Precision of Test MethodsDetermination of Repeatability and Reproducibility for Inter-Laboratory Tests


    ICS Code

    ICS Number Code 77.040.30 (Chemical analysis of metals)

    UNSPSC Code

    UNSPSC Code 11101704(Steel)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/E0350-18

    Citation Format

    ASTM E350-18, Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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