ASTM E350 - 12

    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

    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, %
    Aluminum0.001 to 1.50
    Antimony0.002 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
    Chromium0.005 to 3.99
    Cobalt 0.01 to 0.30
    Columbium (Niobium)0.002 to 0.20
    Copper 0.005 to 1.50
    Lanthanum0.001 to 0.30
    Lead 0.001 to 0.50
    Manganese0.01 to 2.50
    Molybdenum0.002 to 1.50
    Nickel 0.005 to 5.00
    Nitrogen0.0005 to 0.04
    Oxygen 0.0001 to 0.03
    Phosphorus0.001 to 0.25
    Selenium0.001 to 0.50
    Silicon 0.001 to 5.00
    Sulfur 0.001 to 0.60
    Tin 0.002 to 0.10
    Titanium0.002 to 0.60
    Tungsten0.005 to 0.10
    Vanadium0.005 to 0.50
    Zirconium0.005 to 0.15

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

    Aluminum, Total, by the 8-Quinolinol Gravimetric Method
    (0.20 % to 1.5 %)
    Aluminum, Total, by the 8-Quinolinol Spectrophotometric
    Method (0.003 % to 0.20 %)
    Aluminum, Total or Acid-Soluble, by the Atomic Absorption
    Spectrometry Method (0.005 % to 0.20 %)
    Antimony by the Brilliant Green Spectrophotometric
    Method (0.0002 % to 0.030 %)
    Bismuth by the Atomic Absorption Spectrometry
    Method (0.02 % to 0.25 %)
    Boron by the Distillation-Curcumin Spectrophotometric
    Method (0.0003 % to 0.006 %)
    Calcium by the Direct-Current Argon Plasma Atomic
    Emission Spectroscopy Method (0.0005 % to 0.010 %)
    Carbon, Total, by the Combustion Gravimetric Method
    (0.05 % to1.80 %)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)
    Chromium by the Atomic Absorption Spectrometry
    Method (0.006 % to 1.00 %)
    Chromium by the Peroxydisulfate Oxidation-Titration
    Method (0.05 % to 3.99 %)
    Cobalt by the Nitroso-R Salt Spectrophotometric
    Method (0.01 % to 0.30 %)
    Copper by the Atomic Absorption Spectrometry
    Method (0.004 % to 0.5 %)
    Copper by the Neocuproine Spectrophotometric
    Method (0.005 % to 1.50 %)
    Lead by the Ion-ExchangeAtomic Absorption Spectrometry
    Method (0.001 % to 0.50 %)
    Manganese by the Atomic Absorption Spectrometry
    Method (0.005 % to 2.0 %)
    Manganese by the Metaperiodate Spectrophotometric
    Method (0.01 % to 2.5 %)
    Manganese by the Peroxydisulfate-Arsenite Titrimetric
    Method(0.10 % to 2.50 %)
    Molybdenum by the Thiocyanate Spectrophotometric
    Method (0.01 % to 1.50 %)
    Nickel by the Atomic Absorption Spectrometry
    Method (0.003 % to 0.5 %)
    Nickel by the Dimethylglyoxime Gravimetric
    Method (0.1 % to 5.00 %)
    Nickel by the Ion-Exchange-Atomic-Absorption Spectrometry
    Method (0.005 % to 1.00 %)
    Phosphorus by the Alkalimetric Method
    (0.02 % to 0.25 %)
    Phosphorus by the Molybdenum Blue Spectrophotometric
    Method (0.003 % to 0.09 %)
    Silicon by the Molybdenum Blue Spectrophotometric
    Method (0.01 % to 0.06 %)
    Silicon by the Gravimetric Titration
    Method (0.05 % to 3.5 %)
    Sulfur by the Combustion-Iodate Titration Method
    (0.005 % to 0.3 %)
    Tin by the Sulfide-Iodometric Titration
    Method (0.01 % to 0.1 %)
    Tin by the Solvent Extraction-Atomic Absorption Spectrometry Method
    (0.002 % to 0.10 %)
    Titanium, Total, by the Diantipyrylmethane Spectrophotometric
    Method (0.025 % to 0.30 %)
    Vanadium by the Atomic Absorption Spectrometry
    Method (0.006 % to 0.15 %)

    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 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 and health 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.

    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

    E319 Practice for the Evaluation of Single-Pan Mechanical Balances

    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

    E1097 Guide for Determination of Various Elements by Direct Current Plasma Atomic Emission Spectrometry

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

    IEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System

    ISO Standard

    ISO 5725 Precision of Test Methods--Determination 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)

    DOI: 10.1520/E0350-12

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