ASTM E350 - 12
Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron
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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, % |
|---|---|
| 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 %) | 124–131 |
| Aluminum, Total, by the 8-Quinolinol Spectrophotometric Method (0.003 % to 0.20 %) | 76–86 |
| Aluminum, Total or Acid-Soluble, by the Atomic Absorption Spectrometry Method (0.005 % to 0.20 %) | 308–317 |
| Antimony by the Brilliant Green Spectrophotometric Method (0.0002 % to 0.030 %) | 142–151 |
| Bismuth by the Atomic Absorption Spectrometry Method (0.02 % to 0.25 %) | 298–307 |
| Boron by the Distillation-Curcumin Spectrophotometric Method (0.0003 % to 0.006 %) | 208–219 |
| Calcium by the Direct-Current Argon Plasma Atomic Emission Spectroscopy Method (0.0005 % to 0.010 %) | 289–297 |
| Carbon, Total, by the Combustion Gravimetric Method (0.05 % to1.80 %) | |
| Cerium and Lanthanum by the Direct Current Plasma Atomic Emission Spectrometry Method (0.003 % to 0.50 % Cerium, 0.001 % to 0.30 % Lanthanum) | 249–257 |
| Chromium by the Atomic Absorption Spectrometry Method (0.006 % to 1.00 %) | 220–229 |
| Chromium by the Peroxydisulfate Oxidation-Titration Method (0.05 % to 3.99 %) | 230–238 |
| Cobalt by the Nitroso-R Salt Spectrophotometric Method (0.01 % to 0.30 %) | 53–62 |
| Copper by the Atomic Absorption Spectrometry Method (0.004 % to 0.5 %) | 279–288 |
| Copper by the Neocuproine Spectrophotometric Method (0.005 % to 1.50 %) | 114–123 |
| Lead by the Ion-Exchange Method (0.001 % to 0.50 %) | 132–141 |
| Manganese by the Atomic Absorption Spectrometry Method (0.005 % to 2.0 %) | 269–278 |
| Manganese by the Metaperiodate Spectrophotometric Method (0.01 % to 2.5 %) | 9-18 |
| Manganese by the Peroxydisulfate-Arsenite Titrimetric Method(0.10 % to 2.50 %) | 164–171 |
| Molybdenum by the Thiocyanate Spectrophotometric Method (0.01 % to 1.50 %) | 152–163 |
| Nickel by the Atomic Absorption Spectrometry Method (0.003 % to 0.5 %) | 318–327 |
| Nickel by the Dimethylglyoxime Gravimetric Method (0.1 % to 5.00 %) | 180–187 |
| Nickel by the Ion-Exchange-Atomic-Absorption Spectrometry Method (0.005 % to 1.00 %) | 188–197 |
| Phosphorus by the Alkalimetric Method (0.02 % to 0.25 %) | 172–179 |
| Phosphorus by the Molybdenum Blue Spectrophotometric Method (0.003 % to 0.09 %) | 19-30 |
| Silicon by the Molybdenum Blue Spectrophotometric Method (0.01 % to 0.06 %) | 103–113 |
| Silicon by the Gravimetric Titration Method (0.05 % to 3.5 %) | 46–52 |
| Sulfur by the Combustion-Iodate Titration Method (0.005 % to 0.3 %) | 37–45 |
| Tin by the Sulfide-Iodometric Titration Method (0.01 % to 0.1 %) | 95–102 |
| Tin by the Solvent Extraction-Atomic Absorption Spectrometry Method (0.002 % to 0.10 %) | 198–207 |
| Titanium, Total, by the Diantipyrylmethane Spectrophotometric Method (0.025 % to 0.30 %) | 258–268 |
| Vanadium by the Atomic Absorption Spectrometry Method (0.006 % to 0.15 %) | 239–248 |
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
ISO Standard
ISO 5725 Precision of Test Methods--Determination of Repeatability and Reproducibility for Inter-Laboratory TestsICS Code
ICS Number Code 77.040.30 (Chemical analysis of metals)
UNSPSC Code
UNSPSC Code 11101704(Steel)
Referencing This Standard
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DOI: 10.1520/E0350-12
Citation Format
ASTM E350-12, 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, 2012, www.astm.org
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