ASTM E351-18

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.
Designation: E351 − 18
Standard Test Methods for
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Chemical Analysis of Cast Iron—All Types
This standard is issued under the fixed designation E351; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
Cerium and Lanthanum by the Direct Current Plasma Atomic
Emission Spectrometry Method (Ce: 0.003 % to 0.5 %; La: 0.001
1.1 These test methods cover the chemical analysis of pig
% to 0.30 %) 237–245
Chromium by the Atomic Absorption Method (0.006 % to 1.00 %) 208–217
iron, gray cast iron (including alloy and austenitic), white cast
Chromium by the Peroxydisulfate Oxidation—Titration Method (0.05
iron, malleable cast iron, and ductile (nodular) iron having
% to 30.0 %) 218–226
chemical compositions within the following limits:
Chromium by the Peroxydisulfate-Oxidation Titrimetric Method (0.05
%to30.0%)—Discontinued 1980 144–151
Element Composition Range, %
Cobalt by the Ion-Exchange—Potentiometric Titration Method (2.0 %
to 4.5 %) 53–60
Aluminum 0.003 to 0.50
Cobalt by the Nitroso-R-Salt Spectrophotometric Method (0.01 % to
Antimony 0.005 to 0.03
4.50 %) 61–70
Arsenic 0.02 to 0.10
Copper by the Neocuproine Spectrophotometric Method (0.03 % to
Bismuth 0.001 to 0.03
7.5 %) 116–125
Boron 0.001 to 0.10
Copper by the Sulfide Precipitation-Electrodeposition Gravimetric
Cadmium 0.001 to 0.005
Method (0.03 % to 7.5 %) 81–88
Carbon 1.25 to 4.50
Lead by the Ion-Exchange—Atomic Absorption Spectrometry
Cerium 0.005 to 0.05
Method (0.001 % to 0.15 %) 126–135
Chromium 0.01 to 30.00
Magnesium by the Atomic Absorption Spectrometry Method (0.002
Cobalt 0.01 to 4.50
% to 0.10 %) 71–80
Copper 0.03 to 7.50
Manganese by the Periodate Spectrophotometric Method (0.10 % to
Lead 0.001 to 0.15
2.00 %) 9–18
Magnesium 0.002 to 0.10
Manganese by the Peroxydisulfate-Arsenite Titrimetric Method (0.10
Manganese 0.06 to 2.50
% to 3.5 %) 152–159
Molybdenum 0.01 to 5.00
Molybdenum by the Ion Exchange–8-Hydroxyquinoline Gravimetric
Nickel 0.01 to 36.00
Method 257–264
Phosphorus 0.01 to 0.90
Molybdenum by the Thiocyanate Spectrophotometric Method (0.01
Selenium 0.001 to 0.06
% to 1.5 %) 196–207
Silicon 0.10 to 6.0
Nickel by the Dimethylglyoxime Gravimetric Method (0.1 % to 36.00
Sulfur 0.005 to 0.25
%) 168–175
Tellurium 0.001 to 0.35
Nickel by the Ion Exchange-Atomic Absorption Spectrometry Method
Tin 0.001 to 0.35
(0.005 % to 1.00 %) 176–185
Titanium 0.001 to 0.20
Phosphorus by the Alkalimetric Method (0.02 % to 0.90 %) 160–167
Tungsten 0.001 to 0.20
Phosphorus by the Molybdenum Blue Spectrophotometric Method
Vanadium 0.005 to 0.50
(0.02 % to 0.90 %) 19–30
Zinc 0.005 to 0.20
Silicon by the Gravimetric Method (0.1 % to 6.0 %) 46–52
1.2 The test methods in this standard are contained in the Sulfur by the Gravimetric Method—Discontinued 1988 30–36
Sulfur by the Combustion-Iodate Titration Method (0.005 % to
sections indicated below:
0.25 %)—Discontinued 2012 37–45
Sections Sulfur by the Chromatographic Gravimetric Method—Discontinued
1980 136–143
Carbon, Graphitic, by the Direct Combustion Infrared Absorption Tin by the Solvent Extraction-Atomic Absorption Spectrometry
Method (1 % to 3 %) 108–115 Method (0.002 % to 0.10 %) 186–195
Carbon, Total by the Combustion Gravimetric Method (1.25 % to Tin by the Sulfide Precipitation-Iodometric Titration Method (0.01 %
4.50 %)—Discontinued 2012 97–107 to 0.35 %) 89–96
Titanium by the Diantipyrylmethane Spectrophotometric Method
(0.006 % to 0.35 %) 246–256
Vanadium by the Atomic Absorption Spectrometry Method (0.006 %
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These test methods are under the jurisdiction of ASTM Committee E01 on
to 0.15 %) 227–236
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
responsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
1.3 Procedures for the determination of carbon and sulfur
Current edition approved July 1, 2018. Published September 2018. Originally
not included in these test methods can be found in Test
approved in 1968. Last previous edition approved in 2013 as E351–13. DOI:
Methods E1019.
10.1520/E0351-18.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E351 − 18
1.4 Some of the composition ranges given in 1.1 are too Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
broad to be covered by
...