ASTM E350-23
(Test Method)Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron
Standard Test Methods for Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron
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.
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 Plasma Atomic
Emission Spectrometry Method
(0.0005 % to 0.010 %)
289–297
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)
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 Sulfide Precipitation-Iodometric
Titration Method (Discontinued 1989)
87–94
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—Atomic Absorption
Spectrometry 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 Dimethylglyoxim...
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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: E350 − 23
Standard Test Methods for
Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon
1
Electrical Steel, Ingot Iron, and Wrought Iron
This standard is issued under the fixed designation E350; 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. 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
Sections
1.1 These test methods cover the chemical analysis of
Aluminum, Total, by the 8-Quinolinol 76–86
carbon steels, low-alloy steels, silicon electrical steels, ingot Spectrophotometric Method
(0.003 % to 0.20 %)
iron, and wrought iron having chemical compositions within
Aluminum, Total or Acid-Soluble, by the Atomic 308–317
the following limits:
Absorption Spectrometry Method
(0.005 % to 0.20 %)
Element Composition Range, %
Antimony by the Brilliant Green Spectrophotometric 142–151
Aluminum 0.001 to 1.50
Method (0.0002 % to 0.030 %)
Antimony 0.002 to 0.03
Bismuth by the Atomic Absorption Spectrometry 298–307
Arsenic 0.0005 to 0.10
Method (0.02 % to 0.25 %)
Bismuth 0.005 to 0.50
Boron by the Distillation-Curcumin 208–219
Boron 0.0005 to 0.02
Spectrophotometric Method
Calcium 0.0005 to 0.01
(0.0003 % to 0.006 %)
Cerium 0.005 to 0.50
Calcium by the Direct-Current Plasma Atomic 289–297
Chromium 0.005 to 3.99
Emission Spectrometry Method
Cobalt 0.01 to 0.30
(0.0005 % to 0.010 %)
Columbium (Niobium) 0.002 to 0.20
Carbon, Total, by the Combustion Gravimetric Method
Copper 0.005 to 1.50
(0.05 % to 1.80 %)—Discontinued 1995
Lanthanum 0.001 to 0.30
Cerium and Lanthanum by the Direct Current Plasma 249–257
Lead 0.001 to 0.50
Atomic Emission Spectrometry Method
Manganese 0.01 to 2.50
(0.003 % to 0.50 % Cerium, 0.001 % to 0.30 %
Molybdenum 0.002 to 1.50
Lanthanum)
Nickel 0.005 to 5.00
Chromium by the Atomic Absorption Spectrometry 220–229
Nitrogen 0.0005 to 0.04
Method (0.006 % to 1.00 %)
Oxygen 0.0001 to 0.03
Chromium by the Peroxydisulfate Oxidation-Titration 230–238
Phosphorus 0.001 to 0.25
Method (0.05 % to 3.99 %)
Selenium 0.001 to 0.50
Cobalt by the Nitroso-R Salt Spectrophotometric 53–62
Silicon 0.001 to 5.00
Method (0.01 % to 0.30 %)
Sulfur 0.001 to 0.60
Copper by the Sulfide Precipitation-Iodometric 87–94
Tin 0.002 to 0.10
Titration Method (Discontinued 1989)
Titanium 0.002 to 0.60
Copper by the Atomic Absorption Spectrometry 279–288
Tungsten 0.005 to 0.10
Method (0.004 % to 0.5 %)
Vanadium 0.005 to 0.50
Copper by the Neocuproine Spectrophotometric 114–123
Zirconium 0.005 to 0.15
Method (0.005 % to 1.50 %)
1.2 The test methods in this standard are contained in the Lead by the Ion-Exchange—Atomic Absorption 132–141
Spectrometry Method
sections indicated as follows:
(0.001 % to 0.50 %)
Sections Manganese by the Atomic Absorption Spectrometry 269–278
Method (0.005 % to 2.0 %)
Aluminum, Total, by the 8-Quinolinol Gravimetric 124–131 Manganese by the Metaperiodate Spectrophotometric 9–18
Method (0.20 % to 1.5 %) Method (0.01 % to 2.5 %)
Manganese by the Peroxydisulfate-Arsenite Titrimetric 164–171
Method (0.10 % to 2.50 %)
Molybdenum by the Thiocyanate Spectrophotometric 152–163
1
These test methods are under the jurisdiction of ASTM Committee E01 on
Method (0.01 % to 1.50 %)
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
Nickel by the Atomic Absorption Spectrometry 318–327
responsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
Method (0.003 % to 0.5 %)
Current edition approved Nov. 15, 2023. Published December 2023. Originally
Nickel by the Dimethylglyoxime Gravimetric 180–187
approved in 1968. Last previous edition approved in 2018 as E350 – 18. DOI:
Method (0.1 % to 5.00 %)
10.1520/E0350-23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E350 − 23
E29 Practice for Using Significant Digits in Test Data to
Sections
Determine Conformance with Specifications
Nickel by the Ion-Exchange-Atomic-Absorption 188–197
E50 Practices for Apparatus, Reagents, and Safety Consid-
Spectrometry Method
(0.005 % to 1.00 %) erations for Chemical Analysis of Metals, Ores, and
Nitrogen by the Distillation-Spectrophotometric 63–75
Related Materials
Method (Discontinued 1988)
E60 Practice for Analysis of Metals, Ores, and Related
Phosphorus by the Alkalimetric Method 172–179
Materials by Spectrophotometry
(0.02 % to 0.25 %)
Phosphorus by the Mol
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E350 − 18 E350 − 23
Standard Test Methods for
Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon
1
Electrical Steel, Ingot Iron, and Wrought Iron
This standard is issued under the fixed designation E350; 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. 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
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 124–131
Method (0.20 % to 1.5 %)
1
These test methods are under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and are the direct responsibility
of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.
Current edition approved March 15, 2018Nov. 15, 2023. Published May 2018December 2023. Originally approved in 1968. Last previous edition approved in 20122018
as E350 – 12.E350 – 18. DOI: 10.1520/E0350-18.10.1520/E0350-23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E350 − 23
Sections
Aluminum, Total, by the 8-Quinolinol 76–86
Spectrophotometric Method
(0.003 % to 0.20 %)
Aluminum, Total or Acid-Soluble, by the Atomic 308–317
Absorption Spectrometry Method
(0.005 % to 0.20 %)
Antimony by the Brilliant Green Spectrophotometric 142–151
Method (0.0002 % to 0.030 %)
Bismuth by the Atomic Absorption Spectrometry 298–307
Method (0.02 % to 0.25 %)
Boron by the Distillation-Curcumin 208–219
Spectrophotometric Method
(0.0003 % to 0.006 %)
Calcium by the Direct-Current Plasma Atomic 289–297
Emission Spectrometry Method
(0.0005 % to 0.010 %)
Carbon, Total, by the Combustion Gravimetric Method
(0.05 % to 1.80 %)—Discontinued 1995
Cerium and Lanthanum by the Direct Current Plasma 249–257
Atomic Emission Spectrometry Method
(0.003 % to 0.50 % Cerium, 0.001 % to 0.30 %
Lanthanum)
Chromium by the Atomic Absorption Spectrometry 220–229
Method (0.006 % to 1.00 %)
Chromium by the Peroxydisulfate Oxidation-Titration 230–238
Method (0.05 % to 3.99 %)
Cobalt by the Nitroso-R Salt Spectrophotometric 53–62
Method (0.01 % to 0.30 %)
Copper by the Sulfide Precipitation-Iodometric 87–94
Titration Method (Discontinued 1989)
Copper by the Atomic Absorption Spectrometry 279–288
Method (0.004 % to 0.5 %)
Copper by the Neocuproine Spectrophotometric 114–123
Method (0.005 % to 1.50 %)
Lead by the Ion-Exchange—Atomic Absorption 132–141
Spectrometry Method
(0.001 % to 0.50 %)
Manganese by the Atomic Absorption Spectrometry 269–278
Method (0.005 % to 2.0 %)
Manganese by the Metaperiodate Spectrophotometric 9–18
Method (0.01 % to 2.5 %)
Manganese by the Peroxydisulfate-Arsenite Titrimetric 164–171
Method (0.10 % to 2.50 %)
Molybdenum by the Thiocyanate Spectrophotometric 152–163
Method (0.01 % to 1.50 %)
Nickel by the Atomic Absorption Spectrometry 318–327
Method (0.003 % to 0.5 %)
Nickel by the Dimethylglyoxime Gravimetric 180–187
Method (0.1 % to 5.00 %)
Nickel by the Ion-Exchange-Atomic-Absorption 188–197
Spectrometry Method
(0.005 % to 1.00 %)
Nitrogen by the Distillation-Spectrophotometric 63–75
Method (Discontinued 1988)
Phosphorus by the Alkalimetric Method 172–179
(0.02 % to 0.25 %)
Phosphorus by the Molybdenum Blue 19–30
Spectrophotometric Method
(0.003 % to 0.09 %)
Silicon by the Molybdenum Blue Spectrophotometric 103–113
Method (0.01
...
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