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ASTM E350-18

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

NORMA vydaná dňa 15.3.2018

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Informácie o norme:

Označenie normy: ASTM E350-18
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.3.2018
Kód tovaru: NS-848391
Počet strán: 64
Približná hmotnosť: 192 g (0.42 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Chemická analýza kovů

Anotácia textu normy ASTM E350-18 :

Keywords:
alkalimetric, aluminum, antimony, bismuth, boron, calcium, carbon steel, cerium, chromium, cobalt, copper, gravimetric, ingot iron, ion-exchange, lanthanum, lead, low-alloy steel, manganese, molybdenum, nickel, phosphorus, silicon, silicon electrical steel, spectrometry, spectrophotometric, sulfur, tin, titanium, titration, titrimetric, vanadium, wrought iron,, ICS Number Code 77.040.30 (Chemical analysis of metals)

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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 %)

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 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

Nitrogen by the Distillation-Spectrophotometric
Method (Discontinued 1988)

63–75

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 Gravimetric Method
(Discontinued 1988)

31–36

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

37–45

Tin by the Sulfide Precipitation-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 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 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. 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

E354-21e1	Standard Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys (Includes all amendments and changes 2/23/2022).
E882-10(2016)e1	Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory (Includes all amendments and changes 10/27/2017).
E1097-12(2017)	Standard Guide for Determination of Various Elements by Direct Current Plasma Atomic Emission Spectrometry
IEEE/ASTM SI 10	Standard for Use of the International System of Units (SI): The Modern Metric System
ISO 5725	Precision of Test Methods--Determination of Repeatability and Reproducibility for Inter-Laboratory Tests
E50-17	Standard Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E60-11(2022)e1	Standard Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry (Includes all amendments and changes 6/29/2022).
E353-19e1	Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys (Includes all amendments and changes 2/23/2022).
E1019-18	Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by Various Combustion and Inert Gas Fusion Techniques
E1024-97	Standard Guide for Chemical Analysis of Metals and Metal Bearing Ores by Flame Atomic Absorption Spectrophotometry
E1806-23	Standard Practice for Sampling Steel and Iron for Determination of Chemical Composition
D1193-06(2018)	Standard Specification for Reagent Water
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E135-23a	Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials (Includes all amendments and changes 7/17/2023).
E173-93	Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1997)
E319-85(1997)	Standard Practice for the Evaluation of Single-Pan Mechanical Balances
E351-18	Standard Test Methods for Chemical Analysis of Cast Iron´All Types
E352-23	Standard Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Alloy Steels

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