ASTM E 350:2023

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 %) ...

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