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Rim <br /> California Steel Industries, Inc. <br /> Effective Date: August 3 1 , 2 0 1 8 <br /> HOT ROLLED CARBON AND HIGH STRENGTH — LOW ALLOY STEEL <br /> 3. COMPOSITION 1 INFORMATION ON INGREDIENTS <br /> Components Typical Weight CAS Number <br /> Base metal & Residuals Percentage <br /> Iron X97 7439-89-6 <br /> Manganese 0.10-1.65 7439-96-5 <br /> Silicon 0.04 max 7440-21-3 <br /> Carbon 0.30 max 7440-44-0 <br /> Copper 0.40max 7440-50-8 <br /> Nickel 0.40 max 7440-02-0 <br /> Chromium Alloy 0.20 max 7440-47-3 <br /> Aluminum 0.08 max 7429-90-5 <br /> Molybdenum 0.06 max 7439-98-7 <br /> Columbium 0.07 max 7440-03-1 <br /> Sulfur 0.025 max 7704-34-9 <br /> Phosphorus 0.025 max 7723-14-0 <br /> Nitrogen 0.012 max 7727-37-9 <br /> Vanadium 0.04 max 7440-62-2 <br /> Titanium 0.080 max 7440-32-6 <br /> Calcium 0.006 max 7440-70-2 <br /> Boron 0.005 max 7440-42-8 <br /> 4. FIRST AID MEASURES <br /> Eyes: If irritation or redness develops from dust exposure, move victim away from exposure and into fresh air. <br /> Flush eyes with clean water. If symptoms persist, seek medical attention. <br /> Skin: First aid is not normally required. However, it is good practice to wash any material from the skin. <br /> Inhalation: First aid is not normally required. If breathing difficulties develop, move victim away from source of <br /> exposure and into fresh air. Seek immediate medical attention <br /> Ingestion: First aid is not normally required; however, if dust is swallowed and symptoms develop, seek medical <br /> attention. <br /> Most important symptoms and effects <br /> Acute: Breathing or swallowing dusts or fumes from welding, grinding, sawing and burning may cause irritation <br /> of the nose, throat and digestive tract. <br /> Delayed: None known. <br /> Other Comments: Chronic exposure to manganese may result in a central nervous system disorder <br /> (manganism). Symptoms may include confusion, bizarre behavior, visual hallucinations, difficulty with speech <br /> and movement,tremor, loss of balance, decreased libido and impotence. <br /> Chronic exposure to high concentrations of iron have been associated with homosiderosis, hemochromatosis <br /> and in severe cases, liver cirrhosis, Typical occupational exposures to iron compounds are not expected to <br /> cause these effects. Chronic inhalation can produce"mottling"of the lungs (siderosis). This is considered a <br /> benign pneumoconiosis and does not normally lead to fibrosis or cause significant physiologic impairment. <br /> Page 2 of 9 <br />