Carbon and Alloy Steels

Hazard statements (CLP)

H317, H347, H351, H360

Code

Statements

H317

May cause an allergic skin reaction

SECTION 2: Hazards identification

HMIS Classification Classification of the Substance or Mixture GHS-US/CA Classification Skin Sens, 1 H317 pore. 2 H351 wv. 4B H360 Full text of hazard classes and H-statements see Section 16,

2.2 Label elements

GHS-US/CA Labeling

Signal word

Danger

Hazard statements

H347 - May cause an allergic skin reaction. H351 - Suspected of causing cancer. H360 - May damage fertility or the unborn child. EU Very Toxic to aquatic life with long lasting effects processing operations should also be recycled, or classified by a competent environmental professional and disposed of in accordance with applicable federal, state or local regulations Container Cleaning and Disposal: Follow applicable federal, state and local regulations, Observe safe handling precautions. European Waste Catalogue (EWC): 16-01-17 (ferrous metals), 12-01-99 (wastes not otherwise specified), 16-03 (off specification batches and unused products), or 15-01-04 (metallic packaging). Please note this information is for Galvanized (Hot Dipped) Sheet — High Strength Steel in its original form. Any alterations can void this information. 14 (a-g) Transportation Information: US Department of Transportation (DOT) under 49 CFR 172.101 does not regulate Galvanized (Hot Dipped) Sheet — High Strength Steel as a hazardous material. All federal, state, and local laws and regulations that apply to the transport of this type of material must be adhered to. Shipping Name: Not Applicable (NA) Packaging Authorizations Quantity Limitations Shipping Symbols; NA a) Exceptions: NA a) Passenger, Aircraft, or Railear: NA dAazard Class: NA b) Group: NA b) Cargo Aireraft Only: NA UN No.: NA ce) Authorization: NA. Vessel Stowage Requirements Packing Group: NA a) Vessel Stowage: NA DOT/ IMO Label: NA b) Other: NA

Precautionary statements

P2014 - Obtain special instructions before use. P202 - Do not handle until all safety precautions have been read and understood. P261 - Avoid breathing fume, dust. P272 - Contaminated work clothing should not be allowed out of the workplace. P280 - Wear protective gloves, protective clothing, and eye protection. P302+P352 - IF ON SKIN: Wash with plenty of water. P308+P313 - If exposed or concerned: Get medical advice/attention. P321 - Specific treatment (see Section 4 on this SDS). P333+P313 - If skin irritation or rash occurs: Get medical advice/attention. P362+P364 - Take off contaminated clothing and wash It before reuse. P405 - Store locked up. P501 - Dispose of contents/container in accordance with local, regional, national, territorial, provincial, and international regulations. 08/28/2018 EN (English US) 4/21

Contains

0.4 mg/m? (yellow) 0.1 mg/m? (yellow) 0.02 ppm (yellow) 0.1 mg/m? (yellow) 10/21 Safety Data Sheet ding To Federal Register

Appearance/Odor

Gray; Metallic Odorless Odor Threshold + Not available pH Not available Evaporation Rate Not available Melting Point + 1538 °C (2800.4 °F) Freezing Point Not available Boiling Point Not available Flash Point Not available Auto-ignition Temperature Not available Decomposition Temperature Not available Flammability (solid, gas) Not available Lower Flammable Limit Not available Upper Flammable Limit Not available ; Vapor Pressure Not available U Relative Vapor Density at 20°C Not available Relative Density Not available Specific Gravity 7.6-7.8 Solubility Water: Insoluble Partition Coefficient: N-Octanol/Water Not available Viscosity Not available VOC content 0% SECTION 10: STABILITY AND REACTIVITY. 10.1. Reactivity: Hazardous reactions will not occur under normal conditions. 10.2, Chemical Stability: Stable under recommended handling and storage conditions (see Section 7). 10.3. Possibility of Hazardous Reactions: Hazardous polymerization will not occur. 10.4, Conditions to Avoid: Dust, chips, or ribbons can be ignited more easily, by an ignition source, by improper machining, or by spontaneous combustion if finely divided and damp. 10.5. incompatible Materials: Oxidizers. Acids. Bases. Mineral acids. Corrosive substances in contact with metals may produce flammable hydrogen gas. 10.6. Hazardous Decomposition Products: None expected under normal conditions of use.

TOXICOLOGICAL INFORMATION

11.1. Information on Toxicological Effects - Product Acute Toxicity (Oral) Oral Not classified Acute Toxicity (Dermal): Not classified Acute Toxicity (Inhalation): Not classified LD50 and LC50 Data: Not available Skin Corrosion/irritation: Not classified Eye Damage/Irritation: Not classified 08/28/2018 EN (English US) 12/21

ECOLOGICAL INFORMATION

12.1. Toxicity Ecology - General: This product contains components that are environmentally hazardous and small chips and dust from processing may be toxic to aquatic life. Nickel {7440-02-0) LC50 Fish 1 100 mg/I (Exposure time 96 h - Species Brachydanio rerio) ECS50 Daphnia 1 100 mg/! (Exposure time 48 h - Species Daphnia magna) 08/28/2018 EN (English US) 14/21 Safety Data Sheet rding To Federal Register

Further information

Avoid unnecessary release into the environment SECTION 13: DISPOSAL CONSIDERATIONS 13.1. Waste treatment methods Waste Disposal Recommendations: Dispose of waste material in accordance with all local, regional, national, provincial, territorial and international regulations.

Additional information

Recycle where possible and/or dispose of spent material such as metals and metal-bearing waste and submerged arc welding (SAW) flux/slag appropriately. SECTION 14: TRANSPORT INFORMATION i ' The shipping description(s) stated herein were prepared in accordance with certain assumptions at the time the SDS was authored, and can vary based on a number of variables that may or may not have been known at the time the SDS was issued. 14.1. In Accordance with DOT Not regulated for transport 14.2. In Accordance with IMDG Not regulated for transport 14.3. In Accordance with IATA Not regulated for transport 14.4. In Accordance with TDG Not regulated for transport SECTION 15: REGULATORY INFORMATION 15.1. US Federal Regulations Carbon and Alloy Steels Hazardous Material Identification System (HMIS) Classification National Fire Protection Association (NFPA) Q Hazardous Material Identification System (IMIS) Classification National Fire Protection Association (NFPA) Hazardous Material Identification System (HIMIS) Classification National Fire Protection Association (NFPA)

Environmental hazards

List U.S. - Pennsylvania - RTK (Right to Know) - Special Hazardous Substances U.S. - Pennsylvania - RTK (Right to Know} List | Zinc (7440-66-6) 08/28/2018 EN (English US) 17/24 List U.S. - Pennsylvania - RTK (Right to Know) List Nickel {7440-02-0) U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S. - Pennsylvania - RTK (Right to Know) List U.S. - Pennsylvania - RTK (Right to Know) - Special Hazardous Substances U.S, - Pennsylvania - RTK {Right to Know) List Molybdenum (7439-98-7) U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) List Silicon (7440-21-3) U.S. - Massachusetts - Right To Know List U.S, - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) List Manganese (7439-96-5) U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) - Environmental Hazard List U.S, - Pennsylvania - RTK {Right to Know) List Copper (7440-50-8) U.S, - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S. - Pennsylvania - RTK {Right to Know) List U.S. - Pennsylvania - RTK (Right to Know) List Aluminum (7429-90-5} U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) List U.S, ~ Pennsylvania - RTK (Right to Know) List Sulfur (7704-34-9) U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S. - Pennsylvania - RTK (Right to Know) List Titanium (7440-32-6) U,S. - New Jersey ~ Right to Know Hazardous Substance List Vanadium (7440-62-2} U.S. - Massachusetts - Right To Know List U.S, - New Jersey - Right to Know Hazardous Substance List U.S. - Pennsylvania - RTK {Right to Know) List U.S. ~ Pennsylvania - RTK (Right to Know) List Tungsten (7440-33-7) U.S. - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S. ~ Pennsylvania - RTK (Right to Know) List Antimony (7440-36-0) U.S, - Massachusetts - Right To Know List U.S. - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) List 08/28/2018 EN (English US} 18/21 Safety Data Sheet rding To Federal Register / Vol. 77, No, 58 List U.S. - Pennsylvania - RTK (Right to Know) List Magnesium (7439-95-4) US, - Massachusetts - Right To Know List U.S. - New Jersey ~ Right to Know Hazardous Substance List 1. - Pennsylvania - RTK {Right to Know) List Selenium (7782-49-2) U.S. - Massachusetts - Right To Know List U.S, - New Jersey - Right to Know Hazardous Substance List U.S. - Pennsylvania - RTK (Right to Know) List U.S. - Pennsylvania - RTK (Right to Know) List Tellurium (13494-80-9) U.S. - Massachusetts - Right To Know List U.S, - New Jersey - Right to Know Hazardous Substance List U.S, - Pennsylvania - RTK (Right to Know) List U.S. - Pennsylvania - RTK (Right to Know) List 15.3. Canadian Regulations [ron (7439-89-6) Listed on the Canadian DSL (Domestic Substances List) Chromium (7440-47-3) Listed on the Canadian DSL (Domestic Substances List) Zinc (7440-66-6} Listed on the Canadian DSL (Domestic Substances List) Nickel (7440-02-0) Listed on the Canadian DSL (Domestic Substances List) Carbon (7440-44-0) Listed on the Canadian DSL (Domestic Substances List) | olybdenum (7439-98-7) ced on the Canadian DSL (Domestic Substances List) Silicon (7440-21-3) Listed on the Canadian DSL (Domestic Substances List) 08/28/2018 EN (English US) 19/21

Health hazards

HEALT! , Denotes possible chronic hazard if airborne dusts or fumes are generated » Exposure could cause irritation but only minor residual injury even if no Irritation or minor reversible injury possible. treatment is given. FIRE= 0, Materials that will not burn. FIRE = 0, Materials that will not bum, PHYSICAL HAZARD= 0, Materials that are normally stable, even under fire conditions, and INSTABILITY = 0, Normally stable, even under fire exposure conditions, and are not will not react with water, polymerize, decompose, condense, or seif-react. Non-explosives. reactive with water. ABBREVIATIONS/ACRONYMS: ACGIH | American Conference of Governmental Industrial Hygienists NIF No Information Found BEIs Biological Exposure Indices NIOSH | National Institute for Occupational Safety and Health CAS Chemical Abstracts Service NTP | National Toxicology Program 4 HEALTH 1, Denotes possible chronic hazard if airborne dusts or fumes are generated HEALTH = 1, Exposure could cause irritation but only minor residual injury even if no Iritation or minor reversible injury possible. treatment is given. FIRE= 0, Materials that will not bum. FIRE = 0, Materials that will not burn. PHYSICAL HAZARD= 6, Materials that are normally stable, even under fire conditions, and INSTABILITY = 0, Normally stable, even under fire exposure conditions, and are not _dvill not react with water, polymerize, decompose, condense, or self-react. Non-explosives. reactive with water, ABBREVIATIONS/ACRONYMS: ACGIH | American Conference of Governmental Industrial Hygienists NIF No Information Found BEIs Biological Exposure Indices NIOSH | National Institute for Occupational Safety and Health CAS Chemical Abstracts Service NTP National Toxicology Program

Physical hazards

0 Hazardous Material Identification System (HMIS) Classification National Fire Protection Association (NFPA) HEALTH= 1, Denotes possible chronic hazard if airborne dusts or furies are generated HEALTH = 1, Exposure could cause irritation but only minor residual injury even ifno Irritation or minor reversible injury possible. treatment is given. FIRE= 0, Materials that will not bum. FIRE = 0, Materials that will not bum. PHYSICAL HAZARD= 0, Materials that are normally stable, even under fire conditions, and INSTABILITY = 0, Normally stable, even under fire exposure conditions, and are net will not react with water, polymerize, decompose, condense, or self-react. Non-explosives. reactive with water, ABBREVIATIONS/ACRONYMS: ACGIH | American Conference of Governmental Industrial Hygienists NiF No Information Found BEIs Biological Exposure Indices NIOSH | National Institute for Occupational Safety and Health CAS Chemical Abstracts Service NTP National Toxicology Program

2.3 Other hazards

None Known 2(d) Unknown Acute Toxicity Statement (mixtar one Known 3(a-c) Chemical Name, Common Name (synonyms), CAS Number and Other Identifiers, and Concentration: Chemical Name CAS Number EC Number % weight Iron 7439-89-6 231-096-4 >90 Aluminum 7429-90-5 231-072-3 2.0 Chromium 7440-47-3 _ 231-157-5 SES Manganese 7439-96-5 _ 231-105-1 3.0 Molybdenum 7439-98-7 231-107-2 <LS Nickel 7440-02-0 231-1114 06 Silicon 7440-21-3 231-130-8 <2.0 Metallic Coating Aluminum 7429-90-5 231-072-3 <0,055 Tron — 7439-89-6 231-096-4 <0.8 Zine _ 7440-66-6 231-175-3 0.15 —9.1 EC- European Community CAS- Chemical Abstract Service Note: Depending on customer specifications, product surface may be treated with trace amounts (<0,01%) of corrosion-inhibiting or rust preventative that contains hexavalent chromium as applicd. 4(a) Description of Necessary Measures: If exposed, concerned or feel unwell: Get medical advice/attention. ¢ Inhalation: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not a likely form of exposure. However, during further processing (welding, grinding, burning, etc.). If inhaled: Remove person to fresh air and keep comfortable for breathing. If exposed,, concerned or feel unwell: Get medical advice/attention. ¢ Eye Contact: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not a likely form of exposure. However, during further processing (welding, grinding, burning, etc.). If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue Rinsing. If eye irritation persists Get medical advice/attention. If exposed, concerned or feel unwell Get medical advice/attention. ¢ Skin Contact: If on skin: Wash thoroughly after handling. Wash with plenty of water. If irritation or rash occurs: Get medical advice/attention. Take off and wash contaminated clothing before reuse. « Ingestion: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not a likely form of exposure. However, during further processing (welding, grinding, burning, etc.). If swallowed: Call a poison center/doctor if you feel unwell. Rinse mouth. If exposed, concerned or feel unwell: Get medical advice/attention. 4(b) Most Important Symptoms/Effects, Acute and Delayed (chronic): ¢ Inhalation: Galvanized (Hot Dipped) Sheet — High Strength Steel as soid/shipped is not likely to present an acute or chronic health effect. « Eye: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not likely to present an acute or chronic health effect. « Skin: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not likely to present an acute or chronic health effect. « Ingestion: Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped is not likely to present an acute or chronic health effect. A(c) Lmmediate Medical Attention and Special Treatment: None Known Measures S(a) Suitable (and unsuitable) Extinguishing Media: Not applicable for Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped. Use extinguishers appropriate for surrounding materials, 5(b) Specific Hazards Arising from the Chemical: Not applicable for Galvanized (Hot Dipped) Sheet - High Strength Steel as sold/shipped. When burmed, toxic smoke and vapor may be emitted. S(c) Special Protective Equipment and Precautions for Fire-fighters: Self-contained NIOSH approved respiratory protection and full protective clothing should be worn when fumes and/or smoke from fire are present. Heat and flames cause emittance of acrid smoke and fumes. Do not release runoff from fire control methods to sewers or waterways. Firefighters should wear full face-piece self-contained breathing apparatus and chemical protective clothing with thermal protection. Direct water stream will scatter and spread flames and, therefore, should not be used. ccidental Release Measures 6(a) Personal Precautions, Protective Equipment and Emergency Procedures: Not applicable for Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped. For spills involving finely divided particles, clean-up personnel should be protected against contact with eyes and skin. Page 2 of 9 Galvanized (Hot Dipped) Sheet — High Strength Steel USS IHS No.: 18138 ed) 5(b) Methods and Materials for Containment and Clean Up: Not applicable for Galvanized (Hot Dipped) Sheet — High Strength Steel as sold/shipped. If material is in a dry state, avoid inhalation of dust. Fine, dry material should be removed by vacuuming or wet sweeping methods to prevent spreading of dust. Avoid using compressed air. Do not release into sewers or waterways, Collect material in appropriate, labeled containers for recovery or disposal

2.1 Classification of the substance or mixture

GHS-US/CA Classification Skin Sens, 1 H317 pore. 2 H351 wv. 4B H360 Full text of hazard classes and H-statements : see Section 16,

Hazard pictograms

Word Acute Toxicity Hazard (covers NA* 4 q Warning Categories 1-5) Harmful if swallowed. “NS Eye Damage/ Irritation (covers * a No In wnt Categories 1, 2A and 2B) tm ieritaty NA 2B Warning Causes eye irritation. Categey Sensitization (covers NA* Ve Warning May cause an allergic skin reaction. eae (covers Categories 1A, NAt 2 cS Warning Suspected of causing cancer. oN Toxic to Reproduction (covers NA‘ op J Warni Categories 1A, 1B and 2) si ted of d ing fertility or the unb hild 4 , ‘arning uspected of damaging fertility or the unbom child. Specific Target Organ Toxicity ; (STOT) Following Single Exposure NA* 3 Warning May cause respiratory irritation. (covers Categories 1-3) STOT following Repeated Exposure NA* B Danger Causes damage to lungs through prolonged or repeated inhalation (covers Categories 1 and 2) ang exposure, * Not Applicable Toxicological data listed below are presented regardless to classification criteria. Individual hazard classification categories where the toxicological information has met or exceeded a classification criteria threshold are listed above. a. No LCso or LDso has been established for Galvanized (Hot Dipped) Sheet —- High Strength Steel. The following data has been determined for the components: * Tron: Rat LDso =98.6 g/kg (REACH) ¢ Aluminum: Rat LDso > 15.9 g/kg (REACH) Rat LDso =1060 mg/kg (IUCLID) * Nickel: LDso >9000 mg/kg (Oral/Rat); NOAEC > 10.2 mg/I(Inhalation/Rat) Rat LDso =984 mg/kg JUCLID) ¢ Silicon: LDso = 3160 mg/kg (Oral/Rat) Rabbit LDso =890 mg/kg (IUCLID) « Manganese: Rat LDso > 2000 mg/kg (REACH) Guinea Pig LDs0 =20 g/kg (TOXNET) Rat LDso > 9000 mg/kg (NLM Toxnet) Human LDio =77 g/kg (IUCLID) * Zine: Rat LDso > 2000 mg/kg b. No Skin (Dermal) Irritation data available for Galvanized (Hot Dipped) Sheet — High Strength Stecl as a mixture. The following Skin (Dermal) Irritation information was found for the components: ¢ Molybdenum: May cause skin irritation. c. No Eye Irritation data available for Galvanized (Hot Dipped) Sheet - High Strength Steel as a mixture. The following Eye Irritation information was found for the components: * Iron and Molybdenum: Causes eye irritation. * Silicon: Slight eye irritation in rabbit protocol. ¢ Nickel: Slight eye irritation from particulate abrasion only. d, No Skin (Dermal) Sensitization data available for Galvanized (Hot Dipped) Sheet — High Strength Steel as a mixture. The following Skin (Dermal) Sensitization information was found for the components: « Nickel: May cause allergic skin sensitization. e. No Respiratory Sensitization data available for Galvanized (Hot Dipped) Sheet — High Strength Steel as a mixture or its components. f. No Germ Cell Mutagenicity data available for Galvanized (Het Dipped) Sheet ~ High Strength Steel as a mixture. The following Mutagenicity and Genotoxicity information was found for the components: * Iron: IUCLID has found some positive and negative findings in vitro. « Aluminum: IUCLID; ATSDR have found this ingredient is not mutagenic in vitro; but has marginal effects in vivo. * Nickel: EU RAR has found positive results in vitro and in vivo but insufficient data for classification. &

Hazard categories

Category 1

Special Provisions

172.102) NA DOT Reportable Quantities: NA Page 7 of 9 Galvanized (Hot Dipped) Sheet — High Strength Steel USS THS No,: 18138 Rev. 8/18 International Maritime Dangerous Goods (IMDG) and the Regulations Concerning the International Carriage of Dangerous Goods by, Rail (RID) classification, packaging and shipping requirements follow the US DOT Hazardous Materials Regulation. Regulations Concerning the International Carriage of Dangerous Goods by Road (ADR) does not regulate Galvanized (Hot Dipped) Sheet — High Strength Steel as a hazardous material. Shipping Name: Not Applicable (NA) Packaging Portable Tanks & Bulk Containers NA Packing Group: NA ¢) Mixed Packing Provisions: NA ADR Label: NA NA Limited Quantities: NA International Air ‘Transport Association (ATA) does not regulate Galvanized (Hot Dipped) Sheet — High Strength Steel as a hazardous material, Shipping Name: Not Applicable (NA) Passenger & Cargo Aircraft Cargo Aircraft Only: | Special Provisions: Class/Division: NA Limited Quantity (EQ) Pkg Inst: NA NA Hazard Label (s): NA Pkg Inst: NA UN No.: NA Max Net Qty/Pkg: ERG Code: NA Packing Group: NA Max Net Qty/Pkg: | Max Net Qty/Pkg: [NA Excepted Quantities (EQ): NA NA Pkg Inst ~ Packing Instructions Max Net Qty/Pkg ~ Maximum Net Quantity per Package ERG — Emergency Response Drill Code Transport Dangerous Goods (TDG) Classification: Galvanized (Hot Dipped) Sheet — High Strength Steel does not have a TDG classification. Regulatory Information: The following listing of regulations relating to a U. S. Steel product may not be complete and should not be solely relied upon for all regulatory compliance responsibilities. ( This product and/or its constituents are subject to the following regulations: SARA Potential Hazard Categories: Immediate Acute Health Hazard; Delayed Chronic Health Hazard Section 313 Supplicr Notification: The product, Galvanized (Hot Dipped) Sheet — High Strength Steel contains the following toxic chemicals subject to the reporting requirements of section 313 of Title IIL of the Superfund Amendments and Reauthorization Act of 1986 and 40 CER part 372: CAS # Chemical Name Percent by Weight 7440-47-3 Chromium 1.5 max 7439-96-5 Manganese 3.0 max 7440-02-0 Nickel 0.6 max State Regulations: The product, Galvanized (Hot Dipped) Sheet — High Strength Steel as a whole is not listed in any state regulations. However, individual components of the product are listed in various state regulations: This product can expose you to chemicals including chromium (hexavalent chromium compounds), nickel California Prop. N (metallic) which is known to the State of California to cause cancer, and chromium (hexavalent chromium 65: L compounds) which is known to the State of California to cause reproductive toxicity. For more information go to www.P65Warnings.ca.gov. Other Regulations

WHMIS Classification

(Canadian) The product, Galvanized (Hot Dipped) Sheet — High Strength Steel is not listed as a whole. However individual components are listed. Ingredients