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• Charpy V-notch (CVN) impact values shall conform to the following minimum values for non fracture critical <br /> members: <br /> Material Conforming to CVN Impact Value <br /> ASTM Designation: A 709/A 709M Joules at Temp.) <br /> Grade 36[2501 20 at 4°C <br /> Grade 50[3451* 50 mm and under in thickness 20 at 4°C <br /> Grade 50W[345W]*(50 mm and under in 20 at 4°C <br /> thickness <br /> Grade 50[345]*(Over 50 mm to 100 mm in 27 at 4°C <br /> thickness <br /> Grade 50W[345W]*(Over 50 mm to 100 mm in 27 at 4°C <br /> thickness <br /> Grade HPS 50W[345W]*(100 mm and under in 27 at-12°C <br /> thickness <br /> Grade BPS 70W[485]*(100 mm and under in 34 at-23°C <br /> thickness <br /> Grade 100 490 65 mm and under in thickness 34 at-18°C <br /> Grade IOOW[490W](Over 65 mm to 100 mm in 48 at-18°C <br /> thickness <br /> * If the yield point of the material exceeds 450 MPa,the temperature for <br /> the CVN impact value for acceptability shall be reduced 8°C for each <br /> increment of 70 MPa above 450 MPa. <br /> Structural Steel Materials <br /> Material Specification <br /> Structural steel: <br /> Carbon steel ASTM: A 709/A 709M,Grade 36[250] <br /> or tA 36/A 36M a <br /> High strength low alloy ASTM: A 709/A 709M,Grade 50 <br /> columbium vanadium steel 345 or A 572/A 572M,Grade 50 345 a <br /> High strength low alloy ASTM: A 709/A 709M,Grade 50W[345W], <br /> structural steel Grade HPS 50W[HSP 345W], <br /> or JA 588/A 588M)a <br /> High strength low alloy ASTM: A 709/A 709M,Grade HPS 70W <br /> structural steel plate HPS 485W <br /> High-yield strength, ASTM: A 709/A 709M,Grade 100[690]and <br /> quenched and tempered alloy Grade 100W[690W],or {A 514/A 514M}a <br /> steel plate suitable for <br /> welding <br /> Steel fastener components <br /> for general applications: <br /> Bolts and studs ASTM: A 307 <br /> Headed anchor bolts ASTM: A 307,Grade B,including S 1 <br /> supplementary requirements <br /> Nonheaded anchor bolts ASTM: A 307,Grade C,including S 1 <br /> supplementary requirements and S 1.6 of <br /> AASHTO: M 314 supplementary <br /> requirements or AASHTO: M 314,Grade 36 <br /> or 55,including S1 supplementary <br /> requirements <br /> High-strength bolts and ASTM: A 449,Type 1 <br /> studs <br /> High-strength threaded ASTM: A 449,Type 1 <br /> rods <br /> High-strength ASTM: A 449,Type 1 <br /> nonheaded anchor bolts <br /> Contract No. 10-OM7104 <br /> 44 <br />