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DESCRIPTION Grade Temperature Strength and Ductility Range 　 Tensile Yield Reduction Elongation Alloy AISI 　 Min. of Area EL Type 　 psi R/A 　 　 ASTM A-193 B7 High Temp. 125,000 100,000 50 16 Cr-Mo (4140) from 0 – 480ºC ASTM A-193 B7M High Temp. 100,000 80,000 50 18 Cr-Mo (4140) from 0 – 450ºC ASTM A-193 B16 High Temp. 125,000 105,000 50 18 Cr-Mo V (4140M) from 0 – 550ºC ASTM A-320 L7 Low Temp. 125,000 105,000 50 16 Cr-Mo -4140 -101ºC ASTM A-320 L7M Low Temp. 100,000 80,000 50 18 Cr-Mo -4140 -73ºC ASTM A-193 B8 Low Temp. 75,000 30,000 50 30 18% CR – (304) -200 – 650ºC 8% Ni ASTM A-193 B8M Low Temp. 75,000 30,000 50 30 16%Cr – (316) -200 – 750ºC 10% Ni ASTM A-320 B8 Low Temp. 75,000 30,000 50 30 18% Cr – (304) -200 – 650ºC 8% Ni ASTM A-320 B8M Low Temp. 75,000 30,000 50 30 16% Cr – (316) -200 – 750ºC 10% Ni 　   Threaded Rods / Stud Bolts : ASTM A193 Grade B7, Grade B7M, Grade B16  Threaded Rods , Stud Bolts : ASTM A320 Grade L7,Grade L7M

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