Weldcote Er120S-1 Deposits Are High Strength Where Tough Weld Metal May Be Needed On A Variety Of Steels In Critical Applications. Er120S-1 Is Developed For High Yield Steels Such As: T-1, Hy-100 And Other Quenched And Tempered Steels Often Exceeding 120,000 Psi Tensile Strengths. Application Including Mining, Pressure Vessels, Shipbuilding, Military Equipment And General High Strength Fabrication. Weld Metal Yields A High Ductility With A Great Strength And Impact Resistance While Offering High Notch Toughness To -60 Degrees F. Er120S-1 Preheat And Interpass Temperature Of 275-350 Degrees F May Be Required. Weld Deposit Mechanical Properties Will Vary Depending On Heat Input Used.