70SB2L09336

• Filler metals of this classification are used to weld ½Cr-½Mo, 1Cr-½Mo, ¼Cr-½Mo steels for elevated temperatures and corrosive service.
• These creep resistant steels are typically used in chemical industries for heat exchangers, boilers, piping and pressure vessels at service temperatures up to 1000°F.
• Due to the low carbon content, and thus lower strength level, this alloy exhibits greater resistance to cracking and is more suitable for welds to be left in the as welded condition than ER80S-B2.
• The strength requirements and classification designator have been changed to reflect the true strength capabilities of the chemical composition.
• Preheat and interpass temperatures are typically kept between 275-325°F.