​ASTM B443 Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy

ASTM B443 Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) and Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219)* Plate, Sheet, and Strip

1.1 ASTM B443 Standard Specification covers rolled nickel-chromiummolybdenum-columbium alloy (UNS N06625) and nickelchromium-molybdenum-silicon alloy (UNS N06219)* plate, sheet, and strip. 

1.1.1 Alloy UNS N06625 products are furnished in two grades of different heat-treated conditions: 1.1.1.1 Grade 1 (Annealed)—Material is normally employed in service temperatures up to 1100°F (593°C). 

1.1.1.2 Grade 2 (Solution Annealed)—Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required. 

NOTE 1—Hot-working or reannealing may change properties signififi- cantly, depending on working history and temperatures. 

1.1.2 Alloy UNS N06219 is supplied in solution annealed condition only. 

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.