Other Specialty Metals
Molybdenum Materials
Item	Sign/Main Content	Executed Standard	Regular Sizes
Molybdenum Rod/ Bar	Mo361, TZM Alloys, Mo-La Alloys	ASTM B387	Diameter 5 to 80mm
Molybdenum Plate/Sheet	Mo361, TZM Alloys, Mo-La Alloys	ASTM B386	Thickness 0.1 to 50mm, Width up to 500mm, Length up to 2000mm
Molybdenum Tube	Mo361, TZM Alloys, Mo-La Alloys	ASTM B386	Outer Diameter 5 to 50mm, Thickness 0.5 to 5mm
Tungsten Materials
Item	Sign/Main Content	Executed Standard	Regular Sizes
Tungsten Plate/Sheet	W1, W2	GB/T3875-2006	Diameter 0.3 to 20mm, Length 300 to 1000mm
Tungsten Rod	W1, W2	QB/SL018-2007	Diameter 5 to 80mm
Tungsten Wire	W1, W2	QB/SL018-2007	Diameter 0.8 to 4mm
Tungsten Tube	W1, W2	GB/T4187-1984, ASTM F288-90	Outer Diameter 3 to 50mm, Length 0.5 to 5mm
Tantalum Materials
Item	Sign/Main Content	Executed Standard	Regular Sizes
Tantalum Plate/Sheet	R05200, R05400, R05255, R05252, R05240	ASTM B708-2005	Diameter 3 to 50mm, Length up to 5000mm
Tantalum Rod	R05200, R05400, R05255, R05252 ,R05240	ASTM B365	Diameter 0.08 to 20mm, Length 300 to 1000mm
Tantalum Wire	R05200, R05400, R05255, R05252, R05240	ASTM B365	Diameter 5 to 80mm
Tantalum Tube	R05200, R05400	ASTM B521	Outer Diameter 0.8 to 30mm, Length 0.5 to 5mm
Niobium Materials
Item	Sign/Main Content	Executed Standard	Regular Sizes
Niobium Plate/Sheet	R04200, R04210	ASTM B393-05	Diameter 0.08 to 20mm, Length 300 to 1000mm
Niobium Rod	R04200, R04210	ASTM B392-03	Diameter 5 to 80mm
Niobium Wire	R04200, R04210	ASTM B392-03	Diameter 0.8 to 4mm
Niobium Tube	R04200, R04210	ASTM B394-2003, GB/T8183-1987	Outer Diameter 3 to 50mm, Length 0.5 to 5mm
Zirconium Materials
Item	Sign/Main Content	Executed Standard	Regular Sizes
Niobium Plate/Sheet	R60702, R60704, R60705	ASTM B551	Diameter 0.03 to 50mm, Length 300 to 1000mm
Niobium Rod	R60702, R60704, R60705	ASTM B550	Diameter 5 to 80mm
Niobium Wire	R60702, R60704	ASTM B550	Diameter 0.8 to 4mm
Niobium Tube	R60702	ASTM B523	Outer Diameter 3 to 80mm, Length 0.5 to 7mm