Tungsten Heavy Alloy grades Mil-T-21014

Mil-T-21014

Grade	Mil-T-21014
	Class1	Class 1	Class 2	Class 3	Class 3	Class 4
Composition	90%W, 6%Ni4%Cu	90%W, 7%Ni3%Fe	92.5%W, 5.25%Ni 2.25%Fe	95%W, 3.5%Ni 1.5% Cu	95%W, 3.5%Ni 1.5%Fe	97%W, 2.1%Ni 0.9%Fe
Density (gm/cc;lbs/in3)	17;0.614	17;0.614	17.5;0.632	18;0.65	18;0.65	18.5;0.668
Hardness (RC)	24	25	26	27	27	28
Ultimate Tensile Strength (PSI)	110,000	120,000	114,000	110,000	120,000	123,000
Yield Strength, .2% Offset (PSI)	80,000	88,000	84,000	85,000	90,000	85,000
Elongation (% in 1″)	6	10	7	7	7	5
Proportional Elastic Limit (PSI)	45,000	52,000	46,000	45,000	44,000	45,000
Magnetic Properties	Nil	Slightly Magnetic	Slightly Magnetic	Nil	Slightly Magnetic	Slightly Magnetic
ASTM-B-459-67	Grade1 Type Ⅱ && Ⅲ	Grade1 Type Ⅱ && Ⅲ	Grade2 Type Ⅱ && Ⅲ	Grade3 Type Ⅱ && Ⅲ	Grade3 Type Ⅱ && Ⅲ	Grade4 Type Ⅱ && Ⅲ

　

NAVY MIL-T-21014: tungsten base parts, high density metal (sintered or hot pressed), coated, electrodeposited chromium