Tungsten heavy alloy grades钨合金标准Mil-T.doc

Tungsten heavy alloy grades 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 & Grade1 Type & Grade2 Type & Grade3 Type & Grade3 Type & Grade4 Type & NAVY MIL-T-21014: tungsten base parts, high density metal (sintered or hot pressed), coated, electrodeposited chromium ASTM B 777-99 Class 1 2 3 4 Tungsten Nominal % 90 92.5 95 97 Density (g/cc) 16.85-17.25 17.15-17.85 17.75-18.35 18.25-18.85 Hardness (HRC) Max 32 33 34 35 Ultimate Tensile Strength ksi 110 110 105 100 Mpa 758 758 724 689 Yield Strength at 0.2% off-set ksi 75 75 75 75 Mpa 517 517 517 517 Elongation, % 5 5 3 2 ASTM B777-99 Standard Specification for Tungsten Base, High-Density Metal 1.his specification covers the requirements for four classes of machinable,high-density tungsten base metal produced by consolidation of metal powder mixtures of which the composition is mainly tungsten. This material specification may be used for bare parts or be used for parts that may be coated with other materials for protection against corrosion and abrasion. 2. Intended Use -Parts made from this material are intended for uses such as weights or counter-balances in static or dynamic balancing high-speed rotating inertia members, radiation shielding, hypervelocity impact, and vibration-damping applications. 3.Special Applications -For particular applications, properties or requirements may be important. These alloys may contain elements which make them magnetic. Where freedom from magnetic response is required, this should be specified in the purchase order. Class 4 is not available in a non-magnetic grade. For purposes of this specification, non-magnetic characteristics are defined as material having a maximum magnetic permeability of 1.05. Also for special applications involving large sections, methods for determining internal quality, such as mechanical tests on specimens from these larger sections or suitable nondestructive tests may be applied. If required, these additional tests shall be specified in the purchase order. 钨合金标准Mil-T-21014 等级Mil-T-21014 Class1 Class 1 Class 2 Class 3 Class 3 Class 4 配比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 密度 (gm/cc;lbs/in3) 17;0.614 17;0.614 17.5;0.632 18;0.65 18;0.65 18.5;0.668 硬度 (RC) 24 25 26 27 27 28 极限抗拉强度 (PSI) 110,000 120,000 114,000 110,000 120,000 123,000 屈服强度, .2% Offset (PSI) 80,000 88,000 84,000 85,000 90,000 85,000 延伸率(% in 1) 6 10 7 7 7 5 比例弹性限度 (PSI) 45,000 52,000 46,000 45,000 44,000 45,000 磁性Nil Slightly Magnetic Slightly Magnetic Nil Slightly Magnetic Slightly Magnetic ASTM-B-459-67 Grade1 Type & Grade1 Type & Grade2 Type & Grade3 Type & Grade3 Type & Grade4 Type & NAVY MIL-T-21014:钨基零件, 高比重金属 (烧结或热压), 镀层, 电镀铬ASTM B 777-99 Class 1 2 3 4 钨比例 % 90 92.5 95 97 密度(g/cc) 16.85-17.25 17.15-17.85 17.75-18.35 18.25-18.85 硬度 (HRC) Max 32 33 34 35 极限抗拉强度ksi 110 110 105 100 Mpa 758 758 724 689 屈服强度 at 0.2% off-set ksi 75 75 75 75 Mpa 517 517 517 517 延伸率, % 5 5 3 2 钨基，高比重金属的ASTM B777-99标准 1.规格包括了四种等级，易加工，高比重钨基金属，由金属粉末混合压制而成，而主要成分为钨。这种材料的规格可以用来做零部件或者有其他镀层来保护不受腐蚀。2.用途 -此材料制成的产品可用来做静态动态高速惯性系统的配重，屏蔽件，减震产品。3.特殊用途 -如用于特殊用途, 性能要求就很重要. 此合金包括可以使其有磁性的材料。若要求不含磁，必须在订单中指明。Class 4不是无磁等级. 此项规格，无磁性被定义为最大磁导率为1.05.Alloy Type(%)90 W6 Ni4 Cu90 W7 Ni3 Fe92.5 W5.25 Ni2.25 Fe92.5 WBalanceNi, Fe, Mo93 WBalanceNi, Fe, Mo95 W3.5 Ni1.5 Cu95 W3.5 Ni1.5 Fe97 W2.1 Ni.9 FeMIL-T-21014Class 1Class 1Class 1-Class 3Class 3Class 4SAE-AMS-T-21014Class 1Class 1Class 2-Class 3Class 3Class 4AMS 7725 C7725 C7725 C-ASTM B777-87Class 1Class 1Class 2-Class 3Class 3Class 4Typical Density(g/cc)17.117.117.517.617.7181818.5Typical Density(lbs/in3)0.6140.6140.6320.6360.6390.650.650.668Typical Hardness RC2425263032272728Ultimate Tensile Strength Min(ksi)110,000120,000114,000120,000125,000110,000120,000123,0000.2% Offset Yield Strength Min(ksi)80,00088,00084,00090,00095,00085,00090,00085,000Minimum % Elongation(1 gage length)610744775Proportional Elastic Limit(PSI)45,00052,00046,00055,00060,00045,00044,00045,000Modulus of Elasticity(x106psi)40 x 10645 x 10647 x 10652 x 10653 x 10645 x 10650 x 10653 x