NOVELTY - A glass comprises 36-50 mol% phosphorus pentoxide, 10-30 mol% potassium oxide, 5-20 mol% sodium oxide, 2-20 mol% lithium oxide, 5-15 mol% aluminum oxide, 0-17 mol% barium oxide, 0-10 mol% strontium oxide, 0-12 mol% zinc oxide, and 0-10 mol% of 1 or more compounds chosen from niobium oxide, tantalum oxide, gadolinium oxide, titanium dioxide, gallium oxide, zirconium oxide and silicon dioxide, and does not contain lead oxide. The total content of barium oxide and strontium oxide is 5-20 mol%. The total content of potassium oxide, sodium oxide and lithium oxide is 25-50 mol.%.    USE - Glass is used in adhesion of metal and ceramic, and 2 types of metals e.g. aluminum and stainless steel, and as glass layer in metallic component (all claimed). Uses include but are not limited to LED package, solar cell, plasma display panel, variable frequency drive, organic electroluminescent device, liquid crystal display, field emission display, micro-electromechanical system, integrated circuit package, crystal oscillator and piezoelectric vibrator.    ADVANTAGE - The glass provides metallic component having high water resistance and low thermal expansion coefficient difference.    DETAILED DESCRIPTION - A glass comprises 36-50 mol% phosphorus pentoxide, 10-30 mol% potassium oxide, 5-20 mol% sodium oxide, 2-20 mol% lithium oxide, 5-15 mol% aluminum oxide, 0-17 mol% barium oxide, 0-10 mol% strontium oxide, 0-12 mol% zinc oxide, and 0-10 mol% of 1 or more compounds chosen from niobium oxide, tantalum oxide, gadolinium oxide, titanium dioxide, gallium oxide, zirconium oxide and silicon dioxide, in terms of oxide. The total content of barium oxide and strontium oxide is 5-20 mol%. The total content of potassium oxide, sodium oxide and lithium oxide is 25-50 mol.%. The difference between the total content of barium oxide and strontium oxide and the content of zinc oxide is (-2)% or more. The glass does not contain lead oxide. An INDEPENDENT CLAIM is included for metallic component (1), which consists of metallic substrate (2), and glass layer formed using the glass on surface of metallic substrate.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of LED package formed using glass.    Metallic component (1)    Metallic substrate (2)    Insulation film (3)    LED package (10)    LED element (11)