Chemically, elements such as manganese, silicon, sulfur, phosphorus, copper, columbium, chromium, carbon, cobalt, molybdenum, niobium, tantalum, titanium, aluminum, iron, nickel, boron, etc. must comply with the normative standard ASTM B670. Raws li cov ATTM B670 cov lus qhia meej, inconel 718 DIN 2.4668 polished daim phiaj yuav tsum tseem pom lub zog tensile, kom muaj kev xav tau lub zog. Tsis tas li ntawd, Alloy 718 Nickel Gasket Tshuag yuav tsum muaj kev ntxhov siab tau kuaj raws li ASTM cov ntaub ntawv sau tseg ntawm no.