Astm AN234 Carbon Carbon Carbon da ya dace da saiti, alloy karfe-kwalliya da cromums, monel, m cocinoy, mafi kyawun ƙarfi, da ƙarfi m jingoring da dorros mai kyau. Yawancin amfani da bututun gas da gas, masana'antar sinadarai, tsire-tsire masu ƙarfi, tsire-tsire na makaman nukiliya, sabobin da sauran filayen.