| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.31 ( November 1994 ) Special Issue on 'Stainless Steel 'and ' Engineering and Construction' ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| High Formability R429EX and Heat-Resistant R444EX Stainless Steels for Automotive Exhaust Manifold Atsushi Miyazaki, Makio Gunzi, Keiichi Yoshioka |
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Synopsis : Effects of chemical elements on formability and heat resistance of ferritic stainless steels for automotive exhaust manifolds have been investigated. As a result, two new stainless steels, R429EX and R444EX, have been developed. R429EX is superior in the thermal fatigue property and formability to the conventional steel (type 430J1L) with good high temperature strength and structual stabilization. R444EX is superior in the thermal fatigue property, high temperature strength and structual stabilization to the conventional steel with good formability. Consequently R444EX is expected to meet the requirements of lighter weight and stricter regulations for the exhaust gas. |
| TextiPDF: 8p./469kbj |