Browse Publications Technical Papers 2000-01-0763
2000-03-06

Dissimilar Welding of Si-Mo Ductile Iron Exhaust Manifold Welded to Stainless Steel Catalytic Converter using NI-ROD Filler Metal 44HT 2000-01-0763

The demands of modern society continue to drive automotive design to greater efficiency and cleaner operation at lower cost. Higher operating temperatures are now typically required to meet these demands, making the use of more robust materials and joining techniques a necessity. This paper describes how the benefits of reduced emissions and greater fuel economy along with quieter operation are achieved by using silicon-molybdenum modified ductile iron exhaust manifolds welded to close-coupled 400 series stainless steel catalyst cans. This weldment is made possible by using a newly-developed stabilized Ni-Fe-Mn-Cr-Cb welding wire called NI-ROD® Filler Metal 44HT. Durability testing of fabricated exhaust components under extreme dynamometer testing has shown that this welding material provides successful higher temperature performance by the ductile iron than that provided by previous weldments of the same iron.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Development of a Heat Resistant Cast Iron Alloy for Engine Exhaust Manifolds

2005-01-1688

View Details

TECHNICAL PAPER

Investigations of the Zeolite Formation on Ceramic Honeycombs for HC Absorption in the Cold Start Emission Control

2001-26-0020

View Details

TECHNICAL PAPER

Development of High Corrosion Resistant Stainless Steels for Automotive Mufflers Based on Condensate Corrosion Test and Field Investigation

2001-01-0640

View Details

X