How to do Welding of 904l Stainless Steel

The answer to how to do welding of 904L stainless steel, is that all conventional methods can be used, to do the welding. Grade 904L rods and electrodes are used for the welding of 1.4539 Inox. Pre-heat treatment and post-weld heat treatment are not needed for Stahl 1.4539. N08904 Stainless Steel has a Tensile Strength at Break of 71000 psi (490 MPa). The Yield Tensile Strength of N08904 Material is 31000 psi (214 MPa). N08904 Grade has a Reduction of Area of 40%. The linear CTE of 1.4539 Material is 5.80 µin/in-°F (10.4 µm/m-°C).

SS 904L VS SS316L

Comparing SS 904L vs SS316L, SS 904L has UNS N08904 and SS316L has UNS S31603. SS 904L has low carbon content and copper has been added to it, to increase its resistance against strong reducing acids, like sulphuric acid. SS316L is a low carbon version of 316 and to this, molybdenum has been added, which gives it good resistance to corrosion. 1.4539 Stainless Steel displays superb resistance to chloride attacks and even warm seawater. SS316L shows very good resistance to corrosion in various corrosive media and atmospheric environments. But, though SS316L is considered to be a lower cost option, its resistance to corrosion is much lesser.

SS 904L Price per Pound in India

904L stainless steel price in India is Rs. 800 per kilo. Which means it would cost around 8.97 Pounds. It does not indicate that this is the cost of 1.4539 Inox in countries like Europe, China, Singapore, Japan, USA, etc. For instance, Stahl 1.4539 could be purchased at 35% less in India, than it is being sold in the United States of America. Or, SS 904L could be bought for 20% less in India, than it is available in Japan. An important factor that must always be taken into consideration is that the cost of UNS N08904 material is always changing.