Stainless Steel Weld Color Chart. Topic welding industry technical discussions stainless steel discoloration by apiguy date 06 19 2002 16 16 does anyone know where i can obtain a chart that would describe the heat tint discoloration of stainless steels. Color in a weld is a sign of oxide.
Use argweld purgeye weld purge monitors to detect oxygen levels down to 10 ppm to eliminate oxidation weld reject and potential weld failure. Color on a weld. On stainless steel for example any color in the weld or haz shows that an oxide layer has formed which can affect corrosion resistance.
The colors formed are similar to the temper colors seen on other steel surfaces following heat treatment and range from pale straw hues to dark blue.
It shows approximate post weld colors and the corresponding temperatures in degrees c the table below represents the temper colours that are likely to form on stainless steel type 1 4301 aisi 304 if heated in air. It shows approximate post weld colors and the corresponding temperatures in degrees c the table below represents the temper colours that are likely to form on stainless steel type 1 4301 aisi 304 if heated in air. On stainless steel for example any color in the weld or haz shows that an oxide layer has formed which can affect corrosion resistance. The colors formed are similar to the temper colors seen on other steel surfaces following heat treatment and range from pale straw hues to dark blue.
