Measures to prevent AUSTENITIC GB4237 00Cr19Ni10 stainless steel intergranular corrosion

Measures to prevent AUSTENITIC GB4237 00Cr19Ni10 stainless steel intergranular corrosion are:

1 Adjust the AUSTENITIC GB4237 00Cr19Ni10 stainless steel chemical compositiMeasures to prevent AUSTENITIC GB4237 00Cr19Ni10 stainless steel intergranular corrosion
Measures to prevent AUSTENITIC GB4237 00Cr19Ni10 stainless steel intergranular corrosion are:

1 Adjust the AUSTENITIC GB4237 00Cr19Ni10 stainless steel chemical composition of the weld and add stabilizing elements to reduce the possibility of forming chromium carbide, such as adding titanium or tantalum.

2 Reducing the AUSTENITIC GB4237 00Cr19Ni10 stainless steel carbon content in the weld can reduce and avoid the formation of chromium carbides, thereby reducing the tendency to form grain boundary corrosion. The carbon content is below 0.04%, which is called “ultra-low carbon” stainless steel. Avoid the formation of chromium carbides.

3 technological measures to control the AUSTENITIC GB4237 00Cr19Ni10 stainless steel  residence time in the dangerous temperature zone to prevent overheating, fast welding and rapid cooling, so that carbon is too late to precipitate.
Austenitic stainless steel welded structure prevention method
1. Use low carbon grade 00Cr19Ni10 (304L) or 00Cr17Ni14Mo2 (316L), or stable grade 0Cr18Ni11Ti (321, more common in Europe) or 0Cr18Ni11Nb (347, more common in the United States). Use these grades of stainless steel to prevent carbide precipitation during welding The number of harmful effects.

2. If the structural member is small and can be heat-treated in a furnace, heat treatment may be performed at 1040-1150 ° C to dissolve chromium carbide, and rapid cooling in the interval of 425-815 ° C to prevent precipitation of carbon.
AUSTENITIC GB4237 00Cr19Ni10 stainless steel is katalor’s main steel. Katalor has huge advantage on supplying AUSTENITIC GB4237 00Cr19Ni10 stainless steel. USTENITIC GB4237 00Cr19Ni10 stainless steel’s clients of katalor purchase from us every year. Welcome to send your any question for USTENITIC GB4237 00Cr19Ni10 stainless steel.

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