Home » Materials » Duplex steel » A182 F51 2205 S31803 flange ring provides high mechanical strength and good weldability

A182 F51 2205 S31803 flange ring provides high mechanical strength and good weldability

The SA 182-F51 S31803 comes under ASME B16.47, B16.48 and B16.5 standards with sizes ranging from 1/8 NB to 48NB.

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The S31803 flanges can’t to be used over 315¡ãC, as the material may become brittle when used at moderate temperatures. ¡°Duplex¡± describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. It reaches the phase balance of austenite and ferrite in roughly same volume fraction.

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