Nitronic 50 SGS Material Testing Report

A seal can fail many ways, but the wrong metal is the most expensive one. So the Nitronic 50 bar we machine from goes through SGS testing before it becomes a part.

Report GZIN2609008164ML01, issued by SGS Guangzhou in September: a Ø30 bar, heat No. 502856, sent in by us as the buyer. Not a mill certificate taken at face value — a third-party check on the material itself.

Eleven elements analysed against ASTM A276/A276M-25 type XM-19 (S20910), all Pass. Brinell hardness 188 HBW. Tensile 106 ksi against a required 100, yield 56 against 55, elongation 52%, reduction of area 77%. Pass on every line.

This is what material selection looks like when it is done properly. Nitronic 50 goes into the sleeves and shafts that carry the load, where strength and corrosion resistance decide how long the seal lasts. Lepu builds mechanical seals for rotating equipment in Guangzhou: single mechanical seals, a mechanical seal for water pump or mechanical seal for centrifugal pump duty, mechanical pump shaft seals, OEM replacement mechanical seals, OEM pump mechanical seals and mechanical seal replacement parts. Ask for the material report with your quote — we will send both.