Grease Nipples-Stainless Steel

Please find hereafter a selection of our grease nipples which we provide in the galvanized steel variant, in brass and also – as standard – in stainless steel.

The stainless steel grades we most commonly use are 1.4305 = 303 (V2A) and 1.4404 = 316L (V4A). Other models and materials can, of course, be supplied. Do ask us about the types wanted and sizes !

What is the origin of the “V2A steel” and “V4A steel” names?

• V2A Steel came about in the German Krupp steel works in 1912 as “Versuchs (test) smelt 2 Austenite” and has remained to this day as the most usual designation in Germany.
• V4A also arose there as “Versuchs (test) smelt 4 Austenite” and continues to be known of under this test heading.

Austenite is the name for a chrome/nickel steel which cannot be hardened by heat treatment and is, as a rule, non-magnetiseable.

In particular, more and more enquiries are being made about V4A stainless steel. What makes this material so special ?

• In contrast to SST303 (V2A), SST316L (V4A) steel – 1.4404 is additionally alloyed with 2 -2.5 % of molybdenum (Mo). This makes the steel that much more resistant to corrosion – especially in media containing chloride (seawater, swimming baths, chemical industry, etc.). In addition, its exceptional longevity ensures that the material is used in a highly cost-effective manner.