Material word
S2 steel
“S2” 3of 42 listings print it
What it names
A tool steel designation. AZoM, a trade publisher, groups S2 with the shock-resisting tool steels and lists it under the UNS number T41902 and the ASTM A681 specification.
Who defines it
Traced to a trade reference
ASTM A681 is ASTM’s specification for alloy tool steels, with requirements for chemistry, hardness and more. Its public page does not list S2 by name, so on this site the designation is traced through the trade reference rather than the standard page itself.
What it does not promise
A grade name says what a steel is called. It is not a hardness figure, and the count of listings printing S2 that also print a hardness figure is none. Nothing about how long a bit lasts follows from the name, and this site does not suggest otherwise.
Every listing printing S2 in this catalog is a screwdriver set. None of them names the heat treatment or a supplier of the steel.
Listings printing it 3
| Listing | Category | Word as printed | Wear points named |
|---|---|---|---|
| AXTH 37-in-1 Precision Screwdriver Set, S2 Magnetic | Screwdriver Sets | S2 | Bit tip |
| coobeast 49-Piece Preset 1/4 inch Torque Screwdriver with S2 Bits | Screwdriver Sets | S2 | Bit tip, Chuck and drive |
| VMAN Ratchet Screwdriver Set with S2 Bits and Flexible Shaft | Screwdriver Sets | S2 | Bit tip, Chuck and drive |
Sources
- ASTM A681, Standard Specification for Tool Steels Alloy · ASTM International
- S2 Tool Steel – Shock-Resisting Steel (UNS T41902) · AZoM, a trade publisher