UNS S42000, commonly known as Stainless Steel 420 is the high carbon content version of Stainless Steel 410. Corrosion resistance is similar between the two, but Stainless Steel 420 additionally provides increased strength and hardness. Like Stainless Steel 410 it is also considered a “general purpose grade” including at least 12% chromium, which is enough to give it acceptable corrosion resistance. Typically, Stainless Steel 420 achieves its best corrosion resistance when the alloy is hardened and polished, or surface ground.
| C | MN | P | S | SI | CR | NI | MO | CU | OTHER | M/NM |
|---|---|---|---|---|---|---|---|---|---|---|
| .15 | 1. | .04 | .03 | 1. | 11.5 – 13.5 | .75 | .5 | .5 | Al .05 Sn .05 N .08 | M |
| UNS | TYPE | AMS | ASTM | FEDERAL | CHARACTERISTICS |
|---|---|---|---|---|---|
| S41000 | 410 | 5613 | A-276 A-314 A-479 A-493 | QQ-S-763 | 410 is a low cost general purpose stainless steel, that hardens at 35-39 RC and is used widely where corrosion is not severe. |
Products partially or completely constructed of 410 & 420 include:
Bearings
Bushings
Cutlery
Dies
Fasteners
Hand tools
Plastic molds
Pump shafts
Screens
Steam/Gas
Surgical instruments
Turbine blades
Valves/Valve components
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