420 A / 1.4021
1.4021 is a martensitic stainless steel rich in carbon with a chromium content of 12%, with good corrosion resistance against moderate corrosives such as organic acids, soaps and solvents and in chloride-free environments.
Machine manufacturing, medical equipment, petroleum and petrochemical industry, hydraulic industry, manufacture of pumps, valves and compressor parts are its main application areas.STANDARDS
DIN X20Cr13 – X21Cr13
1.4014
AFNOR Z20C13
UNI X21Cr13KU
SIS 2303
UNE F3402 F5261
AISI 420
JIS SUS 420J1
GOST 20Ch13
Chemical Composition
| C % | Mn ≤ % | P ≤ % | S ≤ % | Sİ ≤ % | Cr % |
|---|---|---|---|---|---|
| 0,20 | max 1,0 | max 0,04 | max 0,03 | max 1,0 | 13,0 |
Mechanical Properties
| Твърдост HB | %0,2 Провлачване N/mm2 | Издръжливост на опън N/mm2 | Удължение % |
|---|---|---|---|
| max 230 | 500-550 | 700-950 | 13-10 |