420 B / 1.4028
1.4028 is a stainless martensitic chrome steel. Higher carbon version of 1.4021 (420A). Although the stainless properties are the same, it can get higher hardness. It is a material that is relatively easy to process in stainless steel groups. Moderately aggressive, non-chlorinated environment, good corrosion resistance in organic acids, soaps and solvents. It can be cut and shipped according to the desired size.
Plastic molds, Automotive industry, Starch and paper grinding systems, Compressor manufacturing, Shipbuilding, Valve and pump manufacturing, Knife manufacturing, Food industry, Medical equipment, Turbine parts, Press plates in the plastic processing industry BS 420S45
AFNOR Z30Z13
UNI X30Cr13
UNI X31Cr13KU
SIS 2304
UNE F3403 X30Cr13
UNE F5262 X30Cr13
AISI 420
AMS 5621
UNS S42000
JIS – SUS 420J2
GOST 30Ch13
Chemical Composition
| C % | Mn ≤ % | P ≤ % | S ≤ % | Sİ ≤ % | Cr % |
|---|---|---|---|---|---|
| 0,30 | max 1,0 | max 0,04 | max 0,03 | max 1,0 | 13,0 |
Mechanical Properties
| Hardness HB | %0,2 Yield Strength N/mm2 | Tensile Strength N/mm2 |
|---|---|---|
| max 245 (annealed) | max 650 | 930-1910 (hardened + tempered) max 800 (annealed) |