1.4021_flach_gesaegter_zuschnitt 1.4021_rund_gesaegter_zuschnitt gesägter_Zuschnitt_1.4021_flach_geschmiedet gesägter_Zuschnitt_1.4021_rund

1.4021 (X20Cr13)

1.4021 (X20Cr13) directly from stock & cut to your required dimensions

International term:

AISI420A / STS420J1 / SUS420J1 / S4200 / D42020 / 420S37 / SS2303

Application field:

1.4021 is a corrosion and acid resistant martensitic chromium steel with good corrosion resistance in moderately corrosive, chloride-free media, such as organic acids, soaps and solvents.

Main application in mechanical engineering, petroleum and petrochemical industry, hydraulic industry.


Weldability:         good

Machinability:      5 (1 = very bad - 10 = good)

Polishability:        yes

Corrosion class:  1 (0 = weak - 5 = good)

Chemical composition:

min. 0,16         12,0          
max. 0,25 1,0 1,5 0,04 0,02 14,0          
The chemical composition please take out of the print version.

From stock:

Round, forged, quenched and tempered, machined
Flat, forged, quenched and tempered


Benefit of sawn cuts:

The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting. Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.

This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.