- EN / Grade
- 1.4021
- Other designations / UNS
- 420 / X20Cr13
UNS S42000 - Family
- Martensitic
Turn the 420 label into an exact grade
The steel name for 1.4021 is X20Cr13. Designations such as X30Cr13 and X46Cr13 within the wider 420 family have different carbon ranges and processing expectations. Specify the EN number, applicable specification and delivery condition rather than requesting 420 alone.
Distinguish annealed bar from the hardened component
The starting condition suitable for machining and the finished component’s hardness and toughness requirements are different information. Plan hardening, tempering and final surface operations together. Even after heat treatment, corrosion performance must be assessed against the environment and finished surface.
Typical application areas
Shafts, pump parts, mechanical components.
Product and cutting options
Share the section and dimensions you require for this grade. Availability is assessed for each request; the catalogue does not represent live stock.
What to specify in your enquiry
- Grade designation and applicable material standard
- Section, finished dimensions and machining allowance
- Quantity, delivery condition and certificate requirements
Frequently asked questions
Can I request 1.4021 in cut lengths?+
Share your required section, dimensions and quantity. Our team will assess suitable supply and cutting options for the specific grade.
Are the listed grade designations interchangeable?+
Designation systems can overlap, but they do not make every specification identical. Use the exact standard and certificate requirements defined by your project.