Malzeme 1.4021
Stainless steel
The material 1.4021 is a martensitic stainless steel.
Due to its high chromium content, the X20Cr13 achieves good
corrosion resistance in moderately aggressive and non-chlorinated media.
The Pren value is between 12 - 14.
X20Cr13 is suitable for use at temperatures up to 400 C° and can be
polished to a high gloss.
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Normen
| DIN / EN | US-Standard | AFNOR | UNI | JIS | istek |
|---|---|---|---|---|---|
| X20Cr13 | AISI 420 UNS S42000 | SUS420J1 SUS420J1FB SUS420J1TKA | istek |
Werkstoffgruppe: Stainless steel
Uygulamalar
Automotive industry
Cutlery industry
Power engineering
Petroleum industry
Petrochemical industry
Hydraulic industry
Mechanical engineering
Isıl İşlem
soft annealing 745 - 825 C° , slow furnace cooling, air
tempering :
Hardening 950 - 1050 C° air, polymer, oil
tempering (+QT 700) 650 - 750 C°
Tempering (+QT 800) 600 - 700 C°
Kaynaklanabilirlik
The material 1.4021 must be heated up to 100°C to 300°C before welding.
After welding, the workpiece must be cooled to a temperature below approx. 120°C before it is tempered at approx. 650°C. Tempering is necessary to ensure ductility. When welding under gas, gas containing hydrogen or nitrogen must not be used, as this has an unfavorable effect on the mechanical properties.
Kimyasal Bileşim
| C % | Si % | Mn % | P % | S % | Cr % |
| 0,16 - 0,25 | max 1,00 | max 1,50 | max 0,040 | max 0,015 | 12,00 - 14,00 |
Mekanik Özellikler
| geglüht | Zugfestigkeit (Rm) | Härte [HB 30] |
| <= 760 N/mm² | <= 230 HB 30 |
| gehärtet | Zugfestigkeit (Rm) | Härte [HB 30] | Härte [HRC] |
| ~ 1.570 N/mm² | ~ 450 HB 30 | ~ 47 HRC |
| vergütet | 0,2% Dehngrenze (Rp0,2) bei Temperatur | Zugfestigkeit (Rm) | Bruchdehnung (A 5, 65) | Einschnürung (Z) | Kerbschlagarbeit KV (ISO-V/Charpy-V) | Probenlage |
| <= 160 mm | >= 500 N/mm² | 700 - 850 N/mm² | >= 12 % | >= 50 % | >= 20 Joule | längs |
| <= 160 mm | >= 600 N/mm² | 800 - 950 N/mm² | >= 13 % | >= 50 % | >= 20 Joule | längs |
| >= 460 N/mm² / ~ 100 ° C | ||||||
| >= 515 N/mm² / ~ 100 ° C | ||||||
| >= 445 N/mm² / ~ 150 ° C | ||||||
| >= 495 N/mm² / ~ 150 ° C | ||||||
| >= 430 N/mm² / ~ 200 ° C | ||||||
| >= 475 N/mm² / ~ 200 ° C | ||||||
| >= 415 N/mm² / ~ 250 ° C | ||||||
| >= 460 N/mm² / ~ 250 ° C | ||||||
| >= 395 N/mm² / ~ 300 ° C | ||||||
| >= 440 N/mm² / ~ 300 ° C | ||||||
| >= 365 N/mm² / ~ 350 ° C | ||||||
| >= 405 N/mm² / ~ 350 ° C | ||||||
| >= 330 N/mm² / ~ 400 ° C | ||||||
| >= 355 N/mm² / ~ 400 ° C |
| angelassen bei 600 - 750 ° C | Zugfestigkeit (Rm) |
| 700 - 950 N/mm² |
Malzeme talebi