Corrodur 4021 QT800

Nombres alternativos y comerciales
Corrodur 4021, X20Cr13, 1.4021, 420, SUS 420J1, 20X133
Want to keep this datasheet? Save it now in your required format

Description

1.4021 (X20Cr13) is used in the quenched and tempered condition in a host of constructional and fastener applications where moderate corrosion resistance is required. The knife blade variant of 1.4021 can be polished to high gloss finishes. Optimal corrosion resistance is also attained when the surface is finely ground or polished.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por Deutsche Edelstahlwerke Specialty Steel (DEW).

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

Propiedades

General

PropertyValue

Densidad

7.7 g/cm³

Show Supplier Material materials with Densidad of 7.7 g/cm³

Medidas

PropertyValueComment

Diámetro

160 mm

Show Supplier Material materials with Diámetro of 160 mm

max.

Mecánica

PropertyTemperatureValueComment

Charpy impact energy, V-notch

20 J

Show Supplier Material materials with Charpy impact energy, V-notch of 20 J

Dureza Brinell

230 [-]

Show Supplier Material materials with Dureza Brinell of 230 [-]

annealed

Elongación

12 %

Show Supplier Material materials with Elongación of 12 %

A5

Límite elástico

20 °C

600 MPa

Show Supplier Material materials with Límite elástico of 600 MPa

RP02

100 °C

515 MPa

Show Supplier Material materials with Límite elástico of 515 MPa

RP02

150 °C

495 MPa

Show Supplier Material materials with Límite elástico of 495 MPa

RP02

200 °C

475 MPa

Show Supplier Material materials with Límite elástico of 475 MPa

RP02

250 °C

460 MPa

Show Supplier Material materials with Límite elástico of 460 MPa

RP02

300 °C

440 MPa

Show Supplier Material materials with Límite elástico of 440 MPa

RP02

350 °C

405 MPa

Show Supplier Material materials with Límite elástico of 405 MPa

RP02

400 °C

355 MPa

Show Supplier Material materials with Límite elástico of 355 MPa

RP02

Módulo elástico

20 °C

215 GPa

Show Supplier Material materials with Módulo elástico of 215 GPa

100 °C

212 GPa

Show Supplier Material materials with Módulo elástico of 212 GPa

200 °C

205 GPa

Show Supplier Material materials with Módulo elástico of 205 GPa

300 °C

200 GPa

Show Supplier Material materials with Módulo elástico of 200 GPa

400 °C

190 GPa

Show Supplier Material materials with Módulo elástico of 190 GPa

Resistencia a la tracción

800 - 950 MPa

Show Supplier Material materials with Resistencia a la tracción of 800 - 950 MPa

Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

460 J/(kg·K)

Show Supplier Material materials with Calor específico of 460 J/(kg·K)

Coeficiente de dilatación térmica

100 °C

1.05e-05 1/K

Show Supplier Material materials with Coeficiente de dilatación térmica of 1.05e-05 1/K

for 20°C to the mentioned temperature

200 °C

1.1e-05 1/K

Show Supplier Material materials with Coeficiente de dilatación térmica of 1.1e-05 1/K

for 20°C to the mentioned temperature

300 °C

1.15e-05 1/K

Show Supplier Material materials with Coeficiente de dilatación térmica of 1.15e-05 1/K

for 20°C to the mentioned temperature

400 °C

1.2e-05 1/K

Show Supplier Material materials with Coeficiente de dilatación térmica of 1.2e-05 1/K

for 20°C to the mentioned temperature

Conductividad térmica

30 W/(m·K)

Show Supplier Material materials with Conductividad térmica of 30 W/(m·K)

Eléctrico

PropertyValue

Resistividad eléctrica

6e-07 Ω·m

Show Supplier Material materials with Resistividad eléctrica of 6e-07 Ω·m

Chemical properties

PropertyValue

Azufre

0.01 - 0.03 %

Show Supplier Material materials with Azufre of 0.01 - 0.03 %

Carbono

0.16 - 0.25 %

Show Supplier Material materials with Carbono of 0.16 - 0.25 %

Cromo

12 - 14 %

Show Supplier Material materials with Cromo of 12 - 14 %

Fósforo

0.04 %

Show Supplier Material materials with Fósforo of 0.04 %

Hierro

Balance

Manganeso

1 %

Show Supplier Material materials with Manganeso of 1 %

Molibdeno

0.5 %

Show Supplier Material materials with Molibdeno of 0.5 %

Níquel

0.5 %

Show Supplier Material materials with Níquel of 0.5 %

Silicona

1 %

Show Supplier Material materials with Silicona of 1 %

Technological properties

Property
Application areas

Automotive industry, Decorative Applications, Hydraulic Equipment, Petrochemical industry, Food and Beverage industry, Mechanical engineering, Cutlery, Blades

Corrosion properties

Average - Good corrosion resistance in moderately corrosive environments that are free of chlorides, such as soaps, detergents and organic acids. Good resistance in oxidising atmospheres up to temperatures of about 600 °C. 1.4021 is not resistant to intergranular corrosion in the asdelivered or as-welded conditions. PRE = 12.0 – 14.0

General machinability

Good - The machinability of this grade of stainless steel is directly related to its hardness. 1.4021 machines similar to carbon steels of the same hardness. Although it must be realised that the machining parameters will vary depending on the structure/hardness of the steel.

Heat Treatment

Soft annealing: 745-825°C (Cooling in furnace, air) - Hardening: 950-1050°C and quenching in air, polymer, oil - Tempering: 600-700°C

Hot forming

It is formable at 800-1100°C

Processing history

Quenched and tempered, QT 800

Welding

Good - Preheating of the work piece to a temperature within the range 100 °C – 300 °C is required as well as a post weld tempering treatment when welding is performed using a matching filler material. Generally, Novonit® 4551 is recommended when a filler material is required. Tempering at 650 °C after welding is recommended to restore some of the ductility in the weld zone. When using an inert or protective shielding gas during welding, care must be taken to avoid use of any hydrogen or nitrogen containing gases since contamination of the weld with nitrogen or hydrogen will adversely affect the mechanical properties. After welding the work piece must be cooled to below the martensite start (MS), temperature of approximately 120 °C before being tempered.