Acidur 4301 +AT

Nombres alternativos y comerciales
Acidur 4401, 1.4301, Type 304, F304, SUS304, X5CrNi18-10
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Description

1.4301 is the standard for the austenitic grades of stainless steel due to its good corrosion resistance, ease of formability and fabrication coupled with its aesthetic appearance in the polished, ground and brushed conditions. Since 1.4301 is not resistant to intergranular corrosion in the welded condition, 1.4307 should rather be specified if welding of larger sections is required and no solution annealing treatment after welding can be performed. Surface condition plays an important role in the corrosion resistance of this steel with polished surfaces exhibiting far superior corrosion resistance compared with rougher surfaces on the same material.

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.

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Propiedades

General

PropertyValue

Densidad

7.9 g/cm³

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Medidas

PropertyValueComment

Diámetro

250 mm

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max.

Mecánica

PropertyTemperatureValueComment

Charpy impact energy, V-notch

100 J

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Dureza Brinell

215 [-]

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Elongación

35 %

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A5 | Transverse

45 %

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A5

Límite elástico

20 °C

190 MPa

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RP02

23 °C

225 MPa

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RP1

100 °C

155 MPa

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RP02

100 °C

190 MPa

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RP1

150 °C

140 MPa

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RP02

150 °C

170 MPa

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RP1

200 °C

127 MPa

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RP02

200 °C

155 MPa

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RP1

250 °C

118 MPa

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RP02

250 °C

145 MPa

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RP1

300 °C

110 MPa

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RP02

300 °C

135 MPa

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RP1

350 °C

104 MPa

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RP02

350 °C

129 MPa

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RP1

400 °C

98 MPa

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RP02

400 °C

125 MPa

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RP1

450 °C

95 MPa

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RP02

450 °C

122 MPa

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RP1

500 °C

95 MPa

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RP02

500 °C

120 MPa

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RP1

550 °C

90 MPa

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RP02

550 °C

120 MPa

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RP1

Módulo elástico

20 °C

200 GPa

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100 °C

194 GPa

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200 °C

186 GPa

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300 °C

179 GPa

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400 °C

172 GPa

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500 °C

165 GPa

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Resistencia a la tracción

500 - 700 MPa

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Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

500 J/(kg·K)

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Coeficiente de dilatación térmica

100 °C

1.6e-05 1/K

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for 20°C to the mentioned temperature

200 °C

1.65e-05 1/K

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for 20°C to the mentioned temperature

300 °C

1.7e-05 1/K

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for 20°C to the mentioned temperature

400 °C

1.75e-05 1/K

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for 20°C to the mentioned temperature

500 °C

1.8e-05 1/K

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for 20°C to the mentioned temperature

Conductividad térmica

15 W/(m·K)

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Eléctrico

PropertyValue

Resistividad eléctrica

7.3e-07 Ω·m

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Chemical properties

PropertyValue

Azufre

0.03 %

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Carbono

0.07 %

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Cromo

17.5 - 19.5 %

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Fósforo

0.045 %

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Hierro

Balance

Manganeso

2 %

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Nitrógeno

0.1 %

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Níquel

8 - 10.5 %

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Silicona

1 %

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Technological properties

Property
Application areas

Automotive industry, Building and Construction industry, Chemical industry, Food and Beverage industry, Decorative items and Kitchen Utensils, Electronic Equipment, Petrochemical industry

Corrosion properties

Good - Due to the moderate carbon content of 1.4301, this grade of stainless steel is prone to sensitisation. The formation of chromium carbides and the associated chromium depleted regions that form around these precipitates make this grade of steel susceptible to intergranular corrosion. Although no danger of intergranular corrosion exists in the supplied (solution annealed) condition, intergranular corrosion may occur after welding or high temperature processing. 1.4301 is resistant to corrosion in most environments provided the chloride and salt concentrations are low. 1.4301 is not recommended for applications where it comes into contact with sea water, nor is it recommended for use in swimming pools. PRE = 17.5 – 21.36

General machinability

Average - For applications which require machining, the NIRO-CUT® 4301 grade is recommended since the composition and production route followed to produce this grade compensates for the work hardening tendency of the material.

Heat Treatment

Optimal material properties are realised after solution annealing in the temperature range 1000 °C – 1100 °C followed by rapid cooling in air or water. Since this grade of steel is susceptible to precipitation of chromium carbides, care must be taken to limit the time spent in the temperature range 450 °C to 850 °C, both during fabrication and service.

Hot forming

It is formable at 900-1200°C

Processing history

Solution Annealed

Welding

Excellent - 1.4301 is weldable with or without the use of filler material. If the use of a filler metal is required, then the use of Novonit® 4316 (AISI 308L) would be recommended. Maximum interpass temperature 200 °C. Post weld heat treatment is not necessary.