Acidur 4541 +AT

Nombres alternativos y comerciales
Acidur 4541, 1.4541, Type 321, Type 321H, SUS321, 08X18H10T, 12X18H10T, X6CrNiTi18-10
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Description

With Acidur 4541, the carbon is bound to the Carbide forming titanium. Therefore, this steel can be welded regardless of its thickness without the risk of intergranular corrosion. A post heat treatment is not necessary. Acidur 4541 shows high corrosion resistance and good cold formability. Due to this properties, this grade is widely used for welded parts in chemical apparatus engineering and used in the food industry. Beyond that, is Acidur 4541 according to the Pressure Equipment Directive 97/23 EG approved by up to 40°C.

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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Dureza Rockwell C

22 [-]

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Elongación

30 %

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A5 | Transverse

40 %

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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

175 MPa

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RP02

100 °C

205 MPa

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RP1

150 °C

165 MPa

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RP02

150 °C

190 MPa

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RP1

200 °C

155 MPa

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RP02

200 °C

185 MPa

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RP1

250 °C

145 MPa

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RP02

250 °C

175 MPa

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RP1

300 °C

136 MPa

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RP02

300 °C

167 MPa

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RP1

350 °C

130 MPa

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RP02

350 °C

161 MPa

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RP1

400 °C

125 MPa

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RP02

400 °C

156 MPa

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RP1

450 °C

121 MPa

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RP02

450 °C

152 MPa

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RP1

500 °C

119 MPa

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RP02

500 °C

149 MPa

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RP1

550 °C

118 MPa

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RP02

550 °C

147 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

PropertyValueComment

Azufre

0.03 %

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Carbono

0.08 %

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Cromo

17 - 19 %

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Fósforo

0.045 %

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Hierro

Balance

Manganeso

2 %

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Níquel

9 - 12 %

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Silicona

1 %

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Titanio

0.7 %

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min: 5xC

Technological properties

Property
Application areas

Automotive industry, Building and construction industry, Chemical industry, Food and beverage industry, Aviation and aerospace, Mechanical engineering

Corrosion properties

Good - 1.4541 displays excellent resistance to corrosion in most natural waters (rural and industrial), provided the chloride, salt and concentrations of hydrochloric and organic acids are low. Since this grade of stainless steel is still resistant to intergranular corrosion after welding, i.e. in the sensitised condition, corrosion testing in accordance with the following corrosion testing specifications, are sufficient to establish resistance to corrosion: AFNOR NF 05-159, ASTM A262-75. Practice E, DIN EN ISO 3651-2. (PREN = 17.0 – 19.0)

General machinability

Poor - The formation of titanium carbo-nitrides in 1.4541 alters the machinability of this stainless steel compared with the low carbon, titanium free variants, like 1.4307.

Heat Treatment

Solution annealing: 1020-1120°C (water, air) fast cooling

Hot forming

It is formable at 900-1200°C

Processing history

Solution Annealed

Welding

Excellent - 1.4541 is weldable with all processes, except gas welding, either with or without the use of filler material. If the use of a filler metal is required, then the use of Novonit 4316 or 4551 would be recommended. Post weld heat treatment is not necessary. Maximum inter-pass temperature 200°C. Any heat tint that forms must be removed by pickling or suitable mechanical process followed by passivating to restore corrosion resistance.