PLASMADIAM - Vacuum Components

STAINLESS STEEL 1.4301 (AISI 304): Austenitic stainless steel. Very high cold formability. Easily weldable. High corrosion resistance. Polishable. Highly suited for vacuum applications. STAINLESS STEEL 1.4404 (AISI 316L): Highly weldable due to low carbon level, very insusceptible to intergranular corrosion. Highly suited for vacuum applications.

Other additives/ comments

Material number (AISI No.)

Cr (%)

Ni (%)

Mo (%)

C (%)

Si (%)

Mn (%)

P (%)

S (%)

Material abbreviation

1.4301 (304)

X5CrNi 18 10 15-20 8-19 *

0.1

1

2 0,05 0,015 * MO permissible

1.4404 (316L) X2CrNiMo 17-13-2 16-18.5 10-13 2-2.5 0,03 1

2 0,045 0,015

Coefficient of linear expansion in 10−6 K−1 bet. 20 °C and 300 °C

0.2% yield point at 300 °C in N/mm 2

Tensile- strength in N/mm 2

Max. operation temperature of air

Material number (AISI No.)

0.2% yield point at 20 °C in N/mm 2

Magneti- sability

Structure

1.4301 (304)

210-250

110

520-720

17

300

possible

Austenitic steel with small ferrite content.

less possible

1.4404 (316L)

220-260

118

530-680

17

400

NBR (NITRILE RUBBER): Temperature application range: -30°C to 110°C.

Increased media resistance to: hydraulics, pneumatics, petroleum, silicone oils and greases, water up to 80°C and air. Good helium-proofness final pressures up to 1.10 –6 mbar.

FKM (FLUOROCARBON RUBBER): Temperature application range: -20°C to 200°C.

Increased media resistance to: mineral oils and grease, aliphatic, aromatic and chlorinated hydrocarbons, petroleum, diesel, acids, alkaline solutions and silicone oils. Suitable for high vacuum1.10 –7 mbar. Age-resistant, goodmechanical properties.

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