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1.4878

Standards

Material No.
1.4878
EN Designation
X8CrNiTi18-10
AISI/SAE
321 H
UNS
S32109

Description

AISI 321 H / 1.4878 is an austenitic heat resistant stainless steel.

Special properties

Middle resistance to carburized gases. Low resistance to oxidized and reduced sulphuric gases.

Chemical Composition

C
%
≤ 0.10
Si
≤ %
1.00
Mn
≤ %
2.00
P
≤ %
0.045
S
≤ %
0.015
Cr
%
17.0-19.0
Ni
%
9.00-12.0
Ti
≤ %
5 x C

Mechanical Properties 20°C

Hardness HB 30
≤ HB
215
0.2% Yield strength Rp
≥ N/mm²
190
Tensile strength Rm
N/mm²
500-720
Elongation A5
≥ %
40
Resistant on air up to
°C
850
Modulus of elasticity
kN/mm²
200

Physical Properties 20°C

Density
g/cm³
7.9
Specific heat capacity
J/kg K
500
Thermal conductivity
W/m K
15
Electrical resistivity
Ω mm²/m
0.73

Suitable welding
filler materials

1.4551; 1.4829

Application

Furnace and apparatus engineering

Available forms for 1.4878 / AISI 321 H

Sheets/Plates
Lieferform
Bars
Lieferform
Tubes/Pipes
Lieferform
Fittings
Lieferform
Forged / cast parts
Lieferform
Finished part (drawing)
Lieferform