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1.4961

Standards

Material No.
1.4961
EN Designation
X8CrNiNb16-13
AISI/SAE
347H
UNS
S34709

Description

AISI 347 H / 1.4961 is an austenitic chromium-nickel stainless steel with titanium addition.

Special properties

Good resistance to intergranular corrosion. Very good resistance to higher temperature.

Chemical Composition

C
%
0.04-0.10
Si
≤ %
0.30-0.60
Mn
≤ %
1.50
P
≤ %
0.035
S
≤ %
0.015
Cr
%
15.0-17.0
Ni
%
12.0-14.0
Ti
≤ %
10 x C

Mechanical Properties 20°C

0.2% Yield strength Rp
≥ N/mm²
205
Tensile strength Rm
N/mm²
510-690
Elongation A5
≥ %
35
Resistant on air up to
°C
750
Modulus of elasticity
kN/mm²
200

Physical Properties 20°C

Density
g/cm³
7.98
Specific heat capacity
J/kg K
450
Thermal conductivity
W/m K
16
Electrical resistivity
Ω mm²/m
0.78

Application

Components for thermal power plants

Available forms for 1.4961 / AISI 347 H

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