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1.4439

Standards

Material No.
1.4439
EN Designation
X2CrNiMoN17-13-5
AISI/SAE
317 LMN
UNS
S32726

Description

1.4439 / AISI 317 LMN is an austenitic-ferritic chromium-nickel-molybdenum stainless steel.

Special properties

Resistant to chlorine concentrations.

Chemical Composition

C
%
≤ 0.030
Si
≤ %
1.00
Mn
≤ %
2.00
P
≤ %
0.045
S
≤ %
0.015
Cr
%
16.5-18.5
Mo
%
4.00-5.00
Ni
%
12.5-14.5
N
%
0.12-0.22

Mechanical Properties 20°C

Hardness HB 30
≤ HB
250
0.2% Yield strength Rp
≥ N/mm²
280
Tensile strength Rm
N/mm²
580-800
Elongation A5
≥ %
35/30
Modulus of elasticity
kN/mm²
200

Physical Properties 20°C

Density
g/cm³
8
Specific heat capacity
J/kg K
500
Thermal conductivity
W/m K
14
Electrical resistivity
Ω mm²/m
0.85

Suitable welding
filler materials

1.4440

Application

Chemical and petrochemical industry, cellulose industry

Available forms for 1.4439 / AISI 317 LMN

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