1.4439
Data sheet material 1.4439 / AISI 317LMN
X2CrNiMoN17-13-5
Austenitic corrosion-resistant stainless steel
Brief description
The material 1.4439 or AISI 317LMN is an austenitic chromium-nickel-molybdenum steel. It is characterised by good corrosion resistance in numerous acids and excellent weldability.
Standards and nomenclature
| EN | |
|---|---|
| DIN | X2CrNiMoN17-13-5 |
| AISI | 317LMN |
| US | S31726 |
| EN | |
|---|---|
| DIN | X2CrNiMoN17-13-5 |
| AISI | 317LMN |
| US | S31726 |
Chemical composition
| C (carbon) | - | 0,03 |
| Mn (manganese) | - | 2,0 |
| Si (silicon) | - | 1,0 |
| P (phosphorus) | - | 0,045 |
| S (sulphur) | - | 0,015 |
| Cr (chromium) | 16,5 | 18,5 |
| Ni (nickel) | 12,5 | 14,5 |
| Mo (molybdenum) | 4,0 | 5,0 |
| N (nitrogen) | 0,12 | 0,22 |
-
-
min.
max.
C
(carbon)
-
0,03
Mn
(Manganese)
-
2,0
Si
(Silicon)
-
1,0
P
(phosphorus)
-
0,045
S
(sulphur)
-
0,015
Cr
(chrome)
16,5
18,5
Ni
(nickel)
12,5
14,5
Mo
(Molybdenum)
4,0
5,0
N
(Nitrogen)
0,12
0,22
Mechanical properties
at 20°C
Hardness
HB
≤ 250
Yield point
Rp0,2
N / mm²
≥ 280
Tensile strength
Rm
N / mm²
580 - 800
Elongation
A5,65
≥ 35%
Modulus of elasticity
kN / mm²
200
Markets & Applications
Apparatus and vessel construction
Chemical and petrochemical industry
Food industry
Paper industry
Pump industry
Pulp and textile industry
Physical properties
at 20°C
Density
kg/dm³
8,0
Electrical
Resistance
(ohm) mm²/m
0,75
Magnetisability
Very low
Thermal conductivity
W/m K
14
Specific
Heat capacity
J/kg K
500
Thermal treatment
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1120 - 900°C |
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1120 - 900°C |
Our
Delivery programme
Frequently asked questions
Important note
TEAM EDELSTAHL operates purely as a trading company without technical staff. Consequently, we are not authorised to provide material consulting services.
The above values and information on the properties and/or usability of the material are purely informative. This information is based on the experience of the manufacturer and TEAM EDELSTAHL. All information is without guarantee. Misprints, errors and changes excepted.
