1.4438
Data sheet material 1.4438 / AISI 317L
X2CrNiMo18-15-4
Austenitic corrosion-resistant stainless steel
Brief description
The material 1.4438 has a higher corrosion resistance than the comparable material 1.4435/316L.
Standards and nomenclature
| EN | |
|---|---|
| DIN | X2CrNiMo18-15-4 |
| AISI | 317L |
| US | S31703 |
| EN | |
|---|---|
| DIN | X2CrNiMo18-15-4 |
| AISI | 317L |
| US | S31703 |
Chemical composition
| C (carbon) | - | 0,03 |
| Mn (manganese) | - | 2,0 |
| Si (silicon) | - | 1,0 |
| P (phosphorus) | - | 0,045 |
| S (sulphur) | - | 0,015 |
| Cr (chromium) | 17,5 | 19,5 |
| Ni (nickel) | 13,0 | 16,0 |
| Mo (molybdenum) | 3,0 | 4,0 |
| N (nitrogen) | - | 0,11 |
-
-
min.
max.
C
(carbon)
-
0,03
Mn
(Manganese)
-
2,0
Si
(Silicon)
-
1,0
P
(phosphorus)
-
0,045
S
(sulphur)
-
0,015
Cr
(chrome)
17,5
19,5
Ni
(nickel)
13,0
16,0
Mo
(Molybdenum)
3,0
4,0
N
(Nitrogen)
-
0,11
Mechanical properties
at 20°C
Hardness
HB
≤ 215
Yield point
Rp0,2
N / mm²
≥ 200
Tensile strength
Rm
N / mm²
500 - 700
Elongation
A5,65
≥ 40%
Modulus of elasticity
kN / mm²
200
Markets & Applications
Apparatus and vessel construction
Construction industry
Chemical and petrochemical industry
Food industry
Aviation
Mechanical engineering
Pharmacy
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
15
Specific
Heat capacity
J/kg K
500
Thermal treatment
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1150 - 850°C |
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1150 - 850°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.
