1.4435
Data sheet material 1.4435 / AISI 316L
X2CrNiMo18-14-3
Austenitic corrosion-resistant stainless steel
Brief description
The material 1.4435 is an austenitic steel that is resistant to many forms of corrosion. This grade is often used for medical devices and fittings due to its high polishability and the ability to achieve an excellent surface finish.
Standards and nomenclature
| EN | |
|---|---|
| DIN | X2CrNiMo18-14-3 |
| AISI | 316L |
| US | S31603 |
| EN | |
|---|---|
| DIN | X2CrNiMo18-14-3 |
| AISI | 316L |
| US | S31603 |
Chemical composition
| C (carbon) | - | 0,03 |
| Mn (manganese) | - | 2,0 |
| Si (silicon) | - | 1,0 |
| P (phosphorus) | - | 0,045 |
| S (sulphur) | - | 0,030 |
| Cr (chromium) | 17,0 | 19,0 |
| Ni (nickel) | 12,5 | 15,0 |
| Mo (molybdenum) | 2,5 | 3,0 |
| N (nitrogen) | - | 0,1 |
-
-
min.
max.
C
(carbon)
-
0,03
Mn
(Manganese)
-
2,0
Si
(Silicon)
-
1,0
P
(phosphorus)
-
0,045
S
(sulphur)
-
0,030
Cr
(chrome)
17,0
19,0
Ni
(nickel)
12,5
15,0
Mo
(Molybdenum)
2,5
3,0
N
(Nitrogen)
-
0,1
General properties
| Corrosion resistance | |
|---|---|
| Mechanical properties | medium |
| Forgeability | medium |
| Weldability | excellent |
| Machinability | medium |
Special properties
High-gloss polishable
Suitable for low temperatures
Can be used up to 500°C
Amagnetic quality
Corrosion resistance
In natural environmental media (water, rural and urban environments), in media with moderate chlorine and salt concentrations and in the food industry, material 1.4435 is characterised by excellent corrosion resistance. Due to its low carbon content, material 1.4435 is resistant to intergranular corrosion both as supplied and after welding. (PREN = 25.3 - 30.7)
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
Forgeability
During the forging process, the forging is first heated slowly to approx. 1150°C - 1180°C. Forging takes place in a temperature range of 1180°C - 950°C. This is followed by rapid air or water cooling. Corrosion resistance is reduced by scale or annealing colours. These should be removed by chloride-free chemical or mechanical processes.
Weldability
The material 1.4435 is easily weldable with and without filler metal. Heat treatment after welding is not necessary. The resistance to intergranular corrosion is not affected by welding.
Machinability
The material 1.4435 is characterised by its lower carbon content compared to 1.4401 ), grade 316L (1.4404) is easier to machine.
Markets & Applications
Apparatus and vessel construction
Automotive industry
Construction industry
Chemical and petrochemical industry
Decorative applications
Food industry
Aviation
Mechanical engineering
Pharmacy
Physical properties
at 20°C
Density
kg/dm³
8,0
Electrical
Resistance
(ohm) mm²/m
0,75
Magnetisability
low
Thermal conductivity
W/m K
15
Specific
Heat capacity
J/kg K
500
Processing
| Cold forming | |
|---|---|
| Cold heading | moderate |
| Polishability | Yes |
| Open-die and closed-die forging | Yes |
| Machining | Yes |
Thermal treatment
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1200 - 900°C (cooling: air) |
| Solution annealing (+AT) | |
|---|---|
| Hot forming | 1200 - 900°C (cooling: air) |
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.
