1.4401 / DIN X5CrNiMo17-12-2 – AISI 316
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
Nb |
Oth |
| 1.4401 |
≤0,07 |
≤1,00 |
≤2,00 |
0,045 |
0,030 |
16,5-18,5 |
2,00-2,50 |
10,0-13,0 |
- |
N≤0,11 |
|
AISI No
|
W-Nr-Standart
|
DIN
|
UK
|
USA-UNS
|
1AMS
|
|
316
|
1.4401
|
X5CrNiMo17-12-2
|
|
S31600
|
|
|
316L
|
1.4404
|
X2CrNiMo17-12-2
|
|
S31603
|
|
|
316Ti
|
1.4571
|
X6CrNiMoTi17-12-2
|
|
S31609
|
|
AISI 316/316L/316Ti
AISI 316 is the most known stainless steel after AISI 304. The biggest difference is that it contains Molybdenum. Molybdenum allows AISI 316 to withstand corrosive environments better than AISI 304. It is especially successful against cracks and pits on the surface and internal structure.
It has high shaping and welding ability. It is used for various purposes in sectors such as industrial, architectural, transportation. It does not require post-weld annealing in thin sections.
AISI 316L is the low carbon of AISI 316. Therefore, AISI 316L does not require post-weld annealing in thick sections.
AISI 316Ti contains a small amount of Titanium. Its rate is around 0.5%. The biggest advantage of this quality over the other two grades is its longer durability at high temperatures.
Grade (AISI) |
|
C
|
Mn
|
Si
|
P
|
S
|
Cr
|
Mo
|
Ni
|
N
|
|
316
|
Min
|
-
|
-
|
-
|
0
|
-
|
16.0
|
2.00
|
10.0
|
-
|
|
Max
|
0.08
|
2.0
|
0.75
|
0.045
|
0.03
|
18.0
|
3.00
|
14.0
|
0.10
|
|
316L
|
Min
|
-
|
-
|
-
|
-
|
-
|
16.0
|
2.00
|
10.0
|
-
|
|
Max
|
0.03
|
2.0
|
0.75
|
0.045
|
0.03
|
18.0
|
3.00
|
14.0
|
0.10
|
|
316Ti
|
Min
|
-
|
-
|
-
|
-
|
-
|
16.5
|
2.00
|
10.5
|
Ti
|
|
Max
|
0.08
|
2.0
|
0.75
|
0.045
|
0.03
|
18.5
|
3.00
|
14.5
|
0.50
|
CORROSION RESISTANCE: Under normal conditions, corrosion resistance is much better than AISI 304. In hot environments with acid content, it is likely that the material will form capillary cracks and pits in the internal structure, and when the temperature rises above 60 ° C, cracks due to stress may occur.
Resistant to 1000 mg / L chlorine at standard temperature tap water, 500 mg / L above 60 ° C.
HEAT RESISTANCE: AISI 316 has good oxidation resistance in environments with an intermittent temperature of 870 ° C and a constant temperature of 925 ° C. However, if the environment is watery and there is a temperature of 425-860 ° C, the corrosion resistance decreases. Since AISI 316L has low carbon, no carbide precipitation occurs in these environments.
HEAT TREATMENT: After the annealing process is heated between 1010 - 1120 ° C, it is cooled rapidly. It cannot be hardened by heat treatment.
WELDING: It shows excellent capability in all welding methods. For example; electrode, gas or wire etc. The most suitable electrode or wire quality to AISI 316 is AISI 316, and AISI 316L is AISI 316L. When AISI 316 thin sections are welded, post-welding does not require annealing, but it must be applied in thick sections. On the other hand, AISI 316L does not require post-weld annealing in thick sections. AISI 316Ti should be preferred instead of AISI 316 in thick section welds.
MECHANICAL PROPERTIES:
Grade (AISI) |
Tensile Strength
(MPa) min
|
Yield Strength
0.2% Proof
(MPa) min
|
Elongation
(% in 50mm) min
|
Hardness
|
|
Rockwell B (HR B) max
|
Brinell (HB) max
|
|
316
|
515
|
205
|
40
|
95
|
217
|
|
316L
|
485
|
170
|
40
|
95
|
217
|
|
316Ti
|
515
|
205
|
40
|
95
|
217
|
| Grade (AISI) |
Density
(kg/m3)
|
Elasticity Coefficient
(GPa)
|
Thermal Expension Coefficient (µm/m/°C)
|
Thermal Conductivity
(W/m.K)
|
Specific Heat 0-100°C
(J/kg.K)
|
Electric Resistance
(nΩ.m)
|
|
0-100°C
|
0-315°C
|
0-538°C
|
At 100°C
|
At 500°C
|
|
316/L/Ti
|
8000
|
193
|
15.9
|
16.2
|
17.5
|
16.3
|
21.5
|
500
|
740
|
USAGE AREAS:
- Food equipment with high acidic content
- Laboratory bench and equipment, medical devices
- Facades of architectural structures by the sea
- In boat and ship fasteners
- In chemical transport containers
- In heat exchangers
- Bolts, nuts, screws, etc.
The information given in this data sheet about the condition or availability of the material is not a guarantee for its properties, it only serves as an explanation. The information provided as advice is consistent with our own experience as well as general experience. No guarantee is given for the processing and application results of the products.