1.4306

Data sheet material 1.4306 / AISI 304L

X2CrNi19-11

Austenitic corrosion-resistant stainless steel

Brief description

The material 1.4306 has a low carbon content, but also a relatively high proportion of chromium and nickel. This composition makes it a higher alloyed version of the material 1.4307. The material 1.4306 is therefore more resistant to corrosion than the 1.4307.

Standards and nomenclature

EN
DIN X2CrNi19-11
AISI 304L
US S30403
EN
DIN X2CrNi19-11
AISI 304L
US S30403

Chemical composition

C (carbon) - 0,03
Mn (manganese) - 2,0
Si (silicon) - 1,0
P (phosphorus) - 0,045
S (sulphur) - 0,015
Cr (chromium) 18,0 20,0
Ni (nickel) 10,0 12,0
N (nitrogen) - 0,1

-
-

min.

max.

C
(carbon)

-

0,03

Mn
(Manganese)

-

2,0

Si
(Silicon)

-

1,0

P
(phosphorus)

-

0,045

S
(sulphur)

-

0,015

Cr
(chrome)

18,0

20,0

Ni
(nickel)

10,0

12,0

N
(Nitrogen)

-

0,1

General
Properties

Corrosion resistance
Mechanical properties medium
Forgeability very good
Weldability excellent
Machinability bad

Special
Properties

Suitable for low temperatures
Can be used up to 600°C
Amagnetic quality
High cold formability

Corrosion
Consistency

In natural environmental media (water, rural/urban environment), 1.4306 exhibits good corrosion resistance, provided there is no salt content or chlorine concentration. Due to the low carbon content, this grade does not tend to form chromium carbides or the associated chromium-depleted zones. The material 1.4306 is significantly more resistant to intergranular corrosion than materials with a higher carbon content, such as 1.4301. (PREN = 18.6 - 20.8)

Mechanical properties
at 20°C

Hardness
HB

≤ 215

Yield point
Rp0,2
N / mm²

≥ 190

Tensile strength
Rm
N / mm²

460 - 680

Elongation
A5,65

≥ 45%

Forgeability

During the forging process, the material is first heated slowly to approx. 1150°C - 1180°C in order to forge in a temperature range of 1180°C - 950°C. The material is then cooled in air or water. This is followed by cooling in air or water.

Weldability

The material 1.4306 can be welded both with and without filler metal. However, optimum results are achieved with filler metal. Subsequent heat treatment is not necessary.

Markets & Applications

Automotive industry
Tank construction
Chemistry (especially for the production and storage of nitric acid)
Food processing industry
Mechanical engineering
Pharmacy

Physical properties
at 20°C

Density
kg/dm³

7,9

Electrical
Resistance
(ohm) mm²/m

0,73


Magnetisability
 

not available

Thermal conductivity
W/m K

15

Specific
Heat capacity
J/kg K

500

Processing

Cold forming
Cold heading Yes
Polishability Yes
Open-die and closed-die forging Yes
Machining Yes

Thermal treatment

Solution annealing
Solution annealing

Frequently asked questions

Important note

TEAM EDELSTAHL operates purely as a trading company without technical staff. As a result, we cannot and must not provide materials consulting.

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.