ALLOY 1.4162 / LEAN DUPLEX UNS S32101 / LDX 2101
MATERIAL DESCRIPTION
LDX 2101 is a low Ni-alloyed
duplex with balanced chemistry of chromium, molybdenum and nitrogen content to
achieve good resistance to localized and uniform corrosion. The duplex
microstructure contributes to the high strength and high resistance to stress
corrosion cracking. Duplex steels have good weldability. Due to risk of
embrittlement, LDX 2101 should not be used at temperatures above 250°C. Very
price stable high strength alloy.
LDX 2101 is a low-nickel,
nitrogen enhanced lean duplex stainless steel developed for general-purpose
use. The austenitic-ferritic (duplex) structure of the alloy is balanced to
approximately equal amounts of ferrite and austenite in the solution-annealed condition.
The high chromium and nitrogen
content of LDX 2101, combined with an addition of molybdenum, provide very good
resistance to localized and uniform corrosion. The duplex microstructure
contributes to the alloys high strength and resistance to chloride
stress-corrosion cracking. LDX 2101 possesses both superior strength and
greater chloride stress-corrosion cracking resistance than conventional 300
series stainless steels.
The corrosion resistance of LDX
2101 is generally good making it suitable for use in a wide variety of
applications. In most environments, it is superior to 304L stainless steel and
comparable to the molybdenum containing 316L stainless steel.
The enhanced mechanical strength
of LDX 2101 is far superior to conventional 300 series stainless steels
enabling it to be used in thinner cross-sections which can provide significant
cost savings to the end user.
LDX 2101 exhibits good abrasion
and erosion resistance and can be fabricated using standard shop practices
developed for duplex stainless steels.
APPLICATIONS
The main applications are for details with corrosion resistance better than 304L.
General corrosion is characterized as a uniform attack on a surface in contact with a corrosive medium. The resistance to uniform corrosion in sulfuric acid is shown below. LDX 2101 is superior to 304L and in some cases comparable to 316L.
LDX 2101 is characterized by:
• Ideal for tank production where
corrosion strength is sufficient.
• Good resistance to stress
corrosion cracking.
• Good resistance to general
corrosion.
• High mechanical strength.
• High resistance to erosion
corrosion and corrosion fatigue.
Heat Treatment
Solution annealing at 1020 – 1100°C followed by water quenching.
Weldability
Very good.
CHEMICAL COMPOSITION
|
Weight % |
C |
Si |
Mn |
S |
P |
Cr |
Ni |
Mo |
N |
Cu |
|
Min. |
4,00 |
21,00 |
1,35 |
0,1 |
0,20 |
0,10 |
||||
|
Max. |
0,040 |
1,00 |
6,00 |
0,015 |
0,035 |
22,00 |
1,90 |
0,8 |
0,25 |
0,80 |
Product Standards: EN
10088-2, EN 10088–4, ASTM A240, EN ISO 9445-2
Approvals: NACE MR0175/ ISO 15156-3:2015, PED 97/ 23/ EC, CPR 305/
2011/ EU
MECHANICAL PROPERTIES
|
Yield strength Rp0.2, |
Tensile strength Rm, |
Elongation |
Hardness |
Impact, Charpy-V, -40ºC |
Pre |
Surface |
|
|
PLATE CR (COIL) |
≥ 530 |
≥ 700 |
≥ 30 |
≥ 50 |
26 |
2B/2E |
|
|
PLATE HR (COIL) |
≥ 450 |
≥ 650 |
≥ 30 |
≤ 290 |
≥ 50 |
26 |
1D |
|
PLATE (QUARTO) |
≥ 450 |
≥ 650 |
≥ 30 |
≤ 290 |
≥ 27 |
26 |
1D |
Comments :
0 Comments to “Properties of LEAN DUPLEX UNS S32101 - ALLOY 1.4162 - LDX 2101”
Post a Comment
If you have any questions, concerns, or feedback about our website, our team is always here to assist you.