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Lean Duplex 2101

2018-09-21 13:26

LDX 2101®, DUPLEX STEEL

UNS S32101

Forms of LDX 2101 Available at Haohua Industry?

Sheet
Plate
Bar
Welding Products

LDX2101 Overview

LDX 2101 is a low-alloyed, general purpose lean duplex stainless steel. It possesses properties such as high mechanical strength, similar to that of other duplex steels, and good corrosion resistance. Compared to 300 series stainless steels, 2101 duplex stainless provides superior strength and greater chloride stress corrosion cracking resistance.

The use of manganese ensures proper ferrite-austenite phase balance, while allowing a reduction in nickel content. As a result, LDX 2101 is priced competitively with 304L and 316L stainless steels. Due to its relatively low alloying content, it is less prone to precipitation of intermetallic phases than other duplex steels.

Corrosion Resistance

The corrosion resistance of LDX2101 is generally good, and therefore is suitable for use in a wide range of general-purpose applications and environments. Attributable to its duplex structure, LDX 2101 offers an excellent resistance to stress corrosion cracking. It also offers corrosion resistance comparable to 304L and 316L stainless steel, making it an excellent candidate to replace 300 series stainless in a wide variety of applications.

What are the characteristics of LDX 2101?

High resistance to chloride stress corrosion cracking
Chloride pitting and crevice corrosion resistance comparable to 316L stainless
Good general corrosion resistance
High strength
Good sulfide stress corrosion resistance
Good machinability and weldability

Chemical Composition, %

Cr	Ni	Mo	C	N	Mn
21.0-22.0	1.35-1.70	0.10-0.80	.040 Max	0.20-0.25	4.00-6.00
Si	P	S	Cu	Fe
1.00 Max	.040 Max	.030 Max	0.10-0.80	Balance

In what applications is LDX 2101 used?

Chemical process vessels, piping and heat exchangers
General purpose stainless steel applications
Storage Tanks
Water treatment
Pulp & Paper mill equipment
Water heater tanks

ASTM Specifications

Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet/Plate	Bar
A790	A790	A789	A789	A240	A276

Mechanical Properties

Specified Tensile Properties ASTM A240
Cold Rolled Plate and Sheet > ¼”

Alloy	Ultimate Tensile Strength, ksi Minimum	.2% Yield Strength, ksi Minimum	Elongation % Minimum	Hardness Brinell Maximum
LDX 2101	94	65	30	290
304/304L	75	30	40	201
316/316L	75	30	40	217
2205	95	65	25	293

Mechanical Properties

Specified Tensile Properties ASTM A240
Cold Rolled Plate and Sheet ≤ ¼”

Alloy	Ultimate Tensile Strength, ksi Minimum	.2% Yield Strength, ksi Minimum	Elongation % Minimum	Hardness Brinell Maximum
LDX 2101	101	77	30	290
304/304L	75	30	40	201
316/316L	75	30	40	217
2205	95	65	25	293

LDX2101® is a registered trademark of Outokumpu Stainless.

*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.