Super Duplex S31803 Sheet

1. Standard: ASTM A240 / ASME SA240
2. Thickness: 0.5mm-50mm
3. Width: 1000-2500mm
4. Length: 1000-6000mm
5. Equivalent： Duplex 2205, UNS S32205, WNR.1.4462

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Product Introduction

Stainless steel 2205 s31803 plate supplier. Contact us to get free quote and sample!

2205 duplex stainless steel is named for its primary components: 22% chromium, 3% molybdenum, and 4.5-6.5% nickel-nitrogen alloy. Its comprehensive performance far surpasses that of traditional austenitic stainless steels (such as 304 and 316L), making it the material of choice for demanding environments such as energy, chemical, and marine engineering. HT PIPE is a astm a240 2205 plate supplier with 15+ export experience. Contact us for more information and quotes for free!

stainless steel 2205 material mechanical properties

Yield strength ≥ 450 MPa (more than double that of 316L), tensile strength reaches 650–900 MPa, and elongation remains constant at 25%–30%. This high strength allows equipment wall thickness to be reduced by 30%–50%, significantly reducing material usage and transportation costs.

Chemical composition of Duplex Steel 1.4462 Sheet

S31803 / S32205	C	N	P	Si	Mn	Mo	Fe	Cr	S	Ni
S31803 / S32205	1.0	0.03	0.02	2.0	3.0 - 3.5	22.0 - 23.0	0.03	4.5 - 6.5	0.14 - 0.2	Bal

Duplex Steel 2205 Plate Specification

Specification	ASTM A240 / ASME SA240 / NACE MR-0175
Sizes in Stock	1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, 2000 x 2000 mm, 2000 x 4000 mm Cold rolled Duplex 2205 Plate 0.5-6.4 mm Hot rolled Duplex 2205 Plate 3.0–10.0 mm
Thickness	0.1 to 100 mm Thk
Width	10-2500mm
Length	2m, 2.44m, 3m, or as required
Finish	2B, 2D, BA NO(8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled ASTM A240 Type 2205 Plate, 1D, 2B, No.4, BA, 8K, satin, hairline, brush, mirror etc.

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s32205 plate corrosion resistance

The high chromium and molybdenum content and nitrogen strengthening yield a pitting resistance equivalent (PREN) of 33–34, particularly outstanding in chloride-containing environments (such as seawater and chemical media). Its resistance to stress corrosion cracking addresses the failure challenges of austenitic stainless steel in chloride environments.

s31803 plate Optimized Thermal Properties

Low coefficient of thermal expansion (11–13 μm/m·K), high thermal conductivity (14–19 W/m·K), and minimal deformation under thermal cycling conditions make it suitable for temperature-sensitive equipment such as heat exchangers.

Application of duplex s32205 sheet

Oil and gas: submarine pipelines, downhole tools for acid gas wells.

Chemical equipment: sulfuric acid reactors, phosphoric acid evaporators, pickling equipment.

Nuclear industry: containers and pipelines for nuclear waste treatment systems.

Marine engineering: seawater desalination devices, heat exchangers.

Environmental protection: key components of flue gas desulfurization (FGD) systems.

s2205 steel plate Hot Forming Process

Hot working should be performed within the 1750°F–2250°F (approximately 954°C–1232°C) range, avoiding temperatures below 1700°F to prevent intermetallic phase precipitation and embrittlement. Rapid water quenching is required after forming to maintain phase equilibrium.

uns s32205 sheet Cold Working Challenges

High hardness results in higher cold forming springback than austenitic steel, requiring higher tonnage equipment and optimized tool design. When cutting, it is recommended to reduce cutting speeds by 20% (compared to 316L) and use carbide tools.

2205 sheet Welding Technologies

ER2209 wire/E2209 electrode is recommended; no preheating or post-weld heat treatment is required. However, the interpass temperature must be strictly controlled (below 300°F) to avoid precipitation of σ phase in the weld area and reduce toughness.

size of super duplex 2205 plate

Thickness (mm)	Length x width (mm)	Length x width (mm)	Length x width (mm)	Length x width (mm)	Length x width (mm)
5	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
6	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
8	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
10	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
12	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
15	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
16	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
20	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
25	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
30	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
35	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
40	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
45	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
50	4000 x 2000	6000 x 2000	6000 x 2500	6000 x 3000	8000 x 2000
60	4000 x 2000
70	4000 x 2000
80	4000 x 2000
90	4000 x 2000
100	4000 x 2000