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CCS Classification Duplex Stainless Steel Plate S31803/ S32205 Uns S31803

CCS Classification Duplex Stainless Steel Plate S31803/ S32205 Uns S31803

Brand Name : BAO STEEL JISCO
Model Number : S31803 /S32205
Certification : SGS ISO MTC
Place of Origin : China
MOQ : 500KGS
Price : 4.15 USD/KG
Payment Terms : L/C, T/T
Supply Ability : 50000KGS
Delivery Time : 14 DAYS
Packaging Details : Wodden Pallet
Length : Customer's Request
Width : 1000mm/1219mm/1250mm/1500/1800/2000mm
Standard : ASTM DIN ASME
Grade : S31803 S32205
Type : 2205 duplex stainless steel
Application : Decoration
Thickness : 0.25-100mm
Technique : Hot Rolled duplex stainless steel plate/sheet/coil
Surface : BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D
Edge : slit/mill
Name : ASTM 2205 Super Duplex Stainless Steel Plate Price Per Kg
Item : 2205 duplex stainless steel sheet / 2205 stainless steel plate price
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Duplex Steel Plate Specifications

Duplex Steel UNS S31803/S32205 Sheets, Plates, Coils Specification
Specifications:
ASTM A240 / ASME SA240
Standard:
ASTM, ASME and API
Thickness:
4.0mm – 100mm, 1 MM TO 200 MM THK IN 1000 MM TO 3000 MM WIDTH x 2500 MM / 5000 MM / 10000 MM / COIL.,
Specialize:
Shim Sheet, Perforated Sheet, B. Q. Profile.
Form:
Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)
Finish:
Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Hardness:
Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Grade:
Duplex 2205(UNS S31803 / S32205), Super Duplex Plates S32760 / S32750

Super Duplex Stainless Steel – Alloy 2507 (UNS S32750 and UNS S32760) Specifications

  1. Super Duplex Plates, Sheet, Coil, and Strip: ASTM A240, ASME A 240
  2. Super Duplex Seamless Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
  3. Super Duplex Welded Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
  4. Super Duplex Bars, Rods, Wire: ASTM A 276 / 479, ASME SA 276 / 479
  5. Super Duplex Pipe Fittings & Flanges: ASTM A 815, ASME SA 815
  6. Super Duplex Forged Flanges: ASTM A182 Grade F55
  7. Super Duplex Forgings: ASTM A473
STAINLESS STEELTRADENAMEUNS NO.WERKSTOFF NO.DENSITY (G/CM3)
Super DuplexF55 / 2507, F53S32760 / S327501.4501 / 1.44107.805

Super Duplex – S32760 Grade Stainless Steel Chemical Composition, %

CRNIMOCWCU
24.0-26.06.0-8.03.0-4.00.030 Max0.5-1.00.50-1.0
NMNSIPSFE
0.2-0.31.00 Max1.0 Max0.03 Max0.01 MaxBalance

Super Duplex – S32750 / 2507 Grade Stainless Steel Chemical Composition, %

CRNIMOCNMN
24.0-26.06.0-8.03.0-5.00.030 Max.24-.321.20 Max
SiCuPSFe
0.80 Max0.50 Max0.035 Max0.020 MaxBalance

Physical & Mechanical Properties of Super Duplex 2507 Stainless Steel (UNS S32750 and UNS S32760)

SUPER DUPLEX STAINLESS STEEL
Density7.805
Melting Range,℃1350 ℃
Elongation %15 min.
Tensile Strength (Mpa)800
Yield Strngth (Mpa)550
Hardness (Brinell)270 max

ABOUT Duplex 2205 Stainless Steel

Duplex 2205 Stainless Steel Introduction
Duplex 2205 Stainless Steel Key Properties
Duplex 2205 Stainless Steel Composition
Duplex 2205 Stainless Steel Mechanical Properties
Duplex 2205 Stainless Steel Physical Properties
Duplex 2205 Stainless Steel Grade Specification Comparison
Duplex 2205 Stainless Steel Possible Alternative Grades
Duplex 2205 Stainless Steel Corrosion Resistance
Duplex 2205 Stainless Steel Heat Resistance
Duplex 2205 Stainless Steel Heat Treatment
Duplex 2205 Stainless Steel Welding
Duplex 2205 Stainless Steel Machining
Duplex 2205 Stainless Steel Fabrication
Duplex 2205 Stainless Steel Applications

Duplex 2205 Stainless Steel Chemical Composition

Fe, <0.03% C, 21-23% Cr, 4.5-6.5% Ni, 2.5-3.5% Mo, 0.8-2.0% N, <2% Mn, <1% Si, <0.03% P, <0.02% S

Duplex 2205 Stainless Steel Introduction

Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that

require good corrosion resistance and strength. The S31803 grade stainless steel has undergone

a number of modifications resulting in UNS S32205, and was endorsed in the year 1996.

This grade offers higher resistance to corrosion.

At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation,

and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition;

hence this grade of stainless steel is not suitable for use at these temperatures.

Duplex 2205 Stainless Steel Key Properties

The properties that are mentioned in the below tables pertain to flat rolled products such as plates,

sheets and coils of the ASTM A240 or A240M. These may not be uniform across other products

such as bars and pipes.

Duplex 2205 Stainless Steel Composition

Table 1 provides the compositional ranges for grade 2205 duplex stainless steel.

Table 1 - Composition ranges for 2205 grade stainless steels

GradeCMnSiPSCrMoNiN
2205 (S31803)

Min

Max

-

0.030

-

2.00

-

1.00

-

0.030

-

0.020

21.0

23.0

2.5

3.5

4.5

6.5

0.08

0.20

2205 (S32205)

Min

Max

-

0.030

-

2.00

-

1.00

-

0.030

-

0.020

22.0

23.0

3.0

3.5

4.5

6.5

0.14

0.20

Duplex 2205 Stainless Steel Mechanical Properties

The typical mechanical properties of grade 2205 stainless steels are listed in the table below.

Grade S31803 has similar mechanical properties to that of S32205.

Table 2 - Mechanical properties of 2205 grade stainless steels

GradeTensile Str
(MPa) min
Yield Strength
0.2% Proof
(MPa) min
Elongation
(% in 50mm) min
Hardness
Rockwell C (HR C)Brinell (HB)
22056214482531 max293 max

Duplex 2205 Stainless Steel Physical Properties

The physical properties of grade 2205 stainless steels are tabulated below. Grade S31803 has similar physical properties to that of S32205.

Table 3 – Physical properties of 2205 grade stainless steels

GradeDensity
(kg/m3)

Elastic
Modulus

(GPa)

Mean Co-eff of Thermal
Expansion (μm/m/°C)
Thermal
Conductivity (W/m.K)

Specific
Heat
0-100°C

( J/kg.K)

Electrical
Resistivity
(nΩ.m)
0-100°C0-315°C0-538°Cat 100°Cat 500°C
220578219013.714.2-19-418850

Duplex 2205 Stainless Steel Grade Specification Comparison

Table 4 provides the grade comparison for 2205 stainless steels. The values are a comparison of functionally similar materials. Exact equivalents may be obtained from the original specifications.

Table 4 - Grade specification comparisons for 2205 grade stainless steels

GradeUNS
No
Old BritishEuronorm

Swedish

SS

Japanese

JIS

BSEnNoName
2205S31803 / S32205318S13-1.4462X2CrNiMoN22-5-32377SUS 329J3L

Duplex 2205 Stainless Steel Possible Alternative Grades

Given below is a list of possible alternative grades, which may be chosen in place of 2205.

Table 5 - Grade specification comparisons for 2205 grade stainless steels

GradeReasons for choosing the grade
904LBetter formability is needed, with similar corrosion resistance and lower strength.
UR52N+High resistance to corrosion is required, e.g. resistance to higher temperature seawater.
6%MoHigher corrosion resistance is required, but with lower strength and better formability.
316LThe high corrosion resistance and strength of 2205 are not needed. 316L is lower cost.

Duplex 2205 Stainless Steel Corrosion Resistance

Grade 2205 stainless steel exhibits excellent corrosion resistance, much higher than that of grade 316. It resists localized corrosion types like intergranular, crevice and pitting. The CPT of this type of stainless steel is around 35°C. This grade is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150°C. Grade 2205 stainless steels are apt replacements to austenitic grades, especially in premature failure environments and marine environments.

Duplex 2205 Stainless Steel Heat Resistance

The high oxidation resistance property of Grade 2205 is marred by its embrittlement above 300°C. This embrittlement can be modified by a full solution annealing treatment. This grade performs well at temperatures below 300°C.

Duplex 2205 Stainless Steel Heat Treatment

The best suited heat treatment for this grade is solution treatment (annealing), between 1020 - 1100°C, followed by rapid cooling. Grade 2205 can be work hardened but cannot be hardened by thermal methods.

Duplex 2205 Stainless Steel Welding

Most standard welding methods suit this grade, except welding without filler metals, which results in excess ferrite. AS 1554.6 pre-qualifies welding for 2205 with 2209 rods or electrodes so that the deposited metal has the right balanced duplex structure.

Adding nitrogen to the shielding gas ensures that adequate austenite is added to the structure. The heat input must be maintained at a low level, and the use of pre or post heat must be avoided. The co-efficient of thermal expansion for this grade is low; hence the distortion and stresses are lesser than that in austenite grades.

Duplex 2205 Stainless Steel Machining

The machinability of this grade is low due to its high strength. The cutting speeds are almost 20% lower than that of grade 304.

Duplex 2205 Stainless Steel Fabrication

The fabrication of this grade is also affected by its strength. Bending and forming of this grade requires equipment with larger capacity. Ductility of grade 2205 is lesser than austenitic grades; therefore, cold heading is not possible on this grade. In order to carry out cold heading operations on this grade, intermediate annealing should be carried out.

Duplex 2205 Stainless Steel Applications

Some of the typical applications of duplex steel grade 2205 are listed below:

  • Oil and gas exploration
  • Processing equipment
  • Transport, storage and chemical processing
  • High chloride and marine environments
  • Paper machines, liquor tanks, pulp and paper digesters

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