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ASTM A790 S31803 Duplex Steel Seamless Pipe Resistant To Seawater Corrosion

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ASTM A790 S31803 Duplex Steel Seamless Pipe Resistant To Seawater Corrosion

Brand Name : YUHONG

Model Number : ASTM A790 S31803

Certification : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015

Place of Origin : China

MOQ : 500KGS

Payment Terms : L/C, T/T

Supply Ability : According To Client's Request

Delivery Time : 10-90 Days

Packaging Details : Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Price : NEGOTIABLE

Standard : ASTM A790

Grade : UNS S31803

Material : Duplex Stainless Steel

Outside Diameter : 1/8"-48"

Wall Thickness : SCH5S to SCHXXS

Types : Seamless

End : BE/PE

Length : 6m, 12m, or as required

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ASTM A790 S31803 Duplex Steel Seamless Pipe

ASTM A790 S31803 is a specification for seamless duplex steel pipes. Duplex steel is a type of stainless steel that contains both austenitic and ferritic microstructures, providing excellent strength and corrosion resistance.

Seamless pipes are manufactured without any welding seams, which makes them more reliable and suitable for high-pressure and high-temperature applications.

These pipes are commonly used in industries such as oil and gas, chemical processing, and marine engineering. They are known for their superior performance in harsh environments and are highly resistant to corrosion, pitting, and cracking.

Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
2205 (UNS 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 (UNS 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

Mechanical Composition

Grade Tensile Strength
(MPa) min		 Yield Strength
0.2% Proof
(MPa) min		 Elongation
(% in 50mm) min		 Hardness
Rockwell C (HR C) Brinell (HB)
UNS S31803 / 2205 621 448 25 31 max 293 max

Physical Properties OF ASTM A790 UNS S31803 Duplex Stainless Steel Seamless Pipes

Grade Density
(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°C 0-315°C 0-538°C at 100°C at 500°C
UNS S31803 / 2205 782 190 13.7 14.2 - 19 - 418 850

Grade Specification Comparison

Grade UNS
No		 Old British Euronorm Swedish SS Japanese JIS
BS En No Name
2205 S31803 / S32205 318S13 - 1.4462 X2CrNiMoN22-5-3 2377 SUS 329J3L

ASTM A790 UNS S31803 Duplex Stainless Steel Seamless Pipes Application

1. Oil and gas industry
2. Chemical processing industry
3. Power generation industry
4. Water treatment industry
5. Marine industry
6. Food processing industry

ASTM A790 S31803 Duplex Steel Seamless Pipe Resistant To Seawater Corrosion


Product Tags:

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