ASME SA789 S31803 Duplex Steel Seamless Tube for Chemical Processing

• After-sales Service: Supplied
• Warranty: 30 Years
• Type: Seamless
• Technique: Cold Drawn
• Material: Stainless Steel
• Surface Treatment: Polished
• Model NO.: Duplex Steel Seamless Tube
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Material2: Austenitic Stainless Steel
• Material3: Super Duplex Steel
• Material4: Ferritic Stainless Steel
• Material5: Martensitic Stainless Steel
• Material6: Precipitation Hardened Stainless Steel
• Material7: Urea Grade Stainless Steel Pipe
• Applicaiton: Nuclear Power/Electric Power/Oil Refining
• Applicaiton2: Oil and Gas Exploitation
• Applicaiton3: Coal Chemical Industry
• Applicaiton4: Fine Chemical Industry/Natural Gas
• Applicaiton5: Offshore Engineering&Shipbuilding
• Applicaiton6: Sanitary Tubes/Instrumentation Tubing
• Applicaiton7: Seawater Desalination&Water Treatment
• Applicaiton8: Heat Exchanger/Radiator/Steam Boiler
• Applicaiton9: Metallurgy/Oil Exploitation
• Transport Package: Plywood Cases/Plastic Bags Bundled/U Tube Packing
• Specification: OD 6.35-168.3mm
• Trademark: EZS
• Origin: China
• HS Code: 730441
• Production Capacity: 200000 Tons/Year

Product Description

Product Description

Specification:	ASME SA789, ASTM A789	Grade:	S31803
Type:	Seamless, Welded, U-bend	Surface:	Pickled And Annealed, Polished, Bright Annealed
Non Destructive Test:	Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213	Size Standard:	ASTM B16.10 & B16.19 & Customized
High Light:	S31803 Duplex Steel Tube ,  Round Duplex Steel Tube ,  Seamless Duplex Stainless Steel Tubing

ASME SA789 S31803 Duplex Steel Seamless Tube For Chemical Processing

 

UNS 31803 (F51), UNS 32205 (F60) Alloy 2205, UNS S32550 (F61), UNS S 32750 (F53), Alloy 2507 and UNS 32760 (F55)

Standards: ASTM/ASME A789/SA789, A790/SA790, A450, A530

Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205, UNS S32750(1.4410), UNS S31500(Cr18NiMo3Si2), UNS32760(1.4501)

 

Chemical Composition

 

Grade	C max	Si max	Mn max	P max	S max	Cr	Ni	Mo	N
UNS S32750	0.030	0.8	1.2	0.030	0.015	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32
UNS S31803	0.030	1.0	2.0	0.020	0.020	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20
UNS S31500	0.030	1.0	1.2-2.0	0.030	0.030	18.0-19.0	4.5-5.5	2.5-3.5	0.05-0.10

 

Physical Properties

 

Grade	Y.S.MPa min	T.S.Mpa min	Elongation %	Hardness HRC
UNS S32750	550	800	15	20
UNS S31803	450	620	25	20
UNS S31500	440	630	30	20

 
Mechanical Properties
 

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	621	448	25	31 max	293 max

 
31803/32205 Equivalent grades
 

STANDARD	WERKSTOFF NR.	UNS
Alloy 2205 Pipe	1.4462 / 1.4462	S31803 / S32205

 
 

A789 specification covers standard requirements for grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.

 

Heat and product analyses shall be performed wherein the steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, nitrogen, copper, and others.

 

Applications

 
Chemical processing, Transport and Storage
Oil and gas exploration and offshore rigs
Oil and gas refining
Marine environments
Pollution control equipment
Pulp and paper manufacturing
Chemical process Plant