Product Details

Delivery Time:3-5 days
Certification:CE,FCC,MSDS

Heat Exchanger ASTM A789 Duplex Steel Pipe S31803 S32205 S32750 DSS Pipe

Specifications:

Dual phase stainless steel tube has good welding performance, compared with ferritic stainless steel and austenitic stainless steel, it is not like the welding heat affected zone of ferritic stainless steel, due to the serious grain coarsening and the toughness of the plastic is greatly reduced.

Because of its special advantages, duplex stainless steel has been widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil transportation pipeline, paper machinery and other industrial fields. In recent years, it has been used in the field of bridge bearing structure, which has good prospects for development.

Duplex stainless steel is in its solid quenched microstructure of the ferrite phase and austenitic phase of each half, generally at least phase content may be up to 30%.

Standard:	ASTM, AISI, DIN, EN, GB, JIS	Place of Origin:	China (Mainland)	Brand Name:	SISCO
Model Number:	TP304,TP304L,TP316,TP316L, TP321,TP347	Type:	Seamless, Seamless / SML	Application:	Heat exchanger,Oil & Chemical Industry,Mechanic Industry
Certification:	PED, ISO9001, ISO14001, DNV	Thickness:	0.7-50mm	Outer Diameter:	6-530mm
Name:	astm a789 pipe dupex s31803 s32205 s32750 stainless steel pipe	Brand:	LSI	Technique:	Cold finished
Heat Treatment:	Solution Annealing,Bright Annealing	Capacity:	6000 tons/year	Package:	In bundles, plywood cases, wooden cases with water-proof package, etc.
Ends:	PE/Plain Ends, BE/Beveled Ends	MOQ:	500kg	Nearest Port:	Shanghai, Ningbo

Description:

Due to the characteristics of the two-phase structure, the DSS has the advantages of ferritic stainless steel and austenitic stainless steel by properly controlling the chemical composition and the heat treatment process.

Duplex stainless steel, duplex stainless steel (DSS), refers to the ferrite and austenite each account for about 50%, general relatively less content also need at least 30% stainless steel. In the case of lower Cr content, C content in 18%~28%, Ni content in 3%~10%. Some steel also contains Mo, Cu, Nb, Ti, N and other alloy elements.

Name	seamless stainless steel pipe and tube
Brand	LSI
Standard	ASME SA213/ASTM A213,ASTM A269,ASME SA312/ASTM A312, ASME249/ASTM A249, ASME SA511/ASTM A511,ASTM A270/ASME SA270,EN10216-5, EN10305-1,EN10217-5, DIN 17175,DIN 2448,DIN 6258,GOST 8731,JIS G3463,JIS G3462 ,JIS G3455,JIS G3459 etc.
Material	TP304,TP304L,TP304H,TP304LN,TP314,TP316,TP316L, TP316LN,TP321,TP321H,TP310, TP310S,TP317,TP317L, TP347,TP347H,N08904, 253MA(S30815), 254SMO(S31254).
Type	Seamless/SML
O.D	6-530mm
W.T	0.7-50mm
Length	1000-38000mm
Technique	Cold Finished (Cold Drawing and Cold Rolling), Hot Finished (Hot Extrusion).
Ends	PE/Plain Ends, BE/Beveled Ends
Surface Treatment	Pickled,Passivation,Inside & Outside Mechanical Polishing, BA, Electropolishing (EP)
Heat Treatment Condition	Solution Annealing and water rapid quenched, Bright Annealing, Stess Relieving Heat Treatment for U tubes
Test Requirement	Eddy Current Test, Hydrostatic Test, UT,Penetrant Test,Air underwater pressure Test, PMI Test, Spectro Test,Intergranular Corrosion Test,Sharpy Impact Test, Hardness Test, Tension Test (Elongation,Yield Strength,Tensile Strength),Flarring Test etc.
Application	Gas and Fluid Transportation;Mechanical Pipline;Engineering Projects;