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

High Strength S31803 Duplex Steel Pipe for Chemical Industry , OD 6mm - 325mm

Specifications:

Main uses of S31803 stainless steel pipe:

Neutral chloride environment, refining industry, petrochemical and chemical industry, chemical industry, oil and gas industry, oil and gas industry, pulp and paper industry, fertilizer industry, urea industry, phosphate fertilizer industry, seawater environment, energy and environmental protection industries, light industry and food industry, food and pharmaceutical industry equipment, high strength structural parts

Technical Parameter for Duplex Steel Pipe	Tensile Strength	≥620Mpa
Yield Strength 0.2%	≥450Mpa
Elongation %	≥25
HRC	≤30.5
HB	≤290
PRE	32-33
Surface	Acid wash, annealing
Ends	Beveled and Caps
Packing	Woven bags or wooden cases	About 2ton for each bundle
Dimension	OD Size	6mm - 325mm
Thickness	1mm - 10mm
Length	5 - 5.8m, 6m,double random length
Certificate	ISO/SGS/BV/Lloyd/ABS/CCS/RINA/GL/DNV

 Description:

S31803 Duplex steel pipe chemical component

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.

This kind of steel has the characteristics of austenite and ferrite stainless steel, compared with ferrite, plasticity, toughness, no room temperature brittleness, intergranular corrosion resistance and welding properties are significantly improved, but also maintain a ferritic stainless steel 475 degrees brittleness and high thermal conductivity, has the characteristics of superplastic. Compared with austenitic stainless steel, high strength and intergranular corrosion resistance and resistance to chloride stress corrosion were significantly improved. Dual phase stainless steel with excellent corrosion resistance, is also a kind of nickel saving stainless steel.

Applications:

Used in industries as chemical engineering, petroleum, medicine, food, energy, nuclear power, aerospace, 

environmental protection, boiler, gas, war industry, machinery, ship building and so on. 

Competitive Advantage:

Our factory is near to raw material market and high-speed way,  the producing cost is low.

Our factory have long history for producing Duplex Steel Pipe, both producing and testing machine is 

advanced and perfect.

Our factory was certificated by BV/ISO/LR/RINA/CCS/GL/ABS/DNV, which can improve the quality.

We participated in many famous projects with our pipes. 

Duplex Steel Pipe