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Cold-Drawn Duplex Stainless Steel Pipe S31803 with Bright Surface and OD 6-630mm

Certification	ISO, AISI, ASTM
Minimum Order Quantity	50 kg
Price	US $4.15 / kg

Product Details

Model NO.	S31803	Shape	Round
Technique	Cold-Drawing	Surface Treatment	Bright
Specification	OD 6-630mm	Production Capacity	50000kgs
Max Temperature	600° F	Tensile Strength	90 Ksi (min)
Yield Strength	65 Ksi (min)	Elongation	25%
Hardness	217 HB MAX	Density	0.278 Lbm/in3
Electrical Resistivity	27.6 MWin	Thermal Conductivity	8.7 BTU/hrft°F
Heat Capacity	0.112 BTU/lbm°F
Highlight	Cold-Drawing Duplex Stainless Steel Pipe , Bright Surface S31803 Pipe , OD 6-630mm Stainless Steel Pipe

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Product Description

Duplex Stainless Steel Pipe S31803 Pipes

Duplex Steel 2205 Seamless Tube is a nitrogen-enhanced duplex stainless steel engineered to address common corrosion issues encountered with 300 series stainless steels. The term "duplex" refers to a family of stainless steels that combine characteristics of both austenitic and ferritic stainless steels. The microstructure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase, with approximately 40-50% ferrite in the annealed condition. As the workhorse grade in the duplex family, 2205 is the most widely used duplex stainless steel.

The duplex structure combines the beneficial properties of ferritic alloys (stress corrosion cracking resistance and high strength) with those of austenitic alloys (ease of fabrication and corrosion resistance). Note that 2205 Duplex stainless steel should be limited to temperatures below 600°F, as prolonged exposure to elevated temperatures can cause embrittlement.

Key Features of Duplex Steel 2205 Seamless Tube

High resistance to chloride stress corrosion cracking
Resistance to chloride pitting and crevice corrosion
Excellent general corrosion resistance
Superior sulphide stress corrosion resistance
High strength properties
Excellent weldability and workability

Applications of Duplex Steel 2205 Seamless Tube

Chemical process vessels, piping and heat exchangers
Pulp mill digesters, bleach washers, chip pre-steaming vessels
Food processing equipment
Oil field piping and heat exchangers
Vent gas desulfurization equipment

Chemical Composition of Duplex Steel 2205

Grade 2205 (S31803 & S32205)

Element	C	Mn	Si	P	S	Cr	Mo	Ni	N
S31803	0.03 max	2.0 max	1.0 max	0.03 max	0.02 max	21.0-23.0	2.5-3.5	4.5-6.5	0.08-0.20
S32205	0.03 max	2.0 max	1.0 max	0.03 max	0.02 max	22.0-23.0	3.0-3.5	4.5-6.5	0.14-0.20

Mechanical Properties of Duplex Steel 2205

Grade	Tensile Strength ksi (min)	Yield Strength 0.2% ksi (min)	Elongation %	Hardness (HB) MAX
2205	90	65	25	217

Physical Properties of Duplex Steel 2205

Temperature	Density lbm/in³	Electrical Resistivity mWin	Thermal Conductivity (BTU/hr·ft·°F)	Heat Capacity BTU/lbm·°F	Electrical Resistivity (in × 10⁻⁶)
at 68°F	0.278	27.6	8.7	0.112	33.5
at 212°F		26.1	9.2	0.119	35.4
at 392°F		25.4	9.8	0.127	37.4
at 572°F		24.9	10.4	0.134	39.4

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Cold-Drawn Duplex Stainless Steel Pipe S31803 with Bright Surface and OD 6-630mm

Cold-Drawing Duplex Stainless Steel Pipe

Bright Surface S31803 Pipe

OD 6-630mm Stainless Steel Pipe