2205 Duplex Stainless Steel Seamless Pipe, 1.4462 X2CrNiMoN22-5-3 Tube

High yield strength, twice stronger than standard austenitic stainless steel
Outstanding resistance to pitting, crevice and stress corrosion cracking
Good toughness at low temperature and stable mechanical performance
Excellent anti-fatigue property for heavy-duty industrial service
Cost-effective alternative for harsh corrosive environments

Product Overview

Our 2205 Duplex Stainless Steel Seamless Pipe, also known as 1.4462, X2CrNiMoN22-5-3 and Chinese grade 022Cr22Ni5Mo3N, is a widely used duplex stainless steel consisting of austenite and ferrite phases. This seamless pipe is manufactured by hot piercing and cold drawing process without welding seam, eliminating welding defects. It combines high mechanical strength and superior corrosion resistance, suitable for offshore oil & gas, desalination, chemical processing, pulp and paper industry. We can customize outer diameter, wall thickness and length according to client requirements, with full material test certificates provided.

Stainless Steel Seamless Steel Pipe

Chemical & Mechanical Property Snapshot

Item	Value
Chemical Composition (wt%)
C	≤0.03
Si	≤1.00
Mn	≤2.00
P	≤0.030
S	≤0.020
Cr	21.00 – 23.00
Ni	4.50 – 6.50
Mo	2.50 – 3.50
N	0.08 – 0.20
Mechanical Property
Tensile Strength (Rm)	≥620 MPa
Yield Strength (Rp0.2)	≥450 MPa
Elongation (A)	≥25 %
Hardness (HB)	≤290

Detailed Technical Specifications

Specification Item	Details
Product Name	2205 Duplex Stainless Steel Seamless Pipe
Material Grade	2205 / 1.4462 / X2CrNiMoN22-5-3 / 022Cr22Ni5Mo3N
Production Process	Hot rolled / Cold drawn seamless
Outer Diameter	6mm – 630mm
Wall Thickness	1mm – 60mm
Length	Fixed length / Random length, custom available
Surface Finish	Pickled, polished
Standard	ASTM A790, EN 10216-5, GB/T 20878
Minimum Order Quantity	5 Tons
Production Lead Time	15-25 working days
Payment Term	T/T, L/C at sight
Certificate	MTC 3.1, EN 10204

Shape Section

Item	Shape Description	Notes
Primary Shape	Round / Circular Seamless Pipe	Most common form for stainless seamless pipe; stable OD & WT dimensional control; covers all grades (304, 304L, 316, 316L, 317L, 321, 309S, 310S, 2205, 2507, 904L)
Square Seamless Tube	Hollow square seamless profile	Cold-drawn seamless, no welding seam; suitable for structural and machinery applications
Rectangular Seamless Tube	Hollow rectangular seamless profile	Cold-drawn seamless, seamless construction; custom side dimensions available
Hexagonal Seamless Tube	Hexagonal hollow seamless bar / tube	Cold-drawn seamless; used for fittings and hydraulic parts
Octagonal Seamless Tube	Octagonal hollow seamless tube	Special custom cold-drawn seamless product; suitable for low-volume applications

Dimension Section

Item	Specification Details
Product Form	Stainless Steel Seamless Steel Pipe
Outer Diameter (OD) Range	6 mm–630 mm; Common stock OD: 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm, 38 mm, 42 mm, 48 mm, 57 mm, 60 mm, 76 mm, 89 mm, 102 mm, 114 mm, 168 mm, 219 mm, 273 mm, 325 mm
Wall Thickness (WT) Range	1.0 mm–40 mm; Common stock WT: 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 5.0 mm, 6.0 mm, 8.0 mm, 10 mm
Length	Fixed length: 3000 mm / 6000 mm / custom cut length; Random length: 4000–7000 mm
Tolerance	OD tolerance: ±0.1–±0.5 mm (depends on OD grade); Wall thickness tolerance: ±10%
End Type	Plain end / Beveled end
Surface Finish	Pickled / Bright annealed / Polished
Packaging	Wooden bundle / Wooden case

Product Comparison Table

AISI Grade	SUS Grade	EN Short Grade	EN Full Chemical Grade	GB Grade	Key Feature
304	SUS304	1.4301	X5CrNi18-10	06Cr19Ni10	General corrosion resistance, low strength
316L	SUS316L	1.4404	X2CrNiMo17-12-2	022Cr17Ni12Mo2	Better pitting resistance, austenitic
310S	SUS310S	1.4845	X12CrNi25-21	06Cr25Ni20	High temperature oxidation resistance
2205	–	1.4462	X2CrNiMoN22-5-3	022Cr22Ni5Mo3N	Duplex, high strength, excellent stress corrosion resistance
904L	–	1.4539	X1NiCrMoCu25-20-5	022Cr25Ni20Mo4CuN	Super austenitic, extreme corrosion resistance

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Power Plant FGD Pipeline

Chemical Acid and Alkali Corrosive Media Transportation

Desalination Pipeline

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is 2205 stainless steel equivalent grade?

2205 duplex steel equivalent grades are 1.4462, X2CrNiMoN22-5-3 and Chinese standard 022Cr22Ni5Mo3N.

What is the main advantage of 2205 seamless pipe vs 316L?

2205 duplex steel has around double yield strength than 316L, much better resistance to stress corrosion cracking in chloride environment.

What industries use 2205 seamless pipe?

Offshore platform, seawater desalination, chemical pipeline, paper mill, wastewater treatment.

Can you provide material test certificate?

Yes, MTC 3.1 certificate will be supplied together with shipment.

What is your MOQ for 2205 seamless pipe?

Minimum order quantity is 5 tons.

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2205 Duplex Stainless Steel Seamless Pipe, 1.4462 X2CrNiMoN22-5-3 Tube