Products

X2CrNiMoN22-5-3 - Nr.1.4462

Marine

Food & Beverage

Chemical Industry

Marine Environment

Oil & Gas

Dual-Phase Duplex Stainless Steel for Offshore Use

A dual phase steel, it has a very high resistance to corrosion and is especially used in offshore platforms. With respect to AISI 329, it has a slightly lower chromium content and a greater quantity of molybdenum.

References and Comparable Standards

Standard Reference: EN 10088-3: 2014 (Hot-rolled and bright products)

EUROPE		ITALY	GERMANY		FRANCE	UK	USA
EN 10088-3: 2005		-	-		(NF A 35-574-90)	(BS 1501 pt.3 -90)
Grade	N°		Werkstoff	N°
X2CrNiMoN22-5-3	1.4462	-	-	-	Z3CND22-05AZ	318S13	S32205

Chemical Composition (Cast Analysis) (%)

C / max	Si / max	Mn / max	P / max	S / max	N	Cr	Mo	Ni
0,030	1,00	2,00	0,035	0,015	0,10÷0,22	21,0÷23,0	2,50÷3,5	4,5÷6,5

Mechanical Properties - Rough Turned (1X) In The Annealed Condition

Size (mm)	Hardness HB max* **	Rp 0,2 (MPa) min	Rm (MPa)**	A5 (%) min**	KV (J) min	Resistance to intergranular corrosion
Size (mm)	Hardness HB max* **	Rp 0,2 (MPa) min	Rm (MPa)**	A5 (%) min**	KV (J) min	in the delivery condition	in the welded condition
d≤100	270	450	650÷880	25	100	YES	YES
* Only for guidance. ** The maximum HB values may be raised by 100HB or the tensile strenght value may be raised by 200 MPa and the minimum A% value may be lowered to 20% for bars of ≤35 mm.

Mechanical Properties - Cold Drawn (2H, 2B) And Ground Bars (2G) In The Solution Annealed Condition

Size (mm)	Rp 0,2 (MPa) min	Rm (MPa)0	A5 (%) min*	KV (J) min
d≤10	650	850÷1150	12	-
10<d≤16	650	850÷1100	12	-
16<d≤40	450	650÷1000	15	100
40<d≤63	450	650÷1000	15	100
63<d≤100	450	650÷880	25	100
* Values valid only for size ≥5 mm.

Mechanical Properties - Bars, Wire And Coils For Cold Heading

Size (mm)	as Treated (+AT) or Peeled (+AT+PE)		Cold Drawn (+AT +C)		Cold Drawn + Solution annealed (+AT +C +AT)		Cold Drawn + Solution annealed + Skin passed (+AT +C +AT +LC)
Size (mm)	Rm (MPa) max	Z (%) min	Rm (MPa) max	Z (%) min	Rm (MPa) max	Z (%) min	Rm (MPa) max	Z (%) min
2≤d≤5	880	55	-	-	950	55	1010	50
5<d≤10	880	55	1020	-	900	55	970	50
10<d≤25	880	55	1000	-	880	55	-	-

Working Temperatures Recommended

Operation	°C
Hot forgings deformation	900÷1200
Solution annealing (water, air)	1020÷1100

Published: 01 January 2025 | Last Updated: 08 June 2026

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