EN 10088-2 1.4401 (X5CrNiMo17-12-2) Stainless Steel plate

what is EN 10088-2 1.4401 (X5CrNiMo17-12-2) Stainless Steel plate?

X5CrNiMo17-12-2 stainless steel plate is an austenitic stainless steel corresponding to the European standard grade 1.4401. Its chemical composition includes ≤0.08% carbon, 16.50–18.50% chromium, 10.00–13.00% nickel, and 2.00–2.50% molybdenum; additionally, its sulfur content is controlled at ≤0.030% to optimize processing characteristics specifically, maintaining the sulfur content between 0.015% and 0.030% enhances machinability. The material has a density of approximately 8 g/cm³. Commercially, it ranks second in importance only to 304 stainless steel; it offers superior corrosion resistance, with particularly outstanding resistance to pitting and crevice corrosion in chloride-containing environments.

 

If you are seeking 1.4401 stainless steel plates for chemical plants, coastal structures, or marine engineering projects, GNEE as a professional exporter of stainless steel plates offers products accompanied by EN 10204 3.1 certificates (Material Test Certificates) and compliant with PED (Pressure Equipment Directive) certification.

 

The 1.4401 (X5CrNiMo17-12-2) stainless steel plates we supply feature a molybdenum content exceeding 2.0% and are available with a variety of surface finishes. For thin plates, we provide 2B or BA finishes, ensuring they are free from scratches or mill scale. For thick plates, we offer the No. 1 industrial finish, characterized by excellent flatness to facilitate subsequent laser cutting and automated welding processes. Although the standard carbon content for 1.4401 is slightly higher than that of 1.4404, our products undergo rigorous corrosion resistance testing; under standard welding conditions, they effectively mitigate the risk of intergranular corrosion.

Delivery Condition

Plates: Solution-treated and pickled. Generally, delivery is made in the heat-treated condition, with the specific type of heat treatment specified in the contract; if not specified, delivery is made in the non-heat-treated condition.

 

DIN EN 1.4401 Chemical Composition

Chemical Composition, %
Steel Grade (Steel Number)	Standard	C, max	Si, max	Mn, max	P, max	S, max	Cr	Ni	Mo	N, max
X5CrNiMo17-12-2 (1.4401)	EN 10088-2; EN 10088-3	0,07	1,00	2,00	0,045	0,030	16,5-18,5	10,0-13,0	2,00-2,50	0,10

 

1.4401 Stainless Steel plate  Mechanical Properties

Thickness t mm	Heat Treatment / Condition	Tensile Strength σb / MPa	Yield Strength σs / MPa	Elongation after Fracture δ / %	Charpy Impact Energy KV2 / J
t ≤ 8; (Transverse)	Cold-rolled strip (C) + solution annealed	530~680	≥240 ②③	≥40 ②④⑤	-
t ≤ 13.5; (Transverse)	Hot-rolled strip (H) + solution annealed	530~680	≥220	≥40	≥60
t ≤ 75; (Transverse)	Hot-rolled medium & heavy plate (P) + solution annealed	520~670	≥220	≥45	≥60
t ≤ 13.5; (Longitudinal)	Hot-rolled strip (H) + solution annealed	-	-	-	≥100
t ≤ 75; (Longitudinal)	Hot-rolled medium & heavy plate (P) + solution annealed	-	-

 

Minimum Yield Strength of 1.4404 Stainless Steel Plate at High Temperatures

Steel Grade	Material No.	Heat Treatment Condition	Minimum 0.2% Proof Yield Strength (MPa) at Temperature (℃)
			100℃	150℃	200℃	250℃	300℃	350℃	400℃	450℃	500℃	550℃
X5CrNiMo17-12-2	1.4401	+AT (Annealed)	177	162	147	137	127	120	115	112	110	108

 

Hot Working and Heat Treatment Temperatures

Steel Grade	Material No.	Hot Forming		Heat Treatment Condition	Annealing
		Temperature °C	Cooling Type		Temperature °C	Cooling Type
X5CrNiMo17-12-2	1.4401	1150~850	Air Cooling	+AT (Annealed)	1030~1110	Water / Air Cooling

 

1.4401 Stainless Steel Plate Applications

In the chemical and petrochemical industries, it is utilized in the manufacture of chemical and petrochemical equipment, pipelines, storage tanks, heat exchangers, and chemical transport containers.
In the fields of marine engineering and shipbuilding, it is suitable for seawater treatment equipment, ship components, coastal architectural cladding, and railings.
In the food and pharmaceutical industries, it is widely employed in food processing equipment, brewing equipment, pharmaceutical machinery, laboratory benches and apparatus, ketchup processing vessels, and yeast fermentation tanks.

 

1.4401 / 1.4404 Stainless Steel Plate Manufacturer

GNEE maintains a standing inventory of over 5,000 tons of stainless steel. Equipped with heavy-duty automatic cut-to-length lines, we can precisely process hot-rolled coils into flat steel sheets of specified dimensions, with tolerances controlled to the millimeter level. In addition to standard specifications, we offer custom sizing based on specific client requirements, boasting an average monthly processing and delivery capacity exceeding 2,000 tons.

Click to access the 1.4401 / 1.4404 Stainless Steel Plate Inventory List

 

Stock Items: For 1.4401 stainless steel sheets in standard dimensions (e.g., 1000x2000mm, 1219x2438mm, 1500x6000mm), we can complete container loading within 3 to 7 business days of receiving an order.
Customized Orders: For orders involving special thicknesses, extra-wide or extra-long sheets, or specific mechanical property requirements, the lead time is typically maintained within 15 to 25 days.

 

Warranty Commitment: "Every sheet we supply comes with a complete EN 10204 3.1 certificate, allowing you to clearly view the actual measured values ​​for chromium, nickel, and molybdenum, thereby ensuring full compliance with European standards."

 

Standard Export Seaworthy Packing

**Base Protection:** We utilize sturdy wooden pallets (fumigated to comply with the international ISPM15 standard) or steel pallets.
**Waterproof Layer:** The material is wrapped in multiple layers of waterproof kraft paper and plastic film to prevent moisture damage or salt spray corrosion during sea transport.
**Surface Film Application Service:**
Upon client request, we can apply a single or double layer of PVC/PE protective film (such as white film, black-and-white film, or blue laser-protective film) to 2B or BA surface finishes, effectively preventing scratches during processing.