EN 10088-2 X2CrTi24 1.4613 Stainless Steel Plate

EN 10088-2 X2CrTi24 1.4613 stainless steel plate is a ferritic flat product supplied to EN 10088-2, the European standard for stainless steel sheet, plate and strip for general purposes. X2CrTi24 was added to the special grades in the 2014 edition and, like 1.4611, is marked as a patented steel grade. It has the highest chromium content of the titanium-stabilised, molybdenum-free ferritics in the standard: 22.0 – 25.0 %, with carbon limited to 0.030 % and titanium of 4 × (C + N) + 0.20 % up to 1.00 %. Molybdenum, nickel and copper are each held to 0.50 % or less. The high chromium is used to gain corrosion resistance without the cost of nickel or molybdenum. EN 10088-2 covers the grade as cold rolled strip and sheet up to 8 mm.

SHH STEEL works as a steel sourcing partner with long-term relationships with Chinese stainless mills that roll titanium-stabilised high-chromium ferritics. For large tonnages, the buyer can contract directly with a suitable mill, with SHH STEEL assisting for a modest service fee and handling follow-up and documents. For small orders we consolidate demand, so that 1 – 5 t lots are placed against genuine mill production instead of stock of unknown origin. Each shipment can be released after third-party inspection by TUV, ABS, BV, DNV, CCS or an agency the buyer nominates, and payment by TT or LC is accepted. The rest of this page covers the technical side of EN 10088-2 1.4613 and the steps we take so that the sheet that arrives is the sheet that was ordered.

The table below lists the concerns buyers raise most often when sourcing EN 10088-2 X2CrTi24 sheet and plate from China, and how SHH STEEL deals with each of them.

1.4613 is an EN 10088-2 grade with no counterpart of the same chemistry in ASTM A240, GB/T 4237 or JIS G 4305, although it is also listed, as a patented grade, in EN 10028-7:2016 for pressure purposes. Buyers outside Europe who see the grade on a drawing usually have to choose between ordering it by EN number or accepting a different, standardised high-chromium ferritic.

Because the related grades differ in copper or molybdenum, a heat certified to one cannot simply be relabelled as 1.4613. SHH STEEL checks the analysis against every standard named on the drawing before quoting.

The patent marking is important for sourcing. EN 10088-2:2014 names Acciai Speciali Terni in its foreword as the holder for 1.4613. Patent rights expire and differ by country, but a buyer should not assume that any mill can roll and certify the grade. SHH STEEL confirms with the mill, before quotation, that it can supply and certify X2CrTi24 1.4613 by name, and says so openly if only a related grade is available. In our experience this is one of the rarer grades in the standard.

Edition note: the values on this page are taken from EN 10088-2:2014. A revised edition (EN 10088-2:2024) has since been published. If your contract names the newer edition, SHH STEEL checks the order against that text before production, and any difference is raised at the quotation stage rather than after rolling.

The 1.4613 chemical composition below is the cast (heat) analysis from EN 10088-2:2014 Table 3. Values are percentages by mass; a single figure is a maximum.

As with 1.4611, the phosphorus and sulphur maxima are 0.050 %, and nitrogen enters the titanium formula without a separate limit. With 0.015 % carbon and 0.015 % nitrogen the titanium minimum would be 4 × 0.030 + 0.20 = 0.32 %. SHH STEEL checks chromium, titanium and the residual molybdenum, nickel and copper on every certificate as part of the 1.4613 chemical composition review.

Product analysis tolerances (EN 10088-2 Table 5)

A product analysis is a check made on the delivered sheet. It is not mandatory under EN 10088-2; it is carried out when agreed at the time of enquiry and order, and SHH STEEL can arrange it through a partner laboratory. The permissible tolerances on the cast limits are:

Where several product analyses are made on one cast, individual results may exceed the maximum or fall below the minimum, but not both for the same element. How a tolerance applies to the calculated titanium minimum should be confirmed in the contract if a product analysis is ordered.

The 1.4613 mechanical properties below are the room-temperature values for the annealed condition in EN 10088-2:2014 Table 9. Only the cold rolled product form is listed for this special grade.

Elongation is measured on an 80 mm gauge length below 3 mm thickness and on a proportional gauge length (5.65√S0) from 3 mm upwards. For bigger sizes the values are to be agreed at the time of enquiry and order. Table 9 records resistance to intergranular corrosion (tested to EN ISO 3651-2) as “yes” in both the delivery and the welded condition.

The values are the same as for EN 10088-2 1.4611 plate. In practice, higher chromium tends to make ferritic sheet somewhat less tough and less ductile, so bend and forming trials are worth making on the first lot. SHH STEEL can add hardness, bend or extra tensile tests on request.

Minimum 0.2 % proof strength at elevated temperature (EN 10088-2 Table 14, +A)

No value is given at 400 °C. With 22 – 25 % chromium, the grade is more sensitive to 475 °C embrittlement and to sigma phase than lower-chromium ferritics, so long service between about 400 °C and 550 °C, and long holds at higher temperatures, should be avoided.

X2CrTi24 plate and sheet are delivered in the annealed condition (+A). EN 10088-2 Table A.3 gives the guideline temperatures:

Annealing at 870 – 930 °C followed by rapid air or water cooling gives a soft, recrystallised structure. Rapid cooling through the intermediate temperature range is more important for this high-chromium grade than for 17 % chromium ferritics, because slow cooling can begin embrittlement. Titanium stabilisation means welds normally need no post-weld anneal.

As with all 17 % chromium and higher ferritics, long exposure around 400 – 550 °C can cause 475 °C embrittlement, prolonged exposure at higher temperatures can form sigma phase, and over-heating coarsens the grain. These effects are general knowledge for the grade family rather than EN 10088-2 requirements. The Annex A temperatures are guidelines; actual furnace settings are chosen by the mill, and we check that the annealed condition is stated on each certificate.

X2CrTi24 1.4613 is not included in the Euro Inox physical-property table we checked (Stainless Steel: Tables of Technical Properties, Materials and Applications Series, Volume 5), so the approximate figures below are bracketed by the entries that table gives for the titanium-stabilised ferritic 1.4509 and, where noted, the 29 % chromium 1.4592. They are suitable for design estimates and weight calculation; where a figure is critical, use EN 10088-1 or mill data.

These approximate figures are typical for high-chromium ferritics; EN 10088-1 values for this patented grade should be checked where they matter. The grade is magnetic, which suits induction heating but surprises users who expect non-magnetic stainless steel.

Corrosion resistance in molybdenum-free ferritics rises mainly with chromium, so 1.4613, with 22 – 25 % chromium, is intended for environments where 1.4611 or 1.4510 would be borderline but nickel and molybdenum are not wanted. Titanium stabilisation keeps welds resistant to intergranular corrosion, and as a ferritic the grade is practically immune to chloride stress corrosion cracking. Independent comparative data for this patented grade are limited, so corrosion performance should be confirmed with the mill or by testing for critical uses.

For chloride-bearing water, EN 10088-2 1.4521 plate with 2 % molybdenum is the established choice. For high-temperature oxidation in furnaces, a heat-resisting grade such as AISI 446 stainless steel plate or a grade to EN 10095 is usually specified. This guidance is general and not part of EN 10088-2.

Compared with ASTM A240 Type 304 sheet and plate, a 24 % chromium ferritic can match or exceed it in many atmospheric uses, but it has far lower ductility and toughness, so the comparison depends on the part as much as on the environment.

1.4613 can be welded by TIG, MIG, plasma, laser and resistance processes. The low carbon and titanium stabilisation limit carbide precipitation, but the high chromium level makes the weld zone more sensitive to grain growth and loss of toughness than in 17 % chromium grades.

• Keep heat input low and avoid slow cooling after welding.
• Use a stabilised ferritic filler of similar chromium level, or an austenitic filler such as 309L or 316L where toughness matters more than matching colour.
• Use argon shielding and backing; high-chromium ferritics pick up nitrogen and oxygen easily, which reduces toughness.
• Remove heat tint by pickling or brushing on visible and wetted surfaces.
• Make a weld procedure trial on the first lot, as published data for this grade are limited.

These points reflect industry practice for titanium-stabilised high-chromium ferritics rather than requirements of EN 10088-2, which does not specify welding procedures. In the SHH STEEL workshop, blanks and slit strips are cut with clean, burr-free edges so that seam, spot and tube welding run without edge preparation problems.

In the annealed condition 1.4613 ferritic sheet can be bent and pressed for panels and casings, but deep drawing should be avoided or trialled, and bending of thicker gauges is easier at a slightly warm temperature in cold weather. Springback is higher than for austenitic grades.

Machining is comparable to other stabilised ferritic grades and easier than for austenitic steels; the hard titanium or niobium carbonitrides that stabilise the steel can wear tools a little faster, so sharp tools and steady feeds are recommended. Punching and drilling of thin sheet is routine.

We run our own workshop next to the warehouse, so 1.4613 can be delivered as slit coil, cut-to-length sheets, laser-cut blanks or bent parts instead of raw mill sizes. Details are on our steel cutting services and bending and forming services pages. Protective film can be applied for visible or deep-drawn parts.

Because EN 10088-2 lists 1.4613 only as cold rolled strip and sheet, the supply range is thin gauge, and the sizes actually available depend on the mill that can roll the grade.

State the EN ISO 9445 thickness class, flatness and edge condition in the order. Because the grade is rare, standard mill sizes may be limited, and cutting to size in our workshop is often the practical route.

SHH STEEL can supply 1.4613 cold rolled sheet in available mill sizes or cut to your drawing, subject to mill confirmation of the grade. Hot rolled plate in this grade is not covered by EN 10088-2.

Surface finish is ordered by the process route symbols of EN 10088-2 Table 6; trade names from ASTM and JIS are shown for reference. Not every route is available for every grade, and the mill confirms which ones it can supply.

Smooth, clean surfaces give the best corrosion performance outdoors. Confirm which finishes the mill can supply for this grade before fixing the design, and SHH STEEL will apply PVC film on visible surfaces.

Searching for a 1.4613 equivalent mostly leads to related high-chromium ferritics. None of them has the same chemistry, so 1.4613 should be treated as having no exact equivalent.

As a 24Cr ferritic stainless steel, 1.4613 has no direct substitute in ASTM, GB or JIS. If a buyer needs certification to one of those standards, a related grade has to be chosen and approved by the designer. SHH STEEL will never relabel a related grade as 1.4613.

1.4613 vs 1.4611, 1.4510 and 1.4509

Compared with EN 10088-2 1.4611 plate, 1.4613 has about 3 % more chromium for more corrosion resistance with the same mechanical limits. Compared with EN 10088-2 1.4510 plate, it has about 6 % more chromium. Compared with EN 10088-2 1.4509 plate, it lacks niobium, so it is not the first choice for hot-end exhaust parts, where 1.4509 is established.

Applications for 1.4613 ferritic plate and sheet are still developing, and most uses below are typical for high-chromium, nickel-free ferritics rather than long-established markets for this exact grade:

• Outdoor architectural panels, roofing and cladding in urban environments
• Kitchen, catering and food-service equipment
• Hot water tanks and heating parts with moderate chloride levels
• Appliance parts that need more corrosion resistance than 21 % chromium grades
• Induction-compatible cookware and heating plates
• Trial replacement of austenitic grades where nickel cost is a concern

Where the part carries pressure, the order should name EN 10028-7, which also lists X2CrTi24 1.4613 as a patented grade. For hot-end exhaust or furnace parts, standardised heat-resisting grades are normally preferred.

Because experience with the grade is limited, SHH STEEL recommends a small trial lot with forming, welding and corrosion tests before committing a production design to 1.4613.

Most problems with 1.4613 come from its rarity and patented status, and from the temptation to substitute a more common high-chromium grade.

None of these steps is complicated, but they need to be agreed at the start. When you send an enquiry, tell us which of these points matters most to you, and the order will be built around it.

Every 1.4613 order is supported by documents and checks that make the material traceable to the heat:

• Cast analysis with chromium, titanium minimum and residual Mo, Ni and Cu checked
• Tensile test on the annealed sheet: Rp0.2, Rm and A
• Intergranular corrosion test to EN ISO 3651-2 when ordered
• Bend test on sheet or weld samples when agreed
• Additional checks through our third-party testing service: PMI, dimensional, flatness and surface inspection

If the order does not name an inspection document, EN 10088-2 requires only a test report 2.2. Because this is rarely enough for architectural or export work, SHH STEEL supplies an EN 10204 3.1 inspection certificate as standard and a 3.2 certificate when an independent inspector (TUV, ABS, BV, DNV, CCS or an agency you nominate) witnesses testing and countersigns the document.

Ordering example and lead time

Following the pattern of the example in EN 10088-2, a typical order line would read: 3 t cold rolled sheet, 1.2 mm × 1 250 mm × 2 500 mm, EN 10088-2, steel X2CrTi24 (1.4613), process route 2B, inspection certificate 3.1 to EN 10204. Mill production lead time is generally 30 – 40 days from order confirmation, depending on the rolling schedule, the size and the tests requested; because 1.4613 is a special, patented and rarely rolled grade, mill availability is confirmed for each enquiry and the schedule may be longer. Consolidated small lots follow the same mill schedule, and we send progress updates at rolling, testing and packing.

• Mill relationships: long-term cooperation with Chinese stainless mills helps us secure competitive pricing and steadier delivery for 1.4613 and related ferritic grades.
• Direct mill contracts: for larger tonnages you can contract directly with a suitable mill, for a modest service fee, while we handle follow-up and documents.
• Order consolidation: 1 – 5 t lots are combined so they can be placed against genuine mill production.
• Own workshop: slitting, cut-to-length, laser cutting, bending and protective film before shipment.
• Inspection and certificates: third-party inspection by TUV, ABS, BV, DNV, CCS or your nominated agency, with EN 10204 3.1 or 3.2 certificates.
• Flexible payment: TT, LC or a combination of both.
• Port logistics: coil and sheet are packed seaworthy with heat-number labels and shipped through our worldwide shipping service, together with other grades if needed.

As a 1.4613 plate supplier SHH STEEL also stocks and sources the wider range of stainless steel sheets and plates, so mixed orders of different stainless grades can travel in one container with one set of paperwork.

EN 10088-2 X2CrTi24 1.4613 is a titanium-stabilised 22 – 25 % chromium ferritic, the most highly alloyed molybdenum-free ferritic of its type in the standard, and a patented, rarely rolled grade. Choosing it is the easy part. Getting genuine material that matches the certificate, in the gauge and finish your parts need and on a predictable schedule, is where a sourcing partner earns its place, and that is the work SHH STEEL does every day through long-term mill cooperation, consolidation and its own workshop.

The next step is simple. Send SHH STEEL your drawing, or an enquiry with the quantity, thickness, width, finish and delivery destination, and we will judge whether a direct mill contract or consolidation with processing fits your order better, and quote accordingly. Send your sizes and quantities for a quotation.