Stainless Steel X2CrTi21
EN X2CrTi21
A low-interstitial, titanium-stabilized ferritic stainless steel with about 21% chromium, offering good corrosion resistance and formability with improved weldability due to Ti stabilization against intergranular corrosion.
Reference datasheet — X2CrTi21 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the Annealed condition
X2CrTi21 tempers and conditions
X2CrTi21 is supplied in 4 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As-welded deposit | Reference condition for welded tube and fabricated assemblies — Ti stabilization keeps corrosion resistance, but HAZ grain growth cuts toughness. | 290 | 470 | 20 | 165 HB | 2.9 % IACS |
AnnealedDefault Annealed (softened, 800–900 °C, air/water cooled) | Standard stocked condition for sheet, strip, plate and bar — best formability and corrosion resistance. | 300 | 480 | 28 | 170 HB | — |
Temper rolled 1/4 Hard | Use where extra stiffness/springback in flat parts is needed and forming demands are light. | 450 | 560 | 12 | 15 HRC | 2.8 % IACS |
Half hard | Niche strip condition for flat springs, clamps and roll-formed profiles that are not deep drawn. | 530 | 620 | 8 | 20 HRC | 2.9 % IACS |
Supply forms, finishes and certifications
Ways X2CrTi21 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
1D | Hot rolled, annealed, pickled | Surface finish |
2B | Cold rolled, annealed, pickled, skin-passed | Surface finish |
2D | Cold rolled, annealed, pickled | Surface finish |
BA | BA | Surface finish |
What is X2CrTi21?
A low-interstitial, titanium-stabilized ferritic stainless steel with about 21% chromium, offering good corrosion resistance and formability with improved weldability due to Ti stabilization against intergranular corrosion. X2CrTi21 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,450°C (2,642 °F). X2CrTi21 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 220 GPa (31.9 Msi).
What is X2CrTi21 used for?
- automotive exhaust and trim components
- architectural cladding
- kitchen equipment
- heat exchangers
- decorative sheet parts
Advantages
- Low embodied carbon — 2.9 kg CO₂/kg, better than 98% of stainless steel grades
- Easy to machine — 50/100, better than 90% of stainless steel grades
- High electrical conductivity — 2.9 % IACS, better than 87% of stainless steel grades
- High service temperature — 950°C (1,742 °F), better than 86% of stainless steel grades
- Forms and bends easily — 74/100, better than 86% of stainless steel grades
X2CrTi21 properties
Typical room-temperature values for X2CrTi21-Annealed; bars are the position among stainless steel grades.
Physical3
X2CrTi21 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,450°C (2,642 °F).
Mechanical14
X2CrTi21 has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 28% and the elastic modulus is 220 GPa (31.9 Msi).
Thermal6
X2CrTi21 is rated for continuous service to 950°C (1,742 °F). It conducts heat at 23 W/m·K (13.3 BTU/hr·ft·°F), better than 78% of stainless steel grades. Thermal expansion is 10.4 µm/m·K (5.78 µin/in·°F).
Electrical3
X2CrTi21 conducts electricity at 2.9 % IACS, better than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), worse than 62% of stainless steel grades.
Sustainability4
Producing a kilogram of X2CrTi21 takes about 40 MJ of energy and emits 2.9 kg of CO₂ — less than 97% of stainless steel grades. Typical recycled content is 70%.
Manufacturability7
X2CrTi21's machinability is fair (50/100, better than 90% of stainless steel grades); weldability very good (78/100); formability very good (74/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. X2CrTi21 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with X2CrTi21
Is X2CrTi21 easy to machine?
Machines like 430/439 — use sharp positive-rake carbide, rigid setups, heavy feeds and generous coolant to avoid work-hardened glazing; expect ~55 % of AISI 1212 rates.
Can X2CrTi21 be welded?
Excellent for GTAW/GMAW/laser/resistance welding without post-weld annealing thanks to Ti stabilization; keep heat input low and interpass < 150 °C to limit HAZ grain coarsening, use Ar (no N2) shielding and back purge.
Can X2CrTi21 be formed, bent or molded?
Good deep drawing and roll forming with low springback and no ridging when fine-grained; avoid severe stretch forming (lower n-value than austenitics) and warm the tooling for very deep draws.
X2CrTi21 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Clow-interstitial | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.4 |
| Mn | ≤ 1 | 0.4 |
| P | ≤ 0.04 | 0.03 |
| S | ≤ 0.02 | 0 |
| Cr | 20 – 22 | 21 |
| Tistabilizer, typically ≥ 4×(C+N)+0.15 | 0.15 – 0.8 | 0.35 |
| N | ≤ 0.03 | 0.02 |
| Niresidual | ≤ 0.5 | 0.2 |
| Fe | balance |
What surface finishes work on X2CrTi21?
Pickle and passivate after welding to restore the passive film; takes 2B/BA/No.4 mill finishes, buff polishing, electropolishing and PVD colour coatings — anodizing does not apply.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel X2CrTi21 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.4611
How much does X2CrTi21 cost?
X2CrTi21 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
X2CrTi21 — frequently asked
What is X2CrTi21 used for?
X2CrTi21 is typically used for automotive exhaust and trim components, architectural cladding, kitchen equipment, heat exchangers and decorative sheet parts. In short: ti-stabilized, weld-ready ferritic; good deep-drawing formability; lower-cost 304 substitute.
What is the yield strength of X2CrTi21?
X2CrTi21 has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is X2CrTi21 easy to machine?
Reasonably — machinability is rated fair (50/100, better than 90% of stainless steel grades). Machines like 430/439 — use sharp positive-rake carbide, rigid setups, heavy feeds and generous coolant to avoid work-hardened glazing; expect ~55 % of AISI 1212 rates.
Can X2CrTi21 be welded?
Yes — weldability is rated very good (78/100). Excellent for GTAW/GMAW/laser/resistance welding without post-weld annealing thanks to Ti stabilization; keep heat input low and interpass < 150 °C to limit HAZ grain coarsening, use Ar (no N2) shielding and back purge.
What surface finishes work on X2CrTi21?
Pickle and passivate after welding to restore the passive film; takes 2B/BA/No.4 mill finishes, buff polishing, electropolishing and PVD colour coatings — anodizing does not apply.
Can X2CrTi21 be formed, bent or molded?
Good deep drawing and roll forming with low springback and no ridging when fine-grained; avoid severe stretch forming (lower n-value than austenitics) and warm the tooling for very deep draws.
What is the maximum service temperature of X2CrTi21?
X2CrTi21 is rated for continuous use to about 950°C (1,742 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between X2CrTi21 Annealed and X2CrTi21-AW?
Annealed is the default condition — standard stocked condition for sheet, strip, plate and bar — best formability and corrosion resistance. AW: reference condition for welded tube and fabricated assemblies — Ti stabilization keeps corrosion resistance, but HAZ grain growth cuts toughness. Yield strength is 300 MPa in Annealed versus 290 MPa in AW.
How much does X2CrTi21 cost?
X2CrTi21 is a standard-cost stainless steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10088-1/-2 Stainless steels — list of grades and technical delivery conditions for sheet/plate/strip — CEN (2014)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
- Ti-stabilized 21Cr ferritic stainless (exhaust/appliance grade) datasheets — Outokumpu / Aperam / Baosteel (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.