Stainless Steel 15Cr25Ti CR-Annealed
Finish state
GB 15Cr25Ti
Thin sheet and strip for furnace liners, muffles and burner shrouds where surface finish and formability matter.
Values for the CR-Annealed condition
Other 15Cr25Ti tempers and conditions
15Cr25Ti is listed in 5 conditions; see the grade overview at 15Cr25Ti.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Stress relieved | Post-weld treatment to restore HAZ ductility and avoid 475 °C / sigma-phase embrittlement in fabricated vessels. | 295 | 510 | 20 | 175 HB | 2.6 % IACS |
AnnealedDefault 760–830 °C, rapid air/water cool | Standard stocked condition for plate, bar and tube; best ductility and IGC resistance before service. | 300 | 520 | 22 | 180 HB | — |
CR-AnnealedThis page Cold Rolled + Annealed and Pickled (2B/2D sheet & strip) | Thin sheet and strip for furnace liners, muffles and burner shrouds where surface finish and formability matter. | 320 | 530 | 23 | 185 HB | 2.6 % IACS |
Hot rolled | As-hot-rolled heavy plate and bar where the part will be annealed or put straight into high-temperature service. | 360 | 560 | 18 | 14 HRC | 2.6 % IACS |
Cold drawn | Higher strength and better size tolerance for machined fittings, bolting and furnace hardware in small diameters. | 500 | 640 | 12 | 225 HB | — |
What is 15Cr25Ti CR-Annealed?
15Cr25Ti CR-Annealed is 15Cr25Ti supplied in the CR-Annealed condition — thin sheet and strip for furnace liners, muffles and burner shrouds where surface finish and formability matter. 15Cr25Ti CR-Annealed has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 530 MPa (76.9 ksi) — weaker than 60% of stainless steel grades. Elongation at break is 23% and the elastic modulus is 200 GPa (29 Msi). 15Cr25Ti CR-Annealed has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,425°C (2,597 °F). Annealed is the default condition FabDigit quotes; CR-Annealed is available on request or by drawing note.
Advantages
- High service temperature — 1,050°C (1,922 °F), better than 91% of stainless steel grades
- Easy to machine — 45/100, better than 84% of stainless steel grades
- High electrical conductivity — 2.6 % IACS, better than 77% of stainless steel grades
- Conducts heat well — 21 W/m·K (12.1 BTU/hr·ft·°F), better than 76% of stainless steel grades
Limitations
- Low fracture toughness — 45 MPa·√m (41 ksi·√in), worse than 95% of stainless steel grades
- Hard to polish — 58/100, worse than 85% of stainless steel grades
- Difficult to weld — 40/100, worse than 83% of stainless steel grades
15Cr25Ti CR-Annealed properties
Typical room-temperature values for 15Cr25Ti CR-Annealed; 23 are specific to this condition. Other listed values are 15Cr25Ti reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
15Cr25Ti CR-Annealed has a density of 7.6 g/cm³ (0.275 lb/in³), lighter than 98% of stainless steel grades. It melts at 1,425°C (2,597 °F).
Mechanical15
15Cr25Ti CR-Annealed has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 530 MPa (76.9 ksi) — weaker than 60% of stainless steel grades. Elongation at break is 23% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
15Cr25Ti CR-Annealed is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 21 W/m·K (12.1 BTU/hr·ft·°F), better than 76% of stainless steel grades. Thermal expansion is 10.4 µm/m·K (5.78 µin/in·°F).
Electrical3
15Cr25Ti CR-Annealed conducts electricity at 2.6 % IACS, better than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (64/100), better than 54% of stainless steel grades.
Sustainability4
Producing a kilogram of 15Cr25Ti CR-Annealed takes about 52 MJ of energy and emits 4.6 kg of CO₂ — less than 76% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
15Cr25Ti CR-Annealed's machinability is fair (45/100, better than 84% of stainless steel grades); weldability fair (40/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 15Cr25Ti CR-Annealed
Is 15Cr25Ti easy to machine?
Machine like 446: rigid setup, sharp positive-rake carbide, ~60–90 m/min, heavy feed and flood coolant to cut through the work-hardening skin and abrasive Ti carbonitrides.
Can 15Cr25Ti be welded?
GTAW/GMAW with matching Ti-stabilized or austenitic 309/310 filler, low heat input, interpass below ~150 °C, no preheat above ~200 °C, and avoid slow cooling through 400–550 °C and 550–800 °C to prevent 475 °C and sigma embrittlement.
Can 15Cr25Ti be formed, bent or molded?
Cold form only thin gauges with generous bend radii (≥2t) and grain direction control; heavy sections should be warm formed at 200–400 °C because of the high ductile–brittle transition temperature.
What surface finishes work on 15Cr25Ti?
Pickle and passivate after hot work or welding to restore the Cr-rich film; mechanical polishing is possible but coarse ferrite grain limits mirror quality — do not anodize.
15Cr25Ti 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 |
|---|---|---|
| CGOST 5632 grade 15Х25Т | ≤ 0.15 | 0.1 |
| Si | ≤ 1 | 0.6 |
| Mn | ≤ 0.8 | 0.5 |
| Cr | 24 – 27 | 25.5 |
| Ti5×C min, stabilizer against IGC | 0.3 – 0.9 | 0.55 |
| Ni | ≤ 0.6 | 0.3 |
| Cu | ≤ 0.3 | — |
| S | ≤ 0.03 | — |
| P | ≤ 0.04 | — |
| Fe | balance | — |
15Cr25Ti CR-Annealed — frequently asked
What is 15Cr25Ti CR-Annealed used for?
15Cr25Ti CR-Annealed is typically used for furnace muffles and fixtures, heat-treatment baskets, industrial oven components and high-temperature exhaust parts. In short: highest-temperature ferritic grade; 1050 °C scaling resistance; low toughness and formability.
What is the yield strength of 15Cr25Ti CR-Annealed?
15Cr25Ti CR-Annealed has a typical yield strength of 320 MPa (46.4 ksi) and a tensile strength of 530 MPa (76.9 ksi) — weaker than 60% of stainless steel grades. Strength varies by condition: see the 5 listed tempers.
Is 15Cr25Ti CR-Annealed easy to machine?
Reasonably — machinability is rated fair (45/100, better than 84% of stainless steel grades). Machine like 446: rigid setup, sharp positive-rake carbide, ~60–90 m/min, heavy feed and flood coolant to cut through the work-hardening skin and abrasive Ti carbonitrides.
Can 15Cr25Ti CR-Annealed be welded?
With care — weldability is rated fair (40/100). GTAW/GMAW with matching Ti-stabilized or austenitic 309/310 filler, low heat input, interpass below ~150 °C, no preheat above ~200 °C, and avoid slow cooling through 400–550 °C and 550–800 °C to prevent 475 °C and sigma embrittlement.
What surface finishes work on 15Cr25Ti CR-Annealed?
Pickle and passivate after hot work or welding to restore the Cr-rich film; mechanical polishing is possible but coarse ferrite grain limits mirror quality — do not anodize.
Can 15Cr25Ti CR-Annealed be formed, bent or molded?
Cold form only thin gauges with generous bend radii (≥2t) and grain direction control; heavy sections should be warm formed at 200–400 °C because of the high ductile–brittle transition temperature.
What is the maximum service temperature of 15Cr25Ti CR-Annealed?
15Cr25Ti CR-Annealed is rated for continuous use to about 1,050°C (1,922 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 15Cr25Ti Annealed and 15Cr25Ti-CD?
Annealed is the default condition — standard stocked condition for plate, bar and tube; best ductility and IGC resistance before service. CD: higher strength and better size tolerance for machined fittings, bolting and furnace hardware in small diameters. Yield strength is 300 MPa in Annealed versus 500 MPa in CD.
Sources
- GOST 5632 — Corrosion-resistant, heat-resisting and creep-resisting steels and alloys (grade 15Х25Т) — Rosstandart (2014)
- GOST 7350 / GOST 5949 — thick plate and bar of corrosion- and heat-resisting steel — Rosstandart (1977)
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip (UNS S44600) — ASTM International (2023)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys (ferritic stainless 446) — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
- Marochnik Stalei i Splavov — 15Х25Т data sheet — Mashinostroenie (2003)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.