Stainless Steel 1.4335 CR-2B
Finish state
EN 1.4335
CR-2B = cold Rolled Sheet, annealed and pickled
Thin sheet for fabricated furnace liners, baskets and ducting where a smooth mill finish is wanted.
Values for the CR-2B condition
Other 1.4335 tempers and conditions
1.4335 is listed in 8 conditions; see the grade overview at 1.4335.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled Plate, annealed and pickled | Thick-section plate (≥3 mm) for furnace retorts, muffles and radiant tubes; matt pickled surface. | 260 | 560 | 45 | 155 HB | 2 % IACS |
ATDefault Solution Annealed | Standard stocked condition for plate, sheet, bar and tube in high-temperature and welded service. | 270 | 580 | 48 | 150 HB | — |
CR-2BThis page Cold Rolled Sheet, annealed and pickled | Thin sheet for fabricated furnace liners, baskets and ducting where a smooth mill finish is wanted. | 280 | 600 | 45 | 160 HB | 2 % IACS |
As-welded deposit | Use to describe fabricated weldments — ultra-low carbon avoids sensitisation so no PWHT is needed. | 320 | 560 | 35 | 165 HB | 2 % IACS |
Cold drawn | Choose when tighter tolerance, better surface and higher yield strength than annealed bar are required. | 450 | 700 | 30 | 17 HRC | 2 % IACS |
Quarter hard | Light temper rolled strip where extra stiffness/spring-back is needed but forming is still required. | 500 | 750 | 22 | 20 HRC | 2 % IACS |
Half hard | Higher strength strip for clips, straps and lightly formed structural parts; limited bend radius. | 650 | 900 | 12 | 28 HRC | 2 % IACS |
Full hard | Maximum-strength flat-rolled or drawn product for springs and shims; essentially no further forming. | 900 | 1,100 | 6 | 35 HRC | 2 % IACS |
What is 1.4335 CR-2B?
1.4335 CR-2B is 1.4335 supplied in the CR-2B condition — thin sheet for fabricated furnace liners, baskets and ducting where a smooth mill finish is wanted. 1.4335 CR-2B has a yield strength of 280 MPa (40.6 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 75% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 196 GPa (28.4 Msi). 1.4335 CR-2B has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F). AT is the default condition FabDigit quotes; CR-2B 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
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
- Forms and bends easily — 74/100, better than 86% of stainless steel grades
- Readily welded — 82/100, better than 84% of stainless steel grades
- Ductile — tolerates forming and impact — 45%, better than 76% of stainless steel grades
Limitations
- High embodied carbon — 5.8 kg CO₂/kg, worse than 86% of stainless steel grades
- Low electrical conductivity — 2 % IACS, worse than 77% of stainless steel grades
- Low strength — 280 MPa (40.6 ksi), worse than 75% of stainless steel grades
1.4335 CR-2B properties
Typical room-temperature values for 1.4335 CR-2B; 23 are specific to this condition. Other listed values are 1.4335 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
1.4335 CR-2B has a density of 7.9 g/cm³ (0.285 lb/in³), heavier than 68% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical16
1.4335 CR-2B has a yield strength of 280 MPa (40.6 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 75% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 196 GPa (28.4 Msi).
Thermal6
1.4335 CR-2B is rated for continuous service to 1,050°C (1,922 °F). It conducts heat at 14.5 W/m·K (8.38 BTU/hr·ft·°F), worse than 72% of stainless steel grades. Thermal expansion is 15.5 µm/m·K (8.61 µin/in·°F).
Electrical3
1.4335 CR-2B conducts electricity at 2 % IACS, worse than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (63/100), better than 53% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4335 CR-2B takes about 70 MJ of energy and emits 5.8 kg of CO₂ — more than 81% of stainless steel grades. Typical recycled content is 65%.
Manufacturability8
1.4335 CR-2B's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability very good (82/100); formability very good (74/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 1.4335 CR-2B
Is 1.4335 easy to machine?
Gummy and strongly work hardening — use rigid setups, positive-rake carbide, heavy positive feed, 15–25 m/min for HSS drilling and flood coolant to avoid glazing the cut.
Can 1.4335 be welded?
Excellent weldability by GTAW/GMAW/SMAW with matching 25/20 low-carbon filler (ER310L / E310-15); keep interpass ≤150 °C and heat input low to limit hot cracking and σ-phase, no post-weld solution anneal required.
Can 1.4335 be formed, bent or molded?
Cold forms well but needs ~50% more press force than 304 due to high work-hardening; hot work 1150–1200 °C and always finish above 950 °C, then solution anneal 1050–1120 °C with rapid cooling.
What surface finishes work on 1.4335?
Pickle/passivate per ASTM A967 after hot work or welding; electropolish or mechanical polish for clean surfaces — no anodising, and avoid carbon-steel tooling contamination.
1.4335 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 |
|---|---|---|
| Cultra-low carbon, prevents sensitisation | ≤ 0.02 | 0.02 |
| Si | ≤ 0.25 | 0.2 |
| Mn | ≤ 2 | 1.5 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.01 | 0 |
| Cr | 24 – 26 | 25 |
| Ni | 20 – 22 | 21 |
| N | ≤ 0.11 | 0.06 |
| Fe | balance | — |
1.4335 CR-2B — frequently asked
What is 1.4335 CR-2B used for?
1.4335 CR-2B is typically used for furnace components, heat exchangers, high-temperature fasteners and kiln linings. In short: highest-temperature austenitic here; no post-weld anneal needed; high-nickel, high cost.
What is the yield strength of 1.4335 CR-2B?
1.4335 CR-2B has a typical yield strength of 280 MPa (40.6 ksi) and a tensile strength of 600 MPa (87 ksi) — weaker than 75% of stainless steel grades. Strength varies by condition: see the 8 listed tempers.
Is 1.4335 CR-2B easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Gummy and strongly work hardening — use rigid setups, positive-rake carbide, heavy positive feed, 15–25 m/min for HSS drilling and flood coolant to avoid glazing the cut.
Can 1.4335 CR-2B be welded?
Yes — weldability is rated very good (82/100). Excellent weldability by GTAW/GMAW/SMAW with matching 25/20 low-carbon filler (ER310L / E310-15); keep interpass ≤150 °C and heat input low to limit hot cracking and σ-phase, no post-weld solution anneal required.
What surface finishes work on 1.4335 CR-2B?
Pickle/passivate per ASTM A967 after hot work or welding; electropolish or mechanical polish for clean surfaces — no anodising, and avoid carbon-steel tooling contamination.
Can 1.4335 CR-2B be formed, bent or molded?
Cold forms well but needs ~50% more press force than 304 due to high work-hardening; hot work 1150–1200 °C and always finish above 950 °C, then solution anneal 1050–1120 °C with rapid cooling.
What is the maximum service temperature of 1.4335 CR-2B?
1.4335 CR-2B 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 1.4335-AT and 1.4335-FH?
AT is the default condition — standard stocked condition for plate, sheet, bar and tube in high-temperature and welded service. FH: maximum-strength flat-rolled or drawn product for springs and shims; essentially no further forming. Yield strength is 270 MPa in AT versus 900 MPa in FH.
Sources
- EN 10088-1/-2/-3 Stainless steels — grades, sheet/plate and bar — CEN (2014)
- ASTM A240/A240M — Cr and Cr-Ni stainless plate, sheet and strip (S31008/S31003) — ASTM (2023)
- 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)
- 310S/310L high-temperature austenitic stainless datasheets — Outokumpu / Sandvik (2023)
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.