Stainless Steel 1.4371 CR-2B
Finish state · default condition
EN 1.4371
CR-2B = cold Rolled, Annealed & Pickled
Default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication.
Values for the CR-2B condition
Other 1.4371 tempers and conditions
1.4371 is listed in 7 conditions; see the grade overview at 1.4371.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled, Annealed & Pickled | Choose for thicker plate/coil (>3 mm) and welded structural work where surface finish is secondary. | 390 | 720 | 48 | 185 HB | — |
CR-2BDefaultThis page Cold Rolled, Annealed & Pickled | Default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication. | 420 | 750 | 50 | 195 HB | — |
Cold worked to Rm ≥ 700 MPa | Light temper roll for flatness and modest strength gain while keeping useful bendability. | 460 | 760 | 28 | 21 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 850 MPa | Mid temper for light structural sections, clips and formed panels needing higher proof stress. | 620 | 910 | 16 | 28 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1000 MPa | High-strength strip for roll-formed rails, clamps and lightweight transport profiles. | 820 | 1,060 | 10 | 33 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1150 MPa | Full-hard strip where strength-to-weight matters and only simple large-radius bending is required. | 980 | 1,210 | 6 | 38 HRC | 2.4 % IACS |
Cold worked to Rm ≥ 1300 MPa | Spring-temper strip/wire for flat springs and clips; essentially no cold formability beyond gentle bends. | 1,150 | 1,360 | 3 | 42 HRC | 2.4 % IACS |
What is 1.4371 CR-2B?
1.4371 CR-2B is 1.4371 supplied in the CR-2B condition — default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication. 1.4371 CR-2B has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi). 1.4371 CR-2B has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Advantages
- Forms and bends easily — 82/100, better than 94% of stainless steel grades
- Low embodied carbon — 3.4 kg CO₂/kg, better than 91% of stainless steel grades
- Ductile — tolerates forming and impact — 50%, better than 90% of stainless steel grades
Limitations
- Needs corrosion protection — 48/100, worse than 80% of stainless steel grades
1.4371 CR-2B properties
Typical room-temperature values for 1.4371 CR-2B; 14 are specific to this condition. Other listed values are 1.4371 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
1.4371 CR-2B has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical16
1.4371 CR-2B has a yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4371 CR-2B is rated for continuous service to 550°C (1,022 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 16.5 µm/m·K (9.17 µin/in·°F).
Electrical3
1.4371 CR-2B conducts electricity at 2.4 % IACS, better than 67% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 80% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4371 CR-2B takes about 46 MJ of energy and emits 3.4 kg of CO₂ — less than 88% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
1.4371 CR-2B's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability very good (78/100); formability very good (82/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 1.4371 CR-2B
Is 1.4371 easy to machine?
Machines like a tough 200-series austenitic: rigid setups, sharp positive-rake carbide, heavy constant feed and flood coolant to avoid the severe work-hardened skin.
Can 1.4371 be welded?
Readily welded by GTAW/GMAW/resistance methods without preheat or post-weld anneal; use 307/308L-type or over-alloyed filler and keep interpass temperature low, avoid arc-air gouging fume issues from Mn.
Can 1.4371 be formed, bent or molded?
Excellent deep-drawing and roll-forming behaviour but very high work-hardening rate — expect 20–30 % higher press loads and greater springback than 304, and generous bend radii in cold-worked tempers.
What surface finishes work on 1.4371?
Supplied as 2B/BA/No.4; pickle and passivate after welding, electropolish for hygiene or decorative work — not anodisable, and chloride-exposed surfaces should be coated.
1.4371 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 carbon — sensitisation resistant | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.5 |
| Mnaustenite stabiliser replacing Ni | 6 – 8 | 7 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.02 | 0.01 |
| Cr | 16 – 17 | 16.5 |
| Ni | 3.5 – 5.5 | 4.5 |
| Nsolid-solution strengthening + austenite stability | 0.15 – 0.2 | 0.17 |
| Fe | balance | — |
1.4371 CR-2B — frequently asked
What is 1.4371 CR-2B used for?
1.4371 CR-2B is typically used for structural sheet components, consumer appliance panels, railings and trim and hardware. In short: low-nickel 301/304 substitute; good weldability for 200-series; limited corrosion resistance.
What is the yield strength of 1.4371 CR-2B?
1.4371 CR-2B has a typical yield strength of 420 MPa (60.9 ksi) and a tensile strength of 750 MPa (109 ksi) — stronger than 64% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is 1.4371 CR-2B easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Machines like a tough 200-series austenitic: rigid setups, sharp positive-rake carbide, heavy constant feed and flood coolant to avoid the severe work-hardened skin.
Can 1.4371 CR-2B be welded?
Yes — weldability is rated very good (78/100). Readily welded by GTAW/GMAW/resistance methods without preheat or post-weld anneal; use 307/308L-type or over-alloyed filler and keep interpass temperature low, avoid arc-air gouging fume issues from Mn.
What surface finishes work on 1.4371 CR-2B?
Supplied as 2B/BA/No.4; pickle and passivate after welding, electropolish for hygiene or decorative work — not anodisable, and chloride-exposed surfaces should be coated.
Can 1.4371 CR-2B be formed, bent or molded?
Excellent deep-drawing and roll-forming behaviour but very high work-hardening rate — expect 20–30 % higher press loads and greater springback than 304, and generous bend radii in cold-worked tempers.
What is the maximum service temperature of 1.4371 CR-2B?
1.4371 CR-2B is rated for continuous use to about 550°C (1,022 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1.4371 CR-2B and 1.4371-C1300?
CR-2B is the default condition — default stock condition: cold-rolled annealed strip/sheet for deep drawing, roll forming and welded fabrication. C1300: spring-temper strip/wire for flat springs and clips; essentially no cold formability beyond gentle bends. Yield strength is 420 MPa in CR-2B versus 1,150 MPa in C1300.
Sources
- EN 10088-1 Stainless steels — List of stainless steels — CEN (2014)
- EN 10088-2 Stainless steels — Sheet/plate and strip for general purposes — CEN (2014)
- EN 10151 Stainless steel strip for springs (cold-worked tempers) — CEN (2002)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Low-nickel CrMnNi austenitic stainless strip datasheets (201LN / 1.4371 class) — Outokumpu / Acerinox / Aperam (2022)
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.